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evablogger [386]
4 years ago
13

Help with math question please

Mathematics
1 answer:
Gemiola [76]4 years ago
7 0

Answer:

C) 3/4

Step-by-step explanation:

The equation for rate of change is (y2-y1)÷(x2-x1)  These numbers come from two ordered pairs off the table of your choice (x1,y1) (x2,y2). I used the first two rows of the table so my two order pairs are (-8,-12)=(x1,y1) and (8,0)=(x2,y2) Next i plugged the ordered pairs into the equation:

0-(-12) ÷ 8-(-8)        

In both the numerator(top) and the denominator(bottom) are subtracting a negative which is the same as adding so the fraction is 12/16. This can be further simplified by dividing the top and bottom by 4 to get the final answer of 3/4

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I NEED HELP PLZ WILL GIVE BRAINLIST FOR CORRECT ANSWER (NO LINKS)
Elena-2011 [213]

Answer:

n=6

Step-by-step explanation:

Six plus three = six

....

4 0
3 years ago
95 students choose to attend one of three after school activities: footbal,l tennis or running. There are 28 boys. 38 students c
liberstina [14]

Answer:

34/95

Step-by-step explanation:

Since 38 students choose football and 23 students chose tennis, then 95 - 38 - 23 = 34 students chose running. The probability is 34 / 95.

6 0
4 years ago
PLEASEE HELPPP!!!
Harlamova29_29 [7]

Answer:

The amount is $649.46 and the interest is $49.46.

Step-by-step explanation:

STEP 1: To find amount we use formula:

A=P(1+rn)n⋅t

A = total amount  

P = principal or amount of money deposited,

r = annual interest rate  

n = number of times compounded per year

t = time in years

In this example we have

P=$600 , r=8% , n=4 and t=1 years

After plugging the given information we have

AAAA=600(1+0.084)4⋅1=600⋅1.024=600⋅1.082432=649.46

STEP 2: To find interest we use formula A=P+I, since A=649.46 and P = 600 we have:

A649.46II=P+I=600+I=649.46−600=49.46

5 0
4 years ago
The coordinates of quadrilateral PQRS are P(–3, 0), Q(0, 4), R(4, 1), and S(1, –3). What best describes the quadrilateral?
denis-greek [22]

Answer:

Square

Step-by-step explanation:

Plot the vertices of the quadrilateral PQRS on the coordinate plane (see attached diagram). The diagram shows that this is a square. Let's prove it.

1. Find all sides lengths:

PQ=\sqrt{(-3-0)^2+(0-4)^2}=\sqrt{(-3)^2+(-4)^2}=\sqrt{9+16}=\sqrt{25}=5\\ \\QR=\sqrt{(0-4)^2+(4-1)^2}=\sqrt{(-4)^2+(3)^2}=\sqrt{16+9}=\sqrt{25}=5\\ \\RS=\sqrt{(4-1)^2+(1-(-3))^2}=\sqrt{(3)^2+(4)^2}=\sqrt{9+16}=\sqrt{25}=5\\ \\SP=\sqrt{(1-(-3))^2+(-3-0)^2}=\sqrt{(4)^2+(-3)^2}=\sqrt{16+9}=\sqrt{25}=5

All sides have the same lengths.

2. Find the slopes of all lines:

PQ:\ \dfrac{4-0}{0-(-3)}=\dfrac{4}{3}\\ \\QR:\ \dfrac{1-4}{4-0}=-\dfrac{3}{4}\\ \\RS:\ \dfrac{-3-1}{1-4}=\dfrac{4}{3}\\ \\SP:\ \dfrac{0-(-3)}{-3-1}=-\dfrac{3}{4}

Since the slopes of PQ and RS are the same, lines PQ and RS are parallel. Since the slopes of QR and SP are the same, lines QR and SP are parallel.

The slopes \frac{4}{3} and -\frac{3}{4} have the product of

-\dfrac{3}{4}\cdot \dfrac{4}{3}=-1,

then lines are pairwise perpendicular.

This means PQRS is a square.

4 0
4 years ago
A professional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of
noname [10]

Answer:

The answer is A). I took the test on usatestprep

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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