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Aliun [14]
3 years ago
7

How many solutions does the equation 5x + 10 = 5x - 8 have?

Mathematics
1 answer:
andrew-mc [135]3 years ago
3 0

Answer:

2 solutions

Step-by-step explanation:

5x+10=5x-8

5x-5x=8-10

=-2

5x+10=5x-8

10+8=5x-5x

=18

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HELP PLEASE SELECT 5 ANSWER I WILL MARK AS BRAINLEST‼️‼️‼️‼️‼️
Maslowich

Answer:

2.5 (2 1/2)

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If you check, each of these can be written as a fraction.

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4 0
3 years ago
If Gabby wants to make a regular octagon with a side length of 20 inches using a wire how much wire does she need? Justify your
liraira [26]

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Step-by-step explanation:

If an octagon has 8 sides and the side length is 20 inches, 20 x 8 = 160 inches. That means she needs 160 inches of wire.

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3 years ago
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prohojiy [21]
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7 0
4 years ago
There are 10 balls in an urn, numbered from 1 to 10. If 5 balls are selected at random and their numbers are added, what is the
Kisachek [45]

Let B_i denote the value on the i-th drawn ball. We want to find the expectation of S=B_1+B_2+B_3+B_4+B_5, which by linearity of expectation is

E[S]=E\left[\displaystyle\sum_{i=1}^5B_i\right]=\sum_{i=1}^5E[B_i]

(which is true regardless of whether the X_i are independent!)

At any point, the value on any drawn ball is uniformly distributed between the integers from 1 to 10, so that each value has a 1/10 probability of getting drawn, i.e.

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and so

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8 0
3 years ago
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Norma-Jean [14]

9514 1404 393

Answer:

  (a)  (-2, 4)

Step-by-step explanation:

The orthocenter is the point of concurrence of the altitudes of the triangle.

A plot of the triangle vertices shows the triangle to be acute. That means the orthocenter is inside. This eliminates choices B, C, D, which are all points outside the triangle.

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8 0
3 years ago
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