f(x) = -3x^2
Find f(-2)

Answers

Answer 1

9514 1404 393

Answer:

  f(-2) = -12

Step-by-step explanation:

Put -2 where x is and do the arithmetic.

  [tex]f(x)=-3x^2\\\\f(-2)=-3(-2)^2=-3\cdot4=\boxed{-12}[/tex]


Related Questions

whats 183.47 to the nearest 10th

Answers

Answer:

183.5

Step-by-step explanation:

To round 183.47 to the nearest tenth consider the hundredths’ value of 183.47, which is 7 and equal or more than 5. Therefore, the tenths value of 183.47 increases by 1 to 5.

183.47 rounded to the nearest tenth = 183.5

Scientific notation is written in the form a*10^n. What must be true about the a value?
It can't be longer than 2 digits
It has to be greater than 100
It must be positive
It has to be a single digit between 1 and 10

Answers

Answer:

It has to be a single digit between 1 and 10

It has to be a single digit between 1 and 10

When plotting points on the coordinate plane below, which point would lie on the x-axis?

Answers

Answer:

If you plot the points you can easily find the answer. (X,Y) The x-axis is the horizontal line and the y-axis is the vertical line.

Step-by-step explanation:

Mark me as brainlist

Find the zero of the function /(x) = 5x-3.

Answers

Answer:

3/5

Step-by-step explanation:

Set it equal to 0

5x-3=0

Then solve for x

5x=3

x=3/5

Check

5(3/5) - 3

3-3

0

What are the zeros of the function (x) = x2 – 3x+2?

Answers

Step-by-step explanation:

f(x) = x² - 3x + 2 = (x - 2)(x - 1).

When f(x) = 0, (x - 2)(x - 1) = 0.

=> x = 2 or x = 1.

The equation of the line graphed below could be which of the following?

Please help ASAP

Answers

Answer:

4.

Step-by-step explanation:

First, you have to decide whether the slope is negative or positive. Since the line is going diagonally upward, it is positive.

That means the answer has to be either 3 or 4.

Next, you have to decide whether the y-intercept is negative or positive, on the graph, you can see that it is positive.

Answer choice 4 is the only equation where both the slope and the y-intercept are positive, so it is the answer.

What's the area of the quarter circle if the diameter is 3 inches?

Answers

Answer:

Area of the full circle(A)= pi*d^2/4

A=3.143*3^2/4

A=7.07in^2

Area of the Quarter of the circle(B)

B=1/4A

B=1.77in^2

Step-by-step explanation:

Which triangles are similar?

Answers

Answer:

A and c are similar except C is bigger than as so the scaling has gotten higher, so the answer is D

Step-by-step explanation:

Can someone help me please?

Answers

Answer:

It is growing by five! have a good day

Step-by-step explanation:

Answer:

it.is growing by 5.??????????????????????? ????????????????

Which of the following graphs correctly shows the image of the figure after a translation 4 units left and 3 units down?

Answers

Answer:

Option 2

Step-by-step explanation:

You can find the answer by just counting to the left and down

Please help!!!
Composition of functions~

Answers

Answer:

option D

Step-by-step explanation:

First you must find g(n) given that n is -3n:

g(-3n) = -3n - 1

Then plug that in f(n) as the new n:

f(n) 3( -3n - 1) + 5

= -9n -3 + 5

= -9n + 2

So option D

Italic

Help I need help this is a question I don’t understand

Answers

Answer:

Triangle ADB is an isosceles triangle that has been split in half. Isosceles triangles are triangles whose base angles are equal and has 2 equal side lengths. For example triangle ADB has AD and DB equal along with m<a and m<b equal

Therefore, if we split this triangle into two half's then they are congruent (the same)

Right triangles have a 90° angle, usually marked by a square

this means that m<DCA is 90°;AD=DB=14m; CB=AC=11; AB=AC+CB=22

Step-by-step explanation:

Isaac invested $77,000 in an account paying an interest rate of 4.6% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest cent, would be in the account after 12 years?​

Answers

Answer:

133,727.67

Step-by-step explanation:

the other one is wrong

also have a nice day

The amount of the money to the nearest cent, would be in the account after 12 years is $133,307.18.

Calculation of the amount:

Since the invested amount is $77,000

The rate of interest is 4.6% compounded continuously

And, the number of years is 12

So,

= $77,000 * (1 + 0.046/12)^48

= $133,307.18

hence, The amount of the money to the nearest cent, would be in the account after 12 years is $133,307.18.

Learn more about amount here: https://brainly.com/question/24338143

-4x - 2 (12x - 12) = 10 (12 - 2x) for x
Show work/ say the steps plz.

Answers

X=-59/4


I really hope this is right!!
-4x - 2 (12x - 12) = 10 (12 - 2x)
-4x - 24x + 24 = 120 - 20x
-28x + 24 = 120 - 20x
-24. -24
-28x = 96 - 20x
+20x. +20x
-8x = 96
divide -8 from both sides of the equation
x = -12

4x^2 - 12x - 3

what would the answer be if x = 7

Answers

Answer:

= 3 /2 ±  √ 3

Step-by-step explanation:

Answer : 109


Step-by-step explanation

2x+3y=3
y=8-3x

The value of y is substituted back into the first equation what is the resulting equation?
what is the value of x?
what is the value of y?

Answers

Answer:

2x + 3 (8 - 3x) = 3

x = 3

y = -1

Step-by-step explanation:

pretty sure thats right! have a great day!

ken eats 4 plums each day. How many plums would he eat in TWO weeks?​

Answers

Answer:

56 (plums)

Step-by-step explanation:

There's 7 days a week, 14 in two weeks, so if Ken eats 4 plums each day, he will eat 14 times that in two weeks.

x = 4 × 14

x = 56

Answer:

56

Step-by-step explanation:

4 plums a day, with 7 days in a week. 4*7=28 plums a week. He eats 4 plums a day for two weeks, so we multiply 28 by 2. 28*2=56.

HELP PLEASE!!! NOW :(

Answers

The answer will be “A”......

1. If the point (-5, -3) is translated 4 units to the right and 3 units down, what are the coordinates
of the new point? Write the algebraic expression that represents the translation.


Answers

Answer:

(-5 + 4, -3 - 3)

Step-by-step explanation:

"4 units to the right" requires ADDING 4 to the x-coordinate of (-5, -3):

(-5 + 4, -3).

"3 units down" requires SUBTRACTING 3 from the y-coordinate:  

(-5 + 4, -3 - 3), or (if simplified) (-1, -6)

The 2th term of The A.P is 7 and 9th term is 28, Find The comon difference and The first term.
help me please ​

Answers

Answer:

difference = 3, first term = 4

Step-by-step explanation:

given, a2 = 7

a9 = 28

wkt, a2 = a + d = 7

a9 = a + 8d = 28

- 7d = - 21

therefore d = 3

and wkt, d = a2 - a

a = 7 - 3 = 4

HOPE THIS HELPS

i need help please i would do anything

Answers

The answer is

Step-by-step explanation:

Since there is 3 even numbers and 3 odd numbers it makes a 50/50 chance when spun once. If you spin it 60 times you will have spun it 30 times theoretically.

can anyone answer -9(x-8) and show work ?

Answers

Answer:

-9x + 72

Step-by-step explanation:

1. -9(x-8)

2. distribute the 9. --> -9x + 72

I need help it’s urgent please I would really appreciate it

Answers

Answer:

The entire race is 26.20 miles long.

Step-by-step explanation:

Given that:

Sam is 18.34 miles in the race.

This length represents the 70% of the entire length of the race.

Let,

x be the total length of the race.

70% of x = 18.34

[tex]\frac{70}{100}x=18.34\\[/tex]

0.7x = 18.34

Dividing both sides by 0.7

[tex]\frac{0.7x}{0.7}=\frac{18.34}{0.7}\\x=26.20[/tex]

Hence,

The entire race is 26.20 miles long.

can someone help me on this?!

Answers

9514 1404 393

Answer:

  D.  3 to 4

Step-by-step explanation:

The ratio ...

  blueberries : strawberries = (1/2) : (2/3)

can be changed to a ratio of integer by multiplying by the least common denominator: 6.

  = 6(1/2) : 6(2/3) = 3 : 4

Marie added 3 1/8 cup of all-purpose flour and 1/4 cup of whole wheat flour in the cake. She added 1/3 cup of sugar at also, how much flour she added in the cake ?

Answers

Answer:

3 [tex]\frac{3}{8}[/tex]

Step-by-step explanation:

Maria only combined two different types of flour to the cake. Therefore, in order to find the total amount of flour she added we need to add these measurements together. First, we need to find a common denominator. We do this by multiplying the numerator and denominator of the amount of whole wheat flour by 2. This would be the easiest way of giving us the same denominator as the measurement for the all-purpose flour.

[tex]\frac{1 * 2}{4 * 2}[/tex] = [tex]\frac{2}{8}[/tex]

Now that we have the same denominators we can simply add both measurements together

3 [tex]\frac{1}{8}[/tex] + [tex]\frac{2}{8}[/tex] = 3 [tex]\frac{3}{8}[/tex]

Which of these best describes the location of (9,0) on a coordinate grid? Question 12 options: In Quadrant I In Quadrant II On the x-axis On the y-axis
Help quick!

Answers

Step-by-step explanation:

Quadrant I: Both values are positive.

Quadrant II: x-value is -ve, y-value is +ve.

On the x-axis: y-value is 0.

On the y-axis: x-value is 0.

The point (9, 0) has a y-value of 0.

=> It lies on the x-axis.

Nasser is following this recipe to make flapjacks.
Nasser uses 1.4 kg of sugar.
How many flapjacks is Nasser making?
Recipe: Makes 12 flapjacks
140 g margarine
175 g sugar
200 ml syrup
200 g oats
40 g sultanas

Answers

Answer:

96

Step-by-step explanation:

12 flapjacks=175g sugar

0.06857142857 flapjacks=                1g sugar

                                                             1400g sugar

96flapjacks=1400g sugar

i hope i helped<3

Answer:

96

Step-by-step explanation:

You can Trust me cuz our work is same

Supposed U = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1} is the universal set and K = {-10, -8, -6, -4, -2}. What is K’?

Answers

Answer:

-9

Step-by-step explanation:

-9,

Find the sum:
The blanks r subtraction signs

Answers

Answer:

[tex]8x^2+6x-17[/tex]

Step-by-step explanation:

All that we have to do is add the 3 and 5 so it's basically like combining like terms. So the first blank is 8.

Now we add the x and the 5x which is 6x, all we're doing is adding the x's.

Now we do add the two negative 10 and 7. So what is -10 + - 7 we add them normally but we'll still have the negative in front of them. So it's -17.

Someone good at math pls help me:)

Answers

Answer:

B) (-2,6)

Step-by-step explanation:

Where do the two lines intersect? That is where the solution is.

Hope this helps

Answer:

I believe the answer B ( I think)

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