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3 years ago

Someone please help me I will be so thankful

Mathematics

1 answer:

Volgvan3 years ago

8 0

1/2 = 0.5 = 50% was found.

Looking at the scale, there are 5 dashes from 0 to 10,000. This means that each dash is worth $2,000. The thermometer is marked 2.5 dashes up; 2.5(2000) = 5000.

5000/1000 = 1/2; 1/2 = 0.5; 0.5 = 50%.

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Andrews [41]

Use PEMDAS:

[(30+6) -3^2] / 9* 2

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3 years ago

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FrozenT [24]

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spayn [35]

Answer:

There was 32.5mm of rainfall on the seventh day.

Step-by-step explanation:

Mean of a data-set:

The mean of a data-set is the sum of all values of a data-set divided by the number of values in the data-set.

The mean daily rainfall for a week was 5.5mm.for the first six days the mean rainfall was 1mm.

This means that during the week(7 days), the total amount of rain was of:

$6*1 + x = 6 + x$

How much rainfall on the seventh day ?

This is x. We have that:

$\frac{6 + x}{7} = 5.5$

$6 + x = 7*5.5$

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3 years ago

In triangle ABC, c = 8, b = 6, and ∠C = 60°. sin∠B = _____

guajiro [1.7K]

Answer:
sin B = 0.65

Explanation:
To solve this question, we will need to use the sine law that is shown in the attached image.

Here, we have:
c = 8
b = 6
angle C = 60°

Therefore:
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$\frac{6}{sin(B)}$ = $\frac{8}{sin(60)}$

sin B = 0.649 which is approximately 0.65

Hope this helps :)

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4 years ago

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