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4 years ago

What is 4/8 times 1/2

Mathematics

2 answers:

BigorU [14]4 years ago

8 0

Answer:

1/4 or 0.25

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, 4/8=1/2

1/2*1/2=1/4

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

ki77a [65]4 years ago

6 0

To multiply a fraction just multiply the numerators and the denominators.

$\frac{4}{8} * \frac{1}{2}$ → $\frac{4 * 1}{8 * 2}$ → $\frac{4}{16}$

Finally, simplify.

$\frac{4}{16}$ → $\frac{1}{4}$

Best of Luck!

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Ind the value of cosX in the triangle given.

Anna11 [10]

Answer:

$\huge\boxed{D)\ 0.7241}$

Step-by-step explanation:

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3 years ago

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What is a multiplication problem using two decimals that has a product greater than 0.1 but less than 0.2

Sindrei [870]

0.05x4.1 would be a correct answer I think

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3 years ago

The USDA conducted tests for salmonella in produce grown in California. In an independent sample of 252 cultures obtained from w

Marat540 [252]

Answer:

The decision rule is

Fail to reject the null hypothesis

The conclusion is

There no sufficient evidence to show that the proportion of salmonella in the region’s water differs from the proportion of salmonella in the region’s wildlife

Step-by-step explanation:

From the question we are told that

The first sample size is $n_1 = 252$

The number that tested positive is $k_1 = 18$

The second sample size is $n_2 = 476$

The number that tested positive is $k_2 = 20$

The level of significance is $\alpha = 0.01$

Generally the first sample proportion is mathematically represented as

$\^ p _1 = \frac{k_1 }{ n_1 }$

=> $\^ p _1 = \frac{18 }{ 252 }$

=> $\^ p _1 = 0.071$

Generally the second sample proportion is mathematically represented as

$\^ p _2 = \frac{k_2 }{ n_2 }$

=> $\^ p _2 = \frac{20 }{ 476}$

=> $\^ p _2 = 0.042$

The null hypothesis is $H_o : p_1 - p_2 = 0$

The alternative hypothesis is $H_a : p_1 - p_2 \ne 0$

Generally the test statistics is mathematically represented

$z = \frac{ \^ p_1 - \^ p_2 - ( p_ 1 - p_2 )}{ \sqrt{\frac{\^ p_1 (1-\^ p_1)}{ n_1 } + \frac{\^ p_2 (1-\^ p_2)}{ n_2 } } }$

=> $z = \frac{ 0.071 - 0.042 - 0 }{ \sqrt{\frac{0.071 (1-0.071)}{ 252 } + \frac{0.042 (1-\^ 0.042)}{ 476 } } }$

=> $z = 1.56$

From the z table the area under the normal curve to the right corresponding to 1.56 is

$P(Z > 1.56 ) =0.05938$

Generally the p-value is mathematically represented as

$p-value = 2 * P(Z > 1.56 )$

=> $p-value = 2 * 0.05938$

=> $p-value = 0.1188$

From the value obtained we see that $p-value > \alpha$ hence

The decision rule is

Fail to reject the null hypothesis

The conclusion is

There no sufficient evidence to show that the proportion of salmonella in the region’s water differs from the proportion of salmonella in the region’s wildlife

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3 years ago

Four students were discussing how to find the unit rate for a proportional relationship. Which method is valid?

Marina CMI [18]

Answer:

Look at the graph of the relationship. Find the y-value of the point that corresponds to x = 1. That value is the unit rate.

Step-by-step explanation:

The unit rate is the change in y for a 1-unit change in x. Since the graph of a proportion will go through the origin, it is appropriate to look at the y-value for x = 1 (one unit from the origin).

___

The ratio of units up to units to the right is also the unit rate when the fraction is reduced to lowest terms. It is a "unit" rate when the denominator of the fraction is 1 unit.

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4 years ago

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leva [86]

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3 years ago

What is 4/8 times 1/2​

What is 4/8 times 1/2