If f (x) = -2x^2 + 3 then f (-3) =
1. -15
2. 21
3. 39
4. -18

Answers

Answer 1

Answer:

-15

Step-by-step explanation:

put f(-3)=-2*(-3)^2+3


Related Questions

Please help mehhhhhh T^T

Answers

Answer:

Step-by-step explanation:

We can see the graph has an y intercept of 1 and from there the slope goes up one and to the right one so the slope is 1

PLEASE hELP
Find the domain of the function shown in the graph below?

Answers

Answer:

All real numbers with vertical asymptotes at -2 and 6

Step-by-step explanation:

The domain of the function is all the possible x values of the function, so the solution is all real numbers with vertical asymptotes at -2 and 6 because the values never cross here.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

plz help!!!!!!!!!!!!!!!

Answers

Answer:

equation of line of best fit:  y = -.018x + 7.3

y-intercept = 7.3

correlation coefficient = -.018

correlation coefficient indicates there is no correlation between the x-and-y values

Step-by-step explanation:

Find the slope of the line that passes through point A (-2,0)and point B (0,10) using m=rise/run

Answers

Answer:

m = 5

Step-by-step explanation:

The x-coordinate of A is -2 and that of B is 0.  The increase in this coordinate from A to B is 2.  Similarly, the y-coordinate increases by 10.  The slope is therefore m = rise / run = 10/2, or m = 5

if y varies directly as x, and y is 20 when x is 4, what is the value of y when x is 80

Answers

Answer:The equation of that is y=kx

Substitute it in and you get

20=6k

Divide 6 on both sides

k=3 1/3

Then since it asks what is the value of y when x is 24 use k in the equation

y=3 1/3*24

so y=80 is the answer

Step-by-step explanation:

What is the rate of 13 inches of snow in 8 hours?

Answers

Answer: 1.625 inches of snow per hour

Step-by-step explanation:

13 divided by 8 is 1.625

subtract. write your answer as a fraction in simplest form. 5/9 - 2/9 = what​

Answers

Answer:

[tex] \frac{5}{9} - \frac{2}{9} = \frac{3}{9} [/tex]

hope helpful <3

Answer:

3/9

Step-by-step explanation: don't think of it as a fraction just subtract the top 2 numbers and you would get 3/9 in the simplest form is 1/3

19. Is there any bias in the survey question? Explain.
What do you think would help students pay more attention in class?



Answers

Answer:

yes

Step-by-step explanation:

because everyone has a different method that works for them.

but then again it uses the pronoun you which means its asking for your opinion its not phrased

what would help študents pay more attention in class

so yes and no

If two figures are similar, what can you say about them? Be specific and give at least 3 details.

Answers

Answer:

im confused as to if these terms are supposed to be specific or if you are looking for certain ones

Step-by-step explanation:

but i would say congruent, corresponding angles, and equal

The cost of a pen is 3 times the cost of a pencil. The total cost of 8 pencils and 5 pens is $11.50.
Please help me to find the costs of a pen and a pencil.

Answers

Answer:

$5.78

Step-by-step explanation:

brainliest?

can anyone help me with math

Answers

Answer:

d = 6

Step-by-step explanation:

diameter is the whole thing while the radius is always half of the diameter.

12 / 2

= 6

Answer:

6

the diameter is always the half of a radius

Help please I really don’t understand due in 4 days

Answers

Answer:

I will clear you.

Step-by-step explanation:

or,x/3-2<4

or,x/3<4+2

or,x<6/3

or,x<2

Answer:

x < 18

Step-by-step explanation:

You solve it like an equation.

First, isolate the x-value to one side by adding 2 to each side:

x/3 - 2 + 2 < 4 + 2

The twos on the left side cancel out:

x/3 < 6

Now multiply both sides by 3:

x/3 x 3 < 6 x 3

The threes on the left side cancel out, leaving you with the x-value:

x < 18

Hope this makes sense :)

Measure these angles.

a)

b)

Answers

are the angles john cena? cuz i cant see anything

Solve each system by elimination
7x + 8y = -29
-3x -8y = 17

Answers

4x=-12
x= -3
Now that we know the value of x we plug that value into the first equation to solve for y
7(-3) +8y=-29
-21+8y= -29
8y=-8
y= -1

A train travels 160 miles at a constant speed for 80 minutes. What is the speed of the train in mi/min

Answers

Answer:

2mi/min

Step-by-step explanation:

Speed=Distance/Time

=160mi/80min

=2mi/min

Write an equation in slope intercept form given the following slope and point M=-3 (6,-9)​

Answers

Answer:

y = -3x + -9/6

-9/6 simplified as -3/2

1 Solve for the unknown variable:

Answers

Answer:

Approximately 6.4

Step-by-step explanation:

We can use the pythagorean thereom here, that tells us (a^2)+(b^2)=c^2. C is the hypotenuse, the side opposite from the right angle, while a and b are the other sides. We can insert 5 and 4 as a and b, and solve for c

:(5^2)+(4^2)=c^2

:25+16=c^2

:41=c^2

:sqrt(41)=6.4=c              (We square rooted both sides. 6.4 is only rounded to the nearest hundredths place.) Hope this helps!

Answer:

c = 6.4

Step-by-step explanation:

To find c, we need to use Pythagoras theorem which is:

[tex]a^2 + b^2 = c^2[/tex]

Plug known variables in:

[tex]5^2 + 4^2 = c^2\\25 + 16 = c^2\\\sqrt{25 + 16} = c\\\sqrt{41} = c \\c = 6.403\\c = 6.4[/tex]

Hope this helps!

Given that y varies with directly with x, and that y= 12 when x=3. Then when x=10, y= ?

Answers

Answer:

y = 40

Step-by-step explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 12 when x = 3 , then

12 = 3k ( divide both sides by 3 )

4 = k

y = 4x ← equation of variation

When x = 10 , then

y = 4 × 10 = 40

dose anyone know how to solv ethis??

Answers

no[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Instantaneous velocity of particle at 2 minutes is ~

[tex]1 \: \: m/s[/tex]

Refer to the attachment for solution ~

the question in the photo

Answers

Answer: b would be the answer

Step-by-step explanation:

Can someone help me solve this integral plsss?


integral of (2xˆ3+3xˆ2+x)/(xˆ2+1) dx

Answers

Ok done. Thank to me:>

Cookies cost $5.40 per dozen. What is the unit rate Price per cookie

Answers

Answer:

$0.45 per cookie

Step-by-step explanation:

1 dozen = 12, so you divide both sides by 12. 5.40/12 would equal $0.45 per cookie

Answer:$0.45

Step-by-step explanation:

If it costs $5.40 for 12 cookies then you will need to find how much it costs for 1 cookie. To do this you will need to divide 5.4 by 12 so 5.4/12=0.45

Choose the mixed number that has not been reduced to simplest form.
7 14/18
5 5/6
5 7/12
4 2/5

Answers

Hello there!

7 14/18 is the mixed number that has not been reduced to simplest form.

We can divide the numerator and denominator by 2 to reduce the fraction:

7 7/9

The answer is Option A. Hope this helps!

~Just a cheerful gal

#CarryOnLearning

[tex]SilentNature[/tex]

of a line in point slope form

Answers

☆Answer : (X1, Y1) = (7, 1)(X2, Y2) = (4, -2)

m = (Y2 - Y1)/(X2 - X1)

m = (-2 - 1)/(4 - 7)

m = -3/-3

m = 1

A line includes the points (7, –7) and (11, –3). What is its equation in slope-intercept form?

Answers

The slope intercept form is y = mx + b so the slope is m and the slope in this case is -2.5. Now we substitute that in the equation. Well use the first set of ordered pairs for x and y. So now we have: -7 = -2.5(7) + b. When you solve for this you should get: -7 = -17.5 + b. Now you solve for the last part and you get: -7 = -17.5 + 10.5. So the Answer is: y = -2.5x + 10.5

Dija writes 7x 9 = 63 to find the
number of players on 7 baseball teams. Describe what
each of the factors represents in the multiplication equation.

Answers

Answer:

7 represents the number of teams. 9 represents the amount of players on each team. And 63 represents the total number of players.

Step-by-step explanation:

A pie was cut into 8 equal pieces. If Malena ate 18 of the pie, and Lupe ate 58 of the pie, how many whole pieces of the pie are left?

Answers

Answer:

2/8ths are left

Step-by-step explanation:

8 equal.pieces means 8/8

she ate 1/8 and he ate 5/8

thats 6/8

8/8 - 6/8 = 2/8

Answer:

1

Step-by-step explanation:

i dunno maybe not sure

x+2y - 3z =15. 2x – 2z=6 x = 3. 2/3)-22 i dont know this answer pls help me???

Answers

Answer(s):

Exact Form: x + 2 y − 3 z = 15 , 2 x − 2 z = 6 , 3 2 3

Mixed Number Form: x + 2 y − 3 z = 15 , 2 x − 2 z = 6 , 3 2 3

Improper Fraction Form: x + 2 y − 3 z = 15 , 2 x − 2 z = 6 , 11 3

Decimal Form: x + 2 y − 3 z = 15 , 2 x − 2 z = 6 , 3. ¯ 6

Hope this helps, have a nice day/night! :D

16 is equal to the difference of twice a number p and 8.

Answers

16 = 2(p+8) I believe this is correct based on the wording of the question

Write an equation of the line in slope intercept form (-2,4) (0,0)

Answers

Answer:

y = -2x

Step-by-step explanation:

Slope = (change in y-values)/(change in x-values)

Slope = (0 - 4)/(0 - (-2)

Slope = -4/2

Slope = -2

Use the slope = -2 and point (0, 0) and substitute into y= mx + b to solve for b

y = mx + b

0 = -2(0) +b

0 = b

The equation of the line y = -2x + 0    or  y = - 2x

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