2 years ago

I need help on 5 a and b

Mathematics

1 answer:

coldgirl [10]2 years ago

5 0

A: 63.75
B: 95.625 dollars

You might be interested in

A small airplane takes off from point A and continues to climb upward in a straight line, as shown in the diagram. What is the p

harkovskaia [24]

<h3>Answer: Choice D. 12,600 feet</h3>

============================================================

Explanation:

We have two similar triangles here, so we can set up the proportion below to solve for x

5200/(5200+6500) = 5600/x

5200/11700 = 5600/x

5200x = 11700*5600 .... cross multiply

5200x = 65,520,000

x = (65,520,000)/(5200)

x = 12,600 which shows why the answer is choice D

side note: 12,600 ft = 2.386 miles approximately

6 0

2 years ago

ABCD is rectangle on a coordinate grid with side AB parallel to side CD. Side BC is perpendicular to AB. The slip of AB is 3/4.

dybincka [34]

The slope of BC is $\frac{-4}{3}$

Step-by-step explanation:

Let us revise some notes about slopes of lines

If two lines are parallel, then their slopes are equal
If to lines are perpendicular, then the product of their slopes is -1, that means if the slope of one is m, then the slope of the other is $\frac{-1}{m}$

∵ ABCD is a rectangle

∵ AB // CD

∴ The slope of AB = the slope of CD

∵ BC ⊥ AB

∴ The slope of BC × the slope of AB = -1

∵ The slope of AB = $\frac{3}{4}$

- To find the slope of BC reciprocal the slope of AB and reverse its sign

∴ The slope of BC = $\frac{-4}{3}$

The slope of BC is $\frac{-4}{3}$

Learn more:

You can learn more about the slope in brainly.com/question/9801816

#LearnwithBrainly

6 0

3 years ago

Emily claims that y = 2x^2 —3 is a linear function.

Veseljchak [2.6K]

The anser is that what i think

5 0

2 years ago

P divided by 1 2/3 = 2 1/5

Vlada [557]

99888777777777777777777

4 0

3 years ago

Read 2 more answers

The function c=2.50(n-2)+1.50 represents the cost c in dollars of printing n invitations. Which of the following is not true?

Yuri [45]

Please put the selections. I can't tell you what isn't true if you don't.

6 0

3 years ago