NEED HELP BY 12AM 70 points

Answer:

f(-2) = -3

Step-by-step explanation:

[tex]f(x)=-\frac{1}{2} x^{2} +x+1[/tex]

Just plug in x = -2

[tex]f(-2)=-\frac{1}{2} (-2)^{2} -2+1[/tex]

[tex]f(-2)=-\frac{1}{2} (4) -1[/tex]

4 can be rewritten as [tex]\frac{4}{1}[/tex] or [tex]\frac{8}{2}[/tex] so it has a common denominator.

[tex]f(-2)=-\frac{1}{2} * \frac{8}{2} -1[/tex]

[tex]f(-2)=-\frac{4}{2} -1[/tex]

[tex]f(-2)=-2-1[/tex]

[tex]f(-2)=-3[/tex]

Answer:

Step-by-step explanation:

1). A number that divides evenly into a given number  - Factor

2. Expressions, equations, and operations involving variables  -Algebraic

3. The bottom part of a fraction - Denominator

4. A fraction with a numerator that is larger than or equal to the denominator - Improper fraction

5. The number in an algebraic term  - Coefficient

Answer:

1. Factor

2.Algebraic

3. Denominator

4. Improper fraction

5. Coefficient

Answer:

19

Step-by-step explanation:

First get rid of the brackets:

[tex]2u + 12 - 8 > 3u - 15[/tex]

Then simplify:

[tex]2u + 4 > 3u - 15[/tex]

Get all the u's on one side:

[tex]2u - 3u > - 15 - 4[/tex]

Simplify and find u:

[tex] - u > - 19[/tex]

[tex]u < 19[/tex]

Step-by-step explanation:

By elimination method,

x+y=15

-x+y=5

------------

2y=20

i.e y=10

Now,

x+y=15

or, x+10=15

or, x=5

Answer:

5

Step-by-step explanation:

There answer would be 5

Answer:

The answer is 4 3/10

Step-by-step explanation:

If you first break this question up into two steps, you first must add the whole numbers and then the fractions, like this:

2 7/10   1 6/10

First, add the whole numbers [Bold]

2 + 1

That equals the whole number 3

2 7/10    1 6/10

Next you add the fractions [Underlined]

7/10 + 6/10

this equals 13/10

Since this fraction is higher than 10/10, it equals a whole number too. This fraction, 13/10, will be simplified to 1 whole and 3/10. After simplifying this number you add the whole numbers once again resulting in 3 + 1, giving you 4. after finding this out you add your fractions back in, creating the answer of 4 3/10.

Hope this helps you out!

Answer:

it is c

Step-by-step explanation:

top is correct

We want to know when a point is a solution to a system of inequalities. We will see that the correct option is "lies in the shaded regions of both the top and bottom inequalities."

A point is a solution to a inequality if and only if it belongs to the shaded region of the graph.

A point is a solution to a system of inequalities if and only if it is a solution of each independent inequality that conforms the system.

Then, it must belong to all the shaded regions that represent the solution set of the inequalities at the same time, this means that it must belong to the intersection of the shaded regions.

From this, the correct option is:

"lies in the shaded regions of both the top and bottom inequalities."

If you want to learn more about inequalities, you can read:

https://brainly.com/question/11234618

Answer:

sknsonsknsknsknskdnksndksn?

Answer:

20

Step-by-step explanation:

Answer:

I think it's C

Answer:

Step-by-step explanation:

sin(x)=cos(x) × tan(x)

=(-2√23)×(√24)

=(-2√23)×(2√6)

=(-4√138)

=(-4(2√(3×23)))

=(-8√69)

Answer:

560

Step-by-step explanation:

thatis the right answer

Answer:

your right

Step-by-step explanation:

Answer:

mark on the 0, on the 7, and half way past 8

hope this helps, pls give brainliest

Step-by-step explanation:

Answer: a

Step-by-step explanation:

(₋4)²

how i got it -

1st i used the sum-product pattern

x² - 8x + 16

x² -4-4+16

then, found the common fact from the two pairs

x² - 4 - 4 + 16

(-4) - 4(-4)

rewrite in factored form

(x-4)-4(-4)

(-4) (-4)

combine to a square

(-4) (-4)

Answer:

x=4*

Step-by-step explanation:

*THIS IS ASSUMING THAT THIS EQUATION IS EQUAL TO ZERO

X^2-8x+16=0

Let's solve this equation by factoring. First, we need to find factors of 16 that add to -8. We find that those factors are -4 and -4. X^2 is simply x times x.

Therefore, when it is factored It should look like this:

(x-4)(x-4)=0

Now we take both factors and set them equal to zero:

x-4=0; x-4=0

In both of these equations we just need to add 4 to both sides.

x=4; x=4

x=4

HTH :)

Answer:

5x-5+3x+3+5x=180

Step-by-step explanation:

As it is a triangle, sum of all angles is 180.

5x-5+3x+3+5x=180

13x=182, x=14

The expression that represents the measure sum of the angle is

(5x – 5)° + (3x + 3)° +  (5x)° = 180°.

A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.

We also know that sum of all the interior angles of a triangle is 180°.

The given statement can be written as,

∠A + ∠B + ∠C  = 180°.

(5x – 5)° + (3x + 3)° +  (5x)° = 180°.

13x - 2° = 180°.

13x = 180° + 2°.

13x = 182°.

x = 14°.

We can also find the measure of each angle now by substituting the value of x in ∠A, ∠B, and ∠C.

learn more about triangles here :

https://brainly.com/question/2773823

#SPJ2

Answer:

[tex]4p^{2}[/tex] or 4p^2

Step-by-step explanation:

Combine like terms:

4 x 4 and p x p

4^2 and p^2

4p^2

Answer:

-15 is a answere

Step-by-step explanation:

According to BODMAS(bracket of Division Multiplication Addition Sutraction) rule

5*10-5*13

50-65

-15

Answer:

the answer of the question are

ans- y= 0,-2

Given :- value of y = 3

To find :- y²-2y..................(I)

solution :- put value of y in eq 1

Y² - 2y

3²- 2(3)

9 - 6

= 3..!!!

answer is 3..

9514 1404 393

Explanation:

The sine of an angle in standard position is the y-coordinate of the intersection of its terminal ray with the unit circle. When the angle is in the range 180° < θ < 360°, that point of intersection is in quadrant III or IV, where y-coordinates are negative.

__

Alternative explanation:

That is where the sine curve is below the x-axis.

Answer:

yes it is

Step-by-step explanation:

pls give brainlest almost lvled up

Answer:

I believe that this is not.

It is not proportional.

Answer:

I think the answer would be 40%

Step-by-step explanation:

U would do 16 divided by 4 and get 4 and a 0 then bam I have ur answe.

Answer:

2125000

Step-by-step explanation:

Answer:

90 % of 250 = 225

85% of 2,500,000 = 2125000

Step-by-step explanation:

7/19 are the fraction of men's shoes

explanation + example:

Use the total number as the denominator: 6 + 8 = 14

Use each of the ratio terms as the numerator in a fraction:

6 becomes 6/14

8 becomes 8/14

Reduce each fraction to lowest terms:

6/14 simplifies to 3/7

8/14 simplifies to 4/7

The part-to-part ratio 6 : 8 converts into the fractions:

6/14 = 3/7

8/14 = 4/7

Answer:

b=133 degrees

c= 47 degrees

Step-by-step explanation:

If you need an explanation, I will put it in the comments.

Answer:

The passage is centered on the theme of belonging in a certain pack or group. Buck may be a bit different from the others but as Buck tried to be like them and did what they usually do, it gathered the trust of the pack especially the leaders. To belong in a group, one should gain their trust.

Step-by-step explanation:

Answer

A

Step-by-step explanation:

Answer:

B what is the probability that the winner of the race ... that the winner of the race (the fastest one of the four runners) will come from Team 1? ... Setting λ 1 = 19 / 90 and λ 2 = 5 / 24 we have, P ( X 1 < X 2 ) = Z ∞ 0 Z ∞ x 1 f X 1 ( x 1 ) f X 2 ( x 2 ) ...

Step-by-step explanation:

hope this helps

Answer:

1. A

2. B

Hopefully this is right.

Can i have brainliest?