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Fudgin [204]
2 years ago
8

Can SOMEONE please HELP ME on THIS????!!

Mathematics
1 answer:
andrey2020 [161]2 years ago
5 0

Answer:

m C and m D are a linear pair // Definition of supplementary angles

m C + m D =180 // Definition of a linear pair

Step-by-step explanation:

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Find the exact value of sin2 theta given sin theta =5/13, 90°<theta <180°
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\bf \pm\sqrt{13^2-5^2}=a\implies \pm\sqrt{144}=a\implies \pm 12 =a \implies \stackrel{II~quadrant}{-12=a}&#10;\\\\\\&#10;therefore \qquad cos(\theta )=\cfrac{\stackrel{adjacent}{-12}}{\stackrel{hypotenuse}{13}}&#10;\\\\&#10;-------------------------------\\\\&#10;sin(2\theta )\implies 2sin(\theta )cos(\theta )\implies 2\left(\frac{5}{13}  \right)\left( \frac{-12}{13} \right)\implies -\cfrac{120}{169}
3 0
3 years ago
Irene has 1 gallon of milk. She uses
Umnica [9.8K]

Answer:

32

Step-by-step explanation:

In 1 gallon, there are 128 ounces.

Divide 128 by 4 and get 32.

5 0
2 years ago
The table shows the relationship between the number that fit into given number of boxes from a bakery . What is the missing valu
ki77a [65]

Answer:

The missing value should be 48 because between the two numbers of each group. They are multplied by 6

Step-by-step explanation:

Hope this Helped!

7 0
2 years ago
Read 2 more answers
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3 0
3 years ago
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The price for a TV was decreased by 20% and then by 10%. By what percent was the new price lower than the original?
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0.8(100) = 80$
Reduced again; by 10% means that it is now 100-10 = 90% of the 80$
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sale price ÷ original price

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100 - 72 = 28%

The new price is 28% lower than the original price.

7 0
3 years ago
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