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3 years ago

Pleaseeeee help with 7-12 I’m strugglingggg!!!

Mathematics

2 answers:

Troyanec [42]3 years ago

7 0

7) go right 5 then up 3 and make a dot at that point and then go right 10 then go up 8 then make a dot at that point an then connect the dots

8) go left 5 then go up 14 and make a dot and then go left 1 and up 2 then make a dot and connect the dots

9) go left 5 and up 6 then make a dot at that point and then go right 8 and up 6 and make a dot and then connect the dots

10) go left 4 and down 17 then make a dot then go left 4 and down 3 and make a dot and then connect the dots

11) go right 12 and down 7 and make a dot then go right 2 and down 2 and make a dot then connect the dots

12) go left 3 then down 10 and make a dot then go left 1 and down 1 and make a dot then connect the dots.

So basically just graph the points the connect them for each each problem

bearhunter [10]3 years ago

5 0

Answer:

7-12 is 5

Step-by-step explanation:

First you want to turn this into addition and make 12 it's inverse 7+(-12) now with 7+(-12) it is basically 12-7. 12-7=5 so your answer is 5

You might be interested in

What is the quadratic equation of the curve of best fit shown below

Kisachek [45]

First off, we know that the y-interecept is 2, so there is going to be a plus two in the final equation. Now with the two answers input the number 8 to see which will output 6.

6 = 1/12(8)^(2) + 2
6 = 1/12(64) + 2
6 = 64/12 + 2
6 = 16/3 + 6/3
6 does not equal 22/3

6 = 1/16(8)^(2) + 2
6 = 1/12(64) + 2
6 = 64/16 + 2
6 = 4 + 2
6 = 6
This means that y = 1/16 x^2 + 2 is the correct answer. I hope that helps!

4 0

3 years ago

Mr. Kohl has a breaker containing n milliliters of solution to distribute to the students in his chemistry class. If he gives ea

77julia77 [94]

Answer:

There were 26 students in his class and the teacher had 83 ml of the solution.

Step-by-step explanation:

Mr. Kohl has a "x" amount of solution, if he divides it by the number of students "n" he'll give each student 3 milliliters and have a left over of 5 milliliters. If the amount of solution Mr. Kohl had was "x + 21" then he'd be able to give each student 4 milliliters of the solution. From these informations we have:

x = 3*n + 5

(x + 21)/n = 4

x + 21 = 4*n

x = 4*n - 21

Now that we have two equations and two variables we can solve the system of equations, as seen bellow:

3*n + 5 = 4*n - 21

3*n - 4*n = -21 - 5

-n = -26

n = 26

x = 4*26 - 21 = 83 ml

There were 26 students in his class and the teacher had 83 ml of the solution.

3 0

3 years ago

Use Cramer's Rule to solve the following system: –2x – 6y = –26 5x + 2y = 13

andriy [413]

$\bf \begin{cases}
-2x-6y&=-26\\
\quad 5x+2y&=13
\end{cases}\stackrel{\textit{determinant of the coefficients}}{D=
\begin{bmatrix}
-2&-6\\5&2
\end{bmatrix}}\implies (-4)-(-30)
\\\\\\
D=-4+30\implies \boxed{D=26}\\\\
-------------------------------\\\\$

$\bf x=\cfrac{D_x}{D}\implies x=\cfrac{
\begin{bmatrix}
\boxed{-26}&-6\\\\ \boxed{13}&2
\end{bmatrix}}{D}\implies x=\cfrac{(-52)-(-78)}{26}
\\\\\\
x=\cfrac{-52+78}{26}\implies x=\cfrac{26}{26}\implies \boxed{x=1}\\\\
-------------------------------\\\\
y=\cfrac{D_y}{D}\implies y=\cfrac{
\begin{bmatrix}
-2&\boxed{-26}\\\\ 5&\boxed{13}
\end{bmatrix}}{D}\implies y=\cfrac{(-26)-(-130)}{26}
\\\\\\
y=\cfrac{-26+130}{26}\implies y=\cfrac{104}{26}\implies \boxed{y=4}$

4 0

3 years ago

Find the distance between (-2, 3) & (-7, -7). Round to the nearest tenth.

andre [41]

Answer:

11.2 units

Step-by-step explanation:

From (-7, -7) to (-2, 3) is 5 units horizontally and 10 units vertically. Thus we have a right triangle with sides 5 and 10 respectively. The length of the hypotenuse of this triangle is the distance between (-2, 3) & (-7, -7):

d = √(5² + 10²) = √(25 + 100) = √125 = √25√5, or 5√5.

This is approximately 11.2 units

6 0

3 years ago

Read 2 more answers

Your math teacher allows you to choose the most favorable measure of central tendency of your test scores to determine your grad

AlexFokin [52]

Answer: 89

Step-by-step explanation:

Since the tests scores are 89, 81, 85, 82, 89, and 89. The measure of central tendency are:

Mean = (89 + 81 + 85 + 82 + 89 + 89) / 5

= 515/6

= 85.83

Median = 89, 81, 85, 82, 89, and 89. We'll rearrange the numbers which will be:

81, 82, 85, 89, 89 and 89

Median = 85+89/2

= 174/2

= 87

Mode = 89 which appears most.

Since the math teacher allows me to choose the most favorable measure of central tendency, I'll choose the mode since it gives a higher score.

7 0

3 years ago