can anyone solve 4x^2 + 12x - 40 ? you would have to find what multiplies to get -40 but adds to get 12, but you do something with th 4x^2 as well

Answers

Answer 1

Answer:
There's really nothing to solve, since there's no equation there.
Perhaps you want that expression factored. We can do that.

First, all 3 terms share a common factor of 4. Let's pull that out,
and see what's left to be factored:

4x² + 12x - 40 = 4 (x² + 3x - 10) .

Now, the expression left inside the parentheses looks
like it might be a lot easier to handle.

Here's what the whole expression looks like after the
quadratic inside the parentheses is factored:

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

There it is. Understand ... we haven't changed anything,
and we haven't solved anything. We only wrote the original
expression in a different form. It's still just an expression that
stands for a number, and we won't know the number until
somebody tells us the value of 'x' .

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Answers

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Find the perimeter of a square of side 11cm

Answers

Answer:

Step-by-step explanation:

perimeter of square = 4*side

=4*11

=44

ANSWER:
SIDE OF SQUARE=11cm
FORMULA FOR PERIMETER=4 x s i.e.4 multiplied by the side.
PERIMETER =4 x 11
=44cm
HOPE IT HELPS!!!!

Yvette is trying to calculate the distance between point C(1, 2) and point D(7, 10). Which of the following expressions will she use?

Answers

For the answer to the question above, this can be solve using the distance formula: D = sqrt [ (x2 – x1)^2 + (y2 – y1)^2] So the expression she should use is: D = sqrt [ (7 – 1)^2 + (10 – 2)^2] Then the answer would be: D = sqrt [ (6)^2 + (8)^2] D = 10 I hope my answer helped you.

Which of the following best describes the base of a pyramid?A. It can be any polygon.
B. It is a circle.
C. It must be a square.
D. It is a triangle.

Answers

Answer:

A. It can be any polygon.

Step-by-step explanation:

A pyramid is a polyhedron with a base, which can be any polygon, but is most often a square.

When the base is a triangle, the pyramid has a total of four faces.

The famous Egyptian pyramids have square bases and four triangular faces. As the number of sides increases in a pyramid, it begins to look like a cone.

So, we can say A and C are both correct. But we will go with A as a square will also be considered in it.

A dance student wants to know the favorite type of dance class for students at The Dance Academy. She surveys each student in her ballet class. In which way could the results of her survey be most improved?

Answers

Since you have not presented any choices wherein we can determine the best answer, I will go on and share my thoughts on how she could improve the results of her survey.

Since she just surveyed her ballet class, she should opt for surveying on other classes with other genres. This would entail reliability and validity and eliminate bias about the results.

Answer:

A) She could sample an equal number of students in each type of dance class.

B) She could sample a proportional number of students in each type of dance class.

C) She could sample one student in each type of dance class.

D) She could sample one teacher from each type of dance class.

-3(10+4v)=-6(5-9v)

step-by-step pls

Answers

Answer:

Step-by-step explanation:

Let's solve your equation step-by-step.

−3(10+4v)=−6(5−9v)

Step 1: Simplify both sides of the equation.

−3(10+4v)=−6(5−9v)

(−3)(10)+(−3)(4v)=(−6)(5)+(−6)(−9v)(Distribute)

−30+−12v=−30+54v

−12v−30=54v−30

Step 2: Subtract 54v from both sides.

−12v−30−54v=54v−30−54v

−66v−30=−30

Step 3: Add 30 to both sides.

−66v−30+30=−30+30

−66v=0

Step 4: Divide both sides by -66.

−66v

−66

v=0

Answer:

omg im so sorry

Step-by-step explanation:

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