Mathematics High School

what is the answer i need help

Answers

Answer 1

Answer:

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

Step-by-step explanation:

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

I hope I helped you^_^

Related Questions

Halfway through the third quarter, how much of the game is left?
Write the answer as a proper fraction,

Answers

11/1 explanation there are 11 minutes in a quarter of a game

Help on this one to ??

Answers

Answer:

Step-by-step explanation:

What’s another name for line qr

Answers

The order of the letters does not matter when referring to just a line

{y= -1-3x
{y + 3x = 3

Answers

Answer:

No Solution.

Step-by-step explanation:

y=-1-3x

y+3x=3

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

-1-3x+3x=3

-1=3

no solution

the answer to this is no solution! that’s what the other answer said haha

Can someone help me with this pattern:

Sweet Time Bakery just opened and is increasing the number of items they bake. For example, the bakery made 1 carrot cake in January, 4 carrot cakes in February, 16 carrot cakes in March, and 64 carrot cakes in April. If this pattern continues, how many carrot cakes will the bakery make in May?

Answers

Answer:

256

Step-by-step explanation:

Rule:*4

1*4=4

4*4=16

16*4=64

64*4=256

I hope this helps!

(4,6) rotated 90 degree

Answers

Rotated clockwise: 6,-4
Rotated counter clockwise: -6,4

Answer:

(6,-4)

Step-by-step explanation:

when you have (x,y) and you want to rotate it 90 degrees, you would switch the x and the y and then make the x negative. So (4,6) would switch to (6,4) and then the 4 would become negative.

PLEASEEE HELP ASAPPPP!!!!

Answers

Answer:

(-15,3) (2,-11) (-3,-7) (12,4)

Step-by-step explanation:

tell me if im wrong

If y varies directly with x according to the relationship y = kx, and y = 7.5 when x = 2.5, determine the constant of variation k.

Answers

Answer:5

Step-by-step explanation:

I NEED HELP FAST!!!! WILL GIVE BRAINLIEST.

Answers

Answer:

Step-by-step explanation:

Ok what’s the problem

if i made 80 dollars every weekend for a year, how much would i have

Answers

Answer: You would have 4160$

Step-by-step explanation: there is 52 weeks in a year so 52 times 80

Answer: $4,160!!

The amount of money made multiplied by the amount of time

The mean of a set of numbers is 8, and the mode is 9.

Which of the following sets of numbers do these values describe?

3, 7, 9, 9, 10, 14
1, 5, 8, 10, 11, 13
4, 6, 8, 9, 9, 12
3, 5, 7, 9, 12, 12

Answers

You can start by looking at the mode of the set of number automatically b and d are eliminated. We then proceed to calculate the mean so add all the numbers in A so it’ll be, 52 then divide by the amount of numbers in the set so 6. 52/6 =8.6
And C ends up being 48 so 48/6 = 8
Therefore your answer is C

Answer:

Step-by-step explanation:

Please Please Please Please Help ASAP!!!!

Answers

Answer:

Step-by-step explanation:

Someone help and plz make sure it’s right? :)

Answers

Answer:

Right

Step-by-step explanation:

It is right because every angle with 90° degree or with these shapes are called right angled traingle.

if it helps don't forget to like and mark me

An item on sale costs 55% of the original price. The original price was $35.
need asap

Answers

Answer:

$19.25

Step-by-step explanation:

55% of 35 is 19.25

the volume of the cone is 25.12 the height is 6 what is the area of the base

Answers

Answer:

153.94

Step-by-step explanation:

AB=πr2=π·72≈153.93804

Answer:

The area of the base is 12.56 units squared.

Step-by-step explanation:

The volume formula of a cone is [tex]\pi r^{2} \frac{h}{3}[/tex]. To solve for the base area, just multiply the volume by 3 and divide by the height. 25.12 * [tex]\frac{3}{6}[/tex] = [tex]\frac{25.12}{2}[/tex] = 12.56 units squared.

someone help me with this plss

Answers

2.57 + 5x = 25.92 is the equation and when you solve for x you would get x = 4.67

Jill earns $56
(y) for 1 hour of
babysitting
each day for
a week (x).

Answers

Answer:

In a week, Jill will earn $392 if she babysits for 1 hour per day.

Step-by-step explanation:

A population of 6000 bacteria is growing at a rate of 6% each day. Write 2 an equation that expresses the number of bacteria at time x.

A. y = 6000(.06)×
B. y = 6000(1.06)×
C. y = 6000(.94)×

Answers

i think is A im not sure

I need the answers pls

Answers

ffggddaafvvcgghv de ryhvg

125% of what number is 13

Answers

Answer:

udtdggufutrzdg kkhhx uttsjdiidi dgufigtxtx

Percentage' is obtained by multiplying 13 by 125%

125% of 13 is equivalent to multiplying them:

125% × 13 = ?

125% × 13 =

(125 ÷ 100) × 13 =

(125 × 13) ÷ 100 =

1,625 ÷ 100 =

16.25

p explanation:

A balloon has a circumference of 16 cm. Use the circumference to approximate the surface area of the balloon to the nearest square centimeter.

804 cm2

326 cm2

256 cm2

81 cm2

Answers

Answer:

The answer is 256 cm 2.....

Please help!!:(( I’ll give the best answer the brainliest :)
(and of y’all can please stop with the links it’s not working)

The quadrilateral SMUG on the coordinate plane has the following characteristics.

SM can be represented by the equation x+4y = 7 where 3 <_ x< _ 7

UG can be represented by the equation why equals 1/4x - 5/2 where 2<_x <_ 6

Part A: graph the figure represented by the information given above

Answers

Answer:

Step-by-step explanation:

A traffic camera sits on top of a tower that has a height of 39 ft. The angles of depression of a car on a straight road at the same level as that of the base of the tower and on the same side of the tower are 31°. Calculate the the distance between the base of the poll and the car. Round to the nearest tenth of a foot. *

Answers

Answer:

48ft

Step-by-step explanation:

Distance of car A from the towerConsider ∆ACD tan25 = 50/AC AC = 50/tan25 = 50/0.4663 = 107.2 ft Distance of car B from the towerConsider ∆BCD tan40 = 50/BC AC = 50/tan40 = 50/0.8391 = 59.6 ft

Distance from cars A and B AB = AC – BC = 107.2 – 59.6 = 48 ft The distance between the two cars is 48ft

Can someone please help me answer this question asap thank you . No links please and thank you .

Answers

It’s a 10 to 1 relationship

HELP DUE IN 60 MINS!

1. Slope of HE =??

2. Slope of GF =??

3. Slope of HG =??

4. Slope of EF =??

Answers

Answer:

Use coordinates of the vertices and the slope formula.

H(-3, 0), E(1, 4), F(3, 2), G(-1, -2)

1. Slope of HE:

m = (4 - 0)/(1 + 3) = 1

2. Slope of GF:

m = (-2 - 2)/(-1 - 3) = 1

3. Slope of HG:

m = (-2 - 0)/(-1 + 3) = -1

4. Slope of EF:

m = (2 - 4)/(3 - 1) = -1

Help
Please !!!,!,!,!,!!

Answers

Answer:

700cm

2450cm

40cm

6991cm

Step-by-step explanation:

Times ten for every one.

The volume of a cylinder is 54π cubic inches and the height is 6 inches. Find the radius.

Answers

Answer:

The radius of the cylinder is 3 inches.

Step-by-step explanation:

For any given cylinder, the volume can be expressed as:

volume = [tex]\pi[/tex][tex]r^{2}[/tex]h

where r is the radius of its circular surface, and h is its height.

Given that: volume = 54π cubic inches, and the height = 6 inches.

then,

54[tex]\pi[/tex] = [tex]\pi[/tex] x [tex]r^{2}[/tex] x 6

54[tex]\pi[/tex] = 6[tex]\pi[/tex][tex]r^{2}[/tex]

[tex]r^{2}[/tex] = [tex]\frac{54\pi }{6\pi }[/tex]

= 9

r = [tex]\sqrt{9}[/tex]

r = 3

The radius of the cylinder is 3 inches.

What is a characteristic of a rational number? A) it will always repeat B) it will always terminate C) it can be written in a fraction form D) it must be a while number

Answers

It is B because it is and no questions asked

Answer:

I think its a bc I took ze test and its right

Step-by-step explanation:

Sorry if its wrong

I need help finding the equation for solving x, can someone help me? I don't need the answer, just the equation. :)

Answers

Answer:

25?

Step-by-step explanation:

Answer:

x+139 = 132

Step-by-step explanation:

Mr. Crawford put $4500 into bank at an interest rate of 3%. How much money will she have in the back after 5 years?

Explain please. Brainlist if correct.

Answers

Answer:

He will have $5175.

Step-by-step explanation:

3% of 4500 is 135. 135x5=675. Add 675 to 4500 which equals 5175.

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