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Alex787 [66]
2 years ago
12

HELP ME! I can't estimate!

Mathematics
1 answer:
klasskru [66]2 years ago
4 0

Answer: -144.1226

Step-by-step explanation:

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22 gallons of gas cost $65.56 what is the unit rate for one gallon of gas
Kitty [74]
Hey there!

If we would want to find out what it would be, we would have to divide it.

Your correct answer would be (2.98)

I did 65.56/22.

Hope this helps you!
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2 years ago
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I bombed this test plz help.
Eddi Din [679]

Step-by-step explanation:

a = -52 - b / 4

b = -52 - 4a

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5 0
3 years ago
Complete the steps to solve the polynomial equation x3 – 21x = –20. According to the rational root theorem, which number is a po
jeka94

Answer:

Zeroes : 1, 4 and -5.

Potential roots: \pm 1, \pm 2, \pm 4, \pm 5, \pm 10, \pm 20.

Step-by-step explanation:

The given equation is

x^3-21x=-20

It can be written as

x^3+0x^2-21x+20=0

Splitting the middle terms, we get

x^3-x^2+x^2-x-20x+20=0

x^2(x-1)+x(x-1)-20(x-1)=0

(x-1)(x^2+x-20)=0

Splitting the middle terms, we get

(x-1)(x^2+5x-4x-20)=0

(x-1)(x(x+5)-4(x+5))=0

(x-1)(x+5)(x-4)=0

Using zero product property, we get

x-1=0\Rightarrow x=1

x-4=0\Rightarrow x=4

x+5=0\Rightarrow x=-5

Therefore, the zeroes of the equation are 1, 4 and -5.

According to rational root theorem, the potential root of the polynomial are

x=\dfrac{\text{Factor of constant}}{\text{Factor of leading coefficient}}

Constant = 20

Factors of constant ±1, ±2, ±4, ±5, ±10, ±20.

Leading coefficient= 1

Factors of leading coefficient ±1.

Therefore, the potential root of the polynomial are \pm 1, \pm 2, \pm 4, \pm 5, \pm 10, \pm 20.

3 0
3 years ago
SOMEONE HELP ME PLSSS!
Tomtit [17]

Answer:

y is 1 and x is 4

Step-by-step explanation:

becasue the y intercepts at 1 and the x intercepts at 4

8 0
2 years ago
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Find the area of the circle. Leave your answers in terms of pi.
Savatey [412]

Answer:

49pi m^2

Step-by-step explanation:

Area of circle=pi r^2

D=2r=14

r=7

Area of circle =7^2pi=49pim^2

3 0
2 years ago
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