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3 years ago

Ify -36. What is the square root for -36 ?

Mathematics

1 answer:

AysviL [449]3 years ago

7 0

Answer:
6 i
Explanation:

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Damon has 5 dimes and some nickles in his pocket what is the error 5n+50=1.20

Oxana [17]

The 50 is the error because cents are represented with decimals so it has to be .50

3 0

3 years ago

Evaluate 6|8−y|−15 when y = 10

geniusboy [140]

Step-by-step explanation:

6|8-y|-15

6|8-10|-15

6|-2|-15

6(2)-15

12-15

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7 0

3 years ago

Please help 49÷k –3=46

Andreas93 [3]

$\frac{49}{k} -3 = 46$
$\frac{49}{k} = 49$ . . . . add 3
$\frac{49}{49} = k$ . . . . multiply by $\frac{k}{49}$

k = 1

4 0

2 years ago

Ryan estimates the measurements of the volume of a container to be 36 cubic inches. the actual volume of the popcorn container i

vlada-n [284]

The absolute error is 4 cubic inches. To find the absolute error, you simply subtract the two values.

The percent error is 10%. To find the percent error, we create a fraction out of the error and the actual value.
4 / 40 x 100 = 10%

6 0

2 years ago

To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine foun

QveST [7]

Answer:

We conclude that the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 31.7 milligrams

Sample mean, $\bar{x}$ = 28.5 milligrams

Sample size, n = 9

Alpha, α = 0.05

Sample standard deviation, s = 2.8 milligrams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 31.7\text{ milligrams}\\H_A: \mu < 31.7\text{ milligrams}$

We use One-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{28.5 - 31.7}{\frac{2.8}{\sqrt{9}} } = -3.429$

Now, $t_{critical} \text{ at 0.05 level of significance, 8 degree of freedom } = -1.860$

Since,

$t_{stat} < t_{critical}$

We fail to accept the null hypothesis and accept the alternate hypothesis. We conclude that the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

3 0

3 years ago