All categories

3 years ago

Factor this polynomial.

Mathematics

1 answer:

olga55 [171]3 years ago

7 0

Answer:

Hey there!

The correct answer is A.

If you multiply it out with the FOIL method, you get -2x^2-7x-3

Let me know if this helps :)

You might be interested in

Anyone know how to solve these

natulia [17]

Answer:

1: 64π

2: 49π and 153.86

Step-by-step explanation:

For the first one we know that it has a diameter of 16 which means it has a radius of 8 (half the diameter)

To find the area of a circle use the following formula

π*r² where r is the radius

This means that the first answer is π*8^2

which is 64π

For the second one it's the same deal but the radius is 7

so the answer is 49π

8 0

3 years ago

A car has a gas tank that holds 12.5 U.S. gal. Using the conversion factors from the inside front cover, (a) determine the size

ehidna [41]

Answer:

a) 2891.012 $in^{3}$

b) 0.496 $cubits^{3}$

Step-by-step explanation:

We know 1 US gallon = 3.79 L

Also

1L =61.024 $in^{3}$

and given 1 cubit - 18 in

a) gas tank = 12.5 Us gal. = 12.5×3.79 = 47.375L=47.375×61.024= 2891.012 $in^{3}$

b) as 1 cubit =18 inches

18 inches = 1 cubit

==> 1 inch = 1/18 cubit =0. 055555556 cubit

Taking cube on both sides;

==> $1 inch^{3}= 0.055555556^{3} cubits ^{3}$

$1 inch^{3}= 0.055555556$ ×0.055555556×0.055555556=0.000171468 $cubits^{3}$

so size of gas tank = 2891.012×0.000171468=0.495715375=0.496 $cubits^{3}$

4 0

3 years ago

Que frações equivalentes a 3/4 tem denominador 65

LuckyWell [14K]

Dada fração: 3/4

Necessidade de converter o denominador em 65.

Vamos supor que x deve estar no numerador (topo) das frações para obter 65 no denominador (abaixo) para obter a fração equivalente de 3/4.

Vamos definir uma atribuição.

$\frac{3}{4}=\frac{x}{65}$

Deixe-nos resolvê-lo por x agora.

Na multiplicação cruzada, obtemos

4x = 195.

Dividindo ambos os lados por 4, obtemos

x = 48.75

Assim, podemos fazer uma fração equivalente de 3/4, colocando 48.75 no topo do denominador 65.

Então, temos $\frac{48.75}{68}$

7 0

3 years ago

This year the winner of the New York marathon Grand the 8, Trenton 24 minutes what is the runners unit rate

Simora [160]

speed = distance/time

speed = 8/24 = 1/3 km per minute

4 0

4 years ago

Write -2x 2(-5x 2 4x 3) in standard form.

NeTakaya

Hello,

Do you hate the sign "++++++++++++++++++++++++++++" ?

Answer B

-2x²(-5x²+4x^3)=10x^4-8x^5= -8x^5+10x^4
++++++++++++++++++++++++++++++++++++++++++++++++++

5 0

3 years ago