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vredina [299]
2 years ago
12

Bob is saving $250 to buy a new pair of AirPods. He already has $50. Bob is going to save $20 each week until he has enough mone

y to purchase the AirPods.​
Mathematics
1 answer:
Burka [1]2 years ago
4 0
10 weeks is how long
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Connor is asked to find the probability of rolling a prime number on a die. He states that this is a simple event. True or false
Dafna1 [17]
The correct answer is true
5 0
3 years ago
How many people scored below 80?<br><br><br><br> 21<br> 18<br> 11<br> 12
Airida [17]
The answer would be 11
7 0
2 years ago
I just need an explanation on why I was wrong and why the correct answer is correct
Nookie1986 [14]

Answer:

9

Step-by-step explanation:

<u><em>Definition of: Coefficient</em></u>

A number used to multiply a variable.

<u><em>Example:</em></u> 6z means 6 times z, and "z" is a variable, so 6 is a coefficient.

Variables with no number have a coefficient of 1.

<u><em>Example</em></u>: x is really 1x.

<em><u>coefficients:</u></em>

3<em>x⁴</em>+ 5<em>x²</em> + 1<em>x</em>

<u><em>sum of the coefficients:</em></u>

3 + 5 + 1

8 + 1

 9

4 0
3 years ago
What is 8.2951 rounded to the nearest hundredth?
amid [387]

Answer: 8.29 still...

Step-by-step explanation:

When your doing the nearest hundreth, the thousandth has to be close to 10 to make it a diffrent number, if it WAS, then it would be 8.30

6 0
3 years ago
Read 2 more answers
An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such tha
IgorLugansk [536]

Answer:

Do no reject null hypothesis.  

Conclusion:

there is no sufficient statistical evidence at 0.025 level of significance to support the claim.

Step-by-step explanation:

Given that;

mean x" = 5.4

standard deviation σ = 0.7  

n = 6

Null hypothesis H₀ : μ = 5.0  

Alternative hypothesis H₁ : μ > 5.0    

∝ = 0.025    

now,

t = ( 5.4 - 5.0) / ( 0.7/√6) = 0.4 / 0.2857 = 1.4

degree of freedom df = n-1 = 6 - 1 = 5

T critical = 2.571

Therefore; t < T critical,

Do no reject null hypothesis.  

Conclusion:

there is no sufficient statistical evidence at 0.025 level of significance to support the claim.

3 0
3 years ago
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