I WILL MARK YOU BRAINLYEST if you answer all of my problems !!!!!!!!!!! please need help ASAP

Mathematics

2 answers:

MakcuM [25]3 years ago

8 0

19.- 20dollars/year
20.-the date is a linear function because it has a constant rate of change
21.-2x+4y=48
22.-x=24
23.-y=12
25.- the x intercept indicates the amount of hotdogs that you can buy when you do not buy any hamburgers
26.- the y intercept indicates the amount of burgers you can buy when x=0

horrorfan [7]3 years ago

5 0

19- The rate of change is $20 dollars per year
20- It DOES represent a linear equation because the rate of change is constant

All now pertains to hamburgers and hotdogs:
21- 2x + 4y = 48
22- x-intercept is 24
23- y-intercept is 12
24- Grqph is either below or above in ,y’a answer
25- the x-intercept is how many hotdogs you could get without buying any hamburgers. 24 hotdogs only
26- the y-intercept is how many hamburgers you could buy without getting any hotdogs. Just 12 hamburgers

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Simplify the expression \[\frac{6}{\sqrt{36} + \sqrt{27}} + \frac{6}{\sqrt{27} + \sqrt{18}} + \frac{6}{\sqrt{18} + \sqrt{9}}.\]

Viktor [21]

Answer:

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Step-by-step explanation:

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7 0

3 years ago

Solve: 7+42*3^(2-3a)=14*3^-2a+7<br> A=-3<br> a=0<br> a=3<br> a=no solution

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Step-by-step explanation:

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4 years ago

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A recent survey showed that in a sample of 100 elementary school teachers, 15 were single. In a sample of 180 high school teache

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Answer:

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Step-by-step explanation:

let p1 be the proportion of elementary teachers who were single

let p2 be the proportion of high school teachers who were single

Then, the null and alternative hypotheses are:

$H_{0}$ : p2=p1

$H_{a}$ : p2>p1

We need to calculate the test statistic of the sample proportion for elementary teachers who were single.

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$\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } }$ where

p(s) is the sample proportion of high school teachers who were single ( $\frac{36}{180} =0.2$ )
p is the proportion of elementary teachers who were single ( $\frac{15}{100} =0.15$ )