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3 years ago

3\sqrt{45}+2\sqrt{12}+5\sqrt{80}+3\sqrt{108}

1 answer:

8 0

Answer:2=2, 5=2+3, 6=2x3, 4=2² It goes about 300,000,000 meters (three hundred million meters) in 1 Second in vacuum, so the speed of light is about 300,000,000 meters per second.3²=3x3, c²=cxc, 30²=30x30E=20 x c² 20 x 300,000,000 x 300,000,000 = 1,800,000,000,000,000,000

Step-by-step explanation:

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HELP ASAP AND GETS SOME POINTS AND BRAINLEST!!!!

guajiro [1.7K]

Answer:

9x² + 28x - 32

Step-by-step explanation:

Given

(9x - 8)(x + 4)

Each term in the second factor is multiplied by each term in the first factor, that is

9x(x + 4) - 8(x + 4) ← distribute both parenthesis

= 9x² + 36x - 8x - 32 ← collect like terms

= 9x² + 28x - 32

4 0

4 years ago

Read 2 more answers

A certain recipe ask for 5/9 cup of granola. How much is needed to make 2/3 of a recipe

Masteriza [31]

I think you divide 5/9 divided by 2/3.
5/9 divided by 2/3=4/3 simplified=2/3.
Just know I'm terrible at math so this could be like totally off the hook crazy and wrong.

7 0

4 years ago

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Find the surface area of the cube shown. (_________) square centimeters

Step2247 [10]

Answer:

The answer is: 181.5 square centimeters.

Step-by-step explanation:

The cube has six faces, and each face is a square with sides of length 5.5, so the area of one of this faces is $5.5^2=30.25$ , adding the six faces, we get the answer: $A=6\times 30.25=181.5$

5 0

3 years ago

Read 2 more answers

PLEASE PLEASE HELP!! ITS JUST 2 QUESTIONS ! FOR 15 POINTS BE HONEST WITH YOUR ANSWER!!

GaryK [48]

1. Two angles are complementary. One angle measures 50°. What is the measure of the other angle?
complementary, sum of the angles = 90

so 90 - 50 = 40

answer is
C.40°

2.Two angles are supplementary. One angle measurement is 30° more than the other. What is the measure of the smaller angle?

supplementary, sum of the angles = 180

One angle measurement is 30° more than the other.
so both angles are 75 and 105

105 is 30 more than the other angel of 75

answer
measure of the smaller angle is 75

so it's D.75°

3 0

3 years ago

-2a3 - 3a2 + 4a + 6, 2a3 + 5a2 + 7 sum the expression

zavuch27 [327]

Answer:

2a2 + 4a + 7

Step-by-step explanation:

As, - (2a3 - 3a2 + 4a + 6) + (2a3 + 5a2 + 7)

= 2a2 + 4a + 13

5 0

3 years ago