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3 years ago

Someone pls help ): i will give brainlist !

Mathematics

2 answers:

german3 years ago

7 0

Lolololol to be honest I really don’t know

Nikolay [14]3 years ago

3 0

Answer:

x = 17.5

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 given angles and equate to 180, that is

5x - 4 + 4x + 44 - x = 180 , simplify

8x + 40 = 180 ( subtract 40 from both sides )

8x = 140 ( divide both sides by 8 )

x = 17.5

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Perform the indicated operation. 9z^3/16xy . 4x/27z^3

ziro4ka [17]

Answer:

$\frac{1}{12y}$

Step-by-step explanation:

This is a multiplication problem.

We want to multiply $\frac{9z^3}{16xy}\cdot \frac{4x}{27z^3}$

We factor to get:

$\frac{9z^3}{4\times 4xy}\cdot \frac{4x}{9\times 3z^3}$

We now cancel out the common factors to get:

$\frac{1}{4\times y}\cdot \frac{1}{1\times 3}$

We now multiply the numerators and the denominators separately to get.

This simplifies to $\frac{1}{12y}$

Therefore the simplified expression is $\frac{1}{12y}$

8 0

3 years ago

A student organization wondered how many hours per week college students study during a term. Each of the 10 students in the org

Inga [223]

Answer:

No, a convenience sample was taken.Therefore, the sample may not be representative of all college students in terms of number of hours studied per week.

Step-by-step explanation:

One of the important conditions required in other to estimate the mean of the population from the confidence interval. Requires that the data must be a random Sample. This is to ensure that sample values are not biased and as such are representative of the larger group of data.

However, in the scenario described above, the sample chose. Are friend's of the student, this makes the data lack randomness as those who aren't friends to the student do not stand a chance of being selected. The sampling procedure employed is called convenience sampling.

4 0

3 years ago

Lelu [443]

Answer:

13 and 7

Step-by-step explanation:

4 0

3 years ago

Marking the first 2 people brainliest if they answer

Vikki [24]

Answer:

the answer is the one you have selected

Step-by-step explanation:

3 0

3 years ago

One side of a triangle is two times the second side. The third side is 5 feet longer than the second side. The perimeter of a tr

Sphinxa [80]

Second side= x
First side = 2x
Third side = x+5
x+2x+x+5=49
4x=44
x=11

1st side= 22
2nd side = 11
3rd side = 16

3 0

3 years ago