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Komok [63]
4 years ago
7

Factor completly: x^2-2x-24

Mathematics
2 answers:
lions [1.4K]4 years ago
8 0

Answer:

(x+4)(x−6)

Step-by-step explanation:

Factoring x2−2x−24

x2−2x−24

The middle number is -2 and the last number is -24.

Factoring means we want something like

(x+_)(x+_)

Which numbers go in the blanks?

We need two numbers that...

Add together to get -2

Multiply together to get -24

Can you think of the two numbers?

Try 4 and -6:

4+-6 = -2

4*-6 = -24

Fill in the blanks in

(x+_)(x+_)

with 4 and -6 to get...

(x+4)(x-6)

melisa1 [442]4 years ago
4 0
<span>x^2-2x-24 = (x - 6)(x + 4)

cause
</span>(x - 6)(x + 4)
= x^2 - 6x + 4x - 24
= x^2 - 2x - 24

answer
(x - 6)(x + 4)

hope it helps
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attashe74 [19]

Answer:

3/4y +5/3 = x

Step-by-step explanation:

y = 4(3x-5)/9

Multiply each side by 9

9y = 4(3x-5)/9*9

9y = 4(3x-5)

Divide each side by 4

9/4 y = 4/4 (3x-5)

9/4y = 3x-5

Add 5 to each side

9/4y +5 = 3x-5+5

9/4y +5 = 3x

Divide by 3

9/4 y *1/3 +5/3 = 3x/3

3/4y +5/3 = x

8 0
3 years ago
Miguel has a painting that is 4 inches wide by 2 feet long. He made an enlarged copy of it. The enlarged copy is 1 foot wide. Wh
ahrayia [7]

The length of the enlarged copy in feet is 2.7 feet.

<u>Step-by-step explanation</u>:

  • The painting is 4 inches wide and 2 feet long.
  • convert inches into feet (1 inch=0.083 foot). Therefore, 4 inches=0.3 feet
  • The enlarged copy is 1 foot wide and 'x' feet long.

The width is enlarged from 0.3 to 1 which is increased by 0.7 feet.

∴ The length should also be increased by 0.7 feet = 2+0.7 = 2.7 feet

8 0
3 years ago
What is the value of x​
Artemon [7]

Answer:

45 degrees

Step-by-step explanation:

Angles on a straight line add up to 180 degrees.

Thus, x+3x=180

4x=180

Divide both sides by 4:

\frac{4x}{x} =\frac{180}{4}

x=45

4 0
4 years ago
Joel has 24 sports trophies. Of the trophies, 1/8 are soccer trophies. How many soccer trophies does Joel have.
Nikitich [7]
24 divided by 8 equals 3, so Joel has 3 soccer trophies.
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3 years ago
What is the slope for (-2,1) and (7,1)
Nastasia [14]

Answer:

m=0

Step-by-step explanation:

the slope (m) can be calculated from two points with the formula (y2-y1)/(x2-x1)

we are given the points (-2,1) and (7,1)

label the points:

x1=-2

y1=1

x2=7

y2=1

now substitute into the equation

m=(1-1)/(7--2)

m=0/9

m=0

the slope of the line is 0

Hope this helps!

5 0
3 years ago
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