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2 years ago

What is 4 + 1 cause i'm stuck on this question hehe

Mathematics

2 answers:

s2008m [1.1K]2 years ago

6 0

Tis’ 5 mah lad

Explernation:

Yee Welcome.
Have a great day!

brilliants [131]2 years ago

5 0

Answer:

Step-by-step explanation:

4+1=5...if you add the number 4 and 1 it gives 5 lol

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A set of stacked plates for serving weighs 12kg . If each plate weighs 1/2 kg how many plates are in the stack?

Nutka1998 [239]

Answer:

Step-by-step explanation:

12 divided by 1/2 = 24

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1 year ago

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During summer, when the snow melts, the water level of the Yukon River increases. If the water level of the river increased by 9

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2 years ago

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In the 1980’s, a clinical trial was conducted to determine if taking an aspirin daily reduced the incidence of heart attacks. Of

zubka84 [21]

There is enough evidence to conclude that taking aspirin cannot reduces the chance of cancer.

Given sample size of patients take aspirin 11037, sample size of patients who have assigned placebo group be 11034. 104 doctors who take aspirin had a heart attack, 189 doctors had placebo had heart attacks.

First we have to form hypothesis.

$H_{0} :p{1} -p_{2} =0$

$H_{1}:p_{1} -p_{2} < 0$

We have to find the respective probabilities.

$p_{1}$ =104/11037

=0.0094

$p_{2}$ =189/11034

=0.0171

Now their respective margin of errors.

$s_{1}$ = $\sqrt{ {(0.0094*0.9906)/11037}$

=0.0009

$s_{2}$ = $\sqrt{0.0171*0.9829}$

=0.0011

Hence the distribution of the differences,they are given by:

p= $p_{1} -p_{2}$

=0.0094-0.0171

=-0.0077

S= $\sqrt{s_{1} ^{2}+s_{2} ^{2} }$

= $\sqrt{(0.0009)^{2} +(0.0011)^{2} }$

=0.00305

z=(p -f)/S (In which f=0 is the value tested at the null hypothesis)

=(-0.0077-0)/0.00305

=-2.52

p value will be 0.005.

p value of 0.05 significance level.

z=1.96.

1.96>0.005

So we will reject the null hypothesis which means it cannot reduce the whole chance of becomming a heart attack.

Hence there is enough evidence to conclude that taking aspirin cannot reduces the chance of cancer.

Learn more about t test at brainly.com/question/6589776

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1 year ago

Find the derivative of y with respect to the appropriate variable<br> y=cos^-1(x^2)

Ksju [112]

Answer:

a. Practically speaking, you compute the differential in much the same way you compute a derivative via implicit differentiation, but you omit the variable with respect to which you are differentiating.

Aside: Compare this to what happens when you differentiate both sides with respect to some other independent parameter, say :

b. This is just a matter of plugging

Step-by-step explanation:

like if this was helpful

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2 years ago