2 years ago

Which property was used to simplify the expression?

Mathematics

1 answer:

Oliga [24]2 years ago

5 0

Answer:

distributive

Step-by-step explanation:

they took the number outside of the parentheses and multiplied by the inside

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11) A building casts a shadow of 100 feet. The angle of elevation from the end of the shadow to the top of the

svp [43]

Answer:

≈ 27 ft

Step-by-step explanation:

using the tangent ratio in the right triangle formed by the building and the ground.

tan15° = $\frac{opposite}{adjacent}$ = $\frac{?}{100}$ ( multiply both sides by 100 )

100 × tan15° = ? , then

? ≈ 27 ft ( to the nearest whole number )

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1 year ago

The product of a number and 3 increased by 9 is less than -42 TRANSLATE

nikitadnepr [17]

Answer:

3x+9 < - 42

Step-by-step explanation:

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3 years ago

Use the equation 135⋅42=5,670 and what you know about fractions, decimals, and place value to explain how to place the decimal p

Jobisdone [24]

7x + 4 = 9

7x + 4 = 19

2x = 19 - 4

7x = 15

x= 15 – 7

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3 years ago

Prove sin^2 theta-sin^2 theta is sin tetha sin 3 theta how to prove..pls help!! thanksss

Artemon [7]

Simply you can substitute theta=45 degrees (or any angle,not zero) in left hand side and right hand side.

or

using a^2 - b^2 =(a+b)(a-b)

= sin(2x+x)sin(2x-x)
= sin 3x sin x

3 0

3 years ago

What is the y-intercept of y=3-4xy=3−4xy, equals, 3, minus, 4, x?

balu736 [363]

Answer:

y = 3 - 4x

To find the y intercept let x = 0

y = 3 - 4(0)

y = 3 or ( 0 ,3)

Hope this helps.

8 0

3 years ago