Answer:
0,-14
Step-by-step explanation:
5(x+7)²=245
divide both sides by 5
(x+7)²=49
Taking the square root of both sides
x+7=±7
Either x+7=7
subtract 7 from both sides
x+7-7=7-7
x=0
or
x+7=-7
subtract 7 from both sides
x+7-7=-7-7
x=-14
Hello there.
<span>
A ball has a radius of 18 cm.
What is the approximate volume of the ball?
Use 3.14 to approximate pi. Round to the nearest hundredth if necessary.
</span>
Answer: <span>24416.64</span>
9+B=-8 first start by moving the nine
B = -17 there is your answer .
hope this helps and give brainliest . thanks !
Answer:
The confidence interval is 6.6<μ<6.8.
Step-by-step explanation:
We have:
Number of observations = 601
Mean = 6.7
Standard deviation σ = 1.5
The z-score for a 95% confidence interval is 1.96.
The limits of the confidence interval can be calculated as
The confidence interval is 6.6<μ<6.8.
