2 years ago

Select the two binomials that are factors of this trinomial.

Mathematics

1 answer:

Alina [70]2 years ago

8 0

Answer:

(x-5) (x+4)

Step-by-step explanation:

x^2 - X-20

Factor

What two numbers multiply to -20 and add to -1

-5*4 = -20

-5+4 = -1

(x-5) (x+4)

You might be interested in

A salesperson sells $2100 in merchandise and earns a commission of $273, What is the commission rate?

larisa86 [58]

if we take 2100 to be the 100%, what is 273 off of it in percentage?

$\begin{array}{ccll} amount&\%\\ \cline{1-2} 2100 & 100\\ 273& x \end{array} \implies \cfrac{2100}{273}=\cfrac{100}{x}\implies \cfrac{100}{13}=\cfrac{100}{x} \\\\\\ 100x=1300\implies x=\cfrac{1300}{100}\implies x=13$

3 0

1 year ago

How many solutions exist for the given equation? StartFraction one-half left-parenthesis x plus 12 right-parenthesis equals 4 x

Firlakuza [10]

Answer:

One solution x = 2

Step-by-step explanation:

Given the equation:

$\dfrac{1}{2}(x+12)=4x-1$

Multiply this equation by 2:

$2\cdot \dfrac{1}{2}(x+12)=2\cdot (4x-1)\\ \\x+12=2(4x-1)$

Use distributive property:

$x+12=8x-2$

Combine the like terms:

$x+12=8x-2\\ \\x+12-12=8x-2-12\\ \\x=8x-14\\ \\x-8x=8x-14-8x\\ \\-7x=-14\\ \\7x=14\\ \\x=2$

Thus, this equation has one solution x = 2

7 0

2 years ago

Read 3 more answers

5 • 10^5 is how many times as large as 1 • 10^5

damaskus [11]

Answer:

5 times larger

Step-by-step explanation:

5*10^5 = 500,000

1*10^5 = 100,000

500,000/100,000 = 5

3 0

2 years ago

What is the height, x, of the equilateral triangle shown?

Mamont248 [21]

Answer:

Step-by-step explanation:

Drop an altitude. Either of the two resulting right triangles with legs of length 5 and x and a hypotenuse of 10.

By the Pythagorean theorem, it follows that the answer is B.

6 0

1 year ago

Round to the nearest hundredth.<br> 29.995

Nastasia [14]

Answer:

30.00

Step-by-step explanation:

Hope this helps!

5 0

2 years ago

Read 2 more answers