5-4+7x+1 use the drop down menu

Mathematics

2 answers:

In-s [12.5K]3 years ago

7 0

Answer: 2+7x

Step-by-step explanation:

First you have to do PEMDAS. Then you get this answer.

Law Incorporation [45]3 years ago

4 0

2 + 7x

you need to combine the like terms (numbers without variables) and then add the 7x.

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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

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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.

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