Mathematics High School

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

Forty percent of the 45 slices of cake were strawberry flavor. How many were not strawberry flavored?

Answers

Answer:

Step-by-step explanation:

how do we do thisss
3^-2 × 3^x = 81 ​

Answers

Answer:

x = 6

Step-by-step explanation:

Using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex] , then

[tex]3^{-2}[/tex] × [tex]3^{x}[/tex] = 81 , that is

[tex]3^{x-2}[/tex] = [tex]3^{4}[/tex]

Since the bases on both sides are equal, both 3 then equate the exponents

x - 2 = 4 ( add 2 to both sides )

x = 6

Hello kind people I will be handing A brain-list
The Chang family is on their way home from a cross-country road trip. Their starting destination is 2,280 miles from their home. The Chang family can expect to decrease the distance from their home by 60 miles per hour.

Part A: Based on the information provided, write the function d(t) that represents the family's distance (in miles), d, from home after t hours of driving.

Part B: If rate at which the Chang family travels home continues at the same rate, determine the value of d(15) and describe what it means in reference to the situation.

Answers

Answer: d is 15 hrs

Step-by-step explanation:

Just substitute 15 in for t in 2280-60t and evaluate to get D(15)

D(15) is how many miles left to drive to get home after 15 hours

I don't know if this is 100% correct but I tried

Solve for c.

c+38=113

Enter your answer as a fraction in simplest form in the box.

c =

Answers

Answer:

c = 75

Hope this helps!

Step-by-step explanation:

c + 38 = 113

c + 38 - 38 = 113 - 38

c = 113 - 38

c = 75

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!7

Answers

Answer:

I think B is the answer

Step-by-step explanation:

Pls make me brainliest

Imsureeeeeeee123

the answer is D) -1
hope this helps

Cuanto es ( 4/2 - 1/2 ) + 3/4 simplificado I need the answer my English is no good I’m sorry both I need

Answers

9/4 or 2 1/4

Step-by-step explanation:

Please help with this

Answers

Answer:

the answer is x=107° you're welcome

The length of the bottom of the triangle is x. Another side is 2 more than three times the length of the bottom of the triangle the last side is 5 more than the bottom of the triangle write and simplify and expression for the perimeter of the triangle

Answers

Answer:

5×x×2× base× high u see me

PLSSSSS I WILL MARK BRAINLIEST PLSSSSSS
Raven is making pillows. Each pillow requires 1/3 yard of fabric. Raven has 6 yards of fabric. How many full pillows can she make?????????????????????????????????

Answers

Answer:

10

Step-by-step explanation:

3/5 simpilfied is 0.6

So 6/0.6 = 10

6 divided by 3/5 is 10

How many different pairs of 2-digit numbers multiply to give a 3-digit number with all digits the same? (A) 5 (B) 6 (C) 7 (D) 8 (E)S​

Answers

Answer:

a

Step-by-step explanation:

po ang tamang sagon po

15) Which of these is equivalent to -5pie rad ?
A) -1800°
B) -900°
C) -72°
D) -36°

Answers

Answer:

-900

Step-by-step explanation:

Andre says that 3 \div÷ 2/3 = because there are 4 groups of 2/3 and 1/3 left. Do you agree with Andre?

Answers

Answer: No

Is this 3/(2/3)?  I'll assume it is.

Step-by-step explanation:

3/(2/3) can be rewritten as 3*(3/2)

3*(3/2) = 9/2 or 4 1/2

Four groups of 2/3 would make 8/3 or 2 2/3, not 4 and 1/3.  

HUrrryyy i need help!!!!!

Answers

Answer:It is D Step-by-step explanation:

Find the perimeter. Simplify your answer.

Answers

Answer:

wild guess, 50

Step-by-step explanation:

10s+3+10s+3+3s+9+3s+9= 50

a series of 1125 consecutive integers has a sum which is a perfect cube find the smallest possible positive sum for this series?
please show your work :)

Answers

The smallest possible sum for the series is 91125

If zero is considered to be positive, the answer is zero (0).

otherwise

562 negative consecutive integers, then 0, then 562 positive consecutive integers has a sum of zero (0).

Moving the start, the smallest integer up 1 adds 1125 to the sum.

1125 = 9 * 125

1125 = 9 * 5³

= 9³ * 5³ is the smallest sum

= 45³

= 91125

Therefore the smallest  possible sum is 91125

for more questions like this see, https://brainly.com/question/19261165

Which of the fractions below is closest to zero? 1/4 1/5 1/6 1/8

Answers

Answer:

the answer to this question is 1/8

Step-by-step explanation:

1/4 is the biggest of the fractions,with 1/5 being the second biggest,and 1/6 being the 3rd biggest which leaves 1/8 as being the smallest and closest to 0

becouse it Was coll and Arm to Freizeit time

the perimeter of an equilateral triangle is 14.4 cm. Find out the length of the side of that triangle in decimal fraction. (step by step)​

Answers

Answer:

43.2 is the correct answer happy

Hello I need A helping Hand

Answers

Hi!

The second gym has a higher joining fee because it is $50 rather than $30.

The first gym has a higher monthly rate because it is $15 rather than $10

Hope this help!

Please see screenshot.
Could someone help?

Answers

Answer:

56/100

Step-by-step explanation:

The decimal place has 2 digits which indicates two zeros. So the denominator will be 100. And 56 will become the numerator.

Answer: 51/90

First set x equal to the decimal (we will solve for x):
x = 0.5666666666...

Now find 10x (we want to get the recurring digit right after the decimal point):
10x = 5.66666666666...

Next we can subtract x from 10x:
9x = 5.1

We can now get x by dividing both sides by 9:
x = 5.1/9

We can’t have a decimal in a fraction so we can multiply the top and bottom numbers by 10:
x = 51/90

Hope this helps!

d+(-9)=-5
i need to solve for d. thank u

Answers

Answer:

4

Step-by-step explanation:

d - 9 = -5

Add 9 to -5, and you will get 4.

4 - 9 = -5

Answer:

d=4

Step-by-step explanation:

d+(-9)=-5

d=-5+9

d= 4

Does the following relationship represent a function?

Answers

yes that is a function

If it has any repeating x values it isn’t one

help me plz with this

Answers

Answer:

1-a

2-e

3-d

4- c  

5- b

Step-by-step explanation:

Write in point slope form the equation for the line that goes through the point (-1,-6) and has a slope of 16

Answers

Answer:

y+6 = 16 (x+1)

Step-by-step explanation:

Point slope form of an equation is

y-y1 = m(x-x1)

where m is the slope and (x1,y1) is a point on the line

y- -6 = 16 (x- -1)

y+6 = 16 (x+1)

someone plz solve it

Answers

Answer:

the volume would be 9

Step-by-step explanation:

Answer:

5.760 or 4 cube root 3

Step-by-step explanation:

Explain how you will find the area of a rectangle with dimensions of 2x + 6 and 2x 6​

Answers

here is your perfect answer

gamsahamnida

What equation represents a line which is perpendicular to the line y = -6/5 - 7?

Answers

Answer:

B. (top right) 6y - 5x = 18

Step-by-step explanation:

Is the equation of the given line

y = -6/5 x - 7?

The x is missing.

If so, then the slope of the given line is -6/5.

A perpendicular line has a slope that is the negative reciprocal of -6/5, so we need a slope of 5/6.

A.

6x - 5y = 30

-5y = -6x + 30

y = 6/5 x - 6

Here the slope is 6/5, so this is not it.

B.

6y - 5x = 18

6y = 5x + 18

y = 5/6 x + 3

This is it.

C.

6x + 5y = 20 has negative slope, so it is not it.

D.

5x + 6y = 42 has negative slope, so it is not it.

WILL MARK BRAINLIEST IF CORRECT!

Answers

Answer:

Answer → Student A was right.

[tex]{ \tt{ \sqrt[3]{1944} = \sqrt[3]{(72 \times 27)} }} \\ \\ = { \tt{ \sqrt[3]{72} \times \sqrt[3]{27} }} \\ \\ = { \tt{ \sqrt[3]{72} \times 3}} \\ \\ = { \underline{ \tt{ \: 3 \sqrt[3]{72} } \: }}[/tex]

Help will give brainiest as long as you explain and theres more than 2 people who answered.

Answers

Answer:

x = 117º

Step-by-step explanation:

Supplement to 117 is

180 - 117 = 63

The angle below line BC is marked as congruent to the 63º angle and is therefor also 63º

Therefor x is the supplement to 63º

180 - 63 = 117º

x = 117º

there are eight competitors in each ring for a raw kwon do to tournament if there are 96 competitors in the tournament how many rings do they need

Answers

Answer:

12

Step-by-step explanation:

You divide 96 by 8 and you get 12.

Please help and provide work please
Complete the proof: ​

Answers

Explanation:

Statement . . . . Reason

1. AE ≅ CE, AB  CD, E is the midpoint of BD . . . . Given

2. BE ≅ DE . . . . definition of midpoint

3. ΔEAB ≅ ΔECD . . . . SSS congruence postulate

Other Questions
Eric's jersey number is a two-digit odd number. The positive difference between the two digits is 7, and the sum of the two digits is 11. What is Eric's jersey number? the vestibular system relies on hair cells that are similar in structure and function to those found in the auditory system. in the past century the concentration of carbon dioxide in the atmosphere has been increasing steadily describe an effect this might have on earths climate What is the period of the trigonometric function f(t) = 3sin()?A) 2 piB) 3 piC) 4 piD) pi / 2 5 paragraph Essay about law enforcement in the United States If x= 3, find the value of x. Identify the muscle(s) that is/are primarily responsible for holding the head of the humerus in the glenoid cavity. Cooling water available at 10C is used to condense steam at 30C in the condenser of a power plant at a rate of 0.60 kg/s by circulating the cooling water through a bank of 7-m-long 1.2-cm-internal-diameter thin copper tubes. Water enters the tubes at a mean velocity of 4 m/s and leaves at a temperature of 24C. The tubes are nearly isothermal at 30C. Determine the average heat transfer coefficient between the water, the tubes, and the number of tubes needed to achieve the indicated heat transfer rate in the condenser. What number has 7 as 1/10 decrease 67 by 26% give your answer in pounds The principle that we encode information together with its context is known as encoding a. transcription. b. priming. c. consolidation. d. specificity. what is the HCF of 2x and x Dnde estn?Look at these illustrations and tell whatSantiago and Daniela's relatives are doingsomewhere in their house in Cartagena.MODELO trabtrelaSu abuela come en el patio.Altos y bajosSome people refer to la planta baja aslos bajos (downstairs). The expressionlos altos is roughly equivalent to theEnglish upstairs or upper floor(s).The term el primer piso (the first floor)often identifies the second floor of abuilding, although many people alsouse the term to refer to the main floor.1. su prima2. su abuelo3. su primo Julin5. su ta4. su tiopequeaPlzzz help with this part The first three terms of a geometric sequence are as follows.2, -8, 32Find the next two terms of this sequence.Give exact values (not decimal approximations). Melanie got a new job through the Jones Employment Agency. The job pays $32, 400 per year, and the angency fee is equal to 45% of one months pay. How much must Melanie pay the agency? 2. Its time for Ronda to start repaying her student loans, which are amortized over the next 10 years. Her first months payment due is $396. How much should she expect to pay next month? How to write a letter to your friend to telling him/her about a plan that you have for an excursion Shawn and Dorian rented bikes from two different rental shops. The prices in dollars, y, of renting bikes from the two different shops for x hours is shown. Shop Shawn used: y = 10 3. 5x Shop Dorian used: y = 6x If Shawn and Dorian each rented bikes for the same number of hours and each paid the same price, how much did each pay for the rental? $. BRAINLIEST x 3It is kinda late and I need to finish my workPlease help meIf you answer this I will create two other posts to give you extra brainliests Review the graph. On a coordinate plane, a parabola opens up and goes through (negative 2, 5), has vertex (0, 1), and goes through (2, 5). Another parabola opens to the right and goes through (8, 4), has vertex (negative 8, 0), and goes through (8, negative 4). Everything inside of the first parabola and above the second parabola within the first parabola is shaded. Which system of inequalities has the solution set shown in the graph?