3 years ago

Sqrt= Square Root

1 answer:

7 0

The answer to this question is <span>C. The student did not evaluate sqrt 16 and sqrt 25 before estimating sqrt 18.</span> The square roots of 16 and 25 are 4 and 5 respectively. He should have esimated that sqrt(18) is close to 4.2 instead of 17.

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Find the solution of the system of equations.<br>- 3x + 10y = 17<br>3x + 7y = 17

atroni [7]

Answer:

x=1, y=2. (1, 2).

Step-by-step explanation:

-3x+10y=17

3x+7y=17

---------------

17y=34

y=34/17

y=2

3x+7(2)=17

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Question in attachment

sdas [7]

Answer:

a₁ = 6

Step-by-step explanation:

The sum to n terms of a geometric sequence is

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where a₁ is the first term and r the common ratio

Here $S_{8}$ = 1530 and r = 2, thus

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In a circle, an angle measuring 2π radians intercepts an arc of length 16π. Find the radius of the circle in simplest form.

sdas [7]

I believe if i am understanding the question right the radius=4

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3 years ago