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3 years ago

Questions and answers are below plz help ASAP (As Soon As Possible) Reward for helping is to be brainlyest and 15 pts

Mathematics

1 answer:

Alenkasestr [34]3 years ago

6 0

So what are you trying to answer ?

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Solving Equations with the Distributive Property - Item 1041

Ivan

Answer:

a = 1

Step-by-step explanation:

7*9 =

We can rewrite 9 as 10-1

7 * (10-1)

7 * 10 - 7*1

a = 1

8 0

4 years ago

A system of inequalities is graphed on the coordinate grid. Which symbol could be written in both circles in order to represent

Vlad1618 [11]

Its the third answer

8 0

3 years ago

Read 2 more answers

Find the y-intercept and the vertex of y+-x^2+6x-8 using standard form

VARVARA [1.3K]

Answer:

-x^2+y+6x-8

hope this helps

6 0

3 years ago

One common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a B, 2 points to a C, 1 po

Dafna1 [17]

GPA = 3.59

For calculating the GPA, first calculate the quality points for each grade and course and then add them up like shown below:

A - 4 points x 33 credit hours = 132 quality points

B - ( 3 points x 2 credit hours ) x 3 (because there are 3 courses) = 18 quality points

C - 2 points x 3 credits = 6 quality points

D - 1 point x 2 credits = 2 quality points

Now add up all the quality points = 132 + 18 + 6 + 2 = 158

Add the credit hours as well = 33 + 6 + 3 + 2 = 44

Divide the total quality points by total credit hours to get the GPA = 158/44 = 3.59

6 0

3 years ago

Six ninth-grade students and six 12th-grade students were asked: How many movies have you seen this month? Here are their respon

steposvetlana [31]

Answer:

Following are the solution to the given point:

Step-by-step explanation:

Grade of students:

Grade of student:

In point a:

Grade of $9^{th}$ students:

$\to n= 6\\\\\to Mean = \frac{ \sum x_i}{n} \\\\$

$= \frac{ 5+1+2+5+2+8}{6}\\\\ = \frac{24}{6}\\\\ = 4$

$\to Variance\\\\\sigma^2 = \frac{\sum(x_i -\bar{x})^2}{n-1}$

$=\frac{1}{5}(10)\\\\=2$

$\to Standard \ deviation ( \sigma) :\\\\= \sqrt{\sigma^2}\\\\= \sqrt{2}\\\\= 1.141$

Since the Grade of $9^{th}$ student's variance is higher than $12^{th}$ grade,

In point b:

Please find the attached file.

The plot above shows that the student of the ninth grade is spread more widely, as the student from 0-8 to 12 is from 0-4.

5 0

3 years ago