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4 years ago

Please help me solve this for 15 points!

Mathematics

1 answer:

V125BC [204]4 years ago

4 0

Answer:

$-2(x^{2} +x+1)$

Step-by-step explanation:

Notice how there are 3 -2's. With this information, we can build our factorization. Start by placing a negative two on the outside of a pair of parentheses.

$-2()$

-2 times what equals $x^{2} ?$ -2 times $x^{2}$ does. Place the $x^{2}$ in the parentheses.

$-2(x^{2} )$

-2 times positive 1x = -2x, so place that in parentheses as well. Use a plus sign in the parentheses instead of a negative sign to show that the 2x is positive. (1x is equivalent to x)

$-2(x^{2} +x)$

Lastly, -2 times positive one is -2, so add that in as well. Make sure you use that plus sign to show the one is positive!

$-2(x^{2} +x+1)$

And your done!

Hope this helped! ~

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I need help with this

Aleksandr [31]

Answer:

3. m∠1 = 106° ~ this is because ∠1 and ∠2 together make a straight line and are therefore supplementary, meaning added together, they equal 180° (so I did 180° - 74° = 106°)

4. m∠3 = 74° ~ again, it is supplementary to ∠1. It is also equal to ∠2

5. m∠8 = 114° ~ angles opposite of each other (like 1 and 4) are equal (as we know from question 4). From there, we can use the corresponding angle theorem, so we know 4 and 8 are congruent. (also you can just know 1 and 8 are congruent by using the opposite exterior angles theorem)

6. m∠6 = 124° ~ using same-side interior angle theorem, they are supplementary angles (or the corresponding angles theorem mentioned above, make 4 congruent to 8, and 8 is supplementary to 6)

7. m∠7 = 96° ~ using same side exterior angle theorem, these angles are supplementary

8. m∠2 = 64° ~ again, same side exterior angle theorem

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2 years ago

Geometry, help ya girl out

Ber [7]

Answer:

4. 120 cm^2

5. 8x+30

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Which of the following would not be a possible function for f (x) and g(x) such that f of g of x is equal to 6 over the quantity

Aleonysh [2.5K]

Option C is correct. the functions that would not be a possible function for f (x) and g(x) are f(x) = $\frac{4}{x^2+2}$ and g(x) = x

Given the composite function

$f(g(x))=\frac{6}{x^2+3}$

We are to look for two functions f(x) and g(x) that will not give the same function

Using trial and error,

If f(x) = $\frac{4}{x^2+2}$ and g(x) = x

Determine the f(g(x)) for this function

f(g(x)) = f(x)

This is gotten by simply replacing x with x in f(x). This will return back the function f(x) making this the right choice.

f(g(x)) = $\frac{4}{x^2+2}$

Since, $\frac{4}{x^2+2}$ $\neq \frac{6}{x^2+3}$ , hence the functions that would not be a possible function for f (x) and g(x) are f(x) = $\frac{4}{x^2+2}$ and g(x) = x

Learn more here: brainly.com/question/3256461

7 0

3 years ago

Madison created two functions.

Degger [83]

Madison created two functions.For Function A, the value of y is two less than four times the value of x.

The table below represents Function B.
-3,-9
-1,5
1,-1
3,3

In comparing the rates of change, which statement about Function A and Function B is true?

A.

Function A and Function B have the same rate of change.
B.

Function A has a greater rate of change than Function B has.
C.

Function A and Function B both have negative rates of change.
D.

Function A has a negative rate of change and Function B has a positive rate of change.

C is correct

3 0

3 years ago

Read 2 more answers

What is the slope of a line parallel to the line whose equation is x+2y=10

Romashka-Z-Leto [24]

Answer: slope =

-1/2

Step-by-step explanation:

Since they are parallel, they will never intersect. The only way this is possible is if they have the same slope. All you had to do was get y by itself and find the number next to the x. Subtract the ten and the 2y and pass them to their opposite sides that way it will be x-10= -2y. After that, divide the -2 by everything on the x side. The final equation is -1/2x -10= y.

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3 years ago