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algol [13]
3 years ago
5

How do i find the absolute value for l6ml=42

Mathematics
2 answers:
DIA [1.3K]3 years ago
7 0

Answer:

m = 7

m = -7

Step-by-step explanation:

olga55 [171]3 years ago
5 0

Answer:

m = ± 7

Step-by-step explanation:

The absolute value function always gives a positive result.

However the expression inside can be positive or negative, thus

6m = 42 ⇒ m = 7

- 6m = 42 ⇒ m = - 7

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Which of the following terms do not represent like terms 9x^2 and 5x 2x and 7y 8 and 107 a^2 and 2a
ASHA 777 [7]

Answer:

2x and 7y, because they have different variables.

Step-by-step explanation:


3 0
4 years ago
In the school library, there are 110 fiction books, 250 nonfiction
mariarad [96]

Answer:

110/125 = 22/25

0.88

%88

Step-by-step explanation:

It's basic math.

3 0
3 years ago
A local board of education conducted a survey of residents in the community concerning a property tax levy on the coming local b
IrinaK [193]

Answer:

a. [ 0.454,0.51]

b. 599.472 ~ 600

Step-by-step explanation:

a)

Confidence Interval For Proportion

CI = p ± Z a/2 Sqrt(p*(1-p)/n)))

x = Mean

n = Sample Size

a = 1 - (Confidence Level/100)

Za/2 = Z-table value

CI = Confidence Interval

Mean(x)=410

Sample Size(n)=850

Sample proportion = x/n =0.482

Confidence Interval = [ 0.482 ±Z a/2 ( Sqrt ( 0.482*0.518) /850)]

= [ 0.482 - 1.645* Sqrt(0) , 0.482 + 1.65* Sqrt(0) ]

= [ 0.454,0.51]

b)

Compute Sample Size ( n ) = n=(Z/E)^2*p*(1-p)

Z a/2 at 0.05 is = 1.96

Samle Proportion = 0.482

ME = 0.04

n = ( 1.96 / 0.04 )^2 * 0.482*0.518

= 599.472 ~ 600

8 0
3 years ago
On Monday 430 students went on a trip to the zoo all 9 buses were filled and seven students had to travel in cars how many stude
tankabanditka [31]

Answer: 47 students

Step-by-step explanation:

430 students went on a trip with the majority of them going on buses.

7 students however, had to use cars.

The number of students who used buses are:

= 430 - 7

= 423 students

The number of students in each bus is:

= No. of students taking buses / no. of buses

= 423 / 9 buses

= 47 students

7 0
3 years ago
What percentage increase occurs in the price of a round-trip economy plane ticket from New York to London by electing to go duri
balandron [24]
To find the percent increase, you will first find the difference in price for the peak season economy and the regular economy price.

$526.3-$440.8=$85.50

Then divide the difference by the beginning price(economy).

85.50/440.8= 0.19

The percent increase is approximately 19%.

8 0
4 years ago
Read 2 more answers
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