Answer:
The value of x = -1
Step-by-step explanation:
=> 3x-5=2(-x-5)
=> 3x - 5 = -2x - 10
=> 3x + 2x = -10 +5
=> 5x = -5
=> x = -5/5
=> x = -1
Answer:
The number is -2
Step-by-step explanation:
Let the number = x
Given that:
Five times the result of adding one to a certain number, is equal to four times the number, plus three.
The equation will be:
5(x+1) = 4x +3
Simplifying
5x + 5 = 4x +3
Taking terms with x on left side and others on right side
5x - 4x = 3 - 5 (sign of transferred terms will be changed)
x = -2
Proof :
Condition 1:
- Add one = -2 +1 = -1
- Multiply 5 = -5
Condition 2:
- 4 times of number = 4 (-2) = -8
- Add 3 = -8 +3 = -5
Hence both conditions have same answer.
I hope it will help you!
Answer:
The total surface area is 782 inches
Step-by-step explanation:
I do not know the lateral answer sorry
Answer: No
Step-by-step explanation:
Let 
be the population mean .
As per given , we have to test the hypothesis.
∵ Alternative hypothesis (
) is right-tailed , so our test is a right-tailed test.
Also, the population standard deviation is unknown to be 0.8 , so we use t-test.
Test statistic:
, where 
= Sample mean
= population mean
= sample standard deviation.
n= Sample size
Substitute 
n= 100 , we get
By t-distribution, the critical t-value for degree of freedom 99 ( df =n-1) and significance level 0.10 :
Decision : ∵ Calculated -value (-1.71) < Critical value (1.29).
It means we do not reject the null hypothesis.
Conclusion : We do not have sufficient evidence at α = 0.10 significance level to reject the claim that the mean consumption of bottled water by a person in the United States is 28.5 gallons per year
Answer:
550pages and 10 hours
Step-by-step explanation:
