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My name is Ann [436]
3 years ago
13

Define equation. Give an example of two equivalent equations.

Mathematics
1 answer:
mario62 [17]3 years ago
8 0
A statement that has mathematical expressions that are equal.
Examples:
2+1=3
11x4=44
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Evaluate each expression when y = 5.<br> a 12+ 4<br> b. 4(+3)
kati45 [8]

Answer:

Step-by-step explanation:

it's ambiguous.

where do we replace the y values in either a or b?

kindly, write down the question well.

5 0
3 years ago
Please Hurryyy
Helga [31]

The measure of angle J is 19.8°, and the correct option is D.

<h3>What is the formula of cosine?</h3>

The law of cosine or cosine rule in trigonometry is a relation between the side and the angles of a triangle. Suppose a triangle with sides a, b, c and with angles cosC.

The following formula is used to find the angle j is;

\rm j^2 = h^2 + i^2 -2hicosC

Triangle HIJ has side lengths h=12, i = 17, j = 7.

Substitute all the values in the formula;

\rm j^2 = h^2 + i^2 -2hicosJ\\\\(7)^2=(12)^2+(17)^2-2 \times 12 \times 17 cosJ\\\\49=144+289-408cosJ\\\\144+289 -49 =408cosJ\\\\384 =408cosJ\\\\cosJ=\dfrac{384}{408}\\\\cosj = 0.94\\\\J =cos^{-1}(0.94)\\\\J=19.8

Hence,  the measure of angle J is 19.8°, and the correct option is D.

Learn more about law cosine here;

brainly.com/question/17289163

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3 0
2 years ago
Kenny has 8 red shirts, 12 blue shirts, and 10 white shirts in his closet. What is the probability that he would get a white shi
antiseptic1488 [7]

Answer:

1/3 or 33.33 %

Step-by-step explanation:

this is because there is 30 shirts and all and 10 white. 10/30 is 1/3, or 33.33%

8 0
3 years ago
Read 2 more answers
Mair of angles is classified in the same category according to the angle measure?<br> h
Norma-Jean [14]
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Answer the following questions:
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4 0
2 years ago
Hal ran 1 2/5 miles on Monday and 3/4 of a mile on Tuesday. How far did he run in total for the two days?
spin [16.1K]

Answer:

2.12 miles

Step-by-step explanation:

5 0
3 years ago
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