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Katen [24]
2 years ago
11

If y = x3 + x, find the value of y when x=-2

Mathematics
2 answers:
zvonat [6]2 years ago
8 0

Answer:

y=-8

Step-by-step explanation:

if x=-2 -2*3= -6, -6+-2=-8

andrew-mc [135]2 years ago
5 0

Answer:

-8

Step-by-step explanation:

-2 times 3 is -6, and -6 plus -2 equals -8

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32. What is the perimeter of a regular octagon with a side length of 7 units?
katovenus [111]

Answer:

56

Step-by-step explanation:

solution

Here

P=8a=8·7=56

4 0
1 year ago
Read 2 more answers
Jose has 7 used stamps for every 4 new stamps. If he has 28 new stamps, how many used stamps does he have?
kipiarov [429]

Answer:

21

Step-by-step explanation:

8 0
3 years ago
Give the parallel cross-section for the following: Cylinder, cone, sphere, and pyramid.
Maurinko [17]

The parallel cross-sections of a cylinder, cone, sphere, and pyramid are a circle, a circle, a circle, and a square.

We are given some solids. Solid geometry, or stereometry, is the traditional name for the geometry of three-dimensional Euclidean spaces in mathematics. Stereometry is concerned with measuring the volumes of various solid figures. The given solids are a cylinder, cone, sphere, and pyramid. We need to find the parallel cross-sections of the given solids. Parallel cross sections are cross sections of a solid that are parallel to each other. A cross section is a straight slice of an object. The parallel cross-sections of a cylinder, cone, sphere, and pyramid are a circle, a circle, a circle, and a square.

To learn more about cross-sections, visit :

brainly.com/question/15541891

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6 0
1 year ago
Does the ordered pair (−5,−5) satisfy the following system of equations?<br> {−3x−3y=125x+5y=−20
FrozenT [24]

Well, let's see. The problem gave you an ordered pair. In other words, you have an 'x' and a 'y' coordinate. All you need to do is put them into the equation.

Step-by-step explanation:

This means that instead of --

-3x - 3y = 125 + 5y = -20

We would have:

-3(-5)-3(-5) = 125(-5) + 5(-5) = -20

From here, you just simplify it into:

30 = -650 = -20

Since the values are not the same, the ANSWER is NO. The ordered pair does not satisfy the following system of equations.

3 0
3 years ago
One postive interger is 5 less than another. The product of the two intergerd id 24. What are the intergers?
Nesterboy [21]
Your function will be 24=X+(Y+5)

to solve you subtract 5 from each side giving you 19=X+Y now you divide the 19 by 2 so you figure out the base integers giving you 9.5

now you add 5 to one of your integers meaning 9.5+5=14.5

so your integers are 9.5 and 14.5

to check this you do 14.5-9.5 which equal 5 now you do 14.5+9.5 which equals 24
4 0
3 years ago
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