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2 years ago

A small grocery store offers two different brands of milk.

Mathematics

1 answer:

MariettaO [177]2 years ago

5 0

Step-by-step explanation:

So your question I confusing so i'm gonna put what i think this means $3 +$1.5=$4.5 if you take it back to store it will not have to be paid because it already is paid how much the price will be.

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What is the expression in radical form?

garri49 [273]

Answer:

$\sqrt[5]{25x^{2}y^{4}z^{6} }$

Step-by-step explanation:

going to the 2/5 power is the the fifth root of a square. For fraction exponents going into radical form use the denominator as you root of and use the numerator as the exponent of the rest making sure to multiply any other exponents by that number and when there is no exponent treat it as having an exponent of one for the multiplying.

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2 years ago

Roulette is a casino game that involves players betting on where a ball will land on a spinning wheel. An American roulette whee

nikitadnepr [17]

Answer: -0.053

Step-by-step explanation:

1•(18/38) + -1 •(20/18) = -0.053

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2 years ago

Read 2 more answers

*WILL MARK BRAINLIEST*

nikdorinn [45]

Answer:

3 $\sqrt{5}$ which is approx 6.71

Step-by-step explanation:

$\sqrt{45}$ = $\sqrt{9}$ · $\sqrt{5}$ = 3 $\sqrt{5}$

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2 years ago

What is a matrix for a system of equations that does not have a unique solution?

vlada-n [284]

A system of linear equations can have no solution, a unique solution or infinitely many solutions. A system has no solution if the equations are inconsistent, they are contradictory. for example 2x+3y=10, 2x+3y=12 has no solution. is the rref form of the matrix for this system.

This is in my opinion. Im not sure if it is correct or not but Good luck!

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2 years ago

In a national survey of 1987 adults, 1570 responded that lack of respect and courtesy in American society is a serious problem,

Alik [6]

<h2>Answer with explanation:</h2>

As per given , we have

$H_0: p\leq\dfrac{3}{4}\\\\H_a: p>\dfrac{3}{4}$

Since , alternative hypothesis is right tailed, so the test is a right tailed test.

n= 1987

Proportion of adults believe that rudeness is a worsening problem : $p=\dfrac{1257}{1987}\approx 0.6326$

Test statistic : $z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

$z=\dfrac{ 0.6326-0.75}{\sqrt{\dfrac{0.75(1-0.75)}{1987}}}=-12.09$

(since , the normal curve takes values of z from -7 to 7, so we use critical value to draw conclusion.)

The critical value for a significance level of 0.005= 1.645

Since , absolute test statistic value (12.09) is greater than the critical value (1.645), it means there is statistical significance and so we reject the null hypothesis.

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3 years ago