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3 years ago

Answer the questions pls

Mathematics

2 answers:

Lapatulllka [165]3 years ago

7 0

Here is the solutions for 3-11

liraira [26]3 years ago

3 0

Here is the solution for 3--11

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Derek wants to determine the height of the top of the backboard on the basketball goal at the playground. He places a standard 1

s344n2d4d5 [400]

Answer:

10.2 feet.

Step-by-step explanation:

We have been given that Derek places a standard 12-inch ruler next to the goal post and measures the shadow of the ruler and the backboard. If the ruler has a shadow of 10 inches. We are asked t find the height of the backboard, if the backboard has a shadow of 8.5 feet.

We will use proportions to solve our given problem as ratio between sides ruler will be equal to ratio of sides of background.

$\frac{\text{Actual height of ruler}}{\text{Shadow of ruler}}=\frac{\text{Actual height of backboard}}{\text{Shadow of backboard}}$

$\frac{12}{10}=\frac{\text{Actual height of backboard}}{8.5}$

$\frac{12}{10}*8.5=\frac{\text{Actual height of backboard}}{8.5}*8.5$

$1.2*8.5=\text{Actual height of backboard}$

$10.2=\text{Actual height of backboard}$

Therefore, the actual height of the back-board is 10.2 feet.

4 0

4 years ago

Please help me lol a lil confused

alex41 [277]

$\leadsto f( \rm x) = - (x - 3)(x - 5)$

$\\ \\$

$\leadsto f( \rm x) = - ( {x}^{2} - 5x - 3x + 15) \\$

$\\ \\$

$\leadsto f( \rm x) = - ( {x}^{2} - 8x + 15) \\$

$\\ \\$

$\leadsto f( \rm x) = - {x}^{2} + 8x - 15 \\$

3 0

3 years ago

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2 3/4 −(−1 1/2 )+(− 5/6 )−(− 3/8 )−(+4 2/3 )

belka [17]

Answer:

exact form: -7/8

decimal form: -0.875

Step-by-step explanation:

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3 years ago

5 people working for 6 hours per day they complete they task task in 16 days. How many days would it take 8 people if they worki

worty [1.4K]

Answer:

Can complete a work in 12 days working 8 hours a day Q can complete the same work in 8 days working 10 hours a day if both p and q work together working 8 hours a day in how many days?

Step-by-step explanation:

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3 years ago

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What happens to a horizontal line if you rotate it 90°?

lina2011 [118]

Answer:

it turns into a vertical line

Step-by-step explanation:

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3 years ago

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