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3 years ago

1+4=5, 2+5=12, 3+6=21,8+11=

Mathematics

1 answer:

klemol [59]3 years ago

8 0

The answer is 40 because once you have 21 your just adding 19 and then that makes it 40.

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Write an equation in point-slope form given the two points (2,3) and (3,5)

Natalka [10]

Answer:

Step-by-step explanation:

First find slope using equation: y2-y1/x2-x1

Substitute: 5-3/3-2

Solve: 2/1 = 2 Slope is 2

Now use point-slope form: y-5 = 2(x-3)

You could also do: y-3 = 2(x-2)

Hope this helps

8 0

3 years ago

A survey of 400 non-fatal accidents revealed that 268 involved a distracted driver using some kind of electronic device. Constru

Misha Larkins [42]

A 95% confidence interval for the proportion of non-fatal accidents involving a distracted driver using some kind of electronic device is 62.5%<x<71.61%

The 95% confidence interval for the proportion is expressed according to the formula;

$CI=p\pm z\sqrt{\frac{p(1-p)}{n} }$

p is the proportion = 268/400 = 0.67

z is the 95% z-score = 1.96

n is the sample space = 400

Substitute the given parameters into the formula to have:

$CI=0.67\pm 1.96\sqrt{\frac{0.67(1-0.67)}{400} }\\CI=0.67\pm 1.96\sqrt{\frac{0.67(0.33)}{400} }\\CI=0.67\pm 1.96(0.0235)\\CI=0.67 \pm 0.0461\\CI=(0.67-0.0461, 0.67+0.0461)\\CI=(0.624, 0.7161)\\CI = (62.4 \%, 71.61 \%)$

Hence a 95% confidence interval for the proportion of non-fatal accidents involving a distracted driver using some kind of electronic device is 62.5%<x<71.61%

Learn more on confidence interval here: brainly.com/question/17212516

5 0

3 years ago

Which one of the following equations is equivalent to 3x-12 = -9?

MissTica

the answer choices don't make sense but I can help u with solving the equation it's x = 1

3x-12=-9 , minus 12 on both sides
3x = 3 , divide 3 on both sides
x = 1

now that u know this go through your answer choices and solve their equation and see which one produces x = 1 and that'll be the answer!!

3 0

3 years ago

Please it's for tomorrow!

horrorfan [7]

Answer

m = -8

(if it's 2 sub n-1; otherwise, likely -10?)

7 0

3 years ago

What is the equation of a line with the slope of -7 and a y-intercept of 6

zalisa [80]

The answer is d y=-7x+6

formula for the equation of a line is y= mx+b

m is the slope

b is the y- intercept

6 0

4 years ago