What are the zeros of f(x)=(x-2)(x+7)? Select all that apply. A. x=2 B.x=7 C. x=-7 D=-2

Answer:

10 cm

Step-by-step explanation:

im smart

Answer:

400,000km is represented as 8cm on the map!!!

Step-by-step explanation:

1cm=50000km

8cm=x

Criss cross

1cmx=8cm×50000km

divide both side with 1cm

x=8×50000km

x=400,000km

Answer:

you have to add an image

Step-by-step explanation:

but it could be (-x+9)(x-9) if thats an option

Answer:

x = -9

Step-by-step explanation:

-X2 -81=0

x2+81=0

x = -9

Answer:

1/3

Step-by-step explanation:

1/2 x 2/3 = 2/6

simplify to get 1/3

Answer:

its the last one

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

Answer:

1) L R

2) LS LS

3) DS DS DS DS

L = Left

R = Right

S = Straight

D = Door

Answer:

is

has

Step-by-step explanation:

Answer:

here's  the answer!

Answer:

Volume of tennis ball = 11.49 inch³

Step-by-step explanation:

Given:

Radius of tennis ball = 1.4 inches

Value of π = 3.14

Find:

Volume of tennis ball

Computation:

Volume of sphere = [4/3][π][r]³

Volume of tennis ball = [4/3][π][Radius of tennis ball]³

Volume of tennis ball = [4/3][3.14][1.4]³

Volume of tennis ball = [1.333][3.14][1.4]³

Volume of tennis ball = [1.333][3.14][2.744]

Volume of tennis ball = [4.1856][2.744]

Volume of tennis ball = 11.4852

Volume of tennis ball = 11.49 inch³

Answer:

The answer is 444.

Step-by-step explanation:

First, you do 375 - 47 because 47 swam away, decreasing the amount of fish that are swimming in a school. Then, 116 fish come back to swim so you add 116 to get 444.

There are 444 fish in the school now.

The unitary method's formula is to identify the value of a single unit, then multiply that value by the number of units to obtain the required value.

The unitary approach is used when we have several goods with varying values in our possession. To get the value of one unit, we simply divide the total value by the number of units.

We have,

375 fish are swimming in a school.

First, 47 fish swim away.

Then 116 more fish join the school.

So, the number of fish in the school now

= 375 - 47 + 116

= 444 fish

Thus, there are 444 fish in school now.

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Answer:

B) 2600

Step-by-step explanation:

Set up a proportional equation and solve:

220/300=x/3545

(220)(3545)=300x

779900=300x

2599.666=x

2600=x

Your best estimate is B) 2600

Answer:

A. 5

Step-by-step explanation:

Given the area of the circle is 25pi. We will divide by pi. Then, the radius of the circle is r= 5.

Answer:

Solution given:

scale factor=V/v=250/686 or 125/343

Answer:

250 and 686 bye

Step-by-step explanation:

done ✔ ⌛ ⏳ ✔ ⌛ ⏳ ✔

Answer:

140

Step-by-step explanation:

first you take the product of 5/6 and 42/1, which is 210/6.

Then you devide that with 5, 210/6/5 = 210/30 or 210/6 . 1/5 = 70.

Next you multiply that with 2; 70 . 2 = 140.

There you go

Step-by-step explanation:

A ≈12.57in²

d = Diameter

Using the formulas

A=πr2

d=2r

Solving forA

A=1/4πd²=1/4·π·4²≈12.56637in²

Answer:

A = 4π in²

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr² ( r is the radius )

Here d = 4, then r = 4 ÷ 2 = 2

A = π × 2² = 4π in²

Answer:

[tex]\left(x+1\right)\left(x-2\right)\left(x+2\right)(x +2 - 4i)(x +2 + 4i)[/tex]

Step-by-step explanation:

Given

[tex]f(x) = x^5 + 5x^4 + 20x^3 - 96x - 80[/tex]

[tex]Zeros: -2, -1, 2[/tex]

Required

Factorization of f(x)

The given zeros imply that:

[tex]x=-2[/tex]     [tex]x =-1[/tex]    [tex]x = 2[/tex]

This gives:

[tex]x + 2 =0[/tex]        [tex]x + 1 = 0[/tex]       [tex]x - 2 = 0[/tex]

So, some factors are:

(x + 2), (x + 1) and (x - 2)

Divide f(x) by the factors, to get the other factors:

[tex]\frac{x^5 + 5x^4 + 20x^3 - 96x - 80}{(x + 2)(x + 1) (x - 2)}[/tex]

Using a factorization calculator, we have:

[tex]\frac{\left(x+1\right)\left(x-2\right)\left(x+2\right)\left(x^2+4x+20\right)}{(x + 2)(x + 1) (x - 2)}[/tex]

Cancel out common terms

[tex]x^2+4x+20[/tex]

Using quadratic formula, we have:

[tex]x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}[/tex]

Where

[tex]a = 1; b =4; c = 20[/tex]

[tex]x = \frac{-4 \± \sqrt{4^2 - 4*1*20}}{2*1}[/tex]

[tex]x = \frac{-4 \± \sqrt{16 - 80}}{2*1}[/tex]

[tex]x = \frac{-4 \± \sqrt{-64}}{2}[/tex]

Using complex notation

[tex]\sqrt{-64}= 8i[/tex]

So:

[tex]x = \frac{-4 \± 8i}{2}[/tex]

Simplify the fraction

[tex]x = -2 \± 4i[/tex]

Split

[tex]x = -2 + 4i \ or\ x = -2 - 4i[/tex]

Equate to 0

[tex]x +2 - 4i = 0 \ or\ x +2 + 4i = 0[/tex]

The other factors are: (x +2 - 4i) and (x +2 + 4i)

Hence, the factorization of f(x) is:

[tex]\left(x+1\right)\left(x-2\right)\left(x+2\right)(x +2 - 4i)(x +2 + 4i)[/tex]

Step-by-step explanation:

The answer is 70.11 because of the surface and its a pyramid

Answer:

the answer should be 7+3i

Answer:

possibly 10

Step-by-step explanation:

im not sure possibly

Answer:

Parallelogram

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

It's the only one that is correct for all values

Answer:

0.24224806201 or 0.24 or 6/25 or 24%

Step-by-step explanation:

Answer:

Step-by-step explanation:

PART A

7.5 represents the ounces of water heating up inside the pot.

PART B

40 in the equation will represent the starting point. It can be described as where the temperature started.

PART C

The temperature, of Colton's pot of water after 16 minutes will be 120°  7.5(16) = 120  7.5 being the ounces of water and 16 being minutes.

PART D

After 16 minutes of heating, about 13.3 as additional time will be added for the water to start boiling at 212°.

The temperature in degrees Fahrenheit of colton's pot of water after 16 minutes is 160° F. The additional time to the nearest minute will be needed for the water to boil is 7 minutes approximately.

You can simply replace those variables with the value you know of them and then operate on those values to get a final value. This is the result of that expression at those values of the considered variables.

For this case, it is specified that:

So, if the water is boiling for x = 16 minutes, then the temperature would be:

[tex]y = 7.5 \times 16 +40 = 160^\circ \: \rm F[/tex]

Also, we need to make the temperature reach to 212 degree Fahrenheit after 16 minute of boiling.

Let it takes T time (in minutes more) to reach 212 degree Fahrenheit, then: y = 212, x = 16 + T

Putting these values in the equation, we get:

[tex]y = 7.5x + 40\\212=7.5\times(16+T) + 40\\212 = 120 + 7.5T + 40\\7.5T = 212-160\\\\T = \dfrac{212-160}{7.5} = \dfrac{52}{7.5} \approx 6.93 \: \rm minutes \approx 7 \: \rm minutes[/tex]

Thus, the temperature in degrees Fahrenheit of colton's pot of water after 16 minutes is 160° F. The additional time to the nearest minute will be needed for the water to boil is 7 minutes approximately.

Learn more about evaluating a function at a value here:

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Answer:

C). 10 cm

Step-by-step explanation:

A Trapezoid is characterized as a quadrilateral having two parallel(non-adjacent) sides. While an isometric transformation includes a geometric system having three equal axes lying at right angles to one another. In order to convert the trapezoid into a parallelogram, the length of JK must be 10cm(8 + 2) so that opposite edges are of equal length with an angle of 90°. Thus, option C is the correct answer.

Okay so let's break this down into TWO shapes :

A being the top shape and B being the bottom one.

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Volume of A

5 * 2 * 2 - 20 (using the formula length * width * height)

Volume of B

4 * 6 * 2 = 48 (using the formula l*w*h)

Add both of these volumes together to get the volume of the total shape : 68cm cubed (I don't know how to add units on this keyboard)

【☆】★【☆】★【☆】★【☆】★【☆】【☆】★【☆】★【☆】★【☆】

Answer:

68cm cubed

Step-by-step explanation:

15 waffles

Step-by-step explanation:

60 minutes in an hour.

60/4 = 15

The solution is: 15 waffles can be made in an hour.

Division is the process of splitting a number or an amount into equal parts. Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.

here, we have,

given that,

A waffle iron can make a waffle in 4 minutes.

now, we have to find that, how many waffles can be made in an hour.

we know that,

there are, 60 minutes in an hour.

so, we have to find that, how many waffles can be made in 60 minutes.

we have,

in 4 mint make 1 waffles

so, in 1 mint make 1/4 waffles

so, in 60 mint make = 1/4 * 60

                                 = 15 waffles

i.e.

60/4 = 15

Hence, The solution is: 15 waffles can be made in an hour.

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