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3 years ago

Explain how you would round the numbers 33 and 89 to estmate their sum

2 answers:

8 0

Well 33 is rounded down to 30

And 89 is rounded up to 90

So it would be 120

Anything from 1-4 is rounded down and anything 5-9 is rounded up

solong [7]3 years ago

5 0

33 to 30 and 89 to 90. If the last number to the right is 5 or higher you round up if it's 4 or lower you round down.

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You record the number of sunny days out of a sample of 90 randomly selected days in city a and city b. in city a's sample there

Sergio039 [100]

The significance level shows that z approximately equals 1.41 for a p-value of 0.078642.

<h3>How to calculate the p-value?</h3>

Based on the complete question, the sample proportion for city A will be:

= 54/90 = 0.60

The sample proportion for city B will be:

= 63/90 = 0.70

Using the table given, it can be deduced that the test statistic value will be 1.41. Therefore, the p-value will be 0.078652 in the Excel function.

Since the p-value is greater than 0.05, then we fail to reject the null hypothesis that there is no difference in the commute time.

Learn more about significance level on:

brainly.com/question/4599596

6 0

3 years ago

What percent of 93 is 22?

tekilochka [14]

Answer:

23.66

Step-by-step explanation:

is/of = %/100 is the equation we use

so 22/93=x/100

then cross butterfly to get

2200=93x

then divide by 93 on both side to get what x equals

it is 23.655914 but rounded its 23.66

7 0

3 years ago

there are 11 students in summer school. The teacher took a survey of how many pets the students had in their homes. The students

masya89 [10]

Answer:

the median number for this problem is 4

6 0

3 years ago

When adding or subtracting with scientific notation,why is it important to have the same power of 10?

sladkih [1.3K]

<h2>Explanation:</h2><h2></h2>

Because we perform something like common factor, so this guarantee that corresponding digits have regarding coefficients have the same place value. Remember that a number written in scientific notation is given by the product of a number between 1 and 10 and another number that is power of 10. For example, let's write two examples about this:

Addition:

$a=2\times 10^3 \\ \\ b=4\times 10^3 \\ \\ \\ Then: \\ \\ a+b=2\times 10^3+4\times 10^3 \\ \\ =(2+4)\times 10^3 \\ \\ =5\times 10^3$

Addition:

$a=2\times 10^3 \\ \\ b=4\times 10^3 \\ \\ \\ Then: \\ \\ a+b=2\times 10^3+4\times 10^3 \\ \\ =(2+4)\times 10^3 \\ \\ =6\times 10^3$

Subtraction:

$a=7\times 10^5 \\ \\ b=2\times 10^5 \\ \\ \\ Then: \\ \\ a-b=7\times 10^5-2\times 10^5 \\ \\ =(7-2)\times 10^5 \\ \\ =5\times 10^5$

4 0

4 years ago

72 inches equals how much yards

Scorpion4ik [409]

Answer: 2 yards

Step-by-step explanation: there are 36 inches in a yard so divide 72 by 36 to get 2 which is the answer to the question

hope this helps mark me brainliest if you can

7 0

3 years ago

Read 2 more answers