2 years ago

Which properties of equality are used to solve the following (in no particular order)?

Mathematics

1 answer:

guajiro [1.7K]2 years ago

3 0

All except combine like terms. Since you only have 1 variable.

Hope this helps.

r3t40

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Please solve! Simplify and write without parentheses!

Bogdan [553]

18y to the 20th power minus 90y to the fifth power

8 0

3 years ago

How do i get a fraction and as a decimal for 72%full

garik1379 [7]

Move the decimal twice to the right to get a decimal (it should start behind the 2 and end up in front of the 7)
For a fraction just put it over 100 72/100

5 0

2 years ago

. A triangle has side lengths of 8, 7, and 14. To the nearest tenth of a degree find the measure of the angle opposite the side

4vir4ik [10]

Given:

The measure of three sides of a triangle are 8, 7 and 14.

To find:

The measure of the angle opposite the side of length 8.

Solution:

According to the Law of Cosine:

$\cos A=\dfrac{b^2+c^2-a^2}{2bc}$

Let a=8, b=7 and c=14, then by using Law of Cosine, we get

$\cos A=\dfrac{7^2+14^2-8^2}{2(7)(14)}$

$\cos A=\dfrac{49+196-64}{196}$

$\cos A=\dfrac{181}{196}$

Taking cos inverse on both sides.

$A=\cos^{-1}\dfrac{181}{196}$

$A=22.561328$

$A\approx 22.6$

Therefore, the measure of the angle opposite the side of length 8 is 22.6 degrees.

7 0

2 years ago

This figure shows circle O with inscribed ∠XYZ. m∠XYZ=76∘ What is the measure of XYZ?

Cloud [144]

Answer:

152

Step-by-step explanation:

Since the measure of angle XYZ is 76 degrees, we know that the measure of XYZ would be twice the amount of the angle measurement due to the square root theorem. In this case 76 times 2 or 76 plus 76 equals 152 degrees. 152 degrees is your final answer.

6 0

3 years ago

Read 2 more answers

What expression can be used to add 5/12 + 3/8 PLZ TELL ME

Julli [10]

Answer:

19/24

Step-by-step explanation:

5/12 + 3/8

LCM: 24

(5×2 + 3×3)/24

(10 + 9)/24

19/24

5 0

3 years ago