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3 years ago

40 POINTS AND BRAINLIEST

Mathematics

1 answer:

Nataliya [291]3 years ago

3 0

Answer:

-110

Step-by-step explanation:

Going from x=1 to 2, y decreases by 3 from 7 to 4

Going from x =2 to 3, y decreases by 3 from 4 to 1

We subtract 3 each time x increases by 1

The formula for an arithmetic sequence is

an = a1 + d(n-1)

where a1 is the first term a1 =7

d is the common difference or what we add (which is in this case is -3)

n is the term number we are looking for n= 40

a40 = 7 -3(40-1)

a40 = 7 -3(39)

a40 = 7 -117

a40 = -110

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zzz [600]

Answer:

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Step-by-step explanation:

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3 years ago

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Linda is planning to build a rectangular deck that is 12 feet longer than it is wide. Find its width if its area is 589 square f

BaLLatris [955]

Let the width be x, then the length is x + 12.
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4 years ago

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3 years ago

5. Find the surface area of the cone. Round to<br> the nearest hundredth.<br> 2 ft<br> 6 ft

den301095 [7]

Answer:

$52.3m^2$

Step-by-step explanation:

Use these formulas

$A=\pi rl+\pi r^2\\l=\sqrt{r^2+h^2}$

Now solve

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4 years ago