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mina [271]
2 years ago
8

Solve the equations using addition or subtraction. 5.5=-2+d

Mathematics
1 answer:
tia_tia [17]2 years ago
3 0

Answer: d=7.5

Step-by-step explanation: 5.5=−2+d                                                                     d−2+2=5.5+2                                                                                                             d=7.5                  

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Need help on this anything will help as this point tbh?!?!
Assoli18 [71]

Answer:

Radius = 1 in

then the volume of bubble = 4/3 π r^3

= (4/3 × 22/7 × 1) in^3 = 88/21 in^3

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5 0
2 years ago
A professor believes the students in a statistics class this term are more creative than most other students attending the unive
djverab [1.8K]

Answer:

Correct option: B

Step-by-step explanation:

The professor can perform a One-mean <em>t</em>-test to determine whether the average score of the students in his class is more than the average score of all the students attending university.

A <em>t</em>-test will be used instead of the <em>z</em>-test because the population standard deviation is not provided instead it is estimated by the sample standard deviation.

The hypothesis for this test can be defined as follows:

<em>H₀</em>: The average score of the students in his class is not more then the entire university, i.e. <em>μ ≤ 35</em>.

<em>Hₐ</em>: The average score of the students in his class is more then the entire university, i.e. <em>μ > 35</em>.

Given:

\bar x=40\\SE_{\bar x}=1.63

The test statistic is:

t=\frac{\bar x-\mu}{SE_{\bar x}}=\frac{40-35}{1.63}=3.0674\approx3.07

Thus, the correct option is (B).

4 0
3 years ago
PLZ HELP! THIS IS URGENT! TYSM, can anyone explain how to solve this question with and without using algebra? I need this real q
Serga [27]
The answer you're looking for is 2
8 0
3 years ago
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Jacob earns $7.25 an hour at his part-time job, and earns $9 each time he mows the lawn for his mother. He graphs the amount of
olchik [2.2K]

Answer: $7.25 at part-time job

$9.00 every time lawn mowed

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Step-by-step explanation:

7 0
3 years ago
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Anna35 [415]

Answer:

I think its 262156

Step-by-step explanation:

4 0
2 years ago
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