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Eduardwww [97]
3 years ago
12

Help me pleaseeeeeeeee

Mathematics
1 answer:
irina1246 [14]3 years ago
5 0

Answer:

C.

Step-by-step explanation:

The diameter is the line across the center of the circle

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It takes 58 pounds of seed to completely plant a 9-acre field. How many acres can be planted per pound of seed?
ozzi

Answer:

6 4/9

Step-by-step explanation:

You divide 58 and 8 and your answer would be 6.444444 repeating.

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Step-by-step explanation:

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Last one, use trigonometry to help you solve for y given that one side is 4 and there is an angle of 50 degrees.
Ostrovityanka [42]

Answer:

y = 6.22

You can solve this in two ways.

1.) Use SOH CAH TOA:

I typically start off by labeling the sides of the triangle with H (hypotenuse), O (opposite), and A (adjacent). Because I need to figure out what y is when given an angle and 4, I will use CAH, or cosine.

\cos(angle)  =  \frac{adjacent}{hypotenuse}

\cos(50)  =  \frac{4}{y}

\cos(50)  \times y = 4

y =  \frac{4}{ \cos(50) }

y = 6.22

2.) Use Law of Sines:

Solve for the last angle inside the triangle first.

180 - (50 + 90) = 40

Then use the angle you found (40°) in the equation.

\frac{4}{ \sin(40) }  =  \frac{y}{ \sin(90) }

\frac{4}{ \sin(40) }  \times  \sin(90)  = y

y = 6.22

3 0
3 years ago
X/7=3/5 so x=??????????????????
frosja888 [35]
By using cross multiplication x= 3×7÷5=4.2
the answer is 4.2
5 0
3 years ago
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10. What is the perimeter of the triangle with sides 15 in, 20 in, and 25 in?
Gnom [1K]

Answer:

P = 60 inches

Step-by-step explanation:

Perimeter is the distance around the outside of a shape. So, to find perimeter, add up all the sides.

The side lengths were given, add them:

15 + 20 + 25

= 60

The perimeter is 60 inches.

6 0
2 years ago
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