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3 years ago

Plz answer both for 10 points.!!! Thx for the help.

Mathematics

1 answer:

ratelena [41]3 years ago

4 0

Both questions make use of the formula for the area of a triangle:
.. A = (1/2)*b*h

23. A = (1/2)*b*h
.. A = (1/2)*x*7 . . . . substitute the given values
.. A = 3.5x . . . . . . . simplified

24. A = (1/2)*b*h
.. 84.5 = (1/2)*13*h . . . . . substitute the given values

.. 2*84.5/13 = h = 13 . . . .solve for h
The height of the triangle is 13 cm.

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Jason has one third of a gallon of milk.

bagirrra123 [75]

1/12
(1/3) divided by 4 is (1/3) x (1/4)
That would equal 1/12

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3 years ago

Read 2 more answers

A courier service company wishes to estimate the proportion of people in various states that will use its services. Suppose the

kolbaska11 [484]

The probability that the sample proportion will be less than 0.04 is 0.8995 or 89.95%.

The true proportion (p) is given to be 0.03.

Therefore, Mean (μ) = p = 0.03.

The standard error of sampling distribution can be calculated using the formula σ = √[{p(1 - p)}/n], where n, is the sample size, that is, n = 476.

Therefore, σ = √[{0.03(1 - 0. 03)}/476] = 0.00782.

Since, np = 14.28 and n(1 - p) = 461.72 are both greater than 5, we assume the sample is normally distributed.

Since, we are asked to find the probability that the sample proportion is less than 0.04, we using our calculator, enter as following:

Normalcdf(-100000000,0.04,0.03,0.00782), which gives us the value 0.8995 or 89.95%.

Thus, the probability that the sample proportion will be less than 0.04 is 0.8995 or 89.95%.

Learn more about probability of sampling distributions at

brainly.com/question/15520013

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2 years ago

Two times a number puls three equals one half of the number plus 30. What is the number

Masja [62]

Answer:18

Step-by-step explanation:2(18)+3=1/2(18)+30

36+3=9+30

39=39

7 0

3 years ago

Draw a number line to represent the inequality. y s 23

Mkey [24]

Answer:

The number lines are shown below.

Step-by-step explanation:

In the given problem the sign of inequality is missing.

We know, that there are 4 signs of inequality ">", "<", "≥" and "≤".

The possible inequalityes are

$y>23$

$y$

$y\geq 23$

$y\leq 23$

In $y>23$ , all points on the right side of 23 are included in the solution set.

In $y$ , all points on the left side of 23 are included in the solution set.

In $y\geq 23$ , 23 and all points on the right side of 23 are included in the solution set.

In $y\leq 23$ , 23 all points on the left side of 23 are included in the solution set.

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3 years ago

write the equation of the line that is parallel to y = 4x -7 and passes through the point (-2, -5). show your work.

natita [175]

Answer:

y = 4x + 3

Step-by-step explanation:

To do this, put the new line into the form y = mx + b where m is the slope and b is the y-intercept.

When two lines are parallel, they have the same slope. Since, the slope of the first line is 4, that means the slope of the second line is also 4.

So far, the equation is y = 4x + b.

Then, since you know (-2, -5) is a solution, x = -2, y = -5 is a solution so you can plug this into the equation.

This would be:

-5 = 4 * -2 + b

-5 = -8 + b

3 = b

This means the equation is y = 4x + 3.

7 0

3 years ago