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Burka [1]
2 years ago
11

I need help with all of this

Mathematics
1 answer:
Drupady [299]2 years ago
4 0
1. 7x + 9 = 48
7x = 58 - 9
7x = 49
X = 7
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Solve for x in the diagram below
ella [17]

Answer:

20

Step-by-step explanation:

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4x = 180-100

4x=80

divide both sides by 4

x=20

8 0
3 years ago
Which of the following is equivalent to cos x?
Otrada [13]

ANSWER

D) sin Y

EXPLANATION

The given triangle is a right triangle.

This implies that that:

x + y = 90 \degree

Then we have

y= 90 - x

Recall that

\cos(x)  =  \sin(90 - x)

But

90 - x = y

When we do the substitution, we get,

\cos(x)  =  \sin(y)

Therefore cos(x) is a equivalent to sin(y).

The correct answer is D.

3 0
3 years ago
56 is 80 percent of what number
monitta
Let us assume the number to be = x
Then
(80/100) * x = 56
4x/5 = 56
4x = 56 * 5
4x = 280
x = 280/4
  = 70
The value of the unknown number is 70. I hope the procedure is clear enough for you to understand. You can always use this method for solving similar problems in future without requiring any help from outside. Only thing that needs to be taken care of is the calculation part.
7 0
3 years ago
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What is the caputal of idaho
zavuch27 [327]

Capital of Idaho is boise this is not a math question

5 0
3 years ago
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1 - f = -5 the answer has to be 6 (show work) (please)
Anestetic [448]

Answer:

it is 6 because there is no other explanation to 1-f f=6!

Step-by-step explanation:

all i did was look 1 - f = 5 then f equaled 6!

8 0
3 years ago
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