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RSB [31]
3 years ago
5

-4x+7 x= -1 evaluate the expression

Mathematics
1 answer:
NeX [460]3 years ago
3 0
Hello luv! So here is how I will evaluate this expression
-4x+7, x=-1 so you are using substitution
-4(-1)+7
=11

:)

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Brianne can paint 120 square feet of walls in 34 hour.
kotegsom [21]
Good afternoon. 

120square --- 34h
 x   square ---   1h
      34x = 120
     x = 120/34
   x = 3,5 square
6 0
4 years ago
The measure ∠BQS of is 80°. What is the m∠NQS? 42° 48° 128° 32°
fomenos

Answer:

m<NQS = 32°

Step-by-step explanation:

Given:

m<BQS = 80°

m<BQN = 48°

Required:

m<NQS

SOLUTION:

Angle BQN and angle NQS are adjacent angles having a common line, QN, and a common corner point, Q.

Therefore:

m<BQN + m<NQS = m<BQS (angle addition postulate)

48° + m<NQS = 80° (substitution)

m<NQS = 80 - 48° (Subtraction of 48 from each side)

m<NQS = 32°

3 0
3 years ago
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Answer: D

Step-by-step explanation: I think

6 0
2 years ago
What is the probability of rolling a die and it landing on a number less than 3?
snow_tiger [21]

Answer:

2/6 (33.33%)

Step-by-step explanation:

4 0
3 years ago
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The answer for this math problem
laiz [17]
Hi, We have a isosceles triangle.

Then,

There is two angles = (2x +2)°

As the sum of angles = 180° To the any triangle.

Then we wiil stay with:

(2x+2)° + (2x+2)° +(3x+1)° = 180°

Canceling °

2x+2+2x+2+3x+1=180

7x +5 = 180

7x = 180-5

7x = 175

Passing 7 dividing 175

x = 175/7

x = 25

This would be your answer!
7 0
3 years ago
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