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solniwko [45]
3 years ago
10

50 POINTS

Mathematics
2 answers:
egoroff_w [7]3 years ago
6 0

Answer:

D

Step-by-step explanation:

Factor x^2+2x-8

(x-2)(x+4) = 0

Solve for x

x = 2

x = -4

Paul [167]3 years ago
6 0

Given:

f(x)=\frac{x+2}{x^2+2x-8}

find the denominator:

x^2+2x-8

(x+4)(x-2) = y

Find the x value:

x-2=0\\x=2

x+4=0\\x=-4

Your answer would be D:

x = -4, 2

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Help due soon plss!!!!
Gelneren [198K]

Answer:

Cube=150cm^2

Triangular Prism=228ft^2

Step-by-step explanation:

Cube

A=6a^2=6*5^2=150cm^2

Triangular prism

Using these formulas

A=2A_{B}+(a+b+c)h\\A_{B} =\sqrt{s(s*a)(s*b)(s*c)} \\s=\frac{a+b+c}{2}

Solving for A

A=ah+bh+ch+\frac{1}{2} \sqrt{-a^4+2(ab)^2+2(ac)^2-b^4+2(bc)^2-c^4} \\=6.5*11+5*11+6.5*11+\frac{1}{2} *\sqrt{-6.5^4+2*(6.5*5)^2+2*(6.5*6.5)^2-5^4+2*(5*6.5)^2-6.5^4} \\=228ft^2

5 0
2 years ago
Can you help me with this it’s so confusing plz help me with both is this
mars1129 [50]

Answer:

First picture: -4,913

Second picture: 20.25

Step-by-step explanation:

-17^5/-17^2 = -17^3

-17 × -17 × -17 = -4913

4.5^5/4.5^3 = 4.5^2

4.5 × 4.5 = 20.25

Do you see how I had the same whole number on the top and bottom? (17 was on top and 17 was on bottom)

The exponents were those tiny numbers you saw.

Whenever you are dividing by the same whole number (-17/-17), you can subtract exponents.

When you multiply the same whole number, you can add the exponents.

Hope this helps! Best of luck :)

5 0
2 years ago
Find the commission on a $1,250 sale with a commission rate of 5%.
Nana76 [90]
Essentially, we must take 5% of $1250. When we drop the percent sign, we move the decimal 2 places to the left, giving .05. Then "of" means multiply. We take $1250 and multiply times .05, giving 
<span>$62..50 </span>

<span>Another way to do it is to take 10%, or $125. </span>
<span>Then 5% is half of that. Half of $125 is $62.50 We can do that by dividing $125 by 2. I did it in my head. Others might do it on paper. Still others might have a calculator handy and say $125 divided by 2 on the calculator. We should all get the same answer unless one person spaces out or is tired. It happens!</span>
5 0
3 years ago
Read 2 more answers
Construct a right angled triangle XYZ with 90 at angle Y, YZ=7.5cm and XY =6cm​
jeyben [28]

Answer:

1 draw a line of 7.5 cm YZ by scale

2 construct the 90 degree with the help of protecter

3 then cut arc of 6 cm on 90 degree of angle & mark as X

4 join X and Z by scale

6 0
2 years ago
How could Brent use a rectangle to model the factors of x2 – 7x + 6?
Crank
<span> He could draw a diagram of a rectangle with dimensions x – 1 and x – 6 and then show the area is equivalent to the sum of x2, –x, –6x, and 6.</span>
6 0
3 years ago
Read 2 more answers
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