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pentagon [3]
3 years ago
7

Need help will give 15 points

Mathematics
1 answer:
Fantom [35]3 years ago
5 0

Answer:

y = -2/3x + 6

Step-by-step explanation:

To find the slope, find how much y changes in proportion to x. Here, when x changes by 1, y changes by -2/3. So, the number before x is -2/3.

To find the y-intercept, we need to find what y will be when x is 0. Since we know that when x is 1, y is 16/3, and when x decreases by 1, y increases by 2/3. So, when x is 0, y is 16/3 + 2/3, which is 18/3, or 6.

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A square has a side of 6.25 feet. What is the area in square feet? Round to the correct significant digits.
dem82 [27]
The answer for this question, to the correct significant digits, would be 39 feet squared. This can be worked out in the following way: S=a*a ft^2S=6.25*6.25S=39.0625?39.1 9and then round this up to find the answer of 39 square feet)
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The cones below are similar, although not drawn to scale.
Dmitry [639]
9 ft
Set up a ratio...6/18=x/27...reduce to 1/3=x/27...cross multiply and solve for x.
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A Gardner is planting two types of trees
Nina [5.8K]

It will take 6 years for the trees to have same height.

Step-by-step explanation:

Type A tree;

Initial height = 9 feet

We will convert feet into inches because growth is in inches.

1 feet = 12 inches

9 feet = 12*9 = 108 inches

Growth rate = 6 inches per year

Let,

x be the number of years.

A(x) = 108 + 6x

Type B;

Initial height = 4 feet = 4*12 = 48 inches

Growth rate = 16 inches per year

B(x) = 48 + 16x

The height will be same, when functions are equal

A(x) = B(x)

108+6x=48+16x\\108-48=16x-6x\\60=10x\\10x=60

Dividing both sides by 6

\frac{10x}{10}=\frac{60}{10}\\x=6

It will take 6 years for the trees to have same height.

Keywords: function, division

Learn more about division at:

  • brainly.com/question/3614284
  • brainly.com/question/3799248

#LearnwithBrainly

4 0
3 years ago
PLZ HELP WILL GIVE BRAINLIEST!!!!!!
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She should use a computer to select 30 students at random then ask which ones play chess. The other options could produce more skewed results.
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A) x2 when x = 5<br> b) y2 when y = -2<br> c) z2 when z = 0.5
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Answer:

A) 25

B) 4

C) 0.25

Thank you and please rate me as brainliest as it will help me to level up

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3 years ago
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