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3 years ago

5x - 6y = 0 y = x solve the system by substitution. a. no solution b. coincident c. (0, 0)

Mathematics

1 answer:

tatiyna3 years ago

8 0

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}5x-6y=0&(1)\\y=x&(2)\end{array}\right\\\\\text{Put (2) to (1):}\\\\5x-6x=0\\-x=0\to x=0\\\\\text{Put it to (2):}\\\\y=0$

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Which equation should you solve to find x?

devlian [24]

the answer is B ........

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1 year ago

Twenty-seven minus of a number (x) is not more than 36. What is the number? A. x > 42 B. x ≥ -6 C. x < 3 D. x ≤ -6

natali 33 [55]

Answer:

Step-by-step explanation:

since it hints that it is less than we can see that B gives it to us also it can't be A cuz 42 is greater than 36

so it is B

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2 years ago

Write an expression for the calculation add 34 and 6 and then multiply 3

Ymorist [56]

We need to write an expression for "add 34 and 6 and then multiply 3"

"Add" represents + operation .

"multiply" represents × operation.

We need to add 34 and 6.

So, we can write 34+6 and then we need multiply the sum by 3.

So, we need to keep above addition of 34 and 6 in parantehsis. We get

(34+6) × 3.

So, the final expression is (34+6) × 3.

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2 years ago

Each morning, Hungry Harry eats some eggs. On any given morning, the number of eggs he eats is equally likely to be 1, 2, 3, 4,

mamaluj [8]

Answer:

Mean = 35

Variance = 291.7

Step-by-step explanation:

Data provided in the question:

X : 1, 2, 3, 4, 5, 6

All the data are independent

Thus,

The mean for this case will be given as:

Mean, E[X] = $\frac{\textup{Sum of all the observations}}{\textup{Total number of observations}}$

E[X] = $\frac{\textup{1+2+3+4+5+6}}{\textup{6}}$

E[X] = 3.5

For 10 days, Mean = 3.5 × 10 = 35

And,

variance = E[X²] - ( E[X] )²

Now, for this case of independent value,

E[X²] = $\frac{1^2+2^2+3^2+4^2+5^2+6^2}{\textup{6}}$

E[X²] = $\frac{1+4+9+16+25+36}{\textup{6}}$

E[X²] = $\frac{91}{\textup{6}}$

E[X²] = 15.167

Therefore,

variance = E[X²] - ( E[X] )²

variance = 15.167 - 3.5²

Variance = 2.917

For 10 days = Variance × Days²

= 2.917 × 10²

= 291.7

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3 years ago

What is 4.110 in word form

irga5000 [103]

Four and Eleven Hundredth

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3 years ago