Answer:
X = 11 or -11
Step-by-step explanation:
You are using a magnifying glass that shows the image of an object that is six tin image of the termite seen through the magnifying glass. 9.5 mm The image length through the magnifying glass is millimeters.
When viewed through the magnifying glass, the termite appears to be approximately 1.58 mm in length.
When using a magnifying glass, the image of an object appears larger. In this case, the termite is being viewed through a magnifying glass that magnifies the image by a factor of six. The actual length of the termite is not mentioned in the given information. However, it is stated that the length of the image seen through the magnifying glass is 9.5 mm.To determine the actual length of the termite, we can divide the length of the image by the magnification factor. Therefore, the actual length of the termite would be 9.5 mm divided by 6, which is approximately 1.58 mm.Therefore, when viewed through the magnifying glass, the termite appears to be approximately 1.58 mm in length.For more questions on magnifying glass
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find the slope.
A laptop battery has 84% power after 1 hour of use and 52% after 3 hours of use.
9514 1404 393
Answer:
-16%/hour
Step-by-step explanation:
The slope formula is useful for that.
m = (y2 -y1)/(x2 -x1)
m = (52 -84)/(3 -1) = -32/2 = -16
The slope is -16% per hour.
Type the correct answer in the box.
Solve the given equation by completing the square.
Fill in the values of a, b, and c to complete the solutions.
the solutions to the equation have value of a=-4, b=1 and c=38.
define factorizationIn mathematics, factorization is the process of finding the factors of a given mathematical object, such as a number, polynomial, or matrix. Factors are objects that can be multiplied together to obtain the original object.
To solve the equation x² + 8x = 38 for x, we can use the following steps:
Move the constant term to the other side of the equation:
x² + 8x - 38 = 0
Using quadratic formula:x=(-b±√b²-4ac)/2a
x=(-8±√64-4×1×(-38))/2×1
x=-4+√38
or x=-4-√38
On comparing with x= a+ b √c
x= a- b √c
value of a=-4
b=1
c=38
Therefore, value of a=-4, b=1 and c=38.
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7(1 - y) = -3(y - 2)
What is it?
Answer:
7-7y=-3y+6
7-6=7y-3y
1=4y
4y÷4=1÷4
y=1/4
Answer:
y = 1.3
Step-by-step explanation:
Expressed in simplest a + bi form, (7-3i) + (x - 2i)² - (4i + 2x²) is
Therefore, the expression (7-3i) + (x - 2i)² - (4i + 2x²) in the simplest a + bi form is: -2x² - 1 - (4x + 7i)
What are the different forms of linear equation?Linear Equation General Form Example
Slope intercept form y = mx + b y + 2x = 3
Point–slope form y – y1 = m(x – x1 ) y – 3 = 6(x – 2)
General Form Ax + By + C = 0 2x + 3y – 6 = 0
Intercept form x/a + y/b = 1 x/2 + y/3 = 1
As a Function f(x) instead of y f(x) = x + C f(x) = x + 3
The Identity Function f(x) = x f(x) = 3x
Constant Functions f(x) = C f(x) = 6
Let's start by expanding the square term (x - 2i)² using the formula for (a + b)²:
(x - 2i)² = x² - 4xi + 4i²
Note that i² = -1, so we can simplify this expression to:
(x - 2i)² = x² - 4xi - 4
Substituting this expression and the given values into the original expression, we get:
(7 - 3i) + (x² - 4xi - 4) - (4i + 2x²)
Grouping the real and imaginary terms, we get:
(7 - 4 - 2x²) + (-3i - 4i - 4x) + (x²)
Simplifying the real part, we get:
-2x² - 1
Simplifying the imaginary part, we get:
-7i - 4x
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help please will give brainliest
Answer:
\(\frac{40}{27}\)
Step-by-step explanation:
We need to evaluate the sum of the following finite geometric series.
We need to define r and \(a_{n}\)
\(r = 1/3\)
\(a_{n} =(\frac{1}{3} )^{n-1}\)
Follow the geometric sequence sum formula and substitute :
\(1*\frac{1-(\frac{1}{3})^4 }{1-\frac{1}{3} }\)
Simplify :
\(1 * \frac{3*\frac{80}{81} }{2}\)
Get rid of the 1 :
\(\frac{3*\frac{80}{81} }{2}\)
Multiply the numerators :
\(\frac{\frac{80}{27} }{2}\)
Move the denominator of the fraction in the numerator and move it to the denominator of the whole fraction :
\(\frac{80}{27*2}\)
Multiply the denominators :
\(\frac{80}{54}\)
Simplify by dividing both the numerator and denominator by 2 :
\(\frac{40}{27}\)
what are the answers these questions?
The value of dy is 0.25, when x=1 and dx =0.3.
How to solve differentiation?
\(y=e^{x/2}\)
Concept :
\(y=e^x\\\frac{dy}{dx} = e^x\)
Taking differentiation on both side, we get
\(\frac{dy}{dx} = \frac{1}{2}\ e^{x/2}\\\)
Put the values of x and dx, we get
\(dy = 0.5 \times 0.3 \times e^{0.5}\\dy = 0.25\)
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Which is larger?
Circle your answer.
E.
3+ 6 x 2 OR (-3-6) - (-25)?
The first part I work out as 15 but stuck on the second set of numbers
Answer:
The first equation is equal to 15 and the second one is equal to 16 . So the second equation is bigger.
If a = 11 ft, b = 5 ft, and c = 7 ft, what is the surface area of the geometric shape formed by this net?
In a case where a = 11 ft, b = 5 ft, and c = 7 ft, the surface area of the geometric shape formed by this net is B. 145 sq. ft.
How can the surface area of the geometric shape be calculated?The concept that will be used here is area of triangle, we will we need need to know the area of the first 2 triangles
The area of the triangle can be expressed as :
A =( 1/2 bh)
A = (1/2 ba)
Then substitute the values we have,
a = [1/2 (11 ft.) (5 ft)]
a = 27.5 sq ft.
Then we can find the value of the area as :
A = [1/2 c*b]
If we substitue the values we,
a = [1/2 (5 ft) (7 ft)]
= 17.5 sq. ft
Then we can proceed to calculate the area of the rectangle which can be done using the formula:
A = (lw) where a = (11 ft.)(5 ft.) = 55 sq. ft
We can now find the summation of all the a's as :
[2(27.5) + 2(17.5 ) + 55 ]
= 145 sq. ft.
Therefore, option B is correct.
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missing options:
A. 167 sq. ft.
B. 145 sq. ft.
C. 117.5 sq. ft.
D. 147 sq. ft.
Name the triangle with the following characteristics. sides: 5 cm, 6 cm, 7 cm; Angles: 75° and 60°. yeah
Answer:
Step-by-step explanation:
this triangle is regular one
we can't apply the pytahgorian theorem 5²+6²≠7² the angles have different sizes 75≠60≠45the sides have different lengths 5≠6≠7Answer:
obtuse scalene triangle
11 more than nine times the amount of 10
This is a word problem and our approach is to make mathematical sense of it as much as possible.
\(11+9\times10\)represents 11 more than 9 times of 10. We'll equally use BODMAS.
\(11+(9\times10)=11+90=101\)ANSWER = 101
px+6=5(x-q)
Pls help mee
p = 5 - 5q/x - 6/x
q = - px/5 - 6/5 + x
The value of p is 2 and value of q = 0.
What is an mathematical expression?Using operations like addition, subtraction, multiplication, and division, a mathematical expression is defined as a group of numerical variables and functions.
The given expression is,
px+6=5(x-q)
Where x = 2
So put value of x in the given expression
⇒2p + 6 = 5(2 - q)
⇒2p + 6 = 10 - 5q
⇒ 2p + 5q = 4
Put q = 0 we get
p = 2
Therefore, p = 2 and q = 0
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help pls pls pls pls pls pls pls pls lls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls
Answer:
2+3+6
Step-by-step explanation:
answer- option D
2+3+6
Answer:
2 +3+6
Step-by-step explanation:
it would = 11 the others equals the same
Among all pairs of numbers whose sum is 24, find a pair whose product is as large as possible. Show the work(the steps)! Write an equation of the corresponding quadratic function. How parabola opens? What is the maximum product? Does this function has a maximum value or the minimum value? Explain. Graph the function and upload the image.
The pair of numbers that yields the maximum product when their sum is 24 is (12, 12), and the maximum product is 144. The corresponding quadratic function is P(x) = -x^2 + 24x, and the parabola opens downwards.
To find a pair of numbers whose sum is 24 and whose product is as large as possible, we can use the concept of maximizing a quadratic function.
Let's denote the two numbers as x and y. We know that x + y = 24. We want to maximize the product xy.
To solve this problem, we can rewrite the equation x + y = 24 as y = 24 - x. Now we can express the product xy in terms of a single variable, x:
P(x) = x(24 - x)
This equation represents a quadratic function. To find the maximum value of the product, we need to determine the vertex of the parabola.
The quadratic function can be rewritten as P(x) = -x^2 + 24x. We recognize that the coefficient of x^2 is negative, which means the parabola opens downwards.
To find the vertex of the parabola, we can use the formula x = -b / (2a), where a = -1 and b = 24. Plugging in these values, we get x = -24 / (2 * -1) = 12.
Substituting the value of x into the equation y = 24 - x, we find y = 24 - 12 = 12.
So the pair of numbers that yields the maximum product is (12, 12). The maximum product is obtained by evaluating the quadratic function at the vertex: P(12) = 12(24 - 12) = 12(12) = 144.
Therefore, the maximum product is 144. This quadratic function has a maximum value because the parabola opens downwards.
To graph the function, you can plot several points and connect them to form a parabolic shape. Here is an uploaded image of the graph of the quadratic function: [Image: Parabola Graph]
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Hubble's constant H is about 70 km/sec per megaparsec. (The prefix "mega" means million.) Convert this value for Hubble's constant to km/s/million LY. Hint: -A parsec is 3.26 light-years, and therefore a megaparsec is 3.26 million LY. If you take the given value of the Hubble constant (namely, 70 km/s per megaparsec) and replace the megaparsec with 3.26 million LY, then you will have converted to the desired units.
Hubble's constant in units of km/s/million LY is approximately 21.47.
what is approximately ?
Approximately means close to or nearly, but not exactly. It is used to indicate that a value or number is an estimation or approximation, rather than an exact value. It is often used when a precise value is not necessary or when the exact value is unknown or difficult to determine.
In the given question,
To convert Hubble's constant from km/s/Mpc to km/s/million LY, we need to multiply it by a conversion factor that accounts for the difference in distance units. We can use the fact that 1 Mpc is equal to 3.26 million LY:
1 Mpc = 3.26 million LY
Therefore, to convert Hubble's constant from km/s/Mpc to km/s/million LY, we can use the following conversion factor:
1 Mpc / 3.26 million LY
Multiplying Hubble's constant by this conversion factor gives:
H = 70 km/s/Mpc x (1 Mpc / 3.26 million LY) = 21.47 km/s/million LY
Therefore, Hubble's constant in units of km/s/million LY is approximately 21.47.
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3.1 Which basic property of operations was used in each of the following
calculations?
3.1.1 25 x 4 = 4 x 25 = 100
3.1.2 412 412 412 + (-412) = 0
3.1.3 25 +37
-
=
= 20 + 5+ 30+7
= 20 +30 +5+7
= 50+ 12 = 62
3.1.1 The basic property of operations used is the commutative property of multiplication.
3.1.2 The basic property of operations used is the additive inverse property.
3.1.3 The basic property of operations used is the associative property of addition.
3.1.1 The basic property of operations used in this calculation is the commutative property of multiplication. It states that the order of the factors in a multiplication problem can be rearranged without changing the product. In this case, the numbers 25 and 4 were swapped, resulting in the same product of 100.
3.1.2 The basic property of operations used in this calculation is the additive inverse property. It states that for any number, there exists an additive inverse such that when the number and its additive inverse are added together, the result is zero. In this case, adding 412 and its additive inverse (-412) results in zero.
3.1.3 The basic property of operations used in this calculation is the associative property of addition. It states that the grouping of numbers being added does not affect the sum. In this case, the numbers 25, 37, 20, 5, 30, and 7 were regrouped to facilitate easier mental addition. By grouping 25 and 37, and then grouping 20, 5, 30, and 7, the final sum of 62 is obtained, which is the same as adding all the numbers together in the original order.
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75=(14y+5)
Please help me i cant figure this out
75=14y+5
or, -14y=5-75
or, -14y = -70
or, y = -70/-14 = 5
The answer is 5.
Answer: Slove for the y in 75
= (14y + 5)
Then subsitute the y = 5 into 75 = (14y + 5)
75 = 75
Since 75 = 75 is redudat information , this seems to be a dependent system.
Infinitely Many solutions.
5 Signs for science project displays are cut of poster board that measure 1 yard on each side. Each sign is-yard long and-yard wide. How ma signs can be cut from 1 piece of poster board? Wh the area of each sign? Show your work.
Answer:
\(\text{27}\)
Step-by-step explanation:
Given that :
\(\text{Dimension of poster board} = 1 \ \text{yd} \ \text{by} \ 1 \ \text{yd}\)
\(\text{Dimension of each poster board} = \dfrac{1}{3} \ \text{yd} \ \text{by} \ \dfrac{1}{9} \ \text{yd}\)
Number of poster signs that can be cut :
\(\text{Area of poster sign} = \dfrac{1}{3} \times \dfrac{1}{9} = \dfrac{1}{27} \ \text{yard}^2\)
\(\text{Area of poster board} = 1 \ \text{yard}^2\)
Number of poster signs that can be cut :
\(\dfrac{\text{Area of poster board}}{\text{Area of poster sign}}\)
\(1 \ \text{yard}^2\div (\dfrac{1}{27} ) \ \text{yard}^2\)
\(1 \div \dfrac{1}{27}\)
\(1 \times \dfrac{27}{1}\)
\(\bold{= 27 \ poster \ signs}\)
Please help me with this math problem
Answer:
\(7x^2-2x-2\)
Step-by-step explanation:
\(-3x^2+9+10x^2-11-2x\)
Combine like terms:
\(10x^2-3x^2-2x+9-11\)
Simplify:
\(7x^2-2x-2\)
Hope this helps!
Answer: 7x^2 - 2x - 2
Step-by-step explanation:
in this expression, all you have to do is combine like terms. those are -3x^2 and 10x^2, 9 and -11.
-3x^2 + 9 + 10x^2 - 11 - 2x rearrange to make easier
-3x^2 + 10x^2 - 2x + 9 - 11 combine like-terms
7x^2 - 2x - 2
Given y=4x+2, find the domain value if the range value is 4
The domain value that corresponds to a range value of 4 is,
⇒ x = 1/2
Given that;
Function is,
y = 4x + 2
Since, the equation equal to the range value:
4 = 4x + 2
Then, we can solve for "x":
4 - 2 = 4x
2 = 4x
x = 1/2
Now that we have the value of "x", we can find the corresponding value of "y" by substituting it into the given equation:
y = 4x + 2
y = 4(1/2) + 2
y = 4 + 2
y = 6
Therefore, the domain value that corresponds to a range value of 4 is,
⇒ x = 1/2
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Points A (4, 3), B (6, 4), C (5, 6) and D (3, 5) are the vertices of a square ABCD. The square ABCD is reflected about the line through (0, 0) and (-2, 2). Find the vertices of the image of the square ABCD and present both the figures on the same graph.
The vertices of the reflected square.
Let's calculate them:
A' = (-0.914, 3.914)
B' = (-2.828, 5.828)
C' = (-0.086, 7.086)
D' = (1.828, 5.172)
The vertices of the image of the square ABCD after reflecting it about the line through (0, 0) and (-2, 2), we can use the following steps:
Find the equation of the reflection line:
The reflection line passes through (0, 0) and (-2, 2).
We can calculate the slope (m) of the line using the formula (y2 - y1) / (x2 - x1):
m = (2 - 0) / (-2 - 0) = 2 / -2 = -1.
Using the point-slope form of a line (y - y1) = m(x - x1), we can use either of the given points to write the equation of the line:
y - 0 = -1(x - 0)
y = -x.
Find the midpoint of each side of the square:
The midpoints of the sides of a square are also the midpoints of its diagonals.
The midpoint of AB is ((4+6)/2, (3+4)/2) = (5, 3.5).
The midpoint of BC is ((6+5)/2, (4+6)/2) = (5.5, 5).
The midpoint of CD is ((5+3)/2, (6+5)/2) = (4, 5.5).
The midpoint of DA is ((3+4)/2, (5+3)/2) = (3.5, 4).
Reflect the midpoints about the line:
To reflect a point (x, y) about the line y = -x, we can find the perpendicular distance (d) from the point to the line and use it to determine the reflected point.
The perpendicular distance d from the line y = -x to a point (x, y) is given by the formula:
d = (y + x) / √(2).
The coordinates of the reflected points can be found using the formula for reflection across a line:
x' = x - 2d / √(2)
y' = y - 2d / √(2).
Calculate the reflected vertices:
The coordinates of the reflected vertices are as follows:
A' = (4 - 2(3.5 + 5) / √(2), 3 - 2(3.5 - 5) / √(2))
B' = (6 - 2(5 + 5) / √(2), 4 - 2(5 - 5) / √(2))
C' = (5 - 2(5.5 + 5) / √(2), 6 - 2(5.5 - 5) / √(2))
D' = (3 - 2(4 + 5) / √(2), 5 - 2(4 - 5) / √(2))
Now we can plot the original square ABCD and its image A'B'C'D' on the same graph to visualize the reflection.
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f(x) = x² - 4 and g(x)= x^2 + 1 are sketched 10.1.2 Determine the length of DB .
x⁴ - 8x² + 17 is the function that represents the fog(x).
To find fog(x), we first need to find g(f(x)), which means we need to substitute the expression for f(x) into the expression for g(x):
g(f(x)) = g(x² - 4)
Now, we can substitute the expression for g(x) into the above expression:
g(f(x)) = (x² - 4)² + 1
Expanding the squared term, we get:
g(f(x)) = x⁴ - 8x² + 17
Therefore, fog(x) = g(f(x)) = x⁴ - 8x² + 17.
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Complete question:
f(x) = x² - 4 and g(x)= x^2 + 1 find fog(x).
Someone needs to borrow $14,000 to buy a car and the person has determined that monthly payments of $250 are affordable. The bank offers a 4-year loan at 6% APR, a 5-year loan at 6.5%, or a 6-year loan at 7% APR. Which loan best meets the person's needs? Explain.
Which loan best meets the person's needs? (Round to the nearest cent)
A. The first loan best meets the person's needs because the monthly payment of $___ is less than the maximum budgeted amount of $250 per month.
B. The second loan best meets the person's needs because the monthly payment of $___ is less than the maximum budgeted amount of $250 per month.
C. The thirdloan best meets the person's needs because the monthly payment of $___ is less than the maximum budgeted amount of $250 per month.
D. None of the loans meet the person's needs.
Answer: 7% at 6 years would best fit their payment option. They would then be paying $238.69 monthly and which is under $250, I hope this helps!
A circle in the xy-plane has a center at (-32.7, -9.08) and a radius of V10. Which of thefollowing is an equation of the circle?А(x + 32.7)2 + (y +9.08)2 = V10B(x + 32.7)2 + (y +9.08)2 = V20(x + 32.7)2 + (y +9.08)2 = 10D(x +32.7)2 + (y +9.08)2 = 100
The general equation of a circle with the center at the point (a,b) and radius r is:
\((x-a)^2+(y-b)^2=r^2\)Since the coordinates of the center of this problem's circle are negative, they will be adding to the x and y variables. And the radius is sqrt(10) so when it's squared it gives 10. The equation is:
\((x+32.7)^2+(y+9.08)^2=10\)The correct answer is option C
How's the economy? A pollster wants to construct a confidence interval for the proportion of adults who believe that economic conditions are getting better. Part: 0 / 20 of 2 Parts Complete Part 1 of 2 (a) A poll taken in July estimates this proportion to be . Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of ? A sample of adults is needed to obtain a confidence interval with a margin of error of .
Complete Question
The complete question is shown on the first uploaded image
Answer:
a
The sample size is \(n =944\)
b
The sample size is \(n_b = 1068\)
Step-by-step explanation:
From the question we are told that
The proportion is mathematically represented as \(\r p = 0.33\)
The marginal error is \(e = 0.03\)
The confidence level is 95 % = 0.95
The z-value of the confidence level is
\(z_c = 1.96\)
This value is obtained from the z table
The sample size is mathematically evaluated as
\(n = [\frac{z_c}{e} ]^2 * \r p(1- \r p)\)
substituting values
\(n = [\frac{1.96}{0.03} ]^2 * 0.33 (1- 0.33)\)
\(n =944\)
If no estimate is available the let assume \(\r p = 0.50\)
So
\(n_b = [\frac{z_c}{e} ]^2 * \r p(1- \r p)\)
substituting values
\(n_b = [\frac{1.96}{0.03} ]^2 * 0.50 (1- 0.50)\)
\(n_b = 1068\)
Someone Help me please
Answer:
25
Step-by-step explanation:
You plug in the g(x) function into the f(x) function as the x, after this you replace the x with -1 and solve for you answer, so it should look like
f(g(x))=(2x+7)^2
f(g(-1)=(2*-1+7)^2=25
I will give brainliest. I need help ASAP.
Answer:
\I got not answer cause im da BUDDHA
But gimme brainliest squekky plssss
A garden is 90m long and 80m broad. A path 5m wide is to be build outside and around it. Find the area of the path. Also find the cost of cementing the path at the rate of Rs.200 per m².
Answer:
1. Area of the path = 1800 m²
2. The cost of cementing the path = Rs. 360000
Step-by-step explanation:
Dimension of the garden = 90 m by 80 m.
Width of path = 5 m
1. Area of the path = Area of the path with garden - Area of the garden
Area of the garden = length x breadth
= 90 x 80
= 7200
Area of the garden is 7200 m².
Area of the garden with path = length x breadth
But, length = 90 + 10 = 100 m
breadth = 80 + 10 = 90 m
Area of the garden with path = 100 x 90
= 9000
Area of the garden with path = 9000 m²
Area of the path = 9000 - 7200
= 1800 m²
2. The cost of cementing the path = Rs.200 x 1800
= Rs. 360000
House representatives are elected every two years the President of the United States is elected every four years both will be elected in 2004 when is the next year after 2004 for both will be elected
07, The present age of Queens University College is three times that of GAGE University College. After 5 years, the difference of their ages will be 30 years. Find the present ages of Queens and GAGE University College?
Answer: Thus, the present age of Queens University College is 45 years, and the present age of GAGE University College is 15 years.
Step-by-step explanation: Let Q be the present age of Queens University College and G be the present age of GAGE University College.
Since the present age of Queens University College is three times that of GAGE University College, we can write the equation Q = 3G.
After 5 years, the difference of their ages will be 30 years, so we can write the equation Q + 5 = G + 30.
Substituting the first equation into the second equation, we get 3G + 5 = G + 30.
Solving for G, we find that G = 15.
Substituting this value into the equation Q = 3G, we find that Q = 3 * 15 = 45.
Thus, the present age of Queens University College is 45 years, and the present age of GAGE University College is 15 years.