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MrRa [10]
3 years ago
14

Find the midpoint of A and B where A has coordinates (-7, 1) and B has coordinates (3,-5).

Mathematics
1 answer:
zepelin [54]3 years ago
3 0

Answer:

A (-7, 1) = (X1, Y1)

B (3, -5) = (X1, Y2)

Now,

Mid point = (X1 + X2÷2, Y1 + Y2 ÷ 2)

= {-7+3÷2, 1+(-5)÷2}

= (-4÷2, 1-5÷2)

= (-4÷2, -4÷2)

= (-2, -2)

Step-by-step explanation:

I hope it will help you to study.

You might be interested in
Write the equation of the line that passes through (-1, 11) and (3, -5)
Genrish500 [490]

Answer:

y= -4x+7

Step-by-step explanation:

The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.

Let's find the gradient of the line first.

gradient =  \frac{y1 - y2}{x1 - x2}

Using the above formula,

m =  \frac{11 - ( - 5)}{ - 1 - 3}  \\ m =  \frac{11 + 5}{ - 4}  \\ m =  \frac{16}{ - 4}  \\ m =  - 4

Susbt. m= -4 into the equation:

y= -4x +c

Subst. a coordinate to find c.

When x=3, y= -5,

-5= -4(3) +c

-5= -12 +c

c= 12 -5

c=7

Thus the equation of the line is y= -4x +7.

8 0
3 years ago
Can u guys PLEASE answer this question ASAP. THIS IS EXTREMELY URGENT
Ulleksa [173]

Answer:

The answer to your question is $56  

Step-by-step explanation:

Data

Payment before noon = $11.20

Payment after noon = $11.20/2

Time from 9:00 to 16:00

Process

1.- Calculate the hours worked before noon and the hours worked after noon.

    Before noon = 12:00 - 9 = 3 hours

    After noon = 16:00 - 12:00 = 4 hours

2.- Calculate the payment

Payment = (3 x 11.2) + (4 x 11.2/2)

               = 33.6 + 22.4

               = $56      

8 0
3 years ago
(
Sladkaya [172]

The expression is simplified to give -7x^2 - 11x

<h3>What are algebraic expressions?</h3>

Algebraic expressions are expressions that contains variables, constants, factors and coefficients.

They are also made up of arithmetic operations such as addition, subtraction, multiplication, division, etc.

From the information given, we have;

(- x^2 - 5x ) - ( 6x^2 + 5x)

expand the bracket

-x^2 - 5x - 6x^2 - 5x

collect like terms

-7x^2 - 11x

Thus, the expression is simplified to give -7x^2 - 11x

Learn more about algebraic expressions here:

brainly.com/question/4344214

#SPJ1

8 0
2 years ago
The width of a rectangle is 9 inches Shorter than it's length.
m_a_m_a [10]
Divide 252 by 21.
21 times 12 = 252
12 is 9 units shorter than 21.
so the answer is 12 inches by 21 inches
you work backwards from the area
area = width times length
a = wl
we know w is 9 units shorter than the length
so now we have the equation 252=(l-9) times l
plug in 21 for l and then solve there is your answer.
6 0
2 years ago
Read 2 more answers
Hi, please let me know if this is correct, please tell me if I’m wrong, thx (:
stepan [7]

Answer:

It's correct!

Step-by-step explanation:

20.9/10000=0.00209

pls mark me as brainliest!

3 0
2 years ago
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