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3 years ago

12

A cyclist rides her bike at a rate of 20 kilometers per hour. What is this rate in miles per hour? How many miles will the cycli

st travel in 4 hours? In your computations, assume that 1 mile is equal to 1.6 kilometers. Do not round your answer

1 answer:

ladessa [460]3 years ago

3 0

It’s 12.5 miles per hour and the cyclist will travel 50 miles in 4 hours.

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For what value of r is the parallelogram a rhombus

Gre4nikov [31]

Answer:

9

Step-by-step explanation:

7r+18=r²

r²-7r-18=0

factorizing

r²+2r-9r-18=0

r(r+2)-9(r+2=0

(r-9)(r+2)=0

r-9=0

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check

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3 years ago

Find the modulus of the complex number 6-2i

Papessa [141]

Answer:

The modulus of the complex number 6-2i is:

$|z|\:=2\sqrt{10}$

Step-by-step explanation:

Given the number

$6-2i$

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The modulus or absolute value of z is:

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Therefore, the modulus of $6-2i$ will be:

$z=6-2i$

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$|z|\:=\sqrt{6^2+\left(-2\right)^2}$

$=\sqrt{6^2+2^2}$

$=\sqrt{36+4}$

$=\sqrt{40}$

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$|z|\:=2\sqrt{10}$

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2 years ago

Find the value of given expression<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B31%20%5Ctimes%2031%7D%20" id="TexFormul

RideAnS [48]

Answer:

31 is the answers for the question

Step-by-step explanation:

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Alexus [3.1K]

The area of a circle is Pi * R^2 (or R * R).
Since we have our radius, R, we can solve.
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4.5 x 4.5 = 20.25.
Our area is now 20.25Pi.
Your answer is C.) 20.25Pi.
I hope this helps!

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3 years ago

I just don’t feel like doing the work.... wanna help?

nata0808 [166]

38% GOOD LUCK ya ya sus

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