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3 years ago

Need help ( due tomorrow) will give you brainliest answer if ALL answers are correct and ALL done

Mathematics

1 answer:

taurus [48]3 years ago

7 0

1) slope= -5/2 Y-intercept= -1
2) slope= 3/2 Y-intercept= 3
3) slope= -7/3 Y-intercept= 4
4) slope= -4/9 Y-intercept= -3
5) slope= -2/1 Y-intercept= 2
6) slope= 1/2 y-intercept= -1
7) slope= 5/2 Y-intercept= -4
8) slope= -1/3 Y-intercept= 1
9) slope= 1/2 Yintercept= 4
10) slope= -2/3 y-intercept= -2

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4x-5y=13

love history [14]

Hello :
4x-5y=13...(1)
x+5y=-3...(2)
(1)+(2) : 5x = 10
x=2
subsct in (2) : 2+5y = -3
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3 years ago

When five is added to three more than a certain the result is 19 what is the number?

gulaghasi [49]

Answer: It should be 11

Step-by-step explanation:

11 + 3 = 14 14 is three more than 11 and when you add 5 you get 19

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3 years ago

To the nearest hundredth, what is the length of line segment AB?

Vesnalui [34]

Answer:

5.83 units

Step-by-step explanation:

See attached picture. You can use the Pythagorean Theorem. I added some lines to show the legs of a right triangle. AB is the hypotenuse.

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2 years ago

Solve the system (x-1)²+(y-2)²=2² and y=2x+2.

Likurg_2 [28]

Answer:

(x, y) = (-0.6, 0.8) or (1, 4)

Step-by-step explanation:

Use the second equation to substitute for y in the first.

(x -1)² +((2x +2) -2)² = 4

x -2x +1 + 4x² = 4 . . . . . . . eliminate parentheses

5x² -2x -3 = 0 . . . . . . . . . . subtract 4, collect terms

Now we can rearrange the middle term to ease factoring by grouping.

(5x² -5x) +(3x -3) = 0

5x(x -1) +3(x -1) = 0

(5x +3)(x -1) = 0

The values of x that make these factors zero are ...

x = -3/5, x = 1

The corresponding values of y are ...

y = 2(-3/5)+2 = 4/5 . . . . for x = -3/5

y = 2(1) +2 = 4 . . . . . . . . for x = 1

The solutions are: (x, y) = (-3/5, 4/5) or (1, 4).

___

A graphing calculator verifies these solutions.

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3 years ago

What’s the answer to 2.05 X 3.6

mr Goodwill [35]

Answer:the answer would be 7.38

7 0

3 years ago