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3 years ago

1. Find the slope using points: (2, 2) and (-5, 4)

Mathematics

2 answers:

dedylja [7]3 years ago

8 0

The answer is m=-2/7

Because:
M= rise/run
m=2/-5-(2)
And you get m=-2/7 hope this helps

IrinaK [193]3 years ago

3 0

Answer:-2/7

Step-by-step explanation:

m=y2-y1/x2-x1

m=slope

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Why is the square root of 144 rational

Vitek1552 [10]

The square root of 144= 12. 12 is an integer, integers are always rational since they can be written into a fraction.

7 0

3 years ago

Alison bought 12 cases for a party. She gave the cashier $30 and was given $3.24 in change. How much did Alison pay for one case

Archy [21]

Answer:

$2.23

Step-by-step explanation:

30 - 3.24 = 26.76

26.76 ÷ 12 = 2.23

6 0

3 years ago

Read 2 more answers

Suppose a compact disk (CD) you just purchased has 1515 tracks. After listening to the CD, you decide that you like 66 of the

stepladder [879]

Answer:

(A) 0.4196

(B) 0.2398

(C) 0.0020

Step-by-step explanation:

Given,

Total songs = 15,

Liked songs = 6,

So, not liked songs = 15 - 6 = 9

If any 5 songs are played,

Then the total number of ways = $^{15}C_5$

(A) Number of ways of choosing 2 liked songs = $^6C_2\times ^9C_3$

Since,

$\text{Probability}=\frac{\text{Favourable outcomes}}{\text{Total outcomes}}$

Thus, the probability of choosing 3 females and 2 males = $\frac{ ^6C_2\times ^9C_3}{^{15}C_5}$

$=\frac{\frac{6!}{2!4!}\times \frac{9!}{3!6!}}{\frac{15!}{10!5!}}$

= 0.4196

Similarly,

(B)

The probability of choosing 3 liked songs = $\frac{ ^6C_3\times ^9C_2}{^{15}C_5}$

$=\frac{\frac{6!}{3!3!}\times \frac{9!}{2!7!}}{\frac{15!}{10!5!}}$

= 0.2398

(C)

The probability of choosing 5 liked songs = $\frac{ ^6C_5\times ^9C_0}{^{15}C_5}$

$=\frac{\frac{6!}{5!1!}}{\frac{15!}{5!10!}}$

≈ 0.0020

3 0

3 years ago

Which expression is equivalent to 8x − 2x + 4 and why

forsale [732]

Combine like terms

8x - 2x = 6x

6x + 4 is your expression.

You cannot combine 4 and 6x together, because one has a variable, and the other does not.

hope this helps

5 0

3 years ago

Thanks to anyone who answers this

dolphi86 [110]

U set up x+10+60=180 u get 60 by subtracting 180 and 120
x+10+60=180
x+70=180
-70 -70
x= 110
if i'm not mistaken that's how you do it

7 0

2 years ago