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3 years ago

Please help, this is all I need then I can watch tv!!!

Mathematics

1 answer:

elena55 [62]3 years ago

8 0

Answer:

2.5

Step-by-step explanation:

CD = [AC * CB]/AB = [3 *4]/5 = 12/5 = 2.4

(AB = sqrt(AC^2 +CB^2) )

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Calculate 6 P 6 note n p r equals n Over N - r

Murrr4er [49]

Answer:

Step-by-step explanation:

n! Might be 7, and n might be 6. r might also be 6. So 6 - 6= 0! = 1

So I think it might be 7 ÷ 1, which is 7.

7 0

3 years ago

Which of the following ratios is equivalent to the

VashaNatasha [74]

The answer to this should be B since 24/42 is 1/2

4 0

2 years ago

Please help. If you answer correctly and give an explanation I'll give you 5 stars, thanks, and brainliest.

timama [110]

The solution of the equation is $x=\frac{11}{7}$

Step-by-step explanation:

To simplify an equation of x

Simplify each side of the equation
Collect x in side and the numerical terms in the other side
Find the value of x

∵ The equation is $2x + \frac{1-x}{4}=3$

- Multiply all terms of the equation by 4 to cancel the denominator

of the 2nd term in the left hand side

∵ The equation is $4(2x) +4 (\frac{1-x}{4})=4(3)$

∴ 8x + (1 - x) = 12

∴ 8x + 1 - x = 12

- Add like terms

∴ (8x - x) + 1 = 12

∴ 7x + 1 = 12

- Subtract 1 from both sides

∴ 7x = 11

- Divide both sides by 7

∴ $x=\frac{11}{7}$

The solution of the equation is $x=\frac{11}{7}$

Learn more:

You can learn more about the solution of an equation in brainly.com/question/11306893

#LearnwithBrainly

3 0

3 years ago

The area of the surface of an office desk is 12 square feet. The desk is 2 feet wide. How long is it?

Over [174]

Answer:

Length is 6 feet

Step-by-step explanation:

l=A

w=12

2=6

hope you get it right

8 0

3 years ago

The radius of the aluminum (Al) atom is 143 pm. The radius of the aluminum ion (Al3+) is 54 pm. By what percentage did the radiu

Romashka [77]

Answer:

There was 62.23% change in radius as the ion formed.

Step-by-step explanation:

6 0

3 years ago