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ozzi
3 years ago
9

Estimate 2.21x5.1 i guess need help please I don’t want to fell this class

Mathematics
2 answers:
sergiy2304 [10]3 years ago
8 0
Answer: 11.271 or 11.28

explanation:
Natasha2012 [34]3 years ago
7 0

Answer:

10

Step-by-step explanation:

Im guessing since you have to estimate it then u have to round them up. So if you move both of their points by 2 spaces (divide both by 100) They will be 221x510.

Round them up to 200x500.

That woule be 100 000. Then at the end just dont forget to divide by 10000.

Hope this was helpful

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What is a other name for the set of all x-values
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Calculate the first difference between 7, and where 7,-688. 2​
Nataly_w [17]

The difference between the numbers given is 6.882.

<h3>How to illustrate the information?</h3>

Based on the information given, it should be noted that difference means subtraction.

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2 years ago
mariela is standing in a building and looking out a window at a tree. The tree is 20 feet away from Mariela, Mariela's line of s
PtichkaEL [24]

Answer: 30.01 feet.

Step-by-step explanation:

You need to remember this identity:

tan\alpha=\frac{opposite}{adjacent}

Observe the figure attached, where h_t is the height in feet of the tree.

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\alpha= \alpha_1=42\°\\opposite=h_1\\adjacent=20

Substitute values into tan\alpha=\frac{opposite}{adjacent} and solve for h_1:

tan(42\°)=\frac{h_1}{20}\\\\h_1=20*tan(42\°)\\h_1=18

Now you need to calculate h_2 of the Triangle 2, where:

\alpha= \alpha_2=31\°\\opposite=h_2\\adjacent=20

Substitute values into tan\alpha=\frac{opposite}{adjacent} and solve for h_2:

tan(31\°)=\frac{h_2}{20}\\\\h_2=20*tan(31\°)\\h_2=12.01

Then the height in feet of the tree is:

h_t=h_1+h_2\\h_t=(18+12.01)ft\\h_t=30.01ft

5 0
3 years ago
Using two normal dice, what is the probability of rolling numbers that add up to 3?
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That would be rolling a 1 and a 2 .

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Both of these have a probability of 1/6 * 1/6 = 1/36

so required probability = 1/36 + 1/36 = 2/36 = 1/18


4 0
4 years ago
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