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Ainat [17]
3 years ago
10

Use distribute property and simplify Help me please​

Mathematics
2 answers:
koban [17]3 years ago
6 0

Step-by-step explanation:

must calculate the number in ( ) first before calculate the number in [ ]

- - > +

+ + > +

+ - > -

- + > -

stellarik [79]3 years ago
5 0

Answer:

104

155

180

Step-by-step explanation:

an easy way is to solve what is in the parenthesis then multiply by the outside number

but if you need to use the distributive property:

1. 4 x (20 - -6)

(4 x 20) - (4 x -6) = 80 - -24 = 80 + 24 = 104

2. -5 x (24 - -7)

(-5 x 24) - (-5 x -7) = -120 - 35 = 155

3. 12 x (-30 + 45)

(12 x -30) + (12 x 45) = -360 + 540 = 180

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Find the length of side x in simplest radical form with a rational denominator.
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Answer:

2\sqrt{5}

Step-by-step explanation:

this is a 30-60-90 Δ and the ratio of the sides are 1 : \sqrt{3} : 2

1 / 2 = \sqrt{5} / x

cross-multiply: x = 2\sqrt{5}

3 0
2 years ago
Explain how you use a quick picture to find the quotient and remainder
Varvara68 [4.7K]
Example question: There are 38 students in a baseball club. The coach needs to split them up into equal groups of 4. How many groups can be made? How many kids are left over?
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3 years ago
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Another easy question pls answer​
timama [110]
Always true, 90+90=180
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2 years ago
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Enter the number 46.1979 rounded to the nearest hundredth (two decimal places)
muminat

Answer:

It should be 46.20

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6 0
1 year ago
An engineer created a scale drawing of a building using a scale in which 0.25 inch represents 2 feet. The length of the actual b
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The length of the building in the scale drawing is 31. 25 Inches

<h3>How to determine the value</h3>

From the information given, we have that;

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  • The length of the building is 250 feet

Then,

If 0. 25 inches = 2 feet

Then x inches = 250 feet

cross multiply
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Multiply through, we have;

2x = 62. 5

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x = 31. 25 Inches

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