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myrzilka [38]
4 years ago
9

How to solve -2x+2y=6 +4x+2y=-5 using elimination

Mathematics
1 answer:
MariettaO [177]4 years ago
5 0
7. {-5, -1, 3, 7, 11}<span>
8. 3
9. one solution
10. (2, -3)
11. 7=2x+3

</span>
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Question 13 10 pts Select the equation below that is perpendicular to the line with the equation y = 3x + 2 and goes through the
Grace [21]

Answer:

Perpendicular lines have opposite-reciprocal slopes, so the slope of the line we want to find is 1/2. Plugging in the point given into the equation y = 1/2x + b and solving for b, we get b = 6. Thus, the equation of the line is y = ½x + 6.

Step-by-step explanation:

5 0
3 years ago
Two plastic geometric models shaped like a triangular prism and a triangular pyramid are each 16 cm tall. The base of each model
yKpoI14uk [10]

Answer:

320 cm difference

Step-by-step explanation:

<h3>Volume for Triangular prism: (1/2)(b)(h)(H)</h3><h3>Volume for Triangluar pyramid: (1/3)(1/2)(b)(h)(H)</h3>

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6 0
3 years ago
Can you help me plz .
Scilla [17]
Solve for x:(2 x + 3)/3 - 1 = 10
Put each term in (2 x + 3)/3 - 1 over the common denominator 3: (2 x + 3)/3 - 1 = (2 x + 3)/3 - (3)/3:(2 x + 3)/3 - (3)/3 = 10
(2 x + 3)/3 - (3)/3 = ((2 x + 3) - 3)/3:(-3 + 3 + 2 x)/3 = 10
Add like terms. 3 - 3 = 0:(2 x)/3 = 10
Multiply both sides of (2 x)/3 = 10 by 3/2:(3×2 x)/(2×3) = (3×10)/2
(3×10)/2 = (3×10)/2:(3×2 x)/(2×3) = (3×10)/2
(3×2 x)/(2×3) = (2×3)/(2×3)×x = x:x = (3×10)/2
10/2 = (2×5)/2 = 5:x = 3×5
3×5 = 15:Answer:  x = 15
8 0
4 years ago
Can someone help me please??? :((
oksian1 [2.3K]

Answer:

25 months

Step-by-step explanation:

when the rent, y = 0, we have,

y = -200.22x + 5014.20

y = 0

0 = -200.22x + 5014.20

200.22x = 5014.20

x = 5014.20 ÷ 200.22

x = 25.0434

x = 25(appx.)

Sorry, I don't know what you mean by interpolation and extrapolation:(

3 0
3 years ago
The angle of depression from D to F measures 40°. If DE = 100 m, find DF
tino4ka555 [31]
The angle of depression from D to F measures 40°. If DE = 100 m, find DF. Round your answer to the nearest tenth.
3 0
3 years ago
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