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Hoochie [10]
3 years ago
5

Given x=-3, y=6, and z=-4 -15+(-x)+y=

Mathematics
1 answer:
Alexus [3.1K]3 years ago
5 0

Answer:

-6

Step-by-step explanation:

We are given x=- 3 , y= 6 and z= -4.

We are also given the expression:

-15 + (-x) +y

Substitute -3 in for x and 6 in for y.

-15 + (- -3) + 6

2 negative signs creates a positive sign

-15 + (+3) +6

-15 + 3+ 6

Add -15 and 3.

(-15+3) +6

-12 +6

Add -12 and 6.  

-6

-15+(-x)+y evaluated at x= -3 and y=6 is equal to -6.

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In parallelogram MNPQ, side MN is seven inches longer than twice the length of side NP. If the perimeter of MNPQ is 68 inches, t
Svetlanka [38]

Answer: NP = 9 inches

Step-by-step explanation:

In a parallelogram, the opposite sides are equal.

If the length of the longer side is MN, it means that the length of the two opposite longer sides is 2MN.

If the length of the shorter side is NP, it means that the length of the two opposite shorter sides is 2NP.

The perimeter is 2MN + 2NP

If the perimeter of MNPQ is 68 inches, it means that

2MN + 2NP = 68- - - - - - - - - - - -1

In parallelogram MNPQ, side MN is seven inches longer than twice the length of side NP. It means that

MN = 2NP + 7- - - - - - - - - - -2

Substituting equation 2 into equation 1, it becomes

2(2NP + 7) + 2NP = 68

4NP + 14 + 2NP = 68

4NP + 2NP = 68 - 14

6NP = 54

NP = 54/6

NP = 9 inches

6 0
3 years ago
3 minus a number is equal 8
krek1111 [17]

Answer

<h2>11</h2>

Step-by-step explanation:

well is you know 8+8=16 then....3-11=8

6 0
3 years ago
X^3+y^3=???????????????
omeli [17]

Answer:

Well since we don't know what X or Y is, then we can't answer this question.

Step-by-step explanation:

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3 years ago
A box contains 24 yellow, 33 green and 35 red jelly beans. If 8 jelly beans are selected at random, what is the probability that
tensa zangetsu [6.8K]

Answer:

0.00014

Step-by-step explanation:

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If we need to pick 8 jelly beans and want them all to be green:

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7/2x + 1/2x = 7 + 9/2x
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Step-by-step explanation:

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