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3 years ago

Disregard anything that is already answered I was guessing. I really need help.

Mathematics

1 answer:

iris [78.8K]3 years ago

6 0

i tjibk ut would be anthung weit wgat us thrs

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Solve the equation 4c^2+7c-5=0 using the quadratic formula.

solmaris [256]

$c = \frac{-7+\sqrt{129} }{8} ,\frac{-77-\sqrt{129} }{8}$

5 0

3 years ago

Which of the following is a factor of 7x2 - 12x - 4? (6 points)

grin007 [14]

Answer:

We conclude that 'None of the above' is the correct answer.

Step-by-step explanation:

Given the expression

$7x^2\:-\:12x\:-\:4$

Breaking the expression into groups

$7x^2\:-\:12x\:-\:4=\left(7x^2+2x\right)+\left(-14x-4\right)$

Factor out $x$ from $7x^2\:+\:2x$

$=x\left(7x+2\right)$

Factor out -2 from $\left(-14x-4\right)$

$=-2\left(7x+2\right)$

so the expression becomes

$7x^2\:-\:12x\:-\:4=\left(7x^2+2x\right)+\left(-14x-4\right)$

$=x\left(7x+2\right)-2\left(7x+2\right)$

Factor out the common term $7x+2$

$=\left(7x+2\right)\left(x-2\right)$

Therefore, from the given options, we conclude that 'None of the above' is the correct answer.

4 0

2 years ago

what is the difference between the highest elevation in Alabama and the lowest elevation in Louisiana

tester [92]

Answer:

the difference is 2,415 feet.

Step-by-step explanation:

5 0

2 years ago

4.) A store is having a sale in which all items are marked 30% off.

bezimeni [28]

Answer:

0.70p

Step-by-step explanation:

"30% off" means paying only 70% of the original sales price (subtracting 30% from 100% yields 70%). Next, find the decimal equivalent of 70%:

It is 0.70. Finally, multiply the price p by 0.70: 0.70p (Answer b)

8 0

2 years ago

Read 2 more answers

A soccer field is a rectangle 90 meters wide and 120 meters long. The coach asks players to run from one corner to the other cor

Arturiano [62]

Answer:

150

Step-by-step explanation:

If you draw a diagram, this will be a rectangle and the line across cuts it into a right triangle, with a base of 120 and a height of 90. The need to know the length of the hypotenuse of the triangle, so we can use the pythagorean theorem.

90^2 + 120^2 = c^2

c=150

5 0

3 years ago