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2 years ago

Simplify the expression -2 (x + 4 + 5y).

Mathematics

1 answer:

dezoksy [38]2 years ago

5 0

Answer:

-2x-10y-8

Step-by-step explanation:

Rearange terms

-2(x+4+5y)

-2(x+5y+4)

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4=y-4 solve for the variable

sdas [7]

4 = y - 4
You need to add 4 on each side and you will get 8 which means that y is equal to 8.

4 = y - 4
+4 +4
8=y

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2 years ago

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Solve the value X ASAP!!

anzhelika [568]

The answer is B I think

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2 years ago

Plz hurry!!!! thank you!!!!

RoseWind [281]

Answer:

$m\angle KLM=53.13^o$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the measure of angle KOM

In the triangle KOM

we have

$KO=MO=r=5\ units$

$KM=8\ units$

Applying the law of cosines

$8^2=5^2+5^2-2(5)(5)cos(KOM)$

$64=50-50cos(KOM)$

$50cos(KOM)=50-64$

$50cos(KOM)=-14$

$cos(KOM)=-14/50$

$m\angle KOM=cos^{-1}(-14/50)$

$m\angle KOM=106.26^o$

step 2

Find the measure of the arc KM

we know that

$arc\ KM=m\angle KOM$ ----> by central angle

we have

$m\angle KOM=106.26^o$

$arc\ KM=106.26^o$

step 3

Find the measure of angle KLM

we know that

The inscribed angle is half that of the arc comprising

$m\angle KLM=\frac{1}{2}[arc\ KM]$

we have

$arc\ KM=106.26^o$

substitute

$m\angle KLM=\frac{1}{2}[106.26^o]$

$m\angle KLM=53.13^o$

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3 years ago

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3 years ago

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If the federal reserve sells $40,000 in treasury bonds to a bank with 5% interest the immediate effect on the money supply is an decrease of $40,000.

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