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3 years ago

3) Solve system algebraically: y=x- 5x - 7 y = 5x + 9

1 answer:

8 0

I believe it is:
(−16/9, 1/9)
Solve for the first variable in one of the equations, then substitute the result into the other equation.

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Which of these is an example of a continuous random variable?

dalvyx [7]

B.Number of eye blinks in a minute.
We do not have a set amount of blinks per minute.
A.Inccorect,a touchdown is 6 points
C.Speed of a race car rises at a constant rate depending on the car,speed e.t.c
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3 years ago

Please help practice question

shtirl [24]

Its wrong for x = 2

y = (3/4) * 2^2 = 3 (NOT 4)

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4 years ago

What is an rational number

Ahat [919]

A rational number is a number that can be written into a fraction. pi, some square roots, e, etc., are irrational numbers(numbers that cannot be written into a fraction).

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3 years ago

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I REALLY NEED HELP WORTH 10 POINTS URGENT!!!!!

polet [3.4K]

Answer:

$(f\circ g)(4)=31$

Step-by-step explanation:

<u>Composite Function</u>

Given f(x) and g(x) real functions, the composite function named fog(x) is defined as:

$(f\circ g)(x)=f(g(x))$

For practical purposes, it can be found by substituting g into f.

We have:

$f(x)=3x+1$

$g(x)=x^2-6$

Computing the composite function:

$(f\circ g)(x)=f(g(x))=3(x^2-6)+1$

Operating:

$(f\circ g)(x)=3x^2-18+1$

Operating:

$(f\circ g)(x)=3x^2-17$

Now evaluate for x=4

$(f\circ g)(4)=3(4)^2-17=48-17$

$\boxed{(f\circ g)(4)=31}$

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4 years ago

The length of s is 2/3 the length of t. If s has an area of 368 cm squared find the perimeter of the figure

ser-zykov [4K]

$s = \frac{2}{3}t
\\\ \frac{2}{3}t*t = \frac{2}{3}t^2
\\\ \frac{2}{3}t^2 = 368
\\\ t^2 = \frac {3}{2}368
\\\ t^2 = 552
\\\ t \approx 23.5
\\\ s \approx 15.6
\\\ P \approx 78.2$

3 0

3 years ago

Read 2 more answers