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Reptile [31]
3 years ago
7

PLEASE PLEASE I SUCK AT MATH AND ITS ALL DUE FRIDAY PLEASE 10 piont !!! Select all the correct systems of equations.

Mathematics
1 answer:
alekssr [168]3 years ago
4 0

Answer:

2x + y = 17

-6x = 3y - 51

Step-by-step explanation:

You get an infinite number of solutions when two equations are really just the same. This means you can convert one into the other simply by multiplying one to get the other.

In the above answer, if you multiply the above by -3 you get:

-6x -3y = -51

which is of course -6x = 3y - 51

So that is an example of a pair that has infinite solutions.

To find all of them, you'd carefully have to compare each 2 and see if there is a multiplier to convert one into the other. You can do that!

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Find the slope of the line that passed through (5,8) and (1,13)​
Olenka [21]

Answer:

Slope is -5/4

Step-by-step explanation:

to find the slope of two points,  you subtract the y values/x values. So 8-13/5-1 which ends up as -5/4 which is the answer.

3 0
3 years ago
What is the least common denominator for the fractions1/6and 3/4 ?
melomori [17]
A. 12; Least common denominator is the least multiple that the denominator have together. So you multiply the denominators until you get the first number they both have in common.
6*1 = 6
6*2 =12

4*1 =4
4*2 =8
4*3 = 12 

Since the first number they both have in common is 12, the least common denominator is 12
3 0
2 years ago
5.) If all the edges of prism A are multiplied by 5 to create prism B. The volume of prism B will be __________ times the volume
zimovet [89]

Question:

If all the edges of prism A are multiplied by 5 to create prism B. The volume of prism B will be __________ times the volume of prism A?

* 5

* 125

* 50

* 25

Answer:

* 5 times.

Step-by-step explanation:

Let us represent all the edges of prism A as = X

Prism B = All the edges of Prism A × 5

Prism B = X × 5

= 5X

Let's assume the prism is a cube

Volume of a Prism(cube) = L × W × H

Volume of Prism A = L × W × H

Volume of Prism B = 5 (L × W × H)

Therefore, The volume of prism B will be 5 times the volume of prism A

6 0
3 years ago
-x + 2y= -1 <br> x= -15<br> value of y?
kolbaska11 [484]
Simply plug in -15 for x in our given equation.

-x + 2y = -1

-(-15) + 2y = -1

Simplify.

15 + 2y = -1

Subtract 15 from both sides.

2y = -1 - 15

Simplify.

2y = -16

Divide both sides by 2

Y = -8

Hope I helped :)
8 0
2 years ago
1. A basketball is thrown from the roof of a 50-foot building. It reaches a
Ksenya-84 [330]

Answer:

Step-by-step explanation:

The basketball reaches a maximum height of 86 feet after 1.5 seconds, so the vertex is (1.5, 86).f(x) = a(x − 1.5)² + 86We know the initial height is 50 feet, so plug in the point (0, 50) to find the value of a.50 = a(0 − 1.5)² + 86-36 = 2.25aa = -16f(x) = -16(x − 1.5)² + 86Simplify to get the standard form.f(x)

= -16(x − 1.5)² + 86f(x) = -16(x² − 3x + 2.25) + 86f(x) = -16x² + 48x − 36 + 86f(x) = -16x² + 48x + 50

5 0
2 years ago
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