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Flauer [41]
3 years ago
5

Simplify (3w^2-7w+6)+(-5w^2+2w+1)

Mathematics
1 answer:
leva [86]3 years ago
5 0

Answer:

-2w^2 - 5w + 7

Step-by-step explanation:

Just the values with the same powers of w

(3w^2-5w^2)+(-7w+2w)+(6+1)

-2w^2 - 5w + 7

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These triangles ARE similar! Which reason proves it?
andrew-mc [135]

Answer:

SAS

Step-by-step explanation:

From the image attached below, in triangle ABC, AB = 15, AC = 20 while in triangle ADE, AD = 12 and AE = 16

Two triangles are said to be similar if they have the same shape, that is either their corresponding angles are the same or their corresponding sides are proportional.

For both triangle ABC and triangle ADE, they have the same angle which is ∠A. Also:

\frac{AD}{AB}=\frac{12}{15}=\frac{4}{5}

\frac{AE}{AC}=\frac{16}{20}=\frac{4}{5}

Since two sides of triangle ABC are in the same proportion as two sides of triangle ADE and they have the same angle, therefore they are similar based on the SAS  (side-angle-side) similarity

4 0
3 years ago
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Vedmedyk [2.9K]

Step-by-step explanation:

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4 0
3 years ago
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Michelle is fishing from a small boat. A fish swimming at the same depth as the hook at the end of her fishing line is 16 meters
Rama09 [41]

Answer:

12 meters

Step-by-step explanation:

You have to use the inverse of the pythagorean theorem to do this so you do square root of (20x20-16x16) which is 12

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3 years ago
5.Footlocker buys Air Jordans for $30 a pair. They mark it up 75%. How much is the mark-up on a pair of Air Jordans
allochka39001 [22]

Answer:

$52.50

Step-by-step explanation:

What you do is you move the decimal two times to the left from 75%.

0.75*?=?

Take the orginal price and multiply ($30) by 0.75.

0.75*30= $22.50

Take 22.50 and add that to your original amount.

$22.50+$30= $52.50 or $52.5

4 0
3 years ago
My question is that fourty-one plus eighty-four equals what?
ivann1987 [24]

Answer:

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5 0
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