The first one is D because c represents the x and b represents the y. For the second one:
38(2) = 76
180-76 (this is the sum of the unknown measures)
104/2 (finds the measure of each angle)
52
I am unsure of the final one though.
Hope this helps!

5 0

3 years ago

Use the dot product to find |v| when v = (-2,-1) a. -1 b. -3 C. Root 5 D. Root 3

Firdavs [7]

Answer
Root 5 for sure

5 0

3 years ago

Solve the proportions using cross products. Round to the nearest hundredth is necessary. 21miles/49hours = 15miles h hours

SSSSS [86.1K]

$\dfrac{21}{49}=\dfrac{21:7}{49:7}=\dfrac{3}{7}\\\\\dfrac{21}{49}=\dfrac{15}{h}\to\dfrac{3}{7}=\dfrac{15}{h}\qquad\text{cross multiply}\\\\3h=(7)(15)\\\\3h=105\qquad\text{divide both sides by 3}\\\\\boxed{h=35}\\\\Answer:\ 35\ hours$

8 0

3 years ago

When 3 is subtracted from one third of a number n, the result is less than 6. Which inequality and solution represent this situa

MArishka [77]

Answer:

1/3n-3÷6

Step-by-step explanation:

3 is subtraced form 1/3

3 0

2 years ago

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