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3 years ago

Some one pls help need soon

Mathematics

1 answer:

pav-90 [236]3 years ago

8 0

Answer:

1. $-3x^{2} +6x+4$

2. $3x^{2} -19x-14$

Step-by-step explanation:

1. Just subtract them. (To subtract easier, ignore the variables and subtract regularly. When you're done go back and put the variables back in)

2. Foil

$(3x +2)(x-7)$

$3x^{2} -21x+2x-14\\3x^{2} -19x-14$

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Deffense [45]

Answer:

Step-by-step explanation:

Not positive tho sorry

4 0

3 years ago

What is the slope of the blue line? what is the slope of the green line?

Ymorist [56]

Answer:

Blue Line’s Slope: -4/2

Green Line’s Slope: -4/2

Step-by-step explanation:

The slope of the line is the rise over run, or in this case the fall over run.

<h2><u>Hope This Helped!</u></h2>

4 0

3 years ago

What is the answer to 2-(y+2)=3y and it being simplified

salantis [7]

2-y-2=3y
-y=3y
0=4y
So y=0

4 0

3 years ago

Complete the following proof. Given: Points R, S, T, Q on circle O Prove: m\overarc RS + m\overarc ST + m\overarc TQ + m\overarc

LekaFEV [45]

Answer:

360°

Step-by-step explanation:

From the figure attached,

R, S, T and Q are the points on a circle O.

Since, "measure of an arc of a circle is equal to the measure of the angle subtended by the arc at the center."

By this statement,

$m(\widehat{RS})=m(\angle ROS)$

$m(\widehat{ST})=m(\angle SOT)$

$m(\widehat{TQ})=m(\angle TOQ)$

m(major arc RQ) = m(∠QOR)

Now $m(\widehat {RS})+m(\widehat{ST})+m(\widehat{TQ})$ + m(major arc RQ) = $m(\angle ROS)+m(\angle SOT)+m(\angle TOQ)+m(\angle QOR)$

Since sum of all angles at a point = 360°

$m(\widehat {RS})+m(\widehat{ST})+m(\widehat{TQ})$ + m(major arc RQ) = 360°

4 0

3 years ago

Length of a rectangular prism is increased by factor of 1.5. The width is doubled and height is tripled. What is the new volume?

Alenkasestr [34]

The new volume is Nine time the original volume

Step-by-step explanation:

Let the length be 'l'

Let the height be 'h'

Let the width be 'w'

Volume of a rectangular prism= l x w x h

New length = 1.5l

New width = 2w

New height= 3h

New volume= (1.5l) x (2w) x (3h)

= 9 (l x w x h)

New volume= 9 ( original volume)

The new volume is 9 time the original volume

6 0

3 years ago