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3 years ago

Evaluate 8 - 4.7y - x when y= -1 and x= 2.

2 answers:

4 0

Substitute in the values for y and x into the equation.

so..

8 - 4.7(-1) - (2) solve the equation
8 + 4.7 -2
12.7 - 2
10.7

ollegr [7]3 years ago

4 0

If you substitute the values in to the equation, you will get:
8 - (4.7 * -1) - 2 and that will get you to...
8 - (-4.7) - 2
8 + 4.7 - 2
= 10.7

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Joseph and his children went into a movie theater and will buy bags of popcorn and

lisov135 [29]

Answer:

8b + 3.75p ≤ 80

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3 years ago

A factory worker can produce 28 toys in an eight hour day If there are 42 workers in total how many toys are produced every hour

katrin2010 [14]

Answer:

147 toys

Step-by-step explanation:

for 1 person, 28toys/8hours = 3.5toys/ 1hour

for 42 people, 42 * 3.5toys/ 1hour = 147 toys/hour

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3 years ago

The function y = f(x) is graphed below. What is the average rate of change of the

stepladder [879]

Answer:

Average rate of change = 1

Step-by-step explanation:

Average rate of change of a function between x = a and x = b is defined by,

Average rate of change = $\frac{f(b)-f(a)}{b-a}$

We have to find the average rate of change of the function in the interval 2 ≤ x ≤ 4

Therefore, average rate of change of the function = $\frac{f(4) - f(2)}{4-2}$

From the graph attached,

f(4) = 4

f(2) = 2

Average rate of change = $\frac{4-2}{4-2}$

= 1

Therefore, average rate of change of the function in the given interval is 1.

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3 years ago

The rectangle below has an area of 14x^4 + 6x^2 square meters. The width of the rectangle (in meters) is equal to the greatest c

julia-pushkina [17]

Answer:

$w=2x^2$ and $l = (7x^2+3)$

Step-by-step explanation:

The area of a rectangle is $14x^4+6x^2$ which factors through GCF, by finding the greatest common monomial factor between the two.

$14x^4+6x^2 = 2*7x^4 + 2*3x^2 = 2x^2(7x^2+3)$

The length and width of the rectangle are $w=2x^2$ and $l = (7x^2+3)$ .

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3 years ago

The size of each interior angle of a regular polygon is 156 degrees. Work out the number of sides the polygon has.

stira [4]

$\alpha = \frac{n-2}{n} \cdot 180 \ \ \ \ \ \ \ [\alpha =interior\ angle, \ n=number \ of \ sides] \\ \\ 156=\frac{n-2}{n} \cdot 180 \\ 156n=(n-2)180 \\ 156n = 180n - 360 \\ 360 = 180n-156n \\ 360 = 24n \\ n=360/24=15$

The polygon has 15 sides.

4 0

3 years ago