PLEASE HELP ME WITH MY PRE ALGEBRA!!!​

Step-by-step explanation:

I hope it will help you so .

Answer:

He would weigh 218.5 pounds on Jupiter

Step-by-step explanation:

If objects weigh 2.3 times as much on Jupiter then you multiply Joey's weight by 2.3.

Answer: 218.5 pounds

Step-by-step explanation: If objects on Jupiter weigh 2.3 times their weight on Earth and if Joey weighs 95 pounds on Earth, he would weigh 2.3 times of his weight on Earth on Jupiter. 2.3 times 95 pounds would be 218.5 pounds. Joey would weigh 218.5 pounds on Jupiter.

Answer:

31.4cm

Step-by-step explanation:

Use 2 pie r

Mean of total 5 digits is 18.6

Given:

Mean of first 3 digit = 19

Mean of next 2 digit = 18

Find:

Mean of total 5 digits

Computation:

Sum of first 3 digit = Mean of first 3 digit × Number of digits

Sum of first 3 digit = 19 × 3

Sum of first 3 digit = 57

Sum of next 2 digit = Mean of first 3 digit × Number of digits

Sum of next 2 digit = 18 × 2

Sum of next 2 digit = 36

Total of 5 digit = Sum of first 3 digit + Sum of next 2 digit

Total of 5 digit = 57 + 36

Total of 5 digit = 93

Mean of total 5 digits = Total of 5 digit / 5

Mean of total 5 digits = 93 / 5

Mean of total 5 digits = 18.6

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The answer is "mean of all 5 digits is 18.6" and the further calculation can be defined as follows:

Mean of 3 digits:

[tex]\to \bold{\frac{a+b+c}{3}}=19[/tex]

Mean of 2 digits:

[tex]\to \bold{\frac{d+e}{2}}=18[/tex]

Find:

Mean of all 5 digits =?

Calculating the sum of 3 digits:

[tex]\to \bold{\frac{a+b+c}{3}}=19\\\\\to \bold{a+b+c}=19 \times 3\\\\\to \bold{a+b+c}=57\\\\[/tex]

Calculating the sum of 2 digits:

[tex]\to \bold{\frac{d+e}{2}}=18\\\\\to \bold{d+e}=18\times 2\\\\\to \bold{d+e}=36\\\\[/tex]

Calculating the Mean of all 5 digits:

[tex]\to \bold{\frac{a+b+c+d+e}{5}}= \bold{\frac{57+36}{5}}[/tex]

                       [tex]= \bold{\frac{93}{5}}\\\\=\bold{18.6}[/tex]

So, the mean of all 5 digits is "18.6".

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Answer:

It represents the total amount that Erin is going to spend at the store.

Step-by-step explanation:

Step-by-step explanation:

1 & 2 are on the attachment

3 --------------

4)4x+5=17

 5x+5=20

5)2x+15+85+x+20=180

   3x+120              =180-120

                        3x=60

                          x=20 degrees

6)son's age=x

  3x+x=48

   4x=48

    x=12            

Therefore; son's age=12 years old

                  Mr.Robert age=12*3

                                           =36 years old

Hope this helps you

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Answer:

66

Step-by-step explanation:

If there are  n  students, then the number of pairs is [tex]\frac{n(n-1)}{2}[/tex].

With 12 students, [tex]\frac{12(12-1)}{2} = \frac{132}{2}=66[/tex] pairs can be formed.

The reason the formula works is this:  Each of the 12 students can be paired with 11 other students (no student is paired with him/her self).  But counting 12 x 11 = 132  counts each pair twice.  Example: student A can be paired with student B,..., student B can be paired with student A.  The pair was counted two times.

See the attached image that shows pairings of 5 students.  There are

5(5 - 1)/2 = 5(4)/2 = 10 pairs.

Answer:

0.0081031308

Step-by-step explanation:

Answer:

G

Step-by-step explanation:

three line segments : HI, EF, and JG,

intersect in one point => G

Three axis given

[tex]\\ \sf\longmapsto \overleftrightarrow{HI}[/tex]

[tex]\\ \sf\longmapsto \overleftrightarrow{EF}[/tex]

[tex]\\ \sf\longmapsto \overleftrightarrow{GJ}[/tex]

Now

All are intersected at one point G

Answer:

y = 18

Step-by-step explanation:

y/3 - 4 = 2

y/3 = 6

y = 18

Answer:

5 words a second because 5÷25 is 5 so in 1 second she reads 5 words

Answer:

Hi, there!

Option A. 3.2 x 10²

Step-by-step explanation:

320 written in scientific notation is 3.2 × 102.

Equations are used to show the relationship between variables (usually x and y). The true statement about f(x) is that the range of f(x) is [tex]y \ge -8[/tex]

Given that:

[tex]f(x) = 2(x - 2)^2 - 8[/tex]

To identify the true statement, I will make use of graphical method.

See attachment for the graph of [tex]f(x) = 2(x - 2)^2 - 8[/tex]

From the attached graph, we can see that the graph as a minimum at:

[tex](x,y) = (2,-8)[/tex]

And it opens upward.

This implies that the minimum y-value of f(x) is at -8, and it has no maximum.

In other words, the range of the function is:

[tex]f(x) \ge -8[/tex]

Hence, the true statement is option (a):

The range of f(x) is [tex]y \ge -8[/tex]

Read more about equations at:

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Answer:

I think that the answer is 19.

Step-by-step explanation:

Writing out the problem

x²+yz

Substituting the given values of the variables

(-3)²+(5)(2)

Simplifying (-3)², which is 9

9+(5)(2)

5 times 2 equals 10

9+10

19

I hope this helped you. Enjoy your day, and take care :)

Answer:

Step-by-step explanation:

Answer: 0.86

Step-by-step explanation:

Answer:

Step-by-step explanation:

Dividing the segments, it is found that:

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

[tex]K - J = \frac{1}{n}(J - L)[/tex]

And this is the answer to option b.

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

Option a:

If [tex]\mathbf{n = 4}[/tex], it has that:

[tex]K - J = \frac{1}{4}(J - L)[/tex]

This is applied to find both the x-coordinate and the y-coordinate of K.

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

Thus:

[tex]K - J = \frac{1}{4}(J - L)[/tex]

[tex]x - 4 = \frac{1}{4}(4 - 0)[/tex]

[tex]x - 4 = 1[/tex]

[tex]x = 5[/tex]

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

Thus:

[tex]K - J = \frac{1}{4}(J - L)[/tex]

[tex]y - (-5) = \frac{1}{4}(-5 - (-7))[/tex]

[tex]y + 5 = \frac{2}{4}[/tex]

[tex]y = \frac{1}{2} - 5[/tex]

[tex]y = \frac{1}{2} - \frac{10}[2}[/tex]

[tex]y = -\frac{9}{2}[/tex]

The coordinates of K if n = 4 are [tex](5,-frac{9}{2})[/tex]

A similar problem is given at https://brainly.com/question/20847604

Answer:

The average annual cumulative rainfall is  [tex]1[/tex] inch per month.

During month of August average rain fall is greatest because slope in this month is maximum.

Step-by-step explanation:

The graph does not represent cumulative rainfall as a function of day.

Because they have average all values for month Total cumulative rainfall is [tex]12[/tex] inches.

Total period is [tex]12[/tex] month

So average annual cumulative rainfall is

[tex]$12 / 12=1$[/tex] inch per month

Average rain fall in month of December= (average cumulative rainfall in December[tex])-([/tex]average  cumulative rainfall in November)

[tex]=12-11[/tex]

[tex]$=1$[/tex] inch

During month of August average rain fall is greatest because slope in this month is maximum.

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9514 1404 393

Answer:

  E

Step-by-step explanation:

You can see from the first and last points that the data set demonstrates a slight upward trend. That means the slope of the regression line will be near +1, eliminating all choices except A and E.

The y-intercept of such a line will not be negative, eliminating choice A, leaving choice E as the only reasonable option.

__

If you input this data to a suitable calculator or spreadsheet, it can find the parameters of the regression line for you. (We presume you have been introduced to such tools.) My graphing calculator gave the results shown below, confirming E is the correct choice.

Answer:

W = 1.06 MJ

Step-by-step explanation:

- We will use differential calculus to solve this problem.

- Make a differential volume of water in the tank with thickness dx. We see as we traverse up or down the differential volume of water the side length is always constant, hence, its always 8.

- As for the width of the part w we see that it varies as we move up and down the differential element. We will draw a rectangle whose base axis is x and vertical axis is y. we will find the equation of the slant line that comes out to be y = 0.5*x. And the width spans towards both of the sides its going to be 2*y = x.

Step-by-step explanation:

4×2= 9x

8/9=x

Transposition

Answer:

x = 8/9

Step-by-step explanation:

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Answer:

52

Step-by-step explanation:

15+7+19+11+0=52

may help.

Convert into numbers

[tex]\\ \sf\longmapsto 15+7+19+13+11+0[/tex]

[tex]\\ \sf\longmapsto 22+32+11[/tex]

[tex]\\ \sf\longmapsto 55+11[/tex]

[tex]\\ \sf\longmapsto 66[/tex]

Answer:

As this is a quartic equation, we should expect four roots (although some may end being repeated). Notice also that the equation is symmetrical, which suggests that there might be an element of symmetry in the answer.

First, as this equation is a quadratic in terms of z2 , we can use our formula for finding the roots of a quadratic equation to give the value(s) of z2 . [If you have a problem seeing this, use the substitution y=z2 , and you get a quadratic in y .]

z2=−4±42−4×1×16√2×1=−4±16−64√2

=−4±−48√2=−2±12−−√i=−2±23–√i

=4(−12±3√2)i

=4(cos(2kπ3)+isin(2kπ3)) , where k∈1,2

=4e2kiπ3

As this is the value of z2 , whereas we want z , we need to take the square roots of both sides

z=4–√ekiπ3+nπ , where n∈0,1

=2e(k+3n)iπ3

=2cis((k+3n)iπ3)

As we have two values of k and two values of n , this gives us four solutions.

Writing these angles in terms of degrees, we have: 60, 120, 240 and 300

Evaluating, we end up with the four solutions

z=1±3–√i∪z=−1±3–√i

You can substitute z^2 = x,

Then you get x^2+4x+16=0

Step-by-step explanation:

z=1±3–√i∪z=−1±3–√i

You can substitute z^2 = x,

Then you get x^2+4x+16=0

Then you can use classical x1,2 = (-b +- √[b^2–4ac])/2a

X1,2=(-4+-√[16–16*4])/2

After you solve that you substitute back z^2 = x

Answer:

13x -9

Step-by-step explanation:

4x-1 + 9x-8

Combine like terms

4x +9x  -1-8

13x -9

Answer:

9x+−8+4x+−1

(9x+4x)+(−8+−1)

13x+−9

Step-by-step explanation:

so sorry if wrong

Answer:

94

Step-by-step explanation:

When a player reaches 101 points, they win. So that means that Mack reached 101 points. Since his opponent was seven points behind, we can subtract 7 from 101 to find Mark's, that is Mack's opponent's, score:

[tex]101-7=94[/tex]

Therefore, we can safely conjecture that Mark scored 94 points.

[tex]\qquad[/tex]2010_(nine)

[tex]\qquad[/tex]7716_(nine)

[tex]\qquad[/tex]+_________

[tex]\qquad[/tex]9726_(nine)

Keep nine stable and add the bases