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Vedmedyk [2.9K]
2 years ago
6

Find the value of each expres 1. (-3)(-2) + 8

Mathematics
1 answer:
Harrizon [31]2 years ago
8 0

Answer:

The value of expression, (-3)(-2)+8, is 14.

Step-by-step explanation:

Step 1: First multiply (-3) and (-2), and you will get positive 6. Now your expression will look like this, 6+8.

Step 2: Now add 6 and 8 to get 14.

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Divide (x^3+2x^2-x-2) by (x-1)
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\frac{x^3+2x^2-x-2}{(x-1)} =x^2+3x+2 \\  \\ x^3+2x^2-x-2= \\= x^2(x+2)-(x+2) \\ =(x+2)(x^2-1)=(x+2)(x-1)(x+1) \\  \\  \frac{x^3+2x^2-x-2}{(x-1)}  = \frac{(x+2)(x-1)(x+1)}{x-1} =(x+2)(x+1)=x^2+3x+2
7 0
3 years ago
Lalasa and yasmin are designing a triangular banner to hang in the school gymnasiums. They first draw the design on paper. The t
jasenka [17]
<span>The triangle on paper is 5 inches wide by 7 inches high.</span><span>
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If 1 inch on paper is equal to 1.5 feet on paper, then you need to multiply all dimensions by 18 because 1.5 feet is equal to 18 inches and you are getting 18 inches on the real banner for every inch on the paper banner. </span><span>

5 * 18 = 90 inches from the base of the rear triangle.</span><span>
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</span><span>The area of the paper triangle will be 5 * 7 / 2 = 35/2 square inches.</span><span>
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regarding feet: 

The base of the real banner will be 125/12 = 10.41666666....... feet.</span><span>
the height of the real banner will be 90 / 12 = 7.5 feet.</span><span>
the area of the real banner will be 5625 / 12^1 = 5625 / 144 = 39.0625 square feet.</span><span>
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3 0
3 years ago
Solve using substitution or elimination.<br><br> y = x + 1<br> 2x - 5y = 4
andrew-mc [135]

Substitute y = x + 1 into 2x - 5y = 4

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y = -2

Therefore,

<u>x = -3</u>

<u>y = -2</u>

5 0
3 years ago
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kap26 [50]
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4 0
3 years ago
Mrs brown wants to cook 5 dishes on a stove with 2 burners. The times she needs to cook each dish are 40min,15min,35min,10min an
Sphinxa [80]

Answer:

75 minutes

Step-by-step explanation:

First cook 40 and 45 min dishes on separate burners. Then after 40 min put 35 min dish to be cooked on that burner. This will take 75 minutes time.

On second burner put firstly 15 min and then 10 min dish or vice versa as it doesn't matter. This second burner will take 70 minutes which is less then first one.

8 0
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