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3 years ago

5

What is the slope of the street line through points (2,10) and (5,8)

2 answers:

Crank3 years ago

6 0

Y=mx+b is the equation of a linear function, which is what this question is asking.

since you have 2 points, you can use this equation for solve for "m", the slope

y2-y1/x2-x1

this would be 10-5/8-2 in this case, which is 5/4
you now have 5/4 as your slope
you can then take one of your points, and substitute in for the original y=mx+b equation
8 = 5/4 * 5 + b
8 = 25/4 + b                multiply the fractions together (multiply across)
32 = 25 + b     (multiply both sides by 4 to eliminate the fraction
7 = b         ( subtract 25 from both sides )

Archy [21]3 years ago

3 0

The slope is -2/3. I hope this help c:

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Hi please help me with this i will give extra points

anzhelika [568]

Answer:

8:50

Step-by-step explanation:

the table shows when the buss that goes from point a to point b arrives

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2 years ago

1. Pat made muffins to b/ring to a party! She gave ⅙ of the muffins to her younger brothers. Her dad ate ⅛ of the muffins. What

tia_tia [17]

Answer:

17/24

Step-by-step explanation:

1 - (1/6 + 1/8) = 24/24 = (4/24 + 3/24) = 17/24

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2 years ago

What sample size is needed to give a margin of error within plus-or-minus 5% in estimating a population proportion with 90% conf

VARVARA [1.3K]

Answer: 271.

Step-by-step explanation:

When the prior population proportion of success is not available, then the formula to find the sample size is given by :-

$n=00.25(\dfrac{z_{\alpha/2}}{E})^2$

Given : Significance level : $\alpha: 1-0.90=0.1$

By using the standard normal distribution table ,

Critical value : $z_{\alpha/2}=1.645$

Margin of error : $E=0.05$

Then , the required minimum sample size will be :-

$n=0.25(\dfrac{(1.645)}{0.05})^2=270.6025\approx271$

Hence, the required minimum sample size is 271.

4 0

2 years ago

Hey y'all I have a question, who ia correct..? (If possibly could you also tell me how to find out if a trianhle is unique?) Tha

Flura [38]

Answer:

Hazal

Step-by-step explanation:

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3 years ago

Vivian is solving the equation 0=x2−5x−4 0 = x 2 − 5 x − 4 using the quadratic formula. Which value is the negative real number

Aleks [24]

<h3><u>answer</u><u>:</u></h3>

-0.7

<h3><em><u>steps</u></em><em><u>:</u></em></h3>

the quadratic formula is

$\frac{ - b + - \sqrt{ {b}^{2} - 4ac } }{2a}$

substitute the correct values in

$\frac{ - ( - 5) + - \sqrt{ {( - 5)}^{2} - 4(1)( - 4) } }{2(1)}$

where it says +- you would type this into your calculator with + AND THEN - to get two separate answers.

when you type + you get the answer of: 5.701562119...

when you type - you get the answer of:

-0.7015621187...

when you round to the nearest tenth you get -0.7

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>!</em><em> </em><em>:</em><em>)</em>

<em>have</em><em> </em><em>a</em><em> </em><em>great</em><em> </em><em>day</em><em> </em><em>~</em><em> </em><em>•</em><em>lipika</em><em>•</em>

3 0

3 years ago