3 years ago

Which equation would help find the measure of

Mathematics

2 answers:

frez [133]3 years ago

6 0

Answer: the top one x+52+78=180

Juliette [100K]3 years ago

5 0

Answer:

x + 52 + 78 = 180

Step-by-step explanation:

By angle sum property of a triangle:

$x + 52 + 78 = 180$

You might be interested in

√(25 - 10 √(3) + 3)<br> (not as a decimal)

nikitadnepr [17]

Answer:

$\huge\boxed{\sqrt{25-10\sqrt3+3}=5-\sqrt3}$

Step-by-step explanation:

$\sqrt{25-10\sqrt3+3}=(*)\\\\25=5^2\\3=(\sqrt3)^2\\10\sqrt3=(2)(5)(\sqrt3)\\\\(*)=\sqrt{5^2-(2)(5)(\sqrt3)+(\sqrt3)^2}\\\\\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\=\sqrt{(5-\sqrt3)^2}\\\\\text{use}\ \sqrt{a^2}=|a|\\\\=|5-\sqrt3|=5-\sqrt3\\\\^{\text{because}\ 5>\sqrt3\to5-\sqrt3>0}$

6 0

2 years ago

Zach has $50 to spend on a sweater. Let c represent the cost of the sweater. He has a coupon for 5% off. The expression 50 -(c -

Norma-Jean [14]

Answer:

B and D

Step-by-step explanation:

8 0

3 years ago

Nancy had 16 chocolate candies in a bag. Her mother put a handful of candies in the bag. When Nancy counts her chocolate candies

Reika [66]

Answer:

she had 16

She got c

16 + c

She now has 32

16 + c = 32

I don't know if that's the exact answer, but basically, 16 needs to be added to c, and it needs to equal 32.

Hope this helps! :)

8 0

3 years ago

Read 2 more answers

What is the sine of A as a fraction?

NARA [144]

Answer:

15/17

Step-by-step explanation:

Sine is $\frac{opposite}{hypotenuse}$ , and we see that the angle opposite of A is 15 while the hypotenuse is 17. Plug that into your formula and you get $\frac{15}{17}$ .

7 0

3 years ago

It took 30 minutes for Melinda to run 4 miles<br> (Find the unit rate and explain what they mean)

zhannawk [14.2K]

Each mile took 7.5 minutes. So we did this by dividing 30 by 4. Hope this helped you :)

5 0

3 years ago

Read 2 more answers