Answer:
z and -4z are like terms
Terms: z,8,-4z
like terms: z,-4z
In the third month of a study, a sugar maple tree is 82 inches tall. In the seventh month, the tree is 92 inches tall. Assuming the tree grows at a constant rate every month, what is the rule for the height of the tree during the nth month
The linear equation that gives the height on the x-th month is:
y = 2.5*x + 74.5
Which rule gives the height of the tree for the n-th month?
This will be modeled with a linear equation of the form:
y = a*x + b
Where a is the slope and b is the y-intercept.
Remember that for a line with the points (x₁, y₁) and (x₂, y₂), the slope is given by:
\(a = \frac{y_2 - y_1}{x_2 - x_1}\)
Here we have the two points (3, 82) and (7, 92). Where the first value is the number of months and the second value is the height.
So the slope is:
\(a = \frac{92 - 82}{7 - 3} = 10/4 = 2.5\)
Then the linear equation is:
y = 2.5*x + b
To get the value of b, we use the fact that when x = 3, we have y = 82,
82 = 2.5*3 + b
82 = 7.5 + b
82 - 7.5 = b = 74.5
Then the linear equation is:
y = 2.5*x + 74.5
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This window is designed in the shape of a right trapezoid.
If the acute angle measures 52", what is the measure of the obtuse angle?
The measure of the obtuse angle is 128°.
What is a right trapezoid?A right trapezoid is a trapezoid having two right angles.
Given that, the shape of the window is a right trapezoid,
In a trapezoid, the two adjacent angles are consecutive, so are supplementary.
Let the obtuse angle be x,
x + 52° = 180°
x = 128°
Hence, The measure of the obtuse angle is 128°.
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The ponderal indexis a measure of the "leanness" of a person. A person who is h inches tall and weighs w pounds has a ponderal index I given by I = a. Compule the ponderal index for a person who is 76 inches tall and weighs 192 pounds: Round to the nearest hundredth. b. What is a man's weight if he is 77 inches tall and has a ponderal index of 11.56 ? Round to the nearest whole number. a. The ponderal index for a person who is 76 inches tall and weighs 192 pounds is (Round to the nearest hundredth as needed.)
The ponderal index cannot be computed without the value of the constant "a" in the formula. Therefore, the ponderal index for a person who is 76 inches tall and weighs 192 pounds cannot be determined.
To compute the ponderal index, we need the formula and the value of the constant "a."
a) The formula for the ponderal index is given as I = a, where I represents the ponderal index and a is a constant. However, the value of the constant "a" is missing in the provided information. Without knowing the value of "a," we cannot compute the ponderal index for a person who is 76 inches tall and weighs 192 pounds.
b) Similarly, without knowing the value of the constant "a," we cannot determine the weight of a man who is 77 inches tall and has a ponderal index of 11.56.
To compute the ponderal index or determine the weight, we need the specific value of the constant "a" in the given formula.
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Every dimension of a triangular pyramid is multiplied by 10 to produce a new figure that is geometrically similar. What effect does this have on the surface area of the pyramid?
A.
The surface area of the pyramid is multiplied by 10.
B.
The surface area of the pyramid is multiplied by 50.
C.
The surface area of the pyramid is multiplied by 100.
D.
The surface area of the pyramid is multiplied by 1,000.
E.
The effect on the surface area cannot be determined.
Answer:
C
Step-by-step explanation:
Since the question is asking for surface area and the dimensions are multiplied by 10, the surface area is multiplied by 10^2, or 100. (For area it would be 10^3, or 1000)
a. A potato is launched vertically upward with an initial velocity of 34ft / s from a potato gun at the top of a building that is 42 feet tall. The distance, in feet, that the potato travels after t seconds is given by s(t)=−16t2+34t+42 . Determine how long the potato is in the air. (Enter an exact answer.)
b.The cost function, in dollars, of a company that manufactures coffee makers is given by C(x)=155+66x+x236, where x is the number of coffee makers manufactured. Find the actual cost of manufacturing 24 coffee makers.
The potato is in the air for approx. 1.0625 seconds.
The actual cost of manufacturing 24 coffee makers is $1,755.67.
a. To find the time that a potato is in the air, use the quadratic equation formula where a=-16,
b=34, and
c=42. `
t = (-b ± sqrt(b²-4ac))/2a`.
Let's start by finding the discriminant first. `b²-4ac = (34)²-4(-16)(42)
= 1156`.
Substitute the values of a, b, and c into the quadratic formula.
t = (-34 ± sqrt(1156))/-32
= (-34 ± 34)/-32`.
There are two solutions to the quadratic equation. Thus, we need to check if there are any negative values for time.
t = (-34 + 34)/-32
= 0.
t = (-34 - 34)/-32
= 1.0625`.
Therefore, the potato is in the air for 1.0625 seconds.
b. To find the actual cost of manufacturing 24 coffee makers, substitute x=24 into the cost function
C(x) = 155 + 66x + x²/36`.
C(24) = 155 + 66(24) + 24²/36
= 155 + 1584 + 16.67`. `
C(24) = 1755.67`.
Therefore, the actual cost of manufacturing 24 coffee makers is $1,755.67.
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the provider has prescribed ibuprofen 800 mg po tid. the unit dose is 400 mg tablets. how many tablets will be administered to the client? enter numeral only.
The provider has prescribed ibuprofen 800 mg po tid. the unit dose is 400 mg tablets.6 tablets will be administered to the client.
To calculate the number of tablets that will be administered to the client when the provider has prescribed ibuprofen 800 mg po tid and the unit dose is 400 mg tablets, the following steps can be used:
Step 1: Determine the total daily dose
To determine the total daily dose, the 800 mg dose prescribed three times daily can be added up.
800 mg + 800 mg + 800 mg = 2400 mg/day
Step 2: Calculate the number of tablets needed to achieve the daily dose
The total daily dose can be divided by the strength of the tablet to determine the number of tablets needed to achieve the daily dose.
2400 mg/day ÷ 400 mg/tablet = 6 tablets/day
Therefore, 6 tablets will be administered to the client.
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Which proportion would you use to solve the following problem?
A map has a scale of 1 cm : 5 km. Determine how far apart two cities are if they are 4 cm apart on the map.
Answer:
A) 1/5 = 4/xStep-by-step explanation:
The scale is:
1 cm : 5 kmGiven:
1 cm ⇒ 5 km 4 cm ⇒ x kmConverted to ratio it is:
1/5 = 4/xCorrect choice is A
Now
\(\\ \sf\longmapsto \dfrac{1}{4}=\dfrac{5}{x}\)
Cross multiply\(\\ \sf\longmapsto \dfrac{1}{5}=\dfrac{4}{x}\)
Option A is correct
Write the equation that models the conditions. Then solve the equation and answer the question. 525 is 75% of what number? The percent equation is Solve the equation, X=
We will solve as follows:
*525 is the 75% of:
\(x=\frac{525\cdot100}{75}\Rightarrow x=700\)So, 525 is 75% of 700.
*The percent equation is:
\(525=x(700)\)*The value of x is:
\(x=0.75\) A bird traveled a horizontal distance of 300 ft, over a distance that
rose 150 ft. What is the angle of elevation that the bird made with the
ground (round to the nearest tenth)?
9514 1404 393
Answer:
26.6°
Step-by-step explanation:
The tangent of the elevation angle is the ratio of rise to run:
tan(angle) = 150 ft/(300 ft) = 1/2
Then the angle is the arctangent of this value:
angle = arctan(1/2) ≈ 26.6°
Can someone please help me ASAP?? It’s due today!! I will give brainliest If It’s correct.
The correct option that indicates how Christa sliced the rectangular pyramid is the second option.
Christa sliced the pyramid perpendicular to its base through two edges.
What is a rectangular pyramid?A rectangular pyramid is a pyramid with a rectangular base and four triangular faces.
The height of the cross section indicates that the location where Christa sliced the shape is lower than the apex of the pyramid.
The trapezoid shape of the cross section of the pyramid indicates that the top and base of the cross section are parallel, indicating that Christa sliced the pyramid parallel to a side of the base of the pyramid, such that it intersects two of the edges of the pyramid
The correct option is therefore the second option;
Christa sliced the pyramid perpendicular to its base through two edges
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Consider a circle of radius 2 centered at the origin. Find parametfizations of this curve under the following assumptions. Clearly state any restriction on the variable of parametrization. (a) A single, complete traversal of the circle in a counter-clockwise direction.x=2cos(t)y=2sin(t)
(b) A single, complete traversal of the circle in a clockwise direction.=2sin(t)y=2cos(t)
(c) A clockwise traversal of the front half of the circle (i.e.x>0)
The circle can be traversed in a counter-clockwise direction using x=2cos(t) and y=2sin(t) with t=[0,2π], in a clockwise direction using x=2sin(t) and y=2cos(t) with t=[0,2π], and the front half in a clockwise direction using x=2sin(t) and y=2cos(t) with t=[0,π].
For (a) a single, complete traversal of the circle in a counter-clockwise direction, we have the parametrization x=2cos(t) and y=2sin(t). This parametrization will restrict the variable t to a range of t=[0,2π] as t increases, it will travel around the circle in a counter-clockwise direction.
For (b) a single, complete traversal of the circle in a clockwise direction, we have the parametrization x=2sin(t) and y=2cos(t). This parametrization will restrict the variable t to a range of t=[0,2π] as t increases, it will travel around the circle in a clockwise direction.
For (c) a clockwise traversal of the front half of the circle (i.e.x>0), we have the parametrization x=2sin(t) and y=2cos(t). This parametrization will restrict the variable t to a range of t=[0,π] as t increases, it will travel around the front half of the circle in a clockwise direction.
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Part A
MONEY Samir plan to buy a new video game ytem which will cot at leat $450. He earn $6 per hour babyitting and $10 per hour tutoring. Let x be the number of hour babyitting and y be the number of hour tutoring. Part A Select the inequality that repreent the number of hour Samir could work to earn enough to buy the game ytem. Part A
Select the inequality that repreent the number of hour Samir could work to earn enough to buy the game ytem. A) y≥ − 0. 6x 45
B) y ≥ − 123x 75
C) y > 123x − 75
D) y > 6x 10
Answer:
Step-by-step explanation:
The required inequality is y ≥ - 0.6x + 45 which represents the number of hours Samir could work to earn enough to buy the game system. which is the correct answer would be an option (A).
What is inequality?Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.
The video game system will cost at least $450.
He earns $6 per hour babysitting and $10 per hour tutoring.
Let x be the number of hours babysitting and y be the number of hours of tutoring.
According to the given situation, we can write the inequality would be as:
⇒ 6x + 10y ≥ 450
Rearrange the terms of variables in the above inequality,
⇒ 10y ≥ 450 - 6x
Divided by 10 into both sides of the above inequality,
⇒ 10y/10 ≥ 450/10 - 6x/10
⇒ y ≥ 45 - 0.6x or
⇒ y ≥ - 0.6x + 45
Thus, the required inequality is y ≥ - 0.6x + 45 which represents the number of hours Samir could work to earn enough to buy the game system.
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please solve this i want to go to my dads house but i have homework
Answer:
Y=7
Step-by-step explanation:
A surfer with a mass of 50 kg is being pushed forward by a wave with a force of 75 Newtons. What is her acceleration?
Given -
Mass (m) = 50 kgForce (f) = 75 NTo find -
Acceleration.Solution -
Here, we'll put the value of force and mass in the formula F = MA for calculating the value of Acceleration (A).
→ 75 = 50 × A
→ A = 75/50
→ A = 1.5 m/s².
Therefore, the acceleration will be 1.5 m/s².
Isabell will rent a car for a day. The rental company offers two pricing options: Option A and option B. For each pricing option, cost (in dollars) depends on miles driven, as shown below. It’s Isabell drive the rental car 200 miles which option cost more?How much more does it cost than the other option?For what number of miles driven do the two options cost the same?If Isabell drives more than this amount, which option cost more?
From the graph of miles driven and pricing, it can be observed that for 200 miles option A price is $100 and option B price is $70.
So option A cost more than option B.
Determine the difference between $100 and $70 to obtain how much option A cost more than option B.
\(100-70=30\)So option A cost $30 more than option B.
From the graph, it can be observed that lines of option A and option B intersect each other at (50,40). So option A and option B cost same for 50 miles.
1 ton makes 90 cars
there are 280 million cars needed
1 ton = 500,000 gallons of water
figure out how much water is needed for 280 million cars.
What I have so far
500,000*280 million= 1.4*\(10^{14}\)
Do i divide by 90 and am i even doing this correct?
The number of gallons required for 280 million cars is 1,555,556 gallons.
Given that, 1 ton makes 90 cars, there are 280 million cars needed
and 1 ton = 500,000 gallons of water.
What are proportions?Proportion, in general, is referred to as a part, share, or number considered in comparative relation to a whole. The proportion definition says that when two ratios are equivalent, they are in proportion. It is an equation or statement used to depict that two ratios or fractions are equal.
Let the number of gallons of water needed for 280 million cars be x.
Now, 90 : 500,000 :: 280 : x
⇒ 90x=500,000 × 280
⇒ x = 14,00,00,000/90
⇒ x = 1,555,555.555≈1,555,556 gallons
Therefore, the number of gallons required for 280 million cars is 1,555,556 gallons.
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an expoenetial function g models a relationship in which the dependent variable is multiplied by 2.5 for every 1 unit the independent variable x increases. the value of the function 0 is 8
The exponential function that models the relationship is:
g(x) = 8 * (2.5)^x
To model the relationship described, we can write the exponential function as:
g(x) = a * b^x
Given that the dependent variable is multiplied by 2.5 for every 1 unit increase in the independent variable, we have:
2.5 = b^1
Solving for b, we find that b = 2.5.
Now, we can substitute the value of x = 0 into the equation and solve for a:
8 = a * (2.5)^0
8 = a * 1
a = 8
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Brandon take a rectangular piece of fabric and make a diagonal cut from one corner to the oppoite corner. The cut he make i 13 inche long and the width of the fabric i 5 inche. What i the fabric' length?
The length of the fabric which Brandon formed a rectangle, is 11 inches.
To find the length of the fabric, we can use the Pythagorean theorem. The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides.
In this case, the length of the fabric is one of the other two sides, and the diagonal cut is the hypotenuse. So, we can write the equation:
\(L^2 + 5^2 = 13^2\)
where L is the length of the fabric.
Solving for L, we get:
\(L^2 = 144 - 25 = 119, and L =\sqrt{119} = 11.\)
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PLEASE HELP!
Find the value of X in the image Below.
Answer:
x = 30°
Step-by-step explanation:
l₁ // l₂ and t is transversal. So, corresponding angles are congruent.
3x - 10 = 2x + 20
Add 10 to both sides,
3x = 2x + 20 + 10
3x = 2x + 30
Subtract 2x from both sides,
3x - 2x = 30
x = 30°
I need help with math if you don't know the answer get out of the question and don't answer it and give the wrong answer or some link or even say "I don't know" or anything like that it's not fair to me cause it a waste of my points I will report your if you do that :) have a nice day and stay safe
Answer:
Please do not report me if this is wrong but my friend beside me is giving me the answer and she said its 60
Step-by-step explanation:
suppose that 6 6 out of the 17 17 doctors in a small hospital are general practitioners, 7 7 out of the 17 17 are under the age of 50 50 , and 3 3 are both general practitioners and under the age of 50 50 . what is the probability that you are randomly assigned a general practitioner or a doctor under the age of 50 50 ? enter a fraction or round your answer to 4 4 decimal places, if necessary.
The probability that you are randomly assigned a general practitioner or a doctor under the age of 50 is 10/17 or 0.588.
We can find the probability by using the formula for the union of two events:
P(general Practitioner or Under 50) = P(General Practitioner) + P(Under 50) - P(General Practitioner and Under 50)
We know the number of doctors who are general practitioners (6), the number of doctors who are under 50 (7), and the number of doctors who are both (3). So, we can find the probabilities as follows:
P(General Practitioner) = 6/17
P(Under 50) = 7/17
P(General Practitioner and Under 50) = 3/17
Substituting these values into the formula, we get:
P(General Practitioner or Under 50) = 6/17 + 7/17 - 3/17
= 10/17
= 0.588.
So, the probability that you are randomly assigned a doctor under the age of 50 is 0.588.
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How many regions can be found at the left side of the normal distribution curve?
Select one:
a.
4
b.
1
c.
3
d.
2
tnx
Answer: it’s c.3
Hopes this helps. Um... can I please have brainliest
Step-by-step explanation:
Identify Slope and Y intercept for the equation X=4 M=B=
Please help me, what I need help on is in the picture. (Geometry)
Answer:
34°
Step-by-step explanation:
5x+4+5x-1=73
10x+3=73
10x=73-3
10x=70
x=7
m<ABC=5x-1=5(7)-1=35-1=34°
I need help on this !! Please
Answer:
Step-by-step explanation:
Solve for y: 5x-4y=28
Answer:
y = \(\frac{5}{4} x - 7\)
Step-by-step explanation:
Step 1: Add -5x to both sides.
5x − 4y + −5x = 28 + −5x
−4y = −5x + 28
Step 2: Divide both sides by -4.
\(\frac{-4y}{-4} =\frac{-5x +28}{-4}\)
y = \(\frac{5}{4}x -7\)
Answer:
y=- -5/4x-7 go to question 7
Step-by-step explanation:
y=- (-5x+28)
4
then simplify if you need more steps i will show
Sarah has been running a dog-walking business since 2010. She walks dogs twice a day, takes them to the park, and returns them to their homes. Each year, she has increased her fee by the same amount. The table shows what Sarah charged each customer for two given years of her business:
Year Annual Dog-walking Fee
2010 $350
2014 $750
A. What is the rate of change and initial value for Sarah's business? How do you know?
B. Write an equation in slope-intercept form to represent the fees that Sarah charges each year. (10 points)
Sarah's company started out with a $350 value and is currently changing at a rate of $100 annually.
The annual fee is expressed as an equation in slope-intercept form:
y = 100x + 350.
Define the term slope-intercept form?y = mx + b, where m is the line's slope and b is its y-intercept, is the formula for a straight line.
Given details:
Since 2010, Sarah has operated a dog-walking service.She has raised her rate the same amount each year.The table displays the prices that Sarah charged each client during the course of her business's first two years:
Year Annual Dog-walking Fee
2010 $350
2014 $750
A.
Sarah has so increased the cost by $400 over the past four years.
For Sarah's company, its rate of change called slope will be,
m = 750 - 350 / 4
m = 100
Therefore, Sarah is raising the cost by $100 yearly.
Due to the payment she received for the first year, the calculated values of a business is $350.
B. Define x as the period of time that has passed since she began her business in 2010.
Consequently, the annual fee equation can be expressed in slope-intercept form as,
y = mx + c
where y stands for the cost she must pay after x years.
Her company's baseline value is therefore $350, and its rate of change is $100 annually.
The annual fee is expressed as an equation in slope-intercept form.: y = 100x + 350.
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A ship is sailing toward a small island 800 miles away. If
the ship is 2º off course, by how many miles will it miss
the island? Round to the nearest tenth.
*
Answer:
27.94 miles
Step-by-step explanation:
tan 2 degrees = x/800
0.0349(800) = x
x = 27.94 miles
Answer:0.04
Step-by-step explanation:
Help please! I don't understand.
Answer:
Question 13: is Side-Side-Angel
Question 14: laws sines.
Question 15: is 1 (which b.)
there my brother tried his best, have a great day TwT
The possibility of a power outage seems to grow every year because of demand and aging infrastructure. What can/should companies do to mitigate this risk?