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valkas [14]
2 years ago
7

(-3x) to the negative first power

Mathematics
1 answer:
vichka [17]2 years ago
3 0

Answer:

Step-by-step explanation:

okauy

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Multiply (−4)(−2)(−5)<br><br> A. -40<br><br> B. -8<br><br> C. 8 <br><br> D. 40
wlad13 [49]
(-4)(-2)= 8
8(-5)= -40
Answer: -40
8 0
3 years ago
Use the given information to write an equation and solve the problem.<br> (28-31 in the picture)
tia_tia [17]

Answer:

28. 120 degrees

29. 30 degrees

30. 56 degrees & 124 degrees

31. 72 degrees, 108 degrees, and 18 degrees

Step-by-step explanation:

We assign variable x for the answer we are looking for (28-29).

28.

Supplement means x + y = 180 degrees. We also know x = 2y. Substitution gives us 3y = 180 degrees, so y = 60 degrees and x = 120 degrees.

29.

Complement means x + y = 90 degrees. We are given 2x = y. Substitution brings us 3x = 90 degrees, x = 30 degrees.

30.

Supplement means x + y = 180 degrees. We are told that y = 2x + 12, so we substitute. This gives 3x + 12 = 180 degrees, x = 56 degrees. Substituting that back into the equation for y, we get 124 degrees.

31.

Supplement means x + y = 180 degrees. Complement means x + z = 90 degrees.  Using our given info, we know y = 6z. We can substitute that in to get x + 6z = 180. Subtracting our second and third equations, we get 5z = 90, z = 18 degrees.  Therefore, x = 72 degrees, y = 108 degrees.

3 0
2 years ago
Read 2 more answers
What is the interquartile range(IQR) of the data set represented by this box plot?
Nesterboy [21]
IQR=Q3-Q1
73-51=22
Answer:22
5 0
3 years ago
Read 2 more answers
Help me and I’ll give brainliest! Plsss
olganol [36]
Answer:
(#14 - supplementary) x = 10.5
(#15 - supplementary) x = 10

Explanation:
For these problems, we must know that a supplementary angle can be viewed as a sum of angles that add to 180 degrees. With this known, we can write our equations to find x.

(#14)
15x - 12 + 5x - 18 = 180
20x - 30 = 180
20x = 210
x = 10.5

(#15)
6x + 13 + 14x - 33 = 180
20x - 20 = 180
20x = 200
x = 10

Hope this helps.

Cheers.
4 0
1 year ago
4/5 n = 9/10<br>solve n
Alex787 [66]
N =9/8
n = 1 1/8

Hope this helpsb☺
6 0
3 years ago
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