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igomit [66]
3 years ago
8

Solve the following systems mathematically using substitution -4x-3y=12y=2x-14

Mathematics
1 answer:
miv72 [106K]3 years ago
6 0

Answer:

(3,-8)

Step-by-step explanation:

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The table shows the relationship between a, the area of a rectangle, and h, its height, when the base remains constant.
nadezda [96]
A=4h BECAUSEE 2 times 4 is 8 and 5 times 4 is 20 caught the pattern yet? it's multiplying
3 0
3 years ago
For a project in his Geometry class, Mamadou uses a mirror on the ground to measure the height of his school's football goalpost
andreev551 [17]

Answer:

Height of the goalpost is 9.25 m.

Step-by-step explanation:

As per the rule of reflection in physics,

Angle of incidence = Angle of reflection

As we can see in the picture attached, both the angles (θ) are equal.

m∠ACB = m∠ECD = 90° - θ

m∠ABC = m∠ADC = 90°

Therefore, both the triangles ΔABC and ΔEDC will be similar.

And by the property of similar triangles, their corresponding sides will be proportional.

\frac{AB}{ED}= \frac{CB}{CD}

\frac{1.75}{ED}=\frac{2.6}{13.75}

ED = \frac{1.75\times 13.75}{2.6}

ED = 9.25 m

Height of the goalpost is 9.25 m.

4 0
2 years ago
What is the additive inverse of the polynomial -7y^2x^2y-3xy-7x^2
ANEK [815]

Answer:

Answer: 7y²-x²y+3xy+7x²

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
Please help!!!!!!!!!!!!!!!!!!!!!!!!!!
Triss [41]

Answer:

The Blue box is your answer

Step-by-step explanation:

Multiply 4, 8, and 7 and you get 224. The problem states that it should not be over 250, and 224 is not over 250. So the blue box is your best go.

5 0
2 years ago
Will someone just correct this for me IT EXTRA CREDIT FOR ME
cestrela7 [59]

Answer:

6sqrt(3)

Step-by-step explanation:

Think of the square root  like a variable

sqrt(3) *5 + sqrt(3)

Factor it out

sqrt(3)(5+1)

sqrt(3) (6)

6sqrt(3)

8 0
3 years ago
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