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Tpy6a [65]
3 years ago
5

What is 2x+3y+8x equal

Mathematics
2 answers:
Taya2010 [7]3 years ago
8 0

10x + 3y. add like terms

german3 years ago
3 0
10x + 3y is its simplest form. You cannot find a value from that equation, because we don't know what x or y equals.
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Suppose the mean GPA of all students graduating from a particular university in 1975 was 2.40. The registrar plans to look at re
ycow [4]

Answer:

Correct option:

(B) <em>H₀</em>: <em>μ</em> = 2.40 vs. <em>Hₐ</em>: <em>μ</em> ≠ 2.40.

Step-by-step explanation:

The registrar of particular university in 1975 plans to look at records of students graduating last year to see if the mean GPA has changed from 2.40.

The registrar can use a single mean test to determine whether the mean has changed or not.

The hypothesis can be described as:

<em>H₀</em>: The mean GPA is 2.40, i.e. <em>μ</em> = 2.40.

<em>Hₐ</em>: The mean GPA is different from 2.40, i.e. <em>μ</em> ≠ 2.40.

To perform the test the registrar can either use a <em>z</em>-distribution or a <em>t</em>-distribution.

If the data provided gives some insight about the population standard deviation and the sample selected is quite large then the <em>z</em>-distribution can be used.

Otherwise it is wiser to use a <em>t</em>-distribution.

The decision rule is:

If the <em>p</em>-value of the test is less than the significance level then the null hypothesis will be rejected and vice-versa.

Thus, the correct option is (B).

6 0
3 years ago
Which is the correct formula to find the area of triangle AED?
dmitriy555 [2]
Area of a triangle = 1/2(B*H)
B = Base
Height = H

So if the height was 5 and the base was 10, it would be half of 50 which is 25.
6 0
3 years ago
A skier skis along a circular ski trail that has a radius of 1.25 km. The skiier starts at the East side of the ski trail and tr
Simora [160]
You’re answer would be A love!
3 0
3 years ago
A customer at the produce section of a food store bought cucumbers and heads of lettuce . The quantity she purchased of the head
kkurt [141]
He bought 3 cucumbers because 3*5=15, 15-6=9, 9*.7=6.3, .3*3=.9, .9+6.3=7.2
4 0
2 years ago
A car's speed is 45 miles per hour. How far will it go in 4 hours and 20 mins?
PIT_PIT [208]

Hi Quanzia25,

Solution:

45mph

45mph x 4hrs. = 180 miles in 4 hours

45 / 3 = 15

180 + 15 = 195

Answer:

The car has traveled 195 miles.

7 0
3 years ago
Read 2 more answers
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