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3 years ago

10

Use the square root property to solve the equation. 3x^2 + 24 = 0

1 answer:

posledela3 years ago

8 0

The answer to this question is x=2i√2,−2i√2

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A number, half of that number, and one fifth of that number are added. The result is 51. What is the original number?

Lera25 [3.4K]

Let the original number be ‘x’
Then half of that number= 1/2x or simply x/2
Similarly one fifth of that number = x/5
According to the question
x+x/2+x/5=51
Taking LCM
10x/10+2x/10+5x/10=51
Multiplying 10 throughout
10x+2x+5x=510
17x=510
x=510/17
Therefore x=30

7 0

3 years ago

A = L times W, Solve for W

Flura [38]

A = LW

Divide both sides by L (To isolate W)

W = $\frac{A}{L}$

8 0

3 years ago

Read 2 more answers

2^n/2=1024<br>maths <br>find n <br>class 8

IRISSAK [1]

the answer is above.

3 0

3 years ago

Read 2 more answers

The odds of winning a contest are 3:7. What is the probability winning the contest?

DiKsa [7]

Answer:

0.3

Step-by-step explanation:

Given: The odds of winning a contest are 3:7

To find: probability of winning the contest

Solution:

Probability refers to chances of occurrence of an event.

Odds are defined as (chances for success) : (chances against success)

Probability of winning = (chances for success) : (chances for success + chances against success)

As odds of winning a contest are 3:7,

(chances for success) : (chances against success) = 3:7

So,

Probability of winning the contest = $\frac{3}{3+7} =\frac{3}{10}=0.3$

5 0

3 years ago

5. Simplify:<br> 2x^2(-3x^2)^3

morpeh [17]

Answer:

$-54x^8$

Step-by-step explanation:

$2x^2(-27)x^6\\\\-54x^2x^6\\\\-54x^{2+6}\\\\-54x^8$

4 0

2 years ago