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valina [46]
3 years ago
8

I need help on this please?

Mathematics
2 answers:
aliina [53]3 years ago
8 0
The right answer is C
ivanzaharov [21]3 years ago
7 0
C=(5/9)*(40-32) = (5/9)*8 = 40/9 = 4 4/9
So the right answer is C.
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Which expression equals a number that is NOT a rational number?
Leviafan [203]

Answer:

The correct answer would be 2π x 2²/5

Step-by-step explanation:

First, calculate the product, and evaluate the power which would be 2³π/5 and the solution is in an alternate form, therefore making it rational. :)

3 0
3 years ago
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the perimeter of a rectangle is 48 in. if the length is twice the width, what is the length of the rectangle?
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16. hope that helps. :)

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The area of a circular oil slick on the surface of the sea is increasing at a rate of [150m^2/s] how fast is the radius changing
Akimi4 [234]

Answer with Step-by-step explanation:

We are given that

\frac{dA}{dt}=150m^2/s

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We have to find rate of change of radius.

We know that

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Differentiate w.r.t time

\frac{dA}{dt}=2\pi r\frac{dr}{dt}

Substitute the values then we get

150=2\pi (25)\frac{dr}{dt}

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\frac{dr}{dt}=\frac{3}{\pi} m/s

b.A=1000m^2

Substitute the values then we get

1000=\pi r^2

\pi=3.14

r^2=\frac{1000}{3.14}

r=\sqrt{\frac{1000}{3.14}}=17.8m

\frac{dA}{dr}=2\pi r\frac{dr}{dt}

Substitute the values then we get

150=2\pi(17.8)\frac{dr}{dt}

\frac{dr}{dt}=\frac{150}{2\pi(17.8)}=\frac{150}{35.6\pi}m/s

\frac{dr}{dt}=\frac{75}{17.8\pi}m/s

4 0
3 years ago
I NEED HELP ASAPPPP<br> In square YOLA , RL=5x+28 and RO=8x-11 find the measure of line segment RY
tresset_1 [31]

Answer:

RL=5x+28 and

RO=8X-11

diagonal of square bisect equally the side

:.5x+28=8x-11

11+28=8x-5x

39=3x

x=39/3=13

RY=RL=5x+28=5×13+28=93If the answer is 93, move to S

4 0
2 years ago
The product of (-3xy?)(5x²y3) is
egoroff_w [7]

Answer:

-3xy

Step-by-step explanation:

7 0
3 years ago
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