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Hoochie [10]
3 years ago
12

I need help it's due tomorrow​

Mathematics
2 answers:
Butoxors [25]3 years ago
5 0

5 and 4
3 and 6
Good luck with it
hoa [83]3 years ago
4 0

5 and 4

3 and 6

hope this helps!

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Last question. 50 points!​
Shkiper50 [21]

<u>w</u><u>=</u><u>-</u><u>1</u><u>.</u><u>5</u>

<u>w</u><u>=</u><u>2</u>

Answer:

Solution given:

\sqrt{2w²-19w+31}+2=7-2w

again

keep square root alone

\sqrt{2w²-19w+31}=7-2w-2

solve subtraction of 7-2

\sqrt{2w²-19w+31}=5-2w

Squaring on both side

(\sqrt{2w²-19w+31})²=(5-2w)²

2w²-19w+31=5²-2*5*2w+4w²

take terms one side

2w²-19w+31-25+20w-4w²=0

-2w²+w+6=0

2w²-w-6=0

doing middle term factorisation

2w²-(4-3)w-6=0

2w²-4w+3w-6=0

take common from each two term

2w(w-2)+3(w-2)=0

(w-2)(2w+3)=0

either

w=2

or

W=-3/2=-1.5

3 0
2 years ago
Read 2 more answers
This diagram shows a pre-image △ABC , and its image, ​ △A′′B′′C′′ ​ , after a series of transformations.
Stella [2.4K]
First ABC is reflected across the y axis to become A'B'C'

Then A'B'C' is rotated 90 counterclockwise about the origin to make it A"B"C"

Because the transformations are both rigid, the pre-image and image are congruent

Hope this helped
8 0
3 years ago
Read 2 more answers
What is the slope of your line perpendicular to y=5x-12
krok68 [10]

The slope of your line is the x-coefficient: 5.

The slope of a perpendicular line is the negative reciprocal of that: -1/5.

4 0
3 years ago
Read 2 more answers
Which of the following lines is not parallel to the graph of y=4x+7. y-4x=9 4x-y=8 . 4y-x=8 8x-2y=8
DENIUS [597]

y = 4x + 7

This equation is in slope-intercept form, which is y = mx + b, where m is the slope and b is the y-intercept. The slope of this line is 4. Parallel lines have the same slope, thus a line not parallel to this line will not have a slope of 4. Let's check which of these lines does not have a slope of 4.

y - 4x = 9

y = 9 + 4x (add 4x to both sides)

y = 4x + 9 (switch the constant and x-term)

This line has a slope of 4.

4x - y = 8

-y = 8 - 4x (subtract 4x from both sides)

y = -8 + 4x (divide both sides by -1)

y = 4x - 8 (switch the constant and x-term)

This line has a slope of 4.

4y - x = 8

4y = 8 + x (add x to both sides)

y = 8/4 + x/4 (divide both sides by 4)

y = x/4 + 2 (simplify and switch constant and x-term)

This line has a slope of 1/4. It is thus not parallel to the line y = 4x + 7.

Answer:

4y - x = 8

5 0
3 years ago
Which point represents an approximate solution to this system of equations?
joja [24]
The answer is D. (2.9,-22.8)
5 0
3 years ago
Read 2 more answers
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