pls help! will mark brainliest!

2x+12.8=117.6

We move all terms to the left:

2x+12.8-(117.6)=0

We add all the numbers together, and all the variables

2x-104.8=0

We move all terms containing x to the left, all other terms to the right

2x=104.8

x=104.8/2

x=52+0.8/2

Answer:

24.8

Step-by-step explanation:

Work Shown:

He eats ten 12-calorie crackers, so that is 10*12 = 120 calories total

If x is the number of 20-calorie cookies, then the total number of calories here is 20x. We want this to be 120, so,

20x = 120

x = 120/20 .... divide both sides by 20

x = 6

He must eat six 20-calorie cookies to get 120 calories total

Answer: 6 cookies

Step-by-step explanation:

First, multiply 10*12 to see how many calories he normally eats.

10*12 = 120

Then, divide by 20 to see how many cookies he can eat to keep the same number of calories.

120/20 = 6

Hope it helps <3

Answer:

The answer is D.

Step-by-step explanation:

-3(4x) = -12x, -3(-2) = -6, and then we have -2x. -12x - 6 - 2x simplified is

-14x - 6.

94,86,95,99,88,90

A. mean is 92

B. mean absolute deviation is 4

C. values differ from the mean by an average of 4

A.

94+86+95+99+88+90=552

552 divided by 6 = 92

mean = 92

C.

94-92=2

92-86=6

95-92=3

99-92=7

92-88=4

92-90=2

2+6+3+7+4+2=24

24 divided by 6 = 4

To estimate the volume using the Midpoint Rule with \(\displaystyle n=5\), we need to divide the interval \(\displaystyle 0\leq x\leq 1\) into \(\displaystyle n\) subintervals of equal width. Since \(\displaystyle n=5\), each subinterval will have a width of \(\displaystyle \Delta x=\frac{1-0}{5}=\frac{1}{5}\).

Now, let's calculate the volume using the Midpoint Rule. The formula for the volume obtained by rotating about the y-axis is:

\(\displaystyle V\approx 2\pi \sum _{i=1}^{n}y_{i}\Delta x\)

where \(\displaystyle y_{i}\) represents the value of the function \(\displaystyle y=\sqrt{1+x^{3}}\) evaluated at the midpoint of each subinterval.

First, let's find the midpoints of the subintervals. Since the width of each subinterval is \(\displaystyle \Delta x=\frac{1}{5}\), the midpoint of the \(\displaystyle i\)-th subinterval is given by:

\(\displaystyle x_{i}=\frac{\Delta x}{2}+\left( i-\frac{1}{2}\right) \Delta x=\frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\)

Substituting \(\displaystyle x_{i}\) into the function \(\displaystyle y=\sqrt{1+x^{3}}\), we obtain:

\(\displaystyle y_{i}=\sqrt{1+\left( \frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\right) ^{3}}\)

Now, we can calculate the approximate volume using the Midpoint Rule:

\(\displaystyle V\approx 2\pi \sum _{i=1}^{5}y_{i}\Delta x\)

Substituting the values of \(\displaystyle y_{i}\) and \(\displaystyle \Delta x\) into the formula, we can evaluate the sum and compute the estimated volume.

\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)

♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)

Answer:20

Step-by-step explanation:

Answer:

40 cm^3 is the answer

Step-by-step explanation:

5x2x4

Answer:

A. He made a mistake when subtracting 108 from 151.

Step-by-step explanation:

151-108=43. He put 53.

Answer:

answer is a correct me if im wrong

Step-by-step explanation:

Answer:

Option A is correct

Step-by-step explanation:

As both the coordinates are negative they will lie in 3rd quadrant.

Verified be my teacher as well.

Option A is right

Step-by-step explanation:

Given,

RSTU is a parallelogram,

so, we need to find the value of x,

let's find it,

2x+15 = x+15 (opposite side of parallelogram are equal and parallel)

2x - x = 15-15

x=0

Therefore, the value of x is 0.

If you have doubt. then let's clear it by putting the value of x.

so, 2×0+15 = 0+15

15=15 {as already said that the sides are equal}

proved..

so, the value of x is 0.

Hope it helps.....

Answer:

x=0

Step-by-step explanation:

Assuming the two sides are equal length

2x+15 =x+15

Subtract 15 from each side

2x =x

Subtract x from each side

2x-x = x-x

x=0

Answer:

Step-by-step explanation:

U should to length x width x height to find your answer

Answer:

A is 100%

B is 50%

C is 33.333%

D is 50%

E is 200%

F is 66.666

Step-by-step explanation:

Answer:

d. 128 cm^3

Step-by-step explanation:

to find the volume its length time width times heights; so 4 cm times 4 cm time 4 cm which is 64. Since the dice are the same size you add 64 cm^3 to 64 cm^3 to get 128 cm^3

Answer:

domain: 1- infinity

range: 3- infinity

Step-by-step explanation:

it starts at 3,1 and increases

Answer:

Below in bold.

Step-by-step explanation:

The filled circle on the graph indicates that (3, 1) is included in the domain and range.

The Domain  is [3, infinity)

The Range is [1, infinity).

The square bracket indicates that the 3 and 1 are included in the domain and the range.

Answer:

Hello,

Answer B: 7

Step-by-step explanation:

In order to find f2), we don't need to know f^(-1) !!!

f(x)=3x+1

f(2)=3*2+1=6+1=7

Answer:

B

Step-by-step explanation:

To evaluate f(-2) plug 2 into f(x) so f(x)=3(2)+1 or 7.

Answer:

0.73

Step-by-step explanation:

A rational number is any kind of decimal, fraction, or negative number, or whole number. This is a decimal, so you can go from in-between 0.71-0.79, any of those numbers will work.

A rational number is a number that is expressed as the ratio of two integers,3/4 is the rational number between 0.7 and 0.8.

A rational number is a number that is expressed as the ratio of two integers, where the denominator should not be equal to zero

The given two rational numbers are 7/10 and 8/10 because

0.7 = 7/10 = 70/100 and 0.8 = 8/10 = 80/100

So any proper fraction between 70/100 and 80/100

Let us consider 75/100 = 3/4

Squaring 3/4 we get  3/4×3/4 = 9/16

So 0.7 <sqrt(9/16) < 0.8

0.7 <0.75 < 0.8

Hence 3/4 is the rational number between 0.7 and 0.8.

To learn more on Rational Numbers click:

https://brainly.com/question/24398433

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The function for the points are  y = -15x - 5

From the information given, we have that;

The points are;

(1/3,0) (-2 3/4,0) and (0,-5)

Using the point-slope form of a linear equation, we have;

y - y₁ = m(x - x₁)

Such that;

Using (1/3, 0) and (0, -5), we have that the slope is;

m = (0 - (-5))/0 -1/3)

expand the bracket

= 5 / (-1/3)

= -15

Now, take any of the given points and substitute the values

Using (1/3, 0), we get;

y - 0 = -15(x - 1/3).

y = -15x - 5.

Learn more about functions at: https://brainly.com/question/25638609

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The function for the points solved by  (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)

We have given the points:

(1/3,0) (-2 3/4,0) and (0,-5)

Using the formula of linear equation

\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)                                                          

Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)

that is 1/3 = \(a\), 0 = \(a_{1}\) and

0 = \(b\), -5 = \(b_{1}\)

\(x\) refers to the slope of line (take any variable)

Now for finding the value of \(x\),

\(x=a-a_{1}/b-b_{1}\)

inserting the values,

\(x=[0-[-5]]/[0-1/3]\\x= -15\)

Substitute the value of \(x\) in the equation

\(a-0=-15[b-1/3]\)

By simplifying the equation, we get

\(a=-15b-5\)

To know more about functions and points:

https://brainly.com/question/30721594

Answer:

10y+5n+3/6 im not too sure but I think its correct

btw envision gives you a try again

Answer:

Option #4

Step-by-step explanation:

Expand option #4

=-3(1-2x)

=-3 -2x*-3

=-3+6x which is what your original equation was.

Ours are mixed, but here.

Sorry, im late. If anyone cant see the picture then I wrote it out for you all.

(1/5)x goes to (x)/5

5 ÷x goes to 5/x

x/2 goes to (1/2)x

and

(x)(2) goes to 2x

Hope this helped.

The volume of the original box is given as

V = lwh

V = 10(6)(3)

V = 180 in³

Answer:

3 quarters 2 dimes

Step-by-step explanation:

has to end with a 5 so 25x3=75 then add twenty which would be two dimes

Answer:

3 q  and 2 dimes

Step-by-step explanation:

Answer:

Step-by-step explanation:

volume of water=l×w×h

l=length of tank=36 in

w=width of tank=18 in

h=height of water=14 in

volume=36×18×14

=9072 in³

Answer:

Step-by-step explanation:

7/9

Taub can drink 7/9 glasses in 1/10 of an hr, you want to know how much she can drink in 1 hr

multiply 7/9 by 10 = 70/9

the number line will be:

7/9 14/9 21/9 28/9 35/9 42/9 49/9 56/9 63/9 70/9

1/10 2/10 3/10 4/10 5/10 6/10   7/10   8/10   9/10   10/10

Step-by-step explanation:

We can set up a ratio

\( \frac{7}{9} = \frac{x}{12} \)

Next we cross multiply

\(9x = 84\)

\(x = 9 \frac{1}{3} \)

So he drinks 9 1/3 ounces of water in 1/10. To go from 1/10 to 10/10, you multiply by 10. So we will do that to the ounces.

\(9 \frac{1}{3} \times 10 = 93 \frac{1}{3} \)

Lastly we divide by 12

\(93 \frac{1}{3} \div 12 = 7 \frac{7}{9} \)

I'm not sure how you are suppose to answer it, but here are the options

\(7 \frac{7}{9} = mixed\)

\( \frac{70}{9} = fraction\)

\(7.77 = whole \: number\)

Answer: The answer is false!

Step-by-step explanation: You may think its true but NO, its not true!

Answer: false

Step-by-step explanation:

the correct answer is a dialect of spanish, chilean spanish.

Answer:

The volume is 48 cubic inches

V=whl=4*2*6=48

Step-by-step explanation:

I hope this helps

Answer:

10+10 =20% i mite be wrong but that is ok

Step-by-step explanation:

Answer:

Airplane A has a lesser Interquartile range.

Step-by-step explanation:

To find the interquartile range, subtract the lower quartile from the upper quartile.

Airplane A = Upper quartile - lower quartile

Airplane A = 225 - 209 = 16

Airplane B = Upper quartile - lower quartile

Airplane B = 230 - 205 = 25

Therefore airplane a has a lesser interquartile range.