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larisa [96]
3 years ago
5

The sum of two numbers is five. If n is used to represent the smaller number, translate "three less than two times the larger nu

mber" into an algebraic expression written in terms of n. Simplify your answer.
Mathematics
1 answer:
mojhsa [17]3 years ago
7 0
I think that the answer is four because it makes much more sense but five is not greater than five or less than five so I don’t know. Try four though sorry if it’s wrong though.
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Veronika [31]

Answer:

101

Step-by-step explanation:

According to the Law of Cosines, for any △ABC with side lengths a, b, and c, a2=b2+c2−2bccosA; b2=a2+c2−2accosB; and c2=a2+b2−2abcosC

.

The Law of Cosines can be used because all three side lentghs are known.

Set up the equation for the Law of Cosines:

a2=b2+c2−2bccosA

Substitute the known values into the Law of Cosines:

312=222+182−2(22)(18)cosA

Square the values and multiply:

961=484+324−792cosA

Add:

961=808−792cosA

Subtract 808

from both sides:

153=−792cosA

Divide both sides by −792

:

153−792=cosA

According to this equation m∠A

is equal to the inverse cosine function of −153792

. Write this:

m∠A=cos−1(−153792)

Calculate the value of the inverse cosine −153792

on a calculator:

m∠A≈101°

Therefore, m∠A≈101°

.

8 0
2 years ago
Oanna earns $10 per hour at her job. Last week, Joanna earned $400.
kotegsom [21]

Answer:

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Step-by-step explanation:

She worked 1 hr for 10 and she got 400

4 0
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MArishka [77]

Answer:

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Step-by-step explanation:

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3 years ago
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