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4 years ago

I need help with this question

Mathematics

1 answer:

Andreyy894 years ago

5 0

I believe the answer is C
Hope i helped
Let me know if i was right
:)

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Maggie leaves her home and travels 4 miles

DiKsa [7]

Answer:11 miles

Step-by-step explanation:

4 0

4 years ago

Hector made a batch of pancakes for his guests. He used 6 cups of milk, 3 eggs, and 9 cups of pancake mix. What is the constant

Juliette [100K]

9 cups pancake mix
6 cups milk

9/6 is your ratio

6 0

3 years ago

PLZ HELY ILL MARK BRANILEST

laila [671]

Answer:

518

Step-by-step explanation:

14 x 74 = 1036 1036 / 2 = 518

( really need brainliest , hope it helps )

( first )

6 0

3 years ago

In an article appearing in Today’s Health a writer states that the average number of calories in a serving of popcorn is 75. To

statuscvo [17]

Answer:

$t = 1.9166$

The nutritionist does not have sufficient evidence to reject the writers claim

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 75$

The sample size is $n = 20$

The sample mean is $\= x = 78$

The standard deviation $\sigma = 7$

The level of significance is $\alpha = 0.05$

Now the

Null Hypothesis is $H_o : \mu = 75$

Alternative Hypothesis is $\mu \ne 75$

generally the degree of freedom is mathematically represented as

$df = n-1$

$df = 20 -1$

$df = 19$

For a significance level of 0.05 and 19 degrees of freedom, the critical value for the t-test is 2.093. This is obtain from the t-distribution table

The test statistic is mathematically evaluated as

$t = \frac{ \= x - \mu }{\frac{\sigma }{\sqrt{n} } }$

substituting values

$t = \frac{78 - 75 }{\frac{7 }{\sqrt{20} } }$

$t = 1.9166$

Since the test statistic is below the critical value then the Null hypothesis can not be rejected

So we can conclude that the nutritionist does not have sufficient evidence to reject the writers claim

7 0

3 years ago

six ants simultaneously stand on the six vertices of a regular octahedron, with each ant at a different vertex. simultaneously a

Thepotemich [5.8K]

The probability that no two ants will reach the same vertex is 5/256.

Plane, point B and attention. Ants that move to D can come from either E or C. Ants moving to E can come from either B or D of points A and F of the octahedron. Therefore, there are 2 degrees of freedom to decide which ants move to D, 2 degrees of freedom to decide which ants move to E, and 2 degrees of freedom to decide which ants move to A.

So there are 2× 2× 2=8 ways an ant can move to different points.

There are 8 ways for ants to move to different points.

Points B, there are a total of 8 + 4 + 8 = 16 ways Ant can move to her different points. Aligned the square so that point B is defined as point where the ant moved from point A.

An ant can actually move from point A to 4 different points, so there are a total of 4×20=80 ways an ant can move to different points.

Each ant acts independently and has 4 different points to choose from.

So each ant has a 1/4 chance of moving to the desired location. Since he has 6 ants, the probability of appearance is

= 1/4096

So, the desired answer is 80/4096

= 5/256

To learn more about probability, visit:

brainly.com/question/13024117

#SPJ4

3 0

2 years ago