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3 years ago

First to answer gets brainliest!

Mathematics

1 answer:

TEA [102]3 years ago

7 0

Answer:

it is the first one

Step-by-step explanation:

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The sides of a square field are 28 meters. A sprinkler in the center of the field sprays a circular area with a diameter that co

Ulleksa [173]

Answer:

168.24784 m²

Step-by-step explanation:

Area of the square:

28 x 28=784 sq. m.

Area of the circle:

π(r²)=π(14)²=196π

=615.75216

Area not covered by the sprinkler:

784-615.75216=168.24784 m²

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3 years ago

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The Tire on franks bike moves 75 inches in one rotation. How many rotations will the tire have made after frank rides 50 feet

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You have to convert 50 feet to inches, so you take 50 times 12 and get 600. Then, you take 600/75 to get the number of rotations. Your final answer shold be 8 rotations.

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3 years ago

The angle is 1/5 of the circle. what is the measure of the angle?

LenKa [72]

360 degrees in a circle divided by 5 is 72

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3 years ago

Math help questions <br>

Evgen [1.6K]

After 1 year, the initial investment increases by 7%, i.e. multiplied by 1.07. So after 1 year the investment has a value of $800 × 1.07 = $856.

After another year, that amount increases again by 7% to $856 × 1.07 = $915.92.

And so on. After t years, the investment would have a value of $\$800 \times 1.07^t$ .

We want the find the number of years n such that

$\$856 \times 1.07^n = \$1400$

Solve for n :

$856 \times 1.07 ^n = 1400$

$1.07^n = \dfrac74$

$\log_{1.07}\left(1.07^n\right) = \log_{1.07}\left(\dfrac74\right)$

$n \log_{1.07}(1.07) = \log_{1.07} \left(\dfrac74\right)$

$n = \log_{1.07} \left(\dfrac74\right) = \dfrac{\ln\left(\frac74\right)}{\ln(1.04)} \approx \boxed{8.3}$

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2 years ago

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I am making mashed potatoes with 1.25 pounds of mashed potatoes, .14 pounds of olive oil, and .33 pounds of almond milk. How muc

Klio2033 [76]

Answer:

Step-by-step explanation:

1.72

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3 years ago