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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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-5 · 12 = -5 · 12 = -5 · 12 = -5 · 12 =

Inessa05 [86]

Answer:

-60 if you meant all of them its -180

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

How do you use the triangle sum theorem to find the measure of each angle in degrees ?!

TEA [102]

Answer:

The Triangle Sum Theorem is also called the Triangle Angle Sum Theorem or Angle Sum Theorem. It says that all the angles inside a triangle add up to 180°.

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Take a look at the picture attached. It has a "formula": ∠a+∠b+∠c=180°

Use this as it will help you a lot. You plug in the info you already know (it doesn't matter which angle is a,b,c) and solve for the missing one. :)

Ask in the comments below if you are not sure about something.

I hope that helps you! :D

6 0

3 years ago

Add. Express your answer in simplest terms. 1/5+2/3

DedPeter [7]

Y0ou find a common denominatior, in this case is 15.... then multiply whatever u had to get the denominator 15 times the top number, so 3/5 + 10/15 = 13/15

4 0

3 years ago

Read 2 more answers

Write the equation in the form Ax + By = C. Find an equation of a line passing through the pair of points (-7,3) and (-8,-9).

Illusion [34]

Answer:

12x -y = -87

Step-by-step explanation:

You can start with the 2-point form of the equation of a line and manipulate it to give you the standard form.

y = (y2 -y1)/(x2 -x1)(x -x1) +y1

y = (-9 -3)/(-8 -(-7))(x -(-7)) +3

y = (-12/-1)(x +7) +3

y = 12x +84 +3

-12x +y = 87 . . . . . subtract the x-term

12x -y = -87 . . . . . . make the leading coefficient positive (per standard form)

3 0

3 years ago

an elevator can carry 800 of weight. A football player weighting 280 pounds gets on the elevator with a student. Write and solve

Nesterboy [21]

Answer:

$425\geq x$

425 pounds or less can be added after the student and football player.

Step-by-step explanation:

let x = remaining weight

(note that >/= is greater than or equal to.)

800 - 280 - 95 >/= x

425 >/= x

8 0

3 years ago