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3 years ago

For each value of determine whether it is a solution to 2x - 7 = -23

Mathematics

1 answer:

Fantom [35]3 years ago

8 0

Answer:

x = -8

Step-by-step explanation:

-23 + 7 = -16

-16 ÷ 2 = -8

2 × -8 =-16 - 7 = -23

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Diego was asked to plot these points: (-50, 0), (150, 100), (200, -100), (350, 50), (-250, 0). What interval could he use for ea

ivolga24 [154]

Answer:

Interval of 50 on both axis

Step-by-step explanation:

Given

$(x_1,y_1) = (-50,0)$

$(x_2,y_2) = (150,100)$

$(x_3,y_3) = (200,-100)$

$(x_4,y_4) = (350,50)$

$(x_5,y_5) = (-250,0)$

There are several ways to do this, but I will use the observation method, since the dataset is small.

Considering the x-coordinates

$x = \{-50,150,200,350,-250}$

Each element of the data set is a multiple of 50.

Hence, an interval of 50 can be used on the x-axis

Considering the y-coordinates

$y = \{0,100,-100,50,0\}$

Each element of the data set is a multiple of 50.

Hence, an interval of 50 can be used on the y-axis

<em>So, an interval of 50 can be used on both axes</em>

5 0

3 years ago

HELP!!!!!!!

igomit [66]

Substituting the data points into the model:

f(x)= -x2 + 2x -3

f(-2)=-11

f(0)=-3

f(1)=-2

f(3)=-6

f(5)=-18

So A is the right ans.

7 0

3 years ago

Read 2 more answers

Which ratio does not belong with the other three? Explain your reasoning. 4/10 2/5 3/5 6/15

JulsSmile [24]

Answer:

3/5

Step-by-step explanation:

7 0

3 years ago

A car dealership has five exterior color choices, six interior color choices, and two model choices. How many different ways cou

skelet666 [1.2K]

Answer: I believe it would be 42 different ways.

Step-by-step explanation:

multiply the 7 and the 6 to determine it

4 0

3 years ago

Find the slope of the line throgh each pair of points

svlad2 [7]

Answer:

19/24

Step-by-step explanation:

slope = rise/run = (y1 - y2) / (x1 - x2)

s = (19 - 0) / (8 - -16)

s = 19/24

4 0

3 years ago