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Nutka1998 [239]
3 years ago
6

What is the solution of StartRoot negative 4 x EndRoot = 100?

Mathematics
2 answers:
Brilliant_brown [7]3 years ago
6 0

Answer:

A

Step-by-step explanation:

slava [35]3 years ago
3 0

Answer:

x=-2500

Step-by-step explanation:

\sqrt{-4x} =100\\\\(\sqrt{-4x})^2=100^2\\\\-4x=10,000\\\\x=-\frac{10000}{4}\\\\x=-2500

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Find the least common denominator of these two fractions. LOTO and 1/ 5 The least common denominator is [?]​
Oksana_A [137]

Answer:

6yx

Step-by-step explanation:

This number will be your least common denominator (LCD). Divide the LCD by the original denominator. To determine the multiple needed to make the denominators equal, divide the LCD you determined by the original denominator. Multiply the numerator and the denominator of each fraction by this number.

3 0
2 years ago
n a survey of 331 customers, 66 say that service is poor. You select two customers without replacement to get more information o
yaroslaw [1]

Answer:

3.93% probability that both say service is poor

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The customers are chosen without replacement, and the order in which they are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

What is the probability that both say service is poor?

Desired outcomes:

Two saying it is poor, from a set of 66. So

D = C_{66,2} = \frac{66!}{2!(66-2)!} = 2145

Total outcomes:

Two customers from a set of 331. So

T = C_{331,2} = \frac{331!}{2!(331-2)!} = 54615

Probability:

p = \frac{D}{T} = \frac{2145}{54615} = 0.0393

3.93% probability that both say service is poor

4 0
3 years ago
Isabel ran for president of the chess club, and she received 12 votes. There were 15 members in the club. What percentage of the
hammer [34]

Answer:

80%

explanation:

just looked up "what percentage is 12 out of 15 and it gave me an answer"

just do this for all ur other questions like this

4 0
3 years ago
What is 12a equal to if 4a plus 6b = 10 and 2a-4b=12?
hram777 [196]
12a=x
4a+6b=10
2a+3b=5
2a-4b=12
a-2b=6
2a+3b+1=a-2b
a+5b+1=0
a=-1-5b

2(-1-5b)+3b=5
-2-10b+3b=5
-2-7b=5
-7b=7
7b=-7
b=-1

-1-5*-1=a
-1+5=a
4=a

4*12=48
12a=48

Hope this helps :)
3 0
3 years ago
Read 2 more answers
6 (x-3)=4 (x-4)+2 (x-1) how many solutions are possible for the equation
olga2289 [7]
Indefinitely many solutions is the answer to this problem. All real numbers are solutions. The answer was 0=0.
4 0
3 years ago
Read 2 more answers
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