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Tasya [4]
3 years ago
9

Which one of the following statements is true? *

Mathematics
2 answers:
Jobisdone [24]3 years ago
5 0
A is the answer I think
Orlov [11]3 years ago
4 0

Answer:

tan 45° = 1 = true

cos 30° = 1/2 = false

sin 45° = 1/3 = false

sin 90° = 0 = false

Step-by-step explanation:

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I NEED FAST HELP!!!!!!!!!!!!!!!!!!!
Sindrei [870]

Answer:

The student is expected to spend <em>15.4 hours </em>doing homework

Step-by-step explanation:

The scattered plot shows there is a close correlation between the variables. A line of best fit will go through the 'center' of the points. Since we are not required to find an exact line, we'll draw it in red color as shown below

To know the equation of that line, we must take two clear points of it from the graph. We'll pick (28,4) and (4,25)

The equation of a line, given two points (a,b) and (c,d) is

\displaystyle y-b=\frac{d-b}{c-a}(x-a)

Using the selected points

\displaystyle y-4=\frac{25-4}{4-28}(x-28)

Simplifying and computing results, the equation is

\displaystyle y=-\frac{7}{8}x+\frac{57}{2}

Using that equation, we can predict how many hours the students will spend doing homework if they spend 15 hours watching TV

\displaystyle y=-\frac{7}{8}(15)+\frac{57}{2}=15.4 hours

So the student is expected to spend 15.4 hours doing homework

7 0
3 years ago
Is 290 10 times as much as 2,900
ale4655 [162]
Yes if you were to so 290 times 10 on a calculator or 2,900 divided by 10
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A team won 1/4 of its games. If they played 20 games, how many did they win?
svetlana [45]

Answer:

5

Step-by-step explanation:

20 divided by 4 = 5

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The inequality would be 50w + 100 >_ 18,000 ( the _ goes under the > but I cannot do that on my phone )
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