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3 years ago

Help me do this Please please

Mathematics

2 answers:

saw5 [17]3 years ago

8 0

Answer:

x = 1/2

b = 12

Step-by-step explanation:

In order to solve for x you have to divide by x

2 = 4x divide by x

2/4 = x

simplify and you get 1/2

same thing goes for b. You need to leave b by itself. so subtract 24 from both sides and you get -12. divide both sides by -b and a negative divided by a negative turns into a positive b by it self holds a value of 1

crimeas [40]3 years ago

3 0

Answer:

the answer to question 5 is 0.5 and to question 6 it is 36

Step-by-step explanation:

becuase for number five u have to cancel out the 4 to have the variable by itself sonu divide it and u get 0.5 and for number 6 you do the same but add 24 to 24 ti cancel it out and then when you add 24 to 12 its 36 becuase what you do to one side u have to do to both . hope I helped :)

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Hello can someone help me please

Nadusha1986 [10]

Add the three different amounts she gets to find the total:

450 + 300 + 500 = 1250 mg total.

1250 is greater than 1200, so yes, she is getting enough.

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3 years ago

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Order the numbers below least to greatest Please help me

n200080 [17]

The given numbers ordered from least to greatest is:

{√7 , 2.8..., π, √17, 4.6}

<h3>How to order the numbers from least to greatest?</h3>

First, we need to write all the given numbers in decimal form so we can accurately compare them.

The numbers are:

{4.6, √7, π, 2.8..., √17}

Rewriting all of these in decimal form:

√7 = 2.64

π = 3.14159265....

√17 = 4.12

Then the numbers are:

{4.6, 2.64, 3.14159265...., 2.8..., 4.12}

Now is easier to order these numbers, ordering them from least to greatest we will get:

{2.64, 2.8..., 3.14159265...., 4.12, 4.6}

Now, using the original notation we get:

{√7 , 2.8..., π, √17, 4.6}

If you want to learn more about ordering numbers:

brainly.com/question/1094377

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3 0

1 year ago

Can u pleaseee answer this no links

Mnenie [13.5K]

Answer:

1) 7/5

2) 9/8

3) 1/9

4) 13/5 which becomes 5/13

5) 27/8 which becomes 8/27

Step-by-step explanation:

→ The reciprocal of a number is just the 'flipped version' of it, the numerator becomes the denominator and the denominator becomes the numerator

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2 years ago

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Suppose a consumer group suspects that the proportion of households that have three cell phones NOT known to be 30%. A cell phon

leva [86]

Answer:

We conclude that the actual percentage of households is equal to 30%.

Step-by-step explanation:

We are given that a consumer group suspects that the proportion of households that have three cell phones NOT known to be 30%.

Their marketing people survey 150 households with the result that 43 of the households have three cell phones.

Let p = proportion of households that have three cell phones NOT known.

So, Null Hypothesis, $H_0$ : p = 30% {means that the actual percentage of households is equal to 30%}

Alternate Hypothesis, $H_A$ : p $\neq$ 30% {means that the actual percentage of households different from 30%}

The test statistics that would be used here One-sample z-test for proportions;

T.S. = $\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of households having three cell phones = $\frac{43}{150}$ = 0.29

n = sample of households = 150

So, the test statistics = $\frac{0.29-0.30}{\sqrt{\frac{0.30(1-0.30)}{150} } }$

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The value of z test statistic is -0.27.

Also, P-value of the test statistics is given by;

P-value = P(Z < -0.27) = 1 - P(Z $\leq$ 0.27)

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Now, at 1% significance level the z table gives critical value of -2.58 and 2.58 for two-tailed test.

Since our test statistic lies within the range of critical values of z, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which we fail to reject our null hypothesis.

Therefore, we conclude that the actual percentage of households is equal to 30%.

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3 years ago

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igor_vitrenko [27]

Yes u can. It is very easy

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2 years ago

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