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4 years ago

What are the variable terms in the expression?

Mathematics

2 answers:

AfilCa [17]4 years ago

5 0

Just took the test. Here is the answer

Ainat [17]4 years ago

4 0

I think its 2c and 9d. I am not completely sure but i hope this helps.

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Find the measure of Q, the smallest angle in the triangle whose sides have lengths 4-5, and 6. Round the measure to the nearest

kakasveta [241]

Given:

Given that PQR is a triangle.

The measures of the sides of the triangle are 4,5 and 6.

We need to determine the measure of ∠Q.

Measure of ∠Q:

The measure of ∠Q can be determined using the law of cosines formula.

Thus, we have;

$\cos (Q)=\frac{p^{2}+r^{2}-q^{2}}{2 p r}$

Substituting p = 6, q = 4, r = 5, we get;

$\cos (Q)=\frac{6^{2}+5^{2}-4^{2}}{2 (6)(5)}$

Simplifying, we get;

$\cos (Q)=\frac{36+25-16}{2 (30)}$

$\cos (Q)=\frac{45}{60}$

Dividing, we get;

$\cos (Q)=0.75$

$Q=cos^{-1}(0.75)$

$Q=41^{\circ}$

Thus, the measure of ∠Q is 41°

Hence, Option b is the correct answer.

4 0

3 years ago

How to make 5/6 into a percent

vekshin1

"Percent" or "%" means "out of 100" or "per 100", Therefore x% can be written as
x
100
.
Therefore we can write an equation as and solve for
x
:
x
100
=
5
6
100
×
x
100
=
100
×
5
6
100
×
x
100
=
500
6
x
=
83
.
¯
3
5
6
=
83
.
¯
3
%
or
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1
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5 0

3 years ago

Evaluate 13- (-9) need helpp

Viktor [21]

Answer:

The answer is 22.

Explanation:

Multiply -1 by -9.

$13 + 9$

Add 13 + 9.

$22$

Therefor, the answer is 22.

6 0

3 years ago

Solve by using substitution. =3−8 =−4

garik1379 [7]

Answer:

I'm going to assume that you meant y=3x-8 and y=-4

This means that you would substitute -4 into the spot of y which gives you -4=3x-8. Once solved you would receive x=4/3.

Hope I helped have a nice day :)

3 0

3 years ago

What is the answer to life?

kolezko [41]

Answer:

you

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers