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3 years ago

15

Find the slope of the line through each pair of points

2 answers:

Lelechka [254]3 years ago

6 0

y2-y1/x2-x1
13-20/ 17-6= -7/ 11

Maurinko [17]3 years ago

4 0

$m= \frac{ y_{2} - y_{1} }{ x_{2}- x_{1} }$

Using this formula and plugging in the points, we get:

$m= \frac{ 13 - 20 }{17-6}= \frac{-7}{11}$

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Hey can someone help me with this ASAP this is really hard

Sergeu [11.5K]

U should come up with the equation 13+1.50x=35.50
the x representing the amount of rides and the one point five represents the cost of the rides
solve the equation and it should give u the answer which should be x=15.
the amount of rides is 15 rides after paying for the entrance( took this answer from someone )

3 0

3 years ago

Rachel works a day job and an evening job. She works 77 hours every two weeks. The ratio of the hours she works at her day job t

Nadusha1986 [10]

Answer:

1680 dollars

Step-by-step explanation:

$7 + 4 = 11$

$77 \div 11 = 7$

$day \: 7 \times 7 = 49h$

$evening \: 7 \times 4 = 28h$

$24 \div 4 = 6$

$6 \times 3 = 18 (hourly \: pay \: of \: evening \: job)$

$24 \times 49 = 1176$

$28 \times 18 = 504$

$total \: 1176 + 504 = 1680$

4 0

3 years ago

Construct the 99% confidence interval estimate of the population proportion p if the sample size is n=900 and the number of succ

oee [108]

Answer:

An 99% confidence interval of the given proportion

(0.355 , 0.385)

Step-by-step explanation:

Given sample size n= 900

the number of successes in the sample is x=333

The proportion P = $\frac{x}{n} = \frac{333}{900} = 0.37$

Q = 1-P =1 - 0.37 = 0.63

<u>Confidence interval</u>:-

99% of confidence interval zα = 2.93

$(P - z_{\alpha } \sqrt{\frac{PQ}{n} } , P + z_{\alpha } \sqrt{\frac{PQ}{n} })$

$(0.37 - 2.93 \sqrt{\frac{0.37(0.63}{900} } ,0.37 +2.93 \sqrt{\frac{0.37(0.63}{900} } })$

(0.37 - 0.015 , 0.37 + 0.015)

(0.355 , 0.385)

<u>Conclusion</u>:-

<u>An 99% Confidence interval (0.355 , 0.385)</u>

7 0

3 years ago

What is an efficient way to compute 47^2–37^2 without using raw calculations?

e-lub [12.9K]

Answer:

(47+37)(47-37)

Step-by-step explanation:

47^2-37^2 is a difference of two squares. a^2-b^2 = (a+b)(a-b) so this expression can be factored to (47+37)(47-37) = (84)(10) = 840

6 0

2 years ago

What is <br> 12 m/mi = cm/s

yarga [219]

<em>1 Cancel m.</em>

12i=c*m/s

<em>2 Use rule a*b/c = ab/c</em>

12i=cm/s

<em>3 Multiply both sides by s.</em>

12is=cm

<em>4 Divide both sides by 12.</em>

is=cm/12

<em>5 Divide both sides by i</em>

s=cm/12/i

<em>6 Simplify cm/12/i</em>

s=sm/12i

4 0

2 years ago