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Afina-wow [57]
3 years ago
13

What is the measure ​

Mathematics
1 answer:
nekit [7.7K]3 years ago
5 0

Answer:

b = 12

Step-by-step explanation:

Complementary angles add to 90 degrees

a+b = 90

78+b = 90

Subtract 78 from each side

78-78+b = 90-78

b = 12

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-3 1/2 plus (-1 1/4)​
timofeeve [1]

Answer:

-19/4

The exact form is -19/4

The decimal form is -4.75

The mixed number form is -4 3/4

Hope this helps!

Please consider brainliest if it is worth it.

3 0
3 years ago
Read 2 more answers
Tan (-3pi/2) what is the value
Andreas93 [3]
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2 years ago
(10x – 2) - (2x - 7)<br> O 8x + 5<br> O 12.2 + 5<br> o 12c - 9<br> O 83 -9
Yuki888 [10]

Answer:

the first one

8x+5

Step-by-step explanation:

10x-2-2x+7= 8x+5

8 0
2 years ago
I need some help so if someone could help with shown work
murzikaleks [220]

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>.</em>

8 0
2 years ago
Please help I found this one a bit confusing ​
Brums [2.3K]

Answer:

7.2

Step-by-step explanation:

To reach point D from point C, you need to add 4 to the x-value of point C and take away 6 from the y-value. These numbers are the sides of the hypothetical triangle.

The Pythagorean Theorem states that a^2+b^2=c^2. If we plug the side lengths in for a and b, we get 4^2 + 6^2 = c^2. This can be simplified to 16+36=c^2, or 52 = c^2. If we root both sides, we find that c is equal to \sqrt{52}, which is slightly more than 7, at around 7.2.

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2 years ago
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