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3 years ago

Helppppp Label the parts of the circle below. Write the correct letter next to the circle part.

Mathematics

2 answers:

Mama L [17]3 years ago

8 0

Center- A

Radius-D

Circumference-C

Diameter-B

Irina-Kira [14]3 years ago

4 0

Answer:

C is the Circumference

A is the center

B is the Diameter

D is the Radius

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Cos ■ = 7/14 A. 39° B. 30° C. 26.57° D. 60°

dolphi86 [110]

Option D:

$$\cos60^\circ=\frac{7}{14}$

Solution:

Given data:

$$\cos -- = \frac{7}{14}$

Let the unknown degree be x.

To find the degree x:

$$\cos x = \frac{7}{14}$

Cancel the common factor 7 in the numerator and denominator.

$$\cos x = \frac{1}{2}$

Using trigonometry basic formula,

we know that $\cos60^\circ = \frac{1}{2}$ .

So, x = 60°.

The unknown degree measure is 60°.

$$\cos 60^\circ= \frac{7}{14}$

Hence option D is the correct answer.

4 0

3 years ago

Which equation is true for any value of y?

zvonat [6]

I'm 80% sure.
The Answer is: B

Because if I plugged all "y" with a the same number in the same postion they would equal the same.

For EX: 4*3+2+2=(4*3+2)+2
16 = 16

Hope this helps!

8 0

3 years ago

One angle of an isosceles triangle is 80º. What are the other two angles?

eimsori [14]

Answer:

80 and 20

Step-by-step explanation:

80+80+20=180

4 0

3 years ago

What is 4x-9+19=8x-14

yawa3891 [41]

- 4x from 8x = 4x
-9 + 19 = 4x -14
-9 + 19 = 10
10 = 4x -14
+14
24 = 4x
divide by 4
X = 6

4 0

2 years ago

HELP Asap :-/!!!! AHHHHHHHHHHH

pychu [463]

Answer:

x = 9

Step-by-step explanation:

If ΔMNO ≅ ΔPST, their corresponding sides must also be ≅(congruent).

NO is corresponds to TS, thus sides NO and side TS are ≅.

=> 20 = 3x - 7

=> 3x = 27

=> x = 9

6 0

2 years ago