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3 years ago

15 POINTS IF YOU TRY!!

Mathematics

1 answer:

Pie3 years ago

8 0

1.definition of parallel lines
2.angles of congruency
3. supplementary lines are congruent

I was only able to figure out the first 3, but I hope this helped a little bit :)

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This is my question. If Andy drove 840 miles in 12 hours. How far could he drive in hours? Help me?

stellarik [79]

Answer:

840mi. - 12 hrs

x - 3 hrs

This is a simple cross multiplying problem.

840 _ 12

x -- 3 ⇒12x=3(840) ⇒ 4x=280 ⇒ x=70 miles

Step-by-step explanation:

7 0

3 years ago

The midpoint of ab is M (-6,1 ). if the coordinates of A are (-7,-3 ),what are the coordinates of B

Scrat [10]

Answer:

B(-5,5).

Step-by-step explanation:

It is given that midpoint of AB is M (-6,1).

Coordinates of A are (-7,-3 ).

We need to find the coordinates of point B.

Let coordinates of point B are (a,b).

$Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

Midpoint of AB is

$Midpoint=\left(\dfrac{-7+a}{2},\dfrac{-3+b}{2}\right)$

$(-6,1)=\left(\dfrac{-7+a}{2},\dfrac{-3+b}{2}\right)$

On comparing both sides, we get

$\dfrac{-7+a}{2}=-6$

$-7+a=-12$

$a=-12+7$

$a=-5$

$\dfrac{-3+b}{2}=1$

$-3+b=2$

$b=2+3$

$b=5$

Therefore, the coordinates of B are (-5,5).

6 0

3 years ago

Can someone pls help me with this last question ASAP

hichkok12 [17]

Answer:

your answer will be <u>0</u>

Step-by-step explanation:

$y=ax^{2} +bx +29\\$

axis of symmetry

$x=\frac{-b}{2b}$ when b=0

$x\frac{0}{2b}= 0$

hope it helps :)

have a nice weekend!!!

8 0

2 years ago

Read 2 more answers

Which angle(s) is/are supplementary?

tatiyna

Answer:

Two Angles that add up to 180

Step-by-step explanation:

90 degrees+ 90 degrees= 180 degrees

160degrees+ 20 degrees= 180 degrees

Hope this helps!

4 0

3 years ago

A recipe for muffins calls for 3⁄5 of a cup of sugar and 4 cups of flour. If you want to make a bigger batch, using 5 cups of fl

Wittaler [7]

Answer:

Step-by-step explanation:

3 0

3 years ago