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2 years ago

Umm i need help bad my work is justtt not one of dem

Mathematics

1 answer:

AnnZ [28]2 years ago

4 0

Answer:

? = 8a

The other blank textbox = 35

Step-by-step explanation:

You are using the distributive property which means multiplying the number in front of the parentheses to the equation within the parentheses.

The number in-front is '8' for this equation.

The equation within the parentheses is ( a + 5 )

8 ( a + 5 )

You multiply the 8 to the equation in the parentheses.

8 * a

8 * 5

8 * a = 8a

8 * 5 = 40

So,

? = 8

The other blank equals 40

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abruzzese [7]

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3 years ago

I need help I'm not so good with geometry

cricket20 [7]

What's C and A mean?

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3 years ago

Jimmy Walked a total of 6 miles last week. This week, he walks 2 miles each hour. If he walks 6 hours this week, how many miles

arlik [135]

Answer:

18 miles

Step-by-step explanation:

Find how many miles he walked this week by multiplying 2 by 6:

2(6)

= 12

Add this to 6, since he walked 6 miles last week:

12 + 6

= 18

So, in all, he will have walked 18 miles

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3 years ago

Lydia graphed ADEF at the coordinates D (-2,-1), E (-2, 2), and F (0,0). She thinks ADEF is a right triangle. Is Lydia's asserti

Setler79 [48]

The true statement is (c) No; the slopes of segment EF and segment DF are not opposite reciprocals.

<h3>Right triangles </h3>

Right triangles have a pair of perpendicular lines

Coordinates

The coordinates are given as:

D = (-2,-1)
E = (-2,2)
F = (0,0)

<h3>Slopes</h3>

Start by calculating the slopes of lines DF and EF using:

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

So, we have:

$m_{DF} = \frac{0 + 1}{0 +2}$

$m_{DF} = \frac{1}{2}$

Also, we have:

$m_{EF} = \frac{0 -2 }{0+2}$

$m_{EF} = \frac{-2 }{2}$

$m_{EF} = -1$

For the triangle to be a right triangle, then the calculated slopes must be opposite reciprocals.

i.e.

$m_1 = -\frac{1}{m_2}$

By comparison, the slopes of both lines are not opposite reciprocals.

Hence, the true statement is (c)