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4 years ago

Please help me with these problems

Mathematics

1 answer:

Zarrin [17]4 years ago

6 0

Answer:

The answer to your question is:

a) Letter B

b) Letter D

Step-by-step explanation:

a) | x | + 3 < 10

Formula

| x | < a ⇒ - a < x < a

| x | + 3 < 10

| x | < 10 - 3

|x | < 7 solution - 7 < x < 7

or -7 < x and x < 7 Letter B

b) it must be letter D x < 4 and x < 1

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Find the midpoint of points A(8,-7) and B(3,-1) graphically

sukhopar [10]

Answer: (5.5, -4)

Step-by-step explanation:

You can use the midpoint formula to find the midpoint of point A and point B.

$M(\frac{x_{1}+x_{2} }{2}, \frac{y_{1} + y_{2} }{2})$

x₁ = 8

x₂ = 3

y₁ = -7

y₂ = -1

$M(\frac{x_{1}+x_{2} }{2}, \frac{y_{1} + y_{2} }{2})$

$M(\frac{8+3 }{2}, \frac{-7 +-1}{2} )$

$M(\frac{8+3 }{2}, \frac{-7 -1}{2} )$

$M(\frac{11 }{2}, \frac{-8}{2} )$

$M(5.5, -4 )$

Midpoint = (5.5, -4)

Hope this helps!

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3 years ago

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3 years ago

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Please help me with these problems​

Please help me with these problems