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2 years ago

Use each of these prime numbers once. Write one of them in every empty square

Mathematics

1 answer:

Ivenika [448]2 years ago

3 0

Answer: hmm can you use negative 1 multiples i dont think its possible since if 23 is the target sum you bust with every possible addition to 17

Step-by-step explanation:

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There are 8 ducks swimming in a pond. If 6 have green wings and 2 have blue wings, what fraction of the ducks have blue wings?

harina [27]

Total ducks = 8

blue winged ducks =2

fraction of ducks having blue wings =2/8 =1/4

8 0

3 years ago

Which shapes could this hexagon be decomposed into to find its area? Choose all that apply (3 points).

Scilla [17]

You can do:

-two trapezoids
-six triangles
-two parallelograms

You can't put it into one rectangle, that will definitely not work.

As you can see from the attachment, triangles work, trapezoid as well, and two parallelograms. The one rectangle would not work.

I hope this helps!
~kaikers

3 0

3 years ago

I will mark brainlist if right!!!

Orlov [11]

Step-by-step explanation:

b2 =5

.....................

8 0

3 years ago

One of the factors of 6x3 − 864x is A. 4 B. X^2 C. X + 12 D. X - 8

erastova [34]

The answer is C. X+12

8 0

3 years ago

Read 2 more answers

The test statistic of zequals2.32 is obtained when testing the claim that pgreater than0.3. a. Identify the hypothesis test as b

Sonja [21]

Answer:

a) We need to conduct a hypothesis in order to test the claim that the true proportion p is greatr than 0.3, so then the system of hypothesis are.:

Null hypothesis: $p \leq 0.3$

Alternative hypothesis: $p > 0.3$

Right tailed test

b) $p_v =P(z>2.32)=0.0102$

c) So the p value obtained was a very low value and using the significance level given $\alpha=0.1$ we have $p_v$ so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 1% of significance the proportion of interest is higher than 0.3

Step-by-step explanation:

Part a: Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the true proportion p is greatr than 0.3, so then the system of hypothesis are.:

Null hypothesis: $p \leq 0.3$

Alternative hypothesis: $p > 0.3$

Right tailed test

When we conduct a proportion test we need to use the z statisitc, and the is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

Calculate the statistic

For this case the statistic is given by $z_{calc}= 2.32$

Part b: Statistical decision

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.

The next step would be calculate the p value for this test.

Since is a right tailed test the p value would be:

$p_v =P(z>2.32)=0.0102$

Part c

So the p value obtained was a very low value and using the significance level given $\alpha=0.1$ we have $p_v$ so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 1% of significance the proportion of interest is higher than 0.3

6 0

3 years ago