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Vinil7 [7]
3 years ago
14

The height of a soccer ball thrown of a hill can be modeled by the equation h = -16t^2 -8t +120.

Mathematics
1 answer:
inessss [21]3 years ago
4 0

Answer:

120 feet

Step-by-step explanation:

You have to find the y-intercept to calculate the initial hight, this can be done by substituting o in for t

h(0)= -16(0)^2-8(0)+120

=120ft

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A gym teacher orders 42 tennis balls. Each package contains 3 tennis
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Answer:

B

Step-by-step explanation:

3 balls in each package and you multiply that by the number of packages to get the total amount of tennis balls

3 0
3 years ago
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A florist was looking at her flower order. The ratio of roses to sunflowers was 4 to 9. When she was done, she realized there we
IRINA_888 [86]

Answer:

52 roses and 117 sunflowers

Step-by-step explanation:

Since the ratio of roses to sunflowers is 4:9, we can represent how many there are of each as 4x and 9x, respectively. We know that there are 65 more sunflowers than roses, so we can set up the following equation to solve for x:

4x+65=9x

Solving for x, we get:

4x+65=9x

4x+65-4x=9x-4x (Subtract 4x from both sides of the equation to isolate x)

65=5x (Simplify)

5x=65 (Symmetric Property of Equality)

\frac{5x}{5}=\frac{65}{5} (Divide both sides of the equation by 5 to get rid of x's coefficient)

x=13 (Simplify)

Therefore, since x=13, we know that there are 4x=4*13=52 roses and 9x=9*13=117 sunflowers. Hope this helps!

4 0
3 years ago
The selling price of a​ refrigerator, is ​$ 796.40 . If the markup is 10 % of the​ dealer's cost, what is the​ dealer's cost of
8_murik_8 [283]

The final price (what it is selling for) is $796.40

The markup is 10% of the original price (the dealer's cost) , meaning that it is 10% more.

We need to find the original price.

We write this as an equation

The original price *110% = final price

This is because the original price is itself (100%) added with 10%

Plug in the known final price

Original Price * 110% = 796.40

Convert 110% to a decimal because the other numbers- such as the final price are also decimal numbers.

Convert 110% to a decimal by moving the decimal point up 2 spaces ( basically dividing it by 100)

110% = 1.1

So it is now

Original price *1.1 = 796.40

Divide both sides by 1.1 to isolate our unknown, the original price

Original price = $724

5 0
4 years ago
Joey has 30 model airplanes to paint. He has painted 18 models so far.
solniwko [45]
60%... the rest of this is irrelevant it makes you write 20 characters
8 0
3 years ago
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7<br> Solve the system of equations by<br> graphing.<br> y = 2x – 5<br> 2y - 4x = 4
STatiana [176]

Answer:

No solution

Step-by-step explanation:

the two lines are parallel on the graph, they never intersect

4 0
3 years ago
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