Use the distributive property to write an expression that is equivalent to 12 + 4x .

Answers

Answer 1

Answer:

4 ( 3 + x )

Step-by-step explanation:

Pull out a four from both parts

4( 3 + x)


Related Questions

The weight of 100 identical samples of a substance is 0.01 pounds.
What is the weight of 10,000 samples?

Answers

0.01/100 = 0.0001 x 1000 = 0.1lb

W =15
2. Marlon buys 9 packs of hot dogs. There are 6 hot dogs in each pack. After
left over. How many hot dogs were eaten?

Answers

How many hot dogs were in each pack

A constant volume of cookie dough is formed into a cylinder with a relatively small height and large radius. When the cookie dough is placed into the oven, the height of the dough decreases as the radius increases, but it retains its cylindrical shape. At time t, the height of the dough is 8 mm, the radius of the dough is 18 mm, and the radius of the dough is increasing at a rate of 2 mm per minute.

Part A: At time t, at what rate is the area of the circular surface of the cookie dough increasing with respect to time? (5 points)

Part B: At time t, at what rate is the height of the dough decreasing with respect to time?

Answers

Answer:

a) dA/dt = 125,42 mm/min

b) dh/dt = - 1,78 mm/min

Step-by-step explanation:

The volume of the cylinder is:

V(c) = π*r²*h         ( r and h radius of the base and heigh respectively )

Then the surface area is: Area of the base : π*r²

Plus lateral area :  h*2*π*r

A(c) =  π*r² + 2*π*r*h

With the help of differentials we obtain:

dA/dt = 2*π*r*dr/dt + 2*π*h*dr/dt + 2*π*r*dh/dt        (1)

In this equation and at time t we know:

r = 18 mm        dr/dt = 2 mm/min      h = 8 mm    dh/dt = ??  

dA/dt = increasing rate of the surface area ( with respect to time)

To find dh/dt we know:

V(c) is constant, then

V(c) = π*r²*h     then   h = V(c) / π*r²

dh/dt = - [V(c)*2*π*r*dr/dt ] / π²*r⁴

By subtitution of V(c)

dh/dt = - [ π*r²*h *2*π*r*dr/dt ] / π²*r⁴

dh/dt = - [2*π²h*r³*dr/dt ] /π²*r⁴

dh/dt = - [2*h* dr/dt ] / r

dh/dt =  -  2*8*2 / 18    mm/min

dh/dt = - 1,78 mm/min

By subtitution in equation (1)

dA/dt = 2*π*r*dr/dt + 2*π*h*dr/dt + 2*π*r*dh/dt

dA/dt = 2*π*18*2 + 2*π*8*2 + (- 2*π*18*1,78 )

dA/dt = 226,20 + 100,53 - 201,31

dA/dt = 125,42 mm/min

Following are solutions to the given points:

Formula:

Cylinder volume [tex]v = \pi r^2 h...............(i)[/tex]

[tex]\to \frac{dr}{dt} = 2 \frac{mm}{min}\\\\ \to \frac{dh}{dt} = -2 \frac{mm}{min}\\\\ \to h=8\\\\ \to r=18 \\\\[/tex]

Part A:  

Calculating the circular area of the surface:

[tex]\to A=\pi r^2\\\\[/tex]

So, [tex]\frac{dA}{dt}=2 \pi r \frac{dr}{dt}.........(ii)[/tex]

Therefore

[tex]\to \frac{dA}{dt}= 2\pi \times 18 \times 2= 72 \pi \ \frac{mm^2}{min}\\\\[/tex]

Part B:

[tex]\to \frac{dh}{dt}= - 2 \frac{mm}{min}[/tex]

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Complete the solution of the equation. Find the
value of y when x equals 15.
-x + 2y = -1

Answers

The answer is y = 7

Danielle wants to fill a box with dirt to start a garden if the box is 2 1/5 feet long by 1 1/3 feet wide and 1 1/2 feet deep how much dirt does Daniel need to fill up the box for her garden

Answers

Answer:

3/7 and 5/9

Step-by-step explanation:

The volume of dirt needed to fill up the box for Danielle's garden is 22/15 cubic feet.

To find the volume of dirt needed to fill up the box for Danielle's garden, we need to calculate the volume of the box.

The formula for the volume (V) of a rectangular box is:

V = length × width × depth

Given dimensions:

Length = 2 1/5 feet

Width = 1 1/3 feet

Depth = 1 1/2 feet

Now, let's convert the dimensions into improper fractions:

Length = 2 1/5 = (5 × 2 + 1) / 5 = 11/5 feet

Width = 1 1/3 = (3 × 1 + 1) / 3 = 4/3 feet

Depth = 1 1/2 = (2 × 1 + 1) / 2 = 3/2 feet

Now, plug the values into the volume formula:

V = (11/5) × (4/3) × (3/2)

Next, multiply the fractions:

V = (11/5) × (4/3) × (3/2) = 44/30 = 22/15

Now, we can simplify the fraction:

V = 22/15

The volume of dirt needed to fill up the box for Danielle's garden is 22/15 cubic feet.

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You rode your bike for 5 miles in 30 minutes.
If
you rode at the same rate, you would ride 12 miles in 80 minutes.
12
HINT:
5
30
O True
O False

Answers

it’s False, you’d have to divide the number of minutes by the miles to get how many minutes it took PER mile to ride your bike. 30/5 is 6 therefore it takes 6 minutes per mile. if you were to multiply 6 times 12 miles it would equal 72 minutes.

The perimeter of a rectangle,p, is given by p =2L + 2W , where L is its length and w is its width what is the perimeter of a rectangle of length 15ft and width 15ft ?

Answers

Answer:girl use google

Step-by-step explanation:what

Which trigonometric functions have a domain of [–1, 1]?

Answers

Answer:

A. y = arcsinx and y = arccosx

Step-by-step explanation:

edge

The trigonometric functions have a domain of [–1, 1] is sine and cosine function.

What is Domain?

The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f(x) make up this set. A function's range is the collection of values it can take as input. After we enter an x value, the function outputs this sequence of values.

Given:

From the given identity, the following things can be interpreted:

cos²x = 1- sin² x

cos x = √(1- sin2x)

Since the cosine function is known to be defined for real numbers, the value contained within the root is always positive. Therefore,

1- sin²x ≥ 0

sin²x ≤ 1

sin x ∈ [-1, 1]

Similarly,

1- cos²x ≥ 0

cos²x ≤1

cos x ∈ [-1,1]

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HELP ASAP ILL GIVE BRAINLIEST!!!

At the park, 3/5 of the space is for the playground equipment . Of that space. 1/4 is used for swings. What fraction of the park is used for swings?
3/20

1/5

1/3

4/9

Answers

Answer:

1/5 is ur answer

Step-by-step explanation:

Which number is a zero of the function f?
f(x) = x2 - x - 6
F 6
G2
H 3
IO

Answers

Answer:

zeros of the function are −2 and 3

Step-by-step explanation:

there is no -2 so H.3

the answer is a. 6...........

Kevin Fast pulled a CC- 177 Globemaster airplane 8.8m. he plane weighed 188 tons. How many pounds did the lane weigh?

Answers

Answer:

376000 pounds

Step-by-step explanation:

What's required of this question is to convert the given weight of plane from tons to pounds

Given

[tex]Weight = 188\ tons[/tex]

Required

Get pounds equivalent

From standard unit of measurements

[tex]1\ ton = 2000\ pounds[/tex]

Multiply both sides by 188

[tex]188 * 1\ ton = 188 * 2000\ pounds[/tex]

[tex]188\ tons = 376000\ pounds[/tex]

Hence, the weight of the plane in pounds is 376000

write an equation for each description. solve for x

Answers

Answer:

x = 33

Step-by-step explanation:

Because of the little square we know the total angle is 90

24 + 2x = 90

-24

2x = 66

/2

x = 33

North and South had conflict over which of the following? (lol I accidentally put this as math but it's HISTORY)

A. Slavery

B. Tariffs

C. States' Rights

D. All of the above

Answers

Answer: I think D

Step-by-step explanation: I know slavery and states rights but i don’t know about the b one

Answer: All of the above

Step-by-step explanation: The south wanted slavery, lower or no tariffs, and individualized states writes. On the other hand, the north wanted no slavery, tariffs, and a central government.

Coach Crowell won 80% of the games he pitched. If he pitched 35 games, how many did he win?

Answers

Answer:

28

Step-by-step explanation:

Multiply 35 by .8

Answer:

If he pitched 35 games then he will win 28 of his games.

Step-by-step explanation:

You take 35 and multiply it by the percentage. But first make the percentage a decimal by moving the decimal two places to the right making it .8

Then you multiply and you have your answer!

WILL MARK AS BRAINLIEST

Answers

Answer:

C!

Step-by-step explanation:

I Got it correct! I hope you have a wondeful weekend and Day!!!

70 POINTS ANSWER QUICK! PLEASE PLEASE
Dilate the figure below by a scale factor of 1/2 and provide the points for the new image.
What is f, e, g,?

Answers

Step-by-step explanation:

F -2,4

E -2,-2

G 4,-4

is the answer

Answer:

f -2,4

e -2,-2

g 4,-4

Step-by-step explanation:

What is a fraction equivalent to 4/4? Explain how you know.

Answers

Answer:  Any number over itself is equivlent to 4/4.

Examples: 3/3, 18/18, 5/5, 90/90

Step-by-step explanation:

Because 4/4 is equivalent to 1 whole.

A fraction that is equivalent to 4/4 would be, 5/5 as, After simplifying the fraction 5/5 is equal to 1.

A fraction is a part of the whole number and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called a fraction.

Given that,

The fraction is,

⇒ 4/4

Now, after simplifying the fraction we get;

⇒ 4/4

⇒ 1

So, Let a fraction that is equivalent to 4/4 would be;

⇒ 5/5

After simplifying we get;

⇒ 5/5 = 1

Therefore, A fraction that is equivalent to 4/4 would be, 5/5

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A box contains 2 purple marbles, 2 blue marbles, 3 green marbles, and 5 red marbles. What is the probability of picking a green marble?

Answers

Answer:

0.25

Step-by-step explanation:

The total number of marbles is 2 + 2 + 3+ 5 = 12

the number of green ones is 3

So the probability of green = 3/12 = 1/4 = 0.25

Answer:

Red

Step-by-step explanation:

Because it was most pick the first time

percent change of 14 books to 40 books

Answers

Answer:

185.714285714%

A change from 14 to 40 represents a positive change (increase) of 185.71428571428572%

36 percent sorry if I’m wrong but pls mark me brainleast

Can you help me please

Answers

Answer:

f(-4)=3(4)^2-5(4)

16*3-20

48-20

f(-4)=28

Alexa bought 25 pounds of turkey for $26.25. What is the cost per
pound?

Answers

Answer:

$1.05 Per Pound

Step-by-step explanation:

Answer: $1.05/pound

Step-by-step explanation:

$26.25 / 25 = $1.05

How can we find how many inches wide the coat box is?

Answers

Answer:

First we found the sum of 15.438 and 3.18. The subtract the answer from 32.476.

Option A is correct.

Step-by-step explanation:

The total width of box is = 32.476

Width of box of T-shirts = 15.438

Width of box of Socks = 3.18

We need to find width of coat box.

The width of coat box can be found as:

Total Width = Width of box of T-shirts + Width of box of Socks + width of coat box

32.476 = 15.438 + 3.18 + width of coat box

32.476 = 18.618 + width of coat box

width of coat box= 32.476 - 18.618

width of coat box = 13.858

So, The Width of coat box = 13.858 inches

First we found the sum of 15.438 and 3.18. The subtract the answer from 32.476.

Option A is correct.

BD = ED, CD = FD, Prove BC = EF

Answers

HL postulate is the answer

Question 13 (1 point)
A jug contains 74.1 ounces of fruit punch. If the punch is evenly distributed to six people, how
many ounces will each person get?
oz.
Blank 1:

Answers

Answer:

each person gets 12.35oz

Step-by-step explanation:

74.1

6

=12.35

Answer:

12.35 oz

Step-by-step explanation:

74.1 divided by 6 equals 12.35

solve for x.

12x/5=18

A.x = 43 1/5
B.x =7 1/2
C.x =-7 1/2

Answers

The answer is B. 7 1/2

Determine whether the triangles are congruent by sss sas asa aas or hl

Answers

Answer:

the answer is they are congruent

what is the solution of the following? *
-4 = 16
Infinite solutions
no solution

Answers

Answer: no solution

Hope this helps and good luck :)

Step-by-step explanation:

Can smoke please help me with this I need help I’ll give brainliest

Answers

Answer:

only one solution at x=0

Step-by-step explanation:

I need help no jokes plz

Answers

Answer:

[tex]\huge\boxed{\sf No}[/tex]

Step-by-step explanation:

These triangles are not similar because their angles are not equal.

Conditions for two or more triangles to be similar:

1) Their angles are congruent or equal.

2) Their sides are proportional.

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AnonymousHelper1807

Translate the sentence into an equation. Four less than a number is 17. Which equation is correct?
x - 17 = 4
X - 4 = 17
x + 4 = 17
x + 17 = 4​

Answers

Your answer would be x-4=17.
4 less than (#) is 17.

That number would be 21.

21-4=17

Hope that helps

Answer:

b

Step-by-step explanation:

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