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4 years ago

I don’t know how to answer this

Mathematics

1 answer:

masya89 [10]4 years ago

4 0

Answer:

20 ≥ 9 + (8 -7)·6
20 ≥ 1 + (2 -3)·4
20 ≥ 8 +(3 -5)·4

Step-by-step explanation:

You mainly need to make sure that the product has a value less than 20. That's not hard to do, since the difference can't be more than 9, and can be negative.

Pick some digits to put into the expression and see what the value is. Then make any adjustments you might need to make to reduce the sum. If you put 0 in the rightmost box, the other digits can be anything. (They just have to be different.)

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There is the picture of the problem i’m really having trouble with it could someone help me plz :)

blondinia [14]

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3 years ago

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3 years ago

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A class is made up of 10 boys and 5 girls. Half of the boys wear glasses. A student is selected at random from this class. What

saveliy_v [14]

Answer:

1/3

Step-by-step explanation:

Of the 15 students in the class, 5 are boys with glasses. The probability of selecting one at random is 5/15 = 1/3.

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3 years ago

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The point-slope form of the equation of the line that passes through (–4, –3) and (12, 1) is y – 1 = (x – 12). What is the stand

yanalaym [24]

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4 years ago

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Find tan(30) (its a right triangle)

Travka [436]

Use the 30-60-90 triangle.

Tan is opposite over adjacent.

$\frac{1}{ \sqrt{3} }$
Square roots cannot be on the bottom.

$\frac{1}{ \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} }$
The bottom cancel out the square root bar.

Your answer is:

$\frac{ \sqrt{3} }{3}$
(It's best to memorize the 30-60-90 and the 45-45-90 triangles during trigonometry. It helps a lot.)

Hope this helps!

:)

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3 years ago