What is the solution set for the equation 4x^2+11x-10=-7

Mathematics

1 answer:

KengaRu [80]3 years ago

6 0

It's C I looked it up for you I promise it's right :D

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Please help ASAP! Ill mark brainliest if correct

mote1985 [20]

13 cm also make sure i get my brainliest >:(

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3 years ago

Read 2 more answers

If the total area of a picture measuring 10 inches by 12 inches plus a matting of uniform width surrounding the picture is 224 s

ELEN [110]

Let
x-----------> <span>uniform width surrounding the picture

we know that
(10+2x)*(12+2x)=224-----> 120+20x+24x+4x</span>²=224
4x²+44x+120-224=0
4x²+44x-104=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solution is
x=2 in

the answer is
2 inches

4 0

3 years ago

Which method is best using this equation 4x-2y=-2,-5x+6y=-15 and why

kipiarov [429]

I think that using the elimination method is the best, because it is the only method that I use when solving these types of equation. For example, for these two equations, you need to multiply one of the equations by a certain number so that you'd be able to find x and y. The elimination method is the method that tells you to do that. It is also the easiest method.

~Hope I helped!~

8 0

4 years ago

Given f(x)=2x^3-3x and g(x)=-3x^2+1, what is the value of h(3) where h(x)=(f+g)(x)?

Mamont248 [21]

Answer:

h(3) = 73

Step-by-step explanation:

The function $h(x) = f(x) + g(x) = 2x^3 -3x +3x^2 +1 = 2x^3 +3 x^2 -3x+1$

Now since you need to find the value of this new function at the point x=3, replace x by "3" in the expression above and perform the calculation:

$h(3) = 2(3)^3 +3 (3)^2 -3(3)+1=73$

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3 years ago

Estimate √92 to the nearest integer.

Art [367]

Answer: 10

Step-by-step explanation:

This is because if it was 9, then 9^2 would be 81 and 10^2 would be 100. 81 is 11 numbers a way from 92, while 100 is 8 numbers from 92, making 10 the <u>closest</u> estimate.

7 0

4 years ago