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3 years ago

I don’t know this please help

Mathematics

2 answers:

Brrunno [24]3 years ago

7 0

The Y-intercept is where the line goes through the Y-line. In this case, the Y-intercept is -3.

Slope is y2-y1/x2-x1

(5,6) (0,-3)

6-(-3)=9

5-0=5

9/5 is the slope.

-Steel jelly

Mila [183]3 years ago

3 0

Answer:

slope = $\frac{8}{5}$ , y-intercept = - 3

Step-by-step explanation:

to calculate the slope m use the gradient formula

m = ( y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, - 3) and (x₂, y₂ ) = (5,5) ← 2 points on the line

m = $\frac{5+3}{5-0}$ = $\frac{8}{5}$

the y-intercept is the point where the line crosses the y-axis

that is (0, - 3) ⇒ y-intercept = - 3

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Rewrite and order 13/15 and 5/6

forsale [732]

Answer:

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2 years ago

Demonstrate that the digits of a perfect square cannot add to 2, 3, 5, 6, or 8

Lelu [443]

It depends on what did you mean by saying perfect square. If I've understood it correctly, I can help you with a part of your problem. The squares of mod 9 are 1,4,7 which are came from 1,2,4. Addition of the given numbers are 2,3,5,6, 8, which are exactly the part of your problem. This number, which is not shown as squares Mod 9, and thus doesn't appear as a sum of digits of a perfect square. I hope you will find it helpful.

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3 years ago

Hey, can anyone help me with this? Okay, so in the equation 10 + 3x= -17 . The answer or (x) = -9 because you minus 10 on both s

Delvig [45]

Answer:

You do -17 + -10 inorder to change the operation used because both negatives does not mathematically look nice.

Step-by-step explanation:

To isolate the unknown, we need to move all the numbers on one side of the equal sign and all the unknow variables on one side.

Here we move 10 on the other side by taking away 10 both sides

10 + 3x = -17

-10 -10

then we are left with only 3x on one side and -27 on the other side because -17 - -10 = -27 , in this case it is acknowledge to change the operation from minus to add because the two minus are together, so we say -17 + -10 .

3x = -27

/3 /3

x = -9

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4 years ago

1. Point (−5,8) is reflected across the line = . What are the coordinates of ′? Show your work and explain.

netineya [11]

Answer:

(5,8) over y axis and (-5,-8) over x axis

Step-by-step explanation:

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4 years ago

How do I solve this this question

MAVERICK [17]

to find the sum:

2(3t-4) - (t^2 + 2) - 4t(t-1)

6t - 8 - t^2 - 2 - 4t^2 + 4

6t - 8 - 5t^2 + 2

-5t^2 + 6t - 6

by the sum of roots and product of roots formulae

ax^2 + bx + c

x + y = $\frac{-6}{-5}$

x + y = $\frac{6}{5}$

xy = $\frac{-6}{-5}$

xy = $\frac{6}{5}$

x - y =

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3 years ago