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maria [59]
4 years ago
7

Can someone please help me solve this math problem, please? Thanks.

Mathematics
1 answer:
Ganezh [65]4 years ago
4 0
If you use FOIL to multiply these two brackets, it will lead you what is exactly written (xa+xb+ya+yb)


so it is correct

A
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Equation of the line contains the points (-3,2) and (5,-5)
makkiz [27]

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

y = mx + b

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis

We have the following points through which the line passes:

(x_ {1}, y_ {1}): (- 3,2)\\(x_ {2}, y_ {2}) :( 5, -5)

So the slope is:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {-5-2} {5 - (- 3)} = \frac {-7} {5 + 3} = - \frac {7} {8}

Thus, the equation of the line is of the form:

y = - \frac {7} {8} x + b

We substitute one of the points and find "b":

2 = - \frac {7} {8} (- 3) + b\\2 = \frac {21} {8} + b\\b = 2- \frac {21} {8}\\b = \frac {16-21} {8}\\b = - \frac {5} {8}

Finally, the equation is:

y = - \frac {7} {8} x- \frac {5} {8}

Answer:

y = - \frac {7} {8} x- \frac {5} {8}

6 0
3 years ago
Use the order of operations to simplify 43/5 + 15 / 5 - 1/5.
Iteru [2.4K]

Answer:

:<

Step-by-step explanation:

i really tried but its not the answer v-v

5 0
3 years ago
Read 2 more answers
3 + 4 = ?<br> וא<br> 2/3+2/4
Elina [12.6K]

Answer:

1. 7

2. 17/12 can be a mixed number

8 0
3 years ago
Someone please help me understand how to do this
andrey2020 [161]

Answer: These are the answers for the first section

A) 1/5(10)-4= -2

B) 1/5(-15)-4= -7

C) 1/5(2)-4= -3.6

Step-by-step explanation: You plug in those numbers for X

8 0
3 years ago
If x=1 find the value of x2 +2x + 1<br><br>​
Nataly [62]

Hey there!

x^2 + 2x + 1

= 1^2 + 2(1) + 1

= 1 * 1 + 2 + 1

= 1 + 2 + 1

= 3 + 1

= 4

Therefore, your answer is: 4

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

4 0
3 years ago
Read 2 more answers
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