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3 years ago

What is sqrt23 approximated to the nearest tenth 3.6 4.6 4.8 11.5

2 answers:

8 0

When you calculate $\sqrt{23}$ to its approximate value,, you get about 4.79583. Now in order to round this number out to the nearest tenth,, we must look at the first number behind the decimal. If this number is smaller than 5 then we round down,, but if it is 5 or larger then we must round up. If you look at the first number behind the decimal for this number you can see that it is larger than 5,, so we must round up. This makes the correct answer to your question 4.8,, which can also be referred to as option C.
Let me know if you have any further questions
:)

Dmitrij [34]3 years ago

3 0

5^2 = 25 so i would say its 4.8 Answer

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Meteorologists in Texas want to increase the amount of rain delivered by thunderheads by seeding the clouds. Without seeding, th

Dafna11 [192]

Answer:

There is no significant difference in the amount of rain produced when seeding the clouds.

Step-by-step explanation:

Assuming that the amount of rain delivered by thunderheads follows a distribution close to a normal one, we can formulate a hypothesis z-test:

Null Hypothesis

$\bf H_0$ : Average of the amount of rain delivered by thunderheads without seeding the clouds = 300 acrefeet.

Alternative Hypothesis

$\bf H_a$ : Average of the amount of rain delivered by thunderheads by seeding the clouds > 300 acrefeet.

This is a right-tailed test.

Our z-statistic is

$\bf z=\frac{370.4-300}{300.1/\sqrt{30}}=1.2845$

We now compare this value with the z-critical for a 0.05 significance level. This is a value $\bf z^*$ such that the area under the Normal curve to the left of $\bf z^*$ is less than or equal to 0.05

We can find this value with tables, calculators or spreadsheets.

In Excel or OpenOffice Calc use the function

NORMSINV(0.95)

an we obtain a value of

$\bf z^*$ = 1.645

Since 1.2845 is not greater than 1.645 we cannot reject the null, so the conclusion that can be drawn when the significance level is 0.05 is that there is no significant difference in the amount of rain produced when seeding the clouds.

8 0

3 years ago

5/8 write a fraction or mixed number as a decimal

Citrus2011 [14]

.125 Iknow this as a fact ._.

4 0

3 years ago

Read 2 more answers

Find the critical point for f and then use the second derivative test to decide whether the critical point is a relative maximum

anygoal [31]

Answer:the answer is 9

Step-by-step explanation:

7 0

3 years ago

4/9+(x-1)=28/9-(x-7x)+1

k0ka [10]

4/9 + (x-1) = 28/9 - (x-7x) + 1

4/9 + x - 1 = 28/9 - x + 7x + 1

-5/9 + x = 37/9 + 6x

-5x = 42/9

-5x = 4.6 (repeating 6)

x = -0.93 (repeating 3)

Hope this helps! ;)

5 0

3 years ago

I need help with the problem

maxonik [38]

Answer:

Negative line

Step-by-step explanation:

Going up is positive (think in going uphill)

Going down is negative

6 0

2 years ago