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3 years ago

Please help !!! I’ll mark you as brainliest if correct!

Mathematics

2 answers:

zhenek [66]3 years ago

8 0

Answer:

The Mode is the most frequent number in a series. In this case, it is "The value that occurs most."

The Median is middlemost value in a series. In this case, it is "The middle of all values."

So The first option selected is correct and so is the second.

lisov135 [29]3 years ago

6 0

Answer:

You're correct!

Mean is the average of the numbers. THis is found by adding all of the numbers and dividing the sum by the amount of numbers you added.

Median is the number in the center.

The mode is the number that appears the most.

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Plz help I need to know how many cups or pancake mix is used for 1 cup of water

4vir4ik [10]

Answer:boot

Step-by-step explanation:

5 0

3 years ago

A chicken weighs t lbs. It needs to be cooked for 20 minutes per lb plus an extra 15 minutes. What is the total cooking time? Is

Nostrana [21]

Answer:

Total cooking time = 20t + 15

The expression 15t + 20 is wrong.

Step-by-step explanation:

weight of chicken = t lbs

cook time per lb = 20 minutes

This means that:

1 lb weight requires a cooking time of 20 minutes

1 lb = 20 minutes

∴ t lbs = 20 × t = 20t minutes.

We were also told that each chicken required an extra cooking time of 15 minutes, in addition to the total cooking time due to the weight. Therefore, the total cooking time is calculated thus:

Total cooking time = cooking time due to weight + 15 minutes

Total cooking time = 20t + 15

Hence the expression 15t + 20 is wrong, due to the explanation given above.

8 0

3 years ago

A coffee packaging plant claims that the mean weight of coffee in its containers is at least 32 ounces. A random sample of 15 co

Luda [366]

Answer:

We conclude that the mean weight of coffee in its containers is at least 32 ounces which means that the data support the claim.

Step-by-step explanation:

We are given that a coffee packaging plant claims that the mean weight of coffee in its containers is at least 32 ounces.

A random sample of 15 containers were weighed and the mean weight was 31.8 ounces with a sample standard deviation of 0.48 ounces.

Let $\mu$ = mean weight of coffee in its containers.

SO, Null Hypothesis, $H_0$ : $\mu \geq$ 32 ounces {means that the mean weight of coffee in its containers is at least 32 ounces}

Alternate Hypothesis, $H_A$ : $\mu$ < 32 ounces {means that the mean weight of coffee in its containers is less than 32 ounces}

The test statistics that would be used here One-sample t-test statistics as we don't know about population standard deviation;

T.S. = $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample mean weight = 31.8 ounces

s = sample standard deviation = 0.48 ounces

n = sample of containers = 15

So, the test statistics = $\frac{31.8 -32}{\frac{0.48}{\sqrt{15} } }$ ~ $t_1_4$

= -1.614

The value of t test statistics is -1.614.

Now, at 0.01 significance level the t table gives critical value of -2.624 at 14 degree of freedom for left-tailed test.

Since our test statistic is more than the critical value of t as -1.614 > -2.624, 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 mean weight of coffee in its containers is at least 32 ounces which means that the data support the claim.

8 0

4 years ago

Simplify to create an equivalent expression 19−6(−k−2)

Nikolay [14]

19 − 6( − k − 2)

Distribute -6:
= 19 + 6k + 12

Combine like terms:
= 6k + 31

Answer: 6k + 31

6 0

3 years ago

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Are all triangles similar

laila [671]

No. There are 3 types of triangles.

Scalene: Triangle which no sides are equal, so all angles aren't congruent

Isosceles: A triangle with 2 equals sides, but has 1 not equal sides.

Equilateral: A triangle which all sides are equal

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3 years ago

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