If f(x) = x^2-2x find f(-1)

Answer:

5.2

Step-by-step explanation:

Answer:

5.2

Step-by-step explanation:

Hope it's right!

Answer:

5

Step-by-step explanation:

ty, have a good day!

Answer: 132 sodas & 66 hot dogs

Step-by-step explanation: S=soda H=hot dogs

so 2s + h = 198

= 198 / 3 = 66

66 x 2 = 132 sodas

66 = number of hot dogs

Answer:

how old are they im confused

Step-by-step explanation:

Answer:

where are the numbers

Answer:

if you put it backward you get the answer

Step-by-step explanation:

Answer: the answer is -1

Step-by-step explanation:

Hopes this helps !!!

Answer:

D) No solution

Think your answer is $27,100.

Answer:

y = -2

Step-by-step explanation:

You substitute 2 as x, y = 6 - 4 * 2, which is y = 6 - 8 = -2.

Answer: Knock Knock!

Step-by-step explanation: (Who's there?)

Answer: 4(−a+1)(a−1)

Step-by-step explanation:

Answer:

-4(a-1)^2

Step-by-step explanation:

just did the assignment

Answer:

36

Step-by-step explanation:

Calculation to Find two positive numbers

First step

Let the first positive number be a

Let the second positive number be b

Second step is to create the Equation

a^2+b= 54....... Equation (1)

b = 54-a^2........ Equation (2)

Third step is to find the product

Product= a(54-a)^2 = 54a-a^3

Fourth step is to differentiate

dP/dx = 54-3a^2

dP/dx = 0

Fifth step is to solve for 54-3a^2 = 0

Hence,

3a^2=54

a^2 = 18

Last step

a= √(18)

b= 54-(√(18))^2

b=54-18

b = 36

Therefore the two positive numbers are 36

Area of a square = Side x Side (length x width)

A = 1.69 m²

Length = √area of square

L = √1.69 m²

L = 1.3 m

Check Work: 1.3² = 1.3 m x 1.3m

= 1.69 m²

Answer:

he needs 1.3 meters of laminate for the length

Step-by-step explanation:

area of a square = side multiplied by side (or length x width)

area = 1.69 m²

Length = √area of square

L = √1.69 m² or 1.3m

Answer:

the E is the same as the circles

Step-by-step explanation:

Answer:

2 and 3

Step-by-step explanation

ask a brainly question

Answer: C; 3 4/2

Step-by-step explanation:  A fraction exponent can be represented using a radical. The base number is the number in the radical. The numerator of the fraction is the exponent inside the radical. The denominator is the type of radical.

An exponential always crosses at (0,1) This function crosses at (0.6) meaning it has shifted up 5 units or +5. These means only answer options A and D are possible solutions. Also, since the graph starts high and ends low and leveling out, this means the base is less than 1. Only 3/4 is less than 1. Answer A is the solution.

hope this helps, thank you! :)

Answer:

i think 8/1000

Step-by-step explanation:

The fraction is 8/9.

Any number that can be expressed as a fraction and where the denominator (the bottom number) and the numerator (the top number) are both integers is considered a rational number.

We have the decimal is 0.8(bar).

let x= 0.888888....    (1)

Now, multiply above equation by 10

10x = 8.8888.....         (2)

Subtraction equation (1) and (2), we get

10x - x = 8.8888.... - 0.88888...

9x = 8

x = 8/9

Thus, the fraction is 8/9.

Learn more about Rational Number here:

https://brainly.com/question/24540810

#SPJ2

Answer:

1. unlikely

2. likely

Answer: 1: Unlikely and 2. Certain...  (nothing is impossible)

Answer:

they are acute triangles and right triangles

Step-by-step explanation:

Answer:

x = -9

Step-by-step explanation:

x - ( - 5 ) = - 4

Distribute the negative sign

x - ( - 5 ) = - 4

x + 5 = -4

Inverse operations;

x + 5 = -4

  -5     -5

x = -9

Answer:

-9

Step-by-step explanation:

X = -4 + (-5) = -9

You can always move elements of equality to the other side by changing either their signs or applying opposite operator: addition <-> subtraction, multiplication <-> division

Answer:

(2x - 5) (x + 4)

Step-by-step explanation:

Answer:

x = 41

Step-by-step explanation:

119 + 76 = 195

236 - 195 = 41

Hey there!

The correct answer is 41

We can see that all angles are a total of 236, so we can subtract the other angles: 236 - 119 - 76 = 41

Hope it helps and have a good day!

Answer:

258 km

Step-by-step explanation:

To find how much he traveled:

(70 hm/hour) * ( 3 hours) = 210 km

so he traveled 210 km but still 48 km away from his home, then we need to add the values.

210 km + 48 km = 258 km

Don't forget to press that "Thanks" button and rate my answer!!!

Answer:

The volume is [tex]10.648 \times10^{-18}[/tex] cm³

The scientific notation [tex]1.0648 \times10^{-17}[/tex] cm³.

Step-by-step explanation:

Consider the provided information.

The side of a cube measures [tex]2.2\times10^{-6}[/tex] cm.

The volume of cube = [tex]s^3[/tex]

Where, s is the side.

The volume of cube: [tex]V=(2.2\times10^{-6})^3[/tex] .

[tex]V=(2.2)^3 \times(10^{-6})^3[/tex]

[tex]V=10.648 \times10^{-18}[/tex]

Hence, the volume is [tex]10.648 \times10^{-18}[/tex] cm³

The scientific notation [tex]1.0648 \times10^{-17}[/tex] cm³.

Answer:

44/48 and 11/120

Step-by-step explanation:

Answer:

100-20=80

80+ 6.75 = 86.75

139/100 X 86.75 = 120.5825

$120.58

Answer:

Please check the explanation.

Step-by-step explanation:

We know that when y varies directly with x, we get the equation

y ∝ x

y = kx

k = y/x

where 'k' is called the 'constant of direct variation'.

We are given that x = -2 and y = -2

Thus,

The equation is:

y = kx

substituting x = -2 and y = -2

-2 = k(-2)

-2 = -2k

We can further simplify the equation to determine the value of 'k'

so

dividing the equation by -2

-2/-2 = -2k/-2

1 = k

Therefore, the value of k = 1

Thus, the equation becomes

y = kx

substituting k = 1 in the equation

y = (1)x

y = x

Therefore, an equation that relates x and y is:

y = x

Answer:

3/4

Step-by-step explanation:

Answer:

a= 12, b= 24, c = 12, d= 12root3

Step-by-step explanation:

Because the triangle to the left is a right triangle with a 45 degree angle, we can deduce that it is a 45-45-90 special triangle where a =c. Furthermore, a and c = the hypotenuse divided by root 2.

12 root 2 / root 2 = 12

a=12, c=12

The triangle to the right is a right triangle with a 30 degree angle, so it is a 30-60-90 special right triangle.

If a = 12, b is 2 times a

b= 2*12 = 24

If a =12, d = a * root 3

d= 12root3

I hope this helped! :)

Answer:

x = 22, The length of BC is 22

Step-by-step explanation:

It is shown that angle ACB and angle ABC are congruent (The measure of angles are the same) in the picture. Since the angles are congruent, we can say that AC = AB because of base angle theorem converse. We can then substitute the given numbers in for AC and AB. We would then get 2x - 24 = x - 2. If you solve, you would get that x = 22 (The length of BC is 22).

Answer:

It is 9√3 and in decimal form it's 15.58845726

Step-by-step explanation: