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anyanavicka [17]
3 years ago
11

Please help due in 5 minutes

Mathematics
1 answer:
alukav5142 [94]3 years ago
3 0
Add y subtract 6. Ur left with y=x-6
Add the equations and ur left with 2x-10
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Please need help thank you
valentinak56 [21]
Might be 1? Because it is 100 each
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3 years ago
Which triangle is a rotation of triangle 3?<br><br><br><br> Δ1<br> Δ2<br> Δ3<br> Δ4
nikdorinn [45]

Answer:

1

Step-by-step explanation:

6 0
2 years ago
For the following system, if you isolated x in the first equation to use the substitution method, what expression would you subs
Musya8 [376]

Answer:

x = 2y + 6

Step-by-step explanation:

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2 years ago
Are AB and CD parallel, perpendicular, or neither?*<br> 1. A(-4, 8), B(4, 10), C(1, 1), D(-2, 13)
ohaa [14]

Answer:

Perpendicular

<em />

Step-by-step explanation:

Given

A = (-4, 8)

B = (4, 10)

C = (1, 1)

D = (-2, 13)

Required

Is AB and CD parallel?

First, we need to calculate the slope (m) of AB and CD

m = \frac{y_2 - y_1}{x_2 - x_1}

For AB:

A (x_1,y_1)= (-4, 8)

B(x_2,y_2) = (4, 10)

So:

m = \frac{y_2 - y_1}{x_2 - x_1}

m = \frac{10 - 8}{4 - (-4)}

m = \frac{10 - 8}{4 +4}

m = \frac{2}{8}

m = \frac{1}{4}

For CD:

C(x_1,y_1) = (1, 1)

D(x_2,y_2) = (-2, 13)

So:

m = \frac{y_2 - y_1}{x_2 - x_1}

m = \frac{13 - 1}{-2 - 1}

m = \frac{12}{-3}

m = -4

For Lines to be parallel, the slope must be equal:

i.e. m_1 = m_2

This condition is not true because:

\frac{1}{4} \neq -4

For Lines to be perpendicular, the slope must be:

m_1 = -\frac{1}{m_2}

This implies:

\frac{1}{4} = -\frac{1}{-4}

\frac{1}{4} = \frac{-1}{-4}

\frac{1}{4} = \frac{1}{4}

<em>Hence, the lines are perpendicular</em>

6 0
3 years ago
A student has scores of 64, 62, and 72 on his first three tests. He needs an average of at least 70
kotegsom [21]

Answer:

73 or more

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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