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leva [86]
2 years ago
6

Question:

Mathematics
1 answer:
Y_Kistochka [10]2 years ago
6 0

The frame can hold a mirror with an area of 78.5 in².

<h3>How to find the area?</h3>

The area for a circle of diameter D is given by the formula:

A = pi*(D/2)^2

Where pi = 3.14

Here we know that the diameter is 10 inches, replacing that in the area equation we can get:

A = 3.14*(10in/2)^2 = 3.14(5in)^2 = 78.5 in^2

So the frame can hold a mirror with an area of 78.5 in².

If you want to learn more about circles:

brainly.com/question/1559324

#SPJ1

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sergeinik [125]

Answer:

A. x = 58°

B. x = 10m

C. a = 44°

All approximated to nearest whole number.

Step-by-step explanation:

All triangles given are right angled triangles. Therefore, we would apply the trigonometry functions to solve for each missing side and angle.

Recall: SOHCAHTOA

a. Adjacent = 4.8cm,

Hypotenuse = 9cm

Angle to find =x°

Thus, we would apply the following formula:

Cos θ = Adjacent/Hypotenuse

Cos θ = 4.8/9 = 0.5333

θ = Cos-¹(0.5333) = 57.77

x ≈ 58° (to nearest whole number)

b. Opposite side = x

Hypothenuse = 40 m

Included angle = 14°

We would use:

Sine θ = opposite/hypothenuse

Sin (14) = x/40

Multiply both sides by 40

40*sin(14) = x

40*0.2419 = x

x = 9.676 = 10 m (to nearest whole number)

c. Opposite = 87mm

Adjacent = 91mm

θ = a°

We would use:

Tan θ = opposite/adjacent

Tan θ = 87/91

Tan θ = 0.9560

θ = tan-¹(0.9560)

θ = a = 43.71

a ≈ 44° (to nearest whole number)

7 0
3 years ago
What’s 10% of 70 I really need the answer plz help!!!!!
egoroff_w [7]

7

10% of 70 is 7

hope this help

6 0
3 years ago
Read 2 more answers
Halle solved 664/48 below. She got a quotient of 13 with a remainder of 40. How could she solve 659/48 without redoing the work?
Lerok [7]
She should multiply the quotient by 48.
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4 years ago
The midpoint of xy is located at the origin
klio [65]

Answer:

Is there supposed to be an image?

Step-by-step explanation:

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Y=arccos(1/x)<br><br> Please help me do them all! I don’t know derivatives :(
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Answer:

Step-by-step explanation:

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2 years ago
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