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victus00 [196]
3 years ago
6

Which sum of difference is modeled by the algebra titles?help.​

Mathematics
1 answer:
GREYUIT [131]3 years ago
3 0

Answer:

it is A

Step-by-step explanation:the red color is to subtract or negative value and the blue one is for addition or positive value

-x^2-2x+4 the first row

-(x^2+2x+1) for  the second row or (-x^2-2x-1) is the same

put it together

-2x^2-4x+3

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Need help question #3. Show steps please
Oksana_A [137]

Answer:

B.

Step-by-step explanation:

We are given:

\displaystyle \int \sqrt{x}\Big(9x^3-2\sqrt{x}+\frac{8}{x}\Big)\, dx

And we want to select its equivalent form.

Note that A is not valid. No integration property allows us to separate factors unless that factor is a constant.

We can simply rewrite and then distribute. First, by rewriting:

\displaystyle =\int x^{1/2}\Big(9x^3-2x^{1/2}+8x^{-1}\Big)\, dx

Distribute. Recall exponent properties;

\displaystyle =\int(9x^{3+1/2}-2x^{1/2+1/2}+8x^{-1+1/2})\, dx

Simplify:

\displaystyle=\int9x^{7/2}-2x+8x^{1/2}\, dx

This can then be separated (since its addition/subtraction) and integrated individually.

Hence, our answer is B.

8 0
3 years ago
Suppose p represents the amount of air pressure in a tire and t, the time it takes for the tire to go flat, equals −8. What is t
VLD [36.1K]

Answer:

  32

Step-by-step explanation:

You want to find p for ...

  p/(-8) = -4

Multiply by -8.

  p = (-8)*(-4) = 32

The value of p is 32.

6 0
4 years ago
Read 2 more answers
Two boards are 26 meters long altogether. One board is 8 meters long. How long is the other board?
Aleonysh [2.5K]
I think the answer is 18 because together, they are 26 meters and one is 8 so u have to subtract the total with 8 which is 26-8. the answer to that would be 18.
ANSWER: 18 meters
6 0
3 years ago
Read 2 more answers
)Consider the following pair of equations: y = −2x + 8 y = x − 1 Explain how you will solve the pair of equations by substitutio
Ira Lisetskai [31]

Hi there,

Take y from first equation and use it / substitute it into the second equation:

-2x + 8 = x - 1, so 3x = 9, therefore x = 3.

Then y = x - 1 = 3 - 1 => y = 2.

Solution is (3,2).

A quick check: 2 = -2*3 + 8, true, and 3 = 2 - 1, also true.

Green eyes.

5 0
3 years ago
Can i please get help with these
Kryger [21]

Answer:

7. x=3, 8. x=7, 9. x=15.

Step-by-step explanation:

7. If lines m and n are congruent, then angles DCF and CFE are congruent. 15x+3=18x-6. Solve for x. --> 15x+9=18x-->3x=9-->x=3

8.If line m is parallel to line n, then the corresponding angles are congruent. So, 20x+1=22x-13 Solve for x. 20x+14=22x-->14=2x-->x=7.

9. The supplementary angle of 110 is 70. Note that all of the inner angles of a triangle are equal to 180. Form an equation using the the values: (4x+8)+(2x+12)+70=180. Simplify; 6x+90=180. Solve for x: 6x+90=180-->6x=90-->x=15.

Hope this helps!

8 0
3 years ago
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