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hammer [34]
2 years ago
14

Solve the following using the elimination method and write the value of x.

Mathematics
1 answer:
yawa3891 [41]2 years ago
4 0

Answer:

the first one is ×=-2-3/5

the second one is ×=1-3y/2

hope it helps

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A square rotated about its center by 360º maps onto itself at different angles of rotation. You can reflect a square onto itself
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A square rotated about its center by 360º maps onto itself at 4 different angles of rotation. You can reflect a square onto itself across 4 different lines of reflection.

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Last​ year, a person wrote 126 checks. Let the random variable x represent the number of checks he wrote in one​ day, and assume
Arisa [49]

Answer:  The mean number of checks written per​ day  =0.3452

Standard deviation=0.5875

Variance  =0.3452

Step-by-step explanation:

Given : The total number of checks wrote by person in a year = 126

Assume that the year is not a leap year.

Then  1 year = 365 days

Let the random variable x represent the number of checks he wrote in one​ day.

Then , the mean number of checks wrote by person each days id=s given by :-

\lambda=\dfrac{126}{365}\approx0.3452

Since , the distribution is Poisson distribution , then the variance must equal to the mean value i.e. \sigma^2=\lambda=0.3452

Standard deviation : \sigma=\sqrt{0.3452}=0.5875372328\approx0.5875

6 0
3 years ago
-2/3 x 3/5 + 5/2 - 3/5 x 1/6
chubhunter [2.5K]

Answer:

sorry im on a time lapse, so the answer is 2  1/2. hope it helps

Step-by-step explanation:

3 0
2 years ago
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If sin A = 8/17 and tan B = 40/9 and angles A and B are in Quadrant I, find the value of * tan(A + B) .
nirvana33 [79]

Step-by-step explanation:

tanA=8/15 and tan B=40/9

tan(A+B)=(tanA+tanB)/1-tanAtanB

(8/15+40/9)/1-(8/15×40/9)

=-672/185

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2 years ago
What is the expression 44 degrees equal to?
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Sin44 is the same as Cos46. Hope this helped.
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3 years ago
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