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3 years ago

To solve a system of equations, you cannot replace a variable with an equal value or expression

Mathematics

1 answer:

Sidana [21]3 years ago

8 0

Answer: This is FALSE, you can replace a variable with an equal value or expression

Step-by-step explanation:

If you can substitute an unknown variable with another equal expression, you can then solve for another variable, and with that equal expression, solve for the first variable.

Learn more here: brainly.com/question/23533399

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Whats the circumference of 5m

MAXImum [283]

C= $\pi$ d.
If 5m is the radius, then multiply it by 2, then multiply it by $\pi$ .
If 5m is the diameter, then just multiply it by only $\pi$ .

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3 years ago

Write an algebraic expression to represent the verbal statement: The product of the difference of m and 7 and 6.

photoshop1234 [79]

Answer:

(m-7) * 6

Step-by-step explanation:

you follow the statement from left to right. You see that there's a product so you write a product sign

then you know its the difference of m-7 on one side and 6 on the other getting

(m-7) * 6

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3 years ago

"x is an exponential random variable with mean equal to 100. what is the probability that x equals 90?"

Svetradugi [14.3K]

Since mean is 100 so Λ=1/100,

But since exponential distribution is continuous distribution so probability at a particular points

Is zero. That probability

That X is equal to 90 degree is 0.

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4 years ago

Y is directly proportional to x^2, if y=9 when x=3, find: a) the constant of proportionality.

Gekata [30.6K]

Answer:

k = 1

Step-by-step explanation:

=> y ∝ x²

So, y = kx² ----------------------------(1)

Where k is the constant of proportionality

Now,

y = 9 when x = 3

Putting in (1)

=> 9 = k(3)²

=> 9 = k(9)

Dividing both sides by 9

=> k = 1

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3 years ago

What 14/27 divided by 7 in simplest for I will brain if right

tamaranim1 [39]

Answer:

0. 074

Step-by-step explanation:

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3 years ago