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rusak2 [61]
3 years ago
11

Evaluate f=9/5c + 32 for c=20 degree

Mathematics
1 answer:
Alisiya [41]3 years ago
4 0
F=9/5(20)+20
F=36+20
F=56
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7 + 8(3² -2)<br> PLEASE SHOW ALL THE STEPS!
IrinaK [193]

Answer

105

Step-by-step explanation:

first bring 3 to the second power and get 9

then you have 7+8(9-2)

then add 7+8 and get 15

then you have 15(9-2)

then subtract 9-2 and get 7

then you have 15(7)

then times them and get 105



4 0
3 years ago
Helpppp with this math
Ilia_Sergeevich [38]

9514 1404 393

Answer:

  x = 8 1/3

Step-by-step explanation:

Put the known values into the equation and solve for x.

  f(x) = 3x -1

  24 = 3x -1 . . . . . use 24 for f(x)

  25 = 3x . . . . . . . add 1 to both sides

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The input is x = 8 1/3.

4 0
3 years ago
2÷ 2/5<br> I need help on this
PIT_PIT [208]

Answer:

5

Step-by-step explanation:

keep, change, flip

2/1 (keep)  x (change to multiply)  5/2(2/5 flips to 5/2)

2/1  x  5/2

10/2

5

4 0
3 years ago
Read 2 more answers
In circle O, AC and BD are diameters.
Ronch [10]

Answer:

mArc A B = 120° (C)

Step-by-step explanation:

Question:

In circle O, AC and BD are diameters.

Circle O is shown. Line segments B D and A C are diameters. A radius is drawn to cut angle D O C into 2 equal angle measures of x. Angles A O D and B O C also have angle measure x.

What is mArc A B?

a)72°

b) 108°

c) 120°

d) 144°

Solution:

Find attached the diagram of the question.

Let P be the radius drawn to cut angle D O C into 2 equal angle measures of x

From the diagram,

m Arc AOC = 180° (sum of angle in a semicircle)

∠AOD + ∠DOP + ∠COP = 180° (sum of angles on a straight line)

x° +x° + x° =180°

3x = 180

x = 180/3

x = 60°

m Arc DOB = 180° (sum of angle in a semicircle)

∠AOB + ∠AOD = 180° (sum of angles on a straight line)

∠AOB + x° = 180

∠AOB + 60° = 180°

∠AOB = 180°-60°

∠AOB = 120°

mArc A B = 120°

5 0
2 years ago
Find the value of x, 2:7::x:49​
musickatia [10]

Answer:  x = 14

Step-by-step explanation:

-x+14 = 0  

Subtract  14  from both sides of the equation :  

                     -x = -14

Multiply both sides of the equation by (-1) :  x = 14

7 0
3 years ago
Read 2 more answers
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