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makkiz [27]
3 years ago
6

5x+4y=-12 Y=-2x-9 What is x

Mathematics
2 answers:
statuscvo [17]3 years ago
7 0

Answer:

x=−8,y=7

Step-by-step explanation:

kaheart [24]3 years ago
5 0

Answer:

X = -16

Step-by-step explanation:

5x+4y=-12 Y=-2x-9

substitute the value of y

5x + 4(-2x - 9)=12

solve the equation

x=-16

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What fraction and decimal, in the hundredths is equivalent to 7/100?
aliya0001 [1]

Answer:

0.07 and

Step-by-step explanation:

convert the fraction into a decimal by dividing the numerator by the denominator.

7 0
3 years ago
In order to estimate the mean amount of time computer users spend on the internet each month, how many computer users must be su
prisoha [69]

Answer:

1568

Step-by-step explanation:

The computation of the minimum sample size is shown below:

Given that

Error E = 11

The population standard deviation \sigma =217

Confidence level 1-α = 95%

Now following formula should be used

n > (Zalpha ÷ 2 × sigma ÷ E)^2

As we know that

Zalpha ÷ 2= 1.96

Now the sample size is

n> (1.96 × 202  ÷ 10)^2

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6 0
2 years ago
The cost, in dollars, of a one-day car rental, is given by C (x) = 31 + 0.18x, where x is the number of miles driven. In this fu
julia-pushkina [17]

Answer:

hi

Step-by-step explanation:

the function is c(x) = 31 + 0.18*x

where $31 is a fixed cost, and $0.18 is the cost per mile drive (where the number of miles driven)

So the fixed cost, $31, is the cost per day of rent (this price does not depend on the number x), and the linear cost, $0.18, is the cost per mile driven (because this number is multiplied by x in the function), then the right answer is B: "$31 is the cost per day to rent the car and $0.18 is the cost per mile."

5 0
2 years ago
What is the remainder in the synthetic division problem
denis-greek [22]

Answer:

C

Step-by-step explanation:

1 | 4   6   - 2

        4     10

  ------------------

   4   10    8 ← remainder

 

3 0
3 years ago
Read 2 more answers
What is the domain and range of the graph?
Andreas93 [3]

Answer:

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8 0
2 years ago
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