3 years ago

Solve for x. 39 = 3х

Mathematics

1 answer:

devlian [24]3 years ago

5 0

Hopes this helps:

Answer: x = 13

Please mark as brainlist if it’s right.

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Find the area and the circumference of the circle with the radius 6yd.

fgiga [73]

Answer:

Step-by-step explanation:

The formula of an area of a circle:

$A=\pi r^2$

The formula of a circumference of a circle:

$C=2\pi r$

<em>r</em><em> - radius</em>

<em />

We have <em>r = 6yd</em>.

Substitute:

$A=\pi(6^2)=36\pi\ yd^2$

$C=2\pi(6)=12\pi\ yd$

If you want round the answers, then use <em>π ≈ 3.14</em>

$A\approx(36)(3.14)=113.04\ yd^2$

$C\approx(12)(3.14)=37.68\ yd$

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3 years ago

Kevin had six nickels and 4 dimes in his pocket. If he took out one coin and then a second coin without replacing the first coin

Umnica [9.8K]

Alright so A is 6/10 * 5/9 = 1/3
B is 4/10 * 7/9 = 2/15
C is 6/10 * 4/9 = 4/15

I hope this helps

4 0

3 years ago

Choose the four expressions that are equivalent to 3^-4 ?

Ivan

3^(-4) means "one over 3^4"

1/(3^4)

That's equal to

1/81

and

(1/3)^4

This is also equal to 3^2/3^6.

So four of those are correct.

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2 years ago

231 students went on a field trip 9 buses were filled and 15 students traveled in cars how many students were in each bus

mote1985 [20]

$231 - 15 = 216 \\ 216 = 9x \\ x = 24$

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3 years ago

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Find the 15th term of the arithmetic sequence 13,8,3,-2

otez555 [7]

Answer:

Step-by-step explanation:

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3 years ago