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lora16 [44]
3 years ago
11

Help and I'll help back

Mathematics
1 answer:
son4ous [18]3 years ago
3 0
8y^4 is the solution
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Determine the correct set up for solving the equation using the quadratic formula.
netineya [11]

Answer: B

Begin by simplifying the given equation, so it's rearranged into standard form. Move all the terms onto one side, so they equal 0. This would result with 4x^{2}-3x-9=0. Quadratic formula is (-b±√(b²-4ac))/(2a). Standard form follow this variable format: ax^{2}+bx+c. Use the numbers that correspond with each variable to substitute them into the quadratic formula. This would be

(-(-3)±√(-3²-4(4)(-9)/2(4).

5 0
3 years ago
Li’s family is saving money for their summer vacation. Their vacation savings account currently has a balance of $2,764. The fam
AysviL [449]

The amount of money the family still needs to save is $2236.

<h2>Linear system</h2>

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Given

Their vacation savings account currently has a balance of $2,764.

The family would like to have at least $5,000.

<h3>To find </h3>

The amount of money the family still needs to save.

<h3>How to find the amount of money the family still needs to save?</h3>

Forming the equation, we get

Let x be the amount needed to save. then

x + 2764 ≥ 5000

On simplifying, we get

x + 2764 ≥ 5000

            x ≥ 5000 - 2764

            x ≥ 2236

Thus, the amount of money the family still needs to save is $2236.

More about the linear system link is given below.

brainly.com/question/20379472

8 0
3 years ago
What is the expected value of X?
hram777 [196]

Multiply each X by its corresponding probability P, then add up them up.

E[X] = 3•0.2 + 4•0.1 + 5•0.25 + 7•0.05 + 9•0.4

⇒   E[X] = 6.2

5 0
2 years ago
If 3 3/4 pounds of candy cost $20.25, how much is 1 pound of candy
Nina [5.8K]
3 and 3/4lb=20.25
what you should do is divide both sides by 3 and 3/4 but that isnt nice

convert 3 and 3/4 to improper
3 and 3/4=3+3/4=12/4+3/4=15/4
15/4lb=20.25
times 4/15 to both sides (15/4 times 4/15=60/60=1)
1lb=81/15
1lb=5.4

answer is
1lb=$5.40
5 0
3 years ago
From Monday through​ Friday, Earl works in the bookstore on 2 days and in the tutoring center on another . On Saturday and​ Sund
Gennadij [26K]

Answer:

Earl would work 0.035%

Step-by-step explanation:

6 0
3 years ago
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