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2 years ago

The base and height of a triangle is 36 and 12 respectively. It's area is ....... *

Mathematics

1 answer:

Leya [2.2K]2 years ago

3 0

Answer:

the answer is of the question is 216

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Function c(x) = 5x<br><br> If your input was 2, what is your output?

Sliva [168]

So in this problem you have to multiply the 2 to the 5 so it is going to be 5•2 that is going to equal 10

7 0

2 years ago

A survey company asks all respondents for demographic information. There are 8 age and 7 income groups, 5 gender choices, and 6

IgorC [24]

Answer:

3361 people should poll so it's inevitable that at least three people in the sample have identical demographic information.

Step-by-step explanation:

Consider the provided information.

There are 8 age and 7 income groups, 5 gender choices, and 6 choices for ethnicity.

For age we have 8 choices.

For Income groups we have 7 choices.

For gender groups we have 5 choices.

For ethnicity we have 5 choices.

Therefore, the total number of groups is: 8×7×5×6=1680

That means 1680 distinct group.

According to Pigeons holes principal: If m pigeons are in n holes and m > n, then at least 2 pigeons are in the same hole.

So to select at least 2 people in the sample have identical demographic information 1681 people needs to poll.

In order to at least 3 people (2 × 1680+1) people should need to poll.

2 × 1680 + 1 = 3361

Hence, 3361 people should poll so it's inevitable that at least three people in the sample have identical demographic information.

6 0

2 years ago

The perimeter of this triangle

Olegator [25]

Answer:

Perimeter = 3x+7

Step-by-step explanation:

x + x + (x+7) = (x+x+x) + 7

6 0

2 years ago

The number of square feet per house are normally distributed with a population standard deviation of 137 square feet and an unkn

pshichka [43]

Answer:

Step-by-step explanation:

Given that X, the number of square feet per house is N(mean, 137)

Sample size = 19

Sample mean x bar =1350 sq ft

Since population std dev is given,

std error of sample = $\frac{137}{\sqrt{19} } \\=31.43$

Since sample size is small, t critical value can be used

df = 18

t value for 80% two tailed = 1.333

Margin of error = ±1.333(std error) = ± $1.333*31.43\\=41.896$

Confidence interval = sample mean ±margin of error

= $1350-41.896,1350+41.896\\=(1308.104,1391.896)$

7 0

2 years ago

There are 16 fruits on the table. Maria has

anyanavicka [17]

Jack has 2, Maria has 9, Paul has 5.

6 0

2 years ago