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2 years ago

Find an equation in point slope form that passes through the points -1,3 and 1,7 show all your work

Mathematics

1 answer:

liberstina [14]2 years ago

4 0

Answer:

Step-by-step explanation:

1. Find the slope:

7 -3/ 1 + 1 = 4/2 = 2 = m

2. Find b by plugging in the m and one of the points given into y = mx + b

7 = 2 ( 1 ) + b

7 = 2 + b

5 = b

3. Write the equation using the m and the b you just found

y =2 x + 5

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Find the percent increase. Round to the nearest percent. From 85 books to 143 books The percent increase is

klasskru [66]

We are given :

Initial = 86
Final = 143

Let's find the percent increase with the help of formula:

$\boxed{ \sf \: formula : 100 \times \frac{(final - initial)}{initial} }$

$\red{ \rule{35pt}{2pt}} \orange{ \rule{35pt}{2pt}} \color{yellow}{ \rule{35pt} {2pt}} \green{ \rule{35pt} {2pt}} \blue{ \rule{35pt} {2pt}} \purple{ \rule{35pt} {2pt}}$

$\tt \% \: increase = 100 \times \frac{(143 - 85)}{85}$

$\tt \% \: increase = 100 \times \frac{58}{85}$

$\tt\% \: increase = 20 \times \frac{58}{17}$

$\tt\% \: increase = \frac{1160}{17}$

$\tt\% \:increase = 6823.53$

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2 years ago

hi i like cheesi like cheese e i like chi like cheese eese i like cheese i like cheesi liki like cheese e cheei like chi lii lik

adelina 88 [10]

Here's a Rhyme.....

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2 years ago

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mars1129 [50]

$(x+3)^{2}=19$

7 0

2 years ago

A rectangle has the length that is five times longer than it’s width. If the perimeter of the rectangle is 12 inches, whats the

NemiM [27]

The width would be 1 inch.

Given: L = length = 5W; P = perimeter = 2(L+W) = 12 inches
Required: W = width;
Formula: P=2(L+W)
Solution:
12 in = 2 (L + W)
6 in = L + W
6 in = 5W + W
6 in = 6W
1 in = W
Cross check:
P = 2(L + W)
12 in = 2(5 in + 1 in)
12 in = 2(6 in)
12 in = 12 in

7 0

3 years ago

In a church wing with 8 men and 10 women members find the probability that a 5 member committee chosen randomly will have.......

Sergeeva-Olga [200]

Answer:

a) Probability that a 5 member committee will have all men = 0.0065

b) probability that a 5 member committee chosen randomly will have 3 men and 2 women = 0.294

Step-by-step explanation:

Number of men = 8

Number of women = 10

Total number of members = 10 + 8 = 18

Probability = (Number of possible outcomes)/(Total number of outcomes)

Number of ways of selecting a 5 member committee from 18 people = $^{18}C_5 = \frac{18!}{(18-5)!5!} = \frac{18!}{13!5!}$ = 8568 ways

a) Probability that a 5 member committee will have all men

Number of ways of selecting 5 men from 8 men

= $^8C_5 = \frac{8!}{(8-5)!5!} = \frac{8!}{3!5!}$ = 56 ways

Probability that a 5 member committee will have all men = 56/8568

Probability that a 5 member committee will have all men = 0.0065

b)probability that a 5 member committee chosen randomly will have 3men and 2 women

Number of ways of selecting 3 men from 8 men

= $^8C_3 = \frac{8!}{(8-3)!3!} = \frac{8!}{5!3!}$ = 56 ways

Number of ways of selecting 2 women from 10 men

= $^{10}C_2 = \frac{10!}{(10-2)!2!} = \frac{10!}{8!2!}$ = 45 ways

Number of ways of selecting 3 men and 2 women = 56*45

Number of ways of selecting 3 men and 2 women = 2520

Probability of selecting 3 men and 2 women = 2520/8568 = 0.294

probability that a 5 member committee chosen randomly will have 3 men and 2 women = 0.294

6 0

3 years ago