Answer:
88
Step-by-step explanation:
(22 percent / 100 percent)× the required number 22/100 = 0.220.22×400 = 88Find the value of x
8,
9,
7,
10
The value of x in this problem, considering the intersecting chords, is given as follows:
x = 10.
How to obtain the value of x?A chord of a circle is a straight line segment that connects two points on the circle, that is, it is a line segment whose endpoints are on the circumference of a circle.
When two chords intersect each other, then the products of the measures of the segments of the chords are equal.
Hence the value of x is obtained as follows:
12x = 15 x 8
12x = 120
x = 10.
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URGENT!!! Find the surface area of the regular pyramid to the nearest hundredth.
Answer:
632.83mm²
Step-by-step explanation:
Applying Pythagorean theorem to triangle SOH
SH² = SO² + OH²
SH = \(\sqrt{(15.4)^2+(7.2)^2}=17mm\)
Since the base of the pyramid is a regular pentagon, angle OAH
is 108°/2 = 54°.
AH = 7.2/tan 54° = 5.23mm
So AB = 2AH = 10.46mm
The area of triangle SAB is:
A1 = 1/2 × SH × AB = 1/2 × 17 × 10.46 = 88.91mm²
The area of all triangles is
A2 = 5 × A1 = 5 × 88.91 = 444.55mm²
The area of the base is:
A3 = (perimeter × apothem)/2 = (5 × 10.46 × 7.2)/2 = 188.28mm²
The surface area of the pyramid is:
A2 + A3 = 444.55 + 188.28 = 632.83mm²
Step-by-step explanation:
the surface area is the sum of the base area (pentagon) and the 5 side triangles (we only need to calculate one and then multiply by 5, as they are all equal).
these side triangles are isoceles triangles (the legs are equally long).
the usual area formula for a pentagon is
1/2 × perimeter × apothem
the apothem is the minimum distance from the center of the pentagon to each of its sides.
in our case this is 7.2 mm.
how to get the perimeter or the length of an individual side of the pentagon ?
if the apothem of a pentagon is given, the side length can be calculated with the formula
side length = 2 × apothem length × tan(180/n)
where 'n' is the number of sides (5 in our case). After getting the side length, the perimeter of the pentagon can be calculated with the formula
perimeter = 5 × side length.
so, in our case
side length = 2 × 7.2 × tan(180/5) = 14.4 × tan(36) =
= 10.4622124... mm
perimeter = 5 × 10.4622124... = 52.31106202... mm
area of the pentagon = 1/2 × perimeter × apothem =
= 1/2 × 52.31106202... × 7.2 = 188.3198233... mm²
now for the side triangles.
the area of such a triangle is
1/2 × baseline × height
baseline = pentagon side length
height we get via Pythagoras from the inner pyramid height and the apothem :
height² = 7.2² + 15.4² = 51.84 + 273.16 = 289
height = 17 mm
area of one side triangle =
1/2 × 10.4622124... × 17 = 88.92880543... mm²
all 5 side triangles are then
444.6440271... mm²
and the total surface area is then
444.6440271... + 188.3198233... = 632.9638504... mm²
≈ 632.96 mm²
Solving linear functions
Given : a linear function 3=x+3-5x
Find : the solution of the given function.
Explanation: 3 =x + 3 - 5x
x - 5x = 0
-4x = 0
x=0
Final answer: the required solution of the given linear function is x=0
Kim is selling bags of mini churros at a school fair for $10 per bag. Complete the table to show the prices you would pay for different numbers of bags of churros.
Answer:
10, 20, 5
Step-by-step explanation:
she's selling 1 bag for 10 dollars
The first row says 1 bag, that is 10 dollars so the answer is 10
The second row says 2 bags, so you just do 10 times 2. This is 20
The third row gives you the amount of money instead. Since they are 10 dollars each, 50 dollars means 5 bags of churros. I just did 50 divided by 10 to get 5 :)
You start at (0,-4). You move left 1 unit and right 4 units. where do you end?
If you start at (0,-4) and you move left 1 unit and right 4 units, you end at (3, -4)
Calculating the endpoint of the pointFrom the question, we have the following parameters that can be used in our computation:
Start = (0, -4)
Also, we have
You move left 1 unit and right 4 units
Mathematically, this can be expressed as
(x, y) = (x - 1 + 4, y)
Substitute the known values in the above equation, so, we have the following representation
Endpoint = (0 - 1 + 4, -4)
Evaluate the expression
Endpoint = (3, -4)
Hence, the endpoint is (3, -4)
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4 brainliest
steal points and i report u
UvU good luck
Answer:
Pen:paper
Step-by-step explanation:
Answer:
pen and paper
Step-by-step explanation:
sorry if it is worng I am not good at this things
What is the image point of (-1, -3) after the transformation D₂ o T 4.-5?
The image of the point after the transformation is (2, -7)
How to image of the point after the transformation?The given parameters are:
Point = (-1, 3)
Transformation rule:
D₂ o T 4.-5
The above means that
Dilation by a scale factor of 2Followed by a translation of (4, -5)When these transformations are combined, we have
(x, y) = (2x + 4, 2x - 5)
So, the mathematical representation of this transformation is
(x, y) = (2x + 4, 2x - 5)
Substitute the equation Point = (-1, -3) in the equation (x, y) = (2x + 4, 2x - 5)
So, we have the following equation
(x, y) = (2(-1) + 4, 2(-1) - 5)
Evaluate the product
(x, y) = (2, -7)
Hence, the image is (x, y) = (2, -7)
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A garden table and a bench cost $996 combined. The garden table costs $46 more than the bench. What is the cost of the bench?
Answer:
The cost of the bench is $475
Step-by-step explanation:
Let cost of garden table= x and cost of bench= y
x + y = 996 (eqn 1)
x - y = 46 (eqn 2)
eqn 1 + eqn 2
2x = 1042
2x/2 = 1042/2
x = 521
The cost of the garden table is $521.
Substitute x = 521 into eqn 1
x + y = 996
521 + y = 996
y = 996 - 521
y = 475
The cost of the bench is $475.
INVESTMENT A poor investment is expected to decrease in value by 5% every year.
The expected rate of return for a poor investment is the expected return minus the expected loss. the expected return on the investment would be $20.
Step 1: Determine the investment amount. Let's assume the investment amount is $1,000.Step 2: Calculate the expected rate of return. To calculate the expected rate of return, you need to take the estimated return on the investment and subtract the amount of risk associated with the investment. For example, if the investment has a 5% expected return and a 3% risk, the expected rate of return would be 2%. Therefore, the expected rate of return for a poor investment of $1,000 would be 2%.Step 3: Multiply the expected rate of return by the investment amount. To calculate the expected return on the investment, multiply the expected rate of return (2%) by the investment amount ($1,000). Therefore, the expected return on the investment would be $20.
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What is the expected rate of return for a poor investment?
After eating 75% of the chocolates in a box, Dev found 6 chocolates remaining. How many chocolates were there in the box originally?
Answer:
24
Step-by-step explanation:
Let total number of the chocolates be x.
25% of x = 6 (because 100 - 75 = 25% of chocolates left).
25/100 x x = 6
x = 600/25
x = 24
Hence, 24 is the total amount of chocolates.
Hope it helps :)
Mr. Yen and Mrs. Barnes both have beautiful flower gardens. Mr. Yen has 7 rose bushes for every 3 lilac bushes. Mrs. Barnes has 9 rose bushes for every 4 lilac bushes. Whose garden has a higher lilac to rose ratio?
Answer:
Mrs Barnes has the highest
(36^5-6^9)(38^9-38^8) is divisible by 30 and 37 but the answer is _ x 30 x 37
it is true that the expression (36⁴−6⁹)(38⁹−38⁸) is divisible by 30 and 37
Carl Friedrich Gauss introduced the fundamental principle of number theory in 1801, which states that any integer higher than one can be expressed as the product of prime numbers only in one way. Number theory is also referred to as arithmetic. Addition, subtraction, multiplication, and division are the four foundational operations in mathematics. Below, a quick discussion of all these operations is provided.
The expression is given as:
(36⁴−6⁹)(38⁹−38⁸)
Express 36 as 6²
(36⁴ - 6⁹) = (6²)⁴ - 6⁹
= 6⁸ - 6⁹
= 6⁷(6 - 6²)
= 6⁷(6 - 36)
= 6⁷(-30)
=(38⁹ - 38⁸)
= 38⁸(38 - 1)
= 38⁸(37)
=(36⁴−6⁹)(38⁹−38⁸)
=6⁷(-30) × 38⁸(37)
=(30)(37)(-6⁷)(38⁸)
Clearly, 30 and 37 are factors, so divisible by them.
The complete question is-
Prove that the value of the expression: b (36^5−6^9)(38^9−38^8) is divisible by 30 and 37.
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Find the product
3(z+4)(x-5)
Answer:
3zx-15z+12x-60
Step-by-step explanation:
first do parenthesis and distribute (z+4)(x-5) into zx-5z+4x-20
then distribute the 3 to get the answer
The lowest recorded temperature in Wisconsin is -55°F on February 4, 1996. Use the expression 5(F-32)/9 to find this temperature in degrees Celsius. Round to the nearest tenth. Explain its meaning
Answer:
-48.3° Celsuis
Step-by-step explanation:
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The height of the tank is 11 m and the radius of the tank is 5 m. the height of the water is 6 m and the radius of the water is 3 m. how much more water in cubic meters could you fit in the tank?
Answer:
221 cubic metre.
Step-by-step explanation:
Volume of water in tank (v) = π × {3}^{2} × 6
= 54π cubic metre
Volume of tank (v') = π × {5}^{2} × 11
= 275π cubic metre
More Water that can be fit in the tank = v' - v
=275π - 54π
= 221π cubic metre.
ANS.
Solve them please give Brainly
Answer:
1) x = 0, 2) u = 5, 3) h = - 7, 4) n = 2, 5) x = 8, 6) r = 7--------------------------------------
Solve given equationsSteps should be self-explanatory. Happy to explain if anything is not clear.
Question 14x + 7 = 74x = 7 - 74x = 0x = 0Question 23(u + 4) = 27u + 4 = 27/3u + 4 = 9y = 9 - 4u = 5Question 3- 20 = 10(h + 5)-20/10 = h + 5- 2 = h + 5h = - 2 - 5h = - 7Question 4- 10 = (n - 52) / 5- 10*5 = n - 52- 50 = n - 52n = - 50 + 52n = 2Question 548/x - 3 = 348/x = 3 + 348/x = 6x = 48/6x = 8Question 68r = 2r + 428r - 2r = 426r = 42r = 42/6r = 7Answer:
v = 0u = 5h = -7 n = 2 x = 8 r = 7Step-by-step explanation:
1) 4v + 7 = 7, for v?
→ 4v + 7 = 7
→ 4v = 7 - 7
→ v = 0/4
→ [ v = 0 ]
2) 3(u + 4) = 27, for u?
→ 3(u + 4) = 27
→ 3u + 12 = 27
→ 3u = 27 - 12
→ u = 15/3
→ [ u = 5 ]
3) -20 = 10(h + 5), for h?
→ -20 = 10(h + 5)
→ 10h + 50 = -20
→ 10h = -20 - 50
→ h = -70/10
→ [ h = -7 ]
4) -10 = (n - 52)/5, for n?
→ -10 = (n - 52)/5
→ n - 52 = -10 × 5
→ n = -50 + 52
→ [ n = 2 ]
5) (48/x) - 3 = 3, for x?
→ (48/x) - 3 = 3
→ 48/x = 3 + 3
→ 6x = 48
→ x = 48/6
→ [ x = 8 ]
6) 8r = 2r + 42, for r?
→ 8r = 2r + 42
→ 8r - 2r = 42
→ r = 42/6
→ [ r = 7 ]
These are required values.
ON Tuesday, Marie walks her dog 4/5 mile, and Randy walk his dog 2/3 mile. how much farther did Marie walk than Randy
Answer:
2/15
Step-by-step explanation:
4/5 - 2/3 = 12/15 - 10/15 = 2/15
Find the area of the shaded region. 100 POINTS + BRAINLIEST
Please help me.
Answer and Explanation:
First, we can find the factored areas of the circle (the non-shaded area) and the rectangle (which includes the shaded and non-shaded areas).
We can use the rule:
if \(x^2 + cx + d = (x + a)(x + b)\), then \(c = a + b\) and \(d = a \cdot b\).
__
\(A_\circ = \dfrac{x+1}{x^2 + 6x + 8}\)
\(\boxed{A_\circ = \dfrac{x+1}{(x + 2)(x + 4)}}\)
__
\(A_\square = \dfrac{x+1}{x^2 - 6x -16}\)
\(\boxed{A_\square = \dfrac{x+1}{(x+2)(x-8)}}\)
Since we want to subtract the area of the circle from the area of the rectangle, we need them to have a common denominator.
We can achieve this by multiplying the area of the circle by \(\dfrac{(x-8)}{(x-8)}\) and the area of the rectangle by \(\dfrac{(x+4)}{(x+4)}\) because then both fractions will have the denominator \((x+2)(x+4)(x-8)\).
\(A_\circ = \dfrac{(x+1)(x-8)}{(x + 2)(x + 4)(x-8)}\)
\(A_\square = \dfrac{(x+1)(x+4)}{(x+2)(x-8)(x+4)}\)
Now that they have a common denominator, we can subtract them to get the area of the shaded region.
\(A_\text{shaded} = A_\square - A_\circ\)
\(A_\text{shaded} = \left(\dfrac{(x+1)(x+4)}{(x + 2)(x + 4)(x-8)}\right) - \left(\dfrac{(x+1)(x-8)}{(x+2)(x+4)(x-8)}\right)\)
Now, we can foil out the numerators of each fraction and combining like terms.
\(A_\text{shaded} = \left(\dfrac{x^2 + 5x + 4}{(x + 2)(x + 4)(x-8)}\right) - \left(\dfrac{x^2 - 7x - 8}{(x+2)(x+4)(x-8)}\right)\)
↓ rewriting as one fraction ... \(\dfrac{x}{y} - \dfrac{z}{y} = \dfrac{x-z}{y}\)
\(A_\text{shaded} = \dfrac{ (x^2 + 5x + 4) - (x^2 - 7x - 8)}{(x + 2)(x + 4)(x-8)}\)
↓ distributing the negative
\(A_\text{shaded} = \dfrac{x^2 + 5x + 4 - x^2 + 7x + 8}{(x + 2)(x + 4)(x-8)}\)
↓ grouping like terms
\(A_\text{shaded} = \dfrac{(x^2 - x^2) + (5x + 7x) + (4 + 8)}{(x + 2)(x + 4)(x-8)}\)
↓ combining like terms
\(\boxed{A_\text{shaded} = \dfrac{12x + 12}{(x + 2)(x + 4)(x-8)}}\)
Given the polynomial 9x2y6 − 25x4y8, rewrite as a product of polynomials.
(9xy3 − 25x2y4)(xy3 + x2y4)
(9xy3 − 25x2y4)(xy3 − x2y4)
(3xy3 − 5x2y4)(3xy3 + 5x2y4)
(3xy3 − 5x2y4)(3xy3 − 5x2y4)
Answer:
Option 3
(3xy³ + 5x²y⁴) (3xy³ - 5x²y⁴)
Step-by-step explanation:
Factorize polynomials:
Use exponent law:
\(\boxed{\bf a^{m*n}=(a^m)^n} \ & \\\\\boxed{\bf a^m * b^m = (a*b)^m}\)
9x²y⁶ = 3²* x² * y³*² = 3² * x² * (y³)² = (3xy³)²
25x⁴y⁸ = 5² * x²*² * y⁴*² = 5² * (x²)² * (y⁴)² = (5x²y⁴)²
Now use the identity: a² - b² = (a +b) (a -b)
Here, a = 3xy³ & b = 5x²y⁴
9x²y⁶ - 25x⁴y⁸ = 3²x²(y³)² - 5²(x²)² (y⁴)²
= (3xy³)² - (5x²y⁴)²
= (3xy³ + 5x²y⁴) (3xy³ - 5x²y⁴)
Help please
Use the following figure to find the answer
the price stock A at 9 am was $13.92. since then the price has been increasing at the rate of $0.11 each hour. At noon the price of Stock B was 14.67. It begins to decrease at the rate of $0.14 each hour. if the two rates continue , in how many hours will the prices of the two stocks be the same
The number of hours when the two stocks would be the same is 1.68 hours.
In how many hours would the two stocks be the same?The first step is to determine the price of stock A at noon.
Price of stock A at noon = price at 9am + (rate of increase per hour x time difference)
Time difference = 12 - 9am = 3 hours
= $13.92 + (0.11 x 3)
= $13.92 + 0.33
= $14.25
Value of stock A t hours after noon = $14.25 + (0.11 x t)
= $14.25 + 0.11t
The equation that can be used to determine the price of stock B at time t is:
Price of stock B at time t = beginning price - (rate of decline x time)
= $14.67 - (0.14 x t)
= $14.67 - 0.14t
When the two stocks are the same, the two equations would be equal to each other:
$14.25 + 0.11t = $14.67 - 0.14t
solve for t:
0.11t + 0.14t = $14.67 - $14.25
0.25t = 0.42
t = 0.42 / 0.25
t = 1.68 hours
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The sum of two numbers is 22. Three times one number increased by five is the same as twice the other number decreased by four. What is the LARGER of the two numbers?
Answer: 15
Step-by-step explanation:
To solve this problem, we first need to translate the given information into a system of equations. Let's call the first number x and the second number y. Since the sum of the two numbers is 22, we know that x + y = 22.
The second statement says that three times one number increased by five is the same as twice the other number decreased by four. We can translate this into an equation by substituting x and y for the two numbers and using the given information:
3x + 5 = 2y - 4
Now that we have a system of equations, we can solve for x and y. First, we'll solve for x by adding four to both sides of the second equation:
3x + 9 = 2y
Then, we can divide both sides by three to get the value of $x$:
x = {2y - 9} / {3}
Next, we can substitute this expression for x into the first equation to solve for y:
y + {2y - 9} / {3} = 22
We can simplify this equation by multiplying both sides by three:
3y + 2y - 9 = 66
Combining like terms on the left side, we get:
5y - 9 = 66
Then, we can add nine to both sides to solve for y:
5y = 75
Finally, we can divide both sides by five to find the value of y:
y = 15
Now that we know the value of $y$, we can substitute it back into the expression for $x$ to find the value of $x$:
x = \frac{2 \cdot 15 - 9}{3} = \frac{27}{3} = 9
Since we want the larger of the two numbers, the answer is 15
An IQ test is designed so that the mean is 100 and the standard deviation is 15 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of the residents of a state if you want to be 95% confident that the sample mean is within 4 IQ points of the true mean.
What is the required sample size?
Answer:
55
Step-by-step explanation:
\(\displaystyle MOE = z\biggr(\frac{\sigma}{\sqrt{n}}\biggr)\\\\4=1.96\biggr(\frac{15}{\sqrt{n}}\biggr)\\\\4=\frac{29.4}{\sqrt{n}}\\\\\sqrt{n}=\frac{29.4}{4}\\\\\sqrt{n}=7.35\\\\n=54.0225\\\\n\approx55\uparrow\)
Make sure to always round up the required sample size to the nearest integer!
5 2/5 is ___ 3 1/2, is it greater than or less than
Answer:
5 2/5 > 3 1/2. 5 2/5 is greater than 3 1/2
Step-by-step explanation:
Answer:
I believe that 5 2/5 is greater than 3 1/2
Can some please tell me what this is?
Step-by-step explanation:
This is mean domain is all real numbers
please help Convert 4
1
4
cups to pints.
There are 2 pints in 1 quart, and 4 cups is equal to 1 quart, so we can convert 4 cups to pints using the following steps:
1 quart = 2 pints
1 cup = 1/4 quart
4 cups = 4 x (1/4) quart = 1 quart
Therefore, 4 cups is equal to 2 pints.
\(\begin{align}\huge\colorbox{black}{\textcolor{yellow}{I hope this helps !}}\end{align}\)
\(\begin{align}\colorbox{purple}{\textcolor{lime}{Please mark as brillinest !}}\end{align}\)
\(\textcolor{cyan}{\small\textit{If you have any further questions, feel free to ask!}}\)
I just need answers. No need longer to explain.Solve a
We need to find the period of the sinusoidal function in this case we have the next form
\(y=A\sin \frac{2\pi}{T}(x+a)+b\)First, we need to find the amplitude in this case
\(A=\frac{5+1}{2}=\frac{6}{2}=3\)The amplitude is 3
Then we need to find the period
\(T=\frac{2\pi}{3}\)and the the displacement b is 2
Then for a we have
\(a=\frac{5}{12}\pi\)Therefore we have
\(y=3\sin 3(x-\frac{5\pi}{12})+2\)ANSWER
\(y=3\sin 3(x-\frac{5\pi}{12})+2\)how many radians are in 1800 degrees
Answer:
31,416 rad
Step-by-step explanation:
Radians = Degrees × π/180°
1800° × π/180 = 31,416 rad
Question 3(Multiple Choice Worth 2 points) (01.01 MC) What is seven hundred thousand one hundred eighty-two and nine thousandths written in expanded form 700,000+100 + 80 +2 +0.009 700,000+ 10,000+8,000 + 200 +0.9 7,000,000+ 100,000+ 9,000 + 80 +2 7,000,000+ 100,000+80,000 +2 +0.09
The number in an expanded form is 700,000 + 182 + 0.009
How to write the number in an expanded form?The number is given as:
seven hundred thousand one hundred eighty-two and nine thousandths
Next, we split the numbers:
seven hundred thousand = 700,000
one hundred eighty-two = 182
and nine thousandths = 0.009
Next, we add the numbers
700,000 + 182 + 0.009
Hence, the number in an expanded form is 700,000 + 182 + 0.009
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Study these equations:
f(x) = 2x – 4
g(x) = 3x + 1
What is h(x) = f(x)g(x)?
h(x) = 6x2 – 10x – 4
h(x) = 6x2 – 12x – 4
h(x) = 6x2 + 2x – 4
h(x) = 6x2 + 14x + 4
Answer:
6x2-10x-4
Step-by-step explanation:
hx=(2x-4)(3x+1)
hx=2x(3x+1)-4(3x+1)
hx=6x2+2x-12x-4
hx=6x2-10x-4