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icang [17]
3 years ago
14

Your teacher finds a catalog that sells posters for $2 each. There is an additional charge of $4 to ship and order. Suppose that

your class paid $54 for posters.
Mathematics
1 answer:
mixer [17]3 years ago
8 0
This question isn’t finished. Please finish typing it out ❤️
You might be interested in
Can you check my question please? thanks for your help.
SVETLANKA909090 [29]

The correct option will be the last one: f(x)= 9sin(6 \pi x)+6

<em><u>Explanation</u></em>

The general equation for sinusoidal function is: f(x)= Asin(2\pi fx)+b, where A=Amplitude, f= frequency and b= y-intercept

Here the maximum value is 15 and the minimum value is -3. So, the distance between maximum and minimum values is 18. That means, the Amplitude, A= \frac{18}{2}=9

Frequency (f) is given as 3 and y-intercept(b) is 6

So, the required function will be:

f(x)= 9sin(2\pi*3x) +6\\ \\ f(x)= 9sin(6\pi x) +6

6 0
4 years ago
The manager is checking the results of the customer satisfaction surveys. The ones he has looked at have scores of 79%, 92%, 71%
Vladimir79 [104]

Answer:

97%

Step-by-step explanation:

for such a question we can use the percentage numbers like real unit numbers, as we need to analyze just the percentage numbers and align them with another percentage number with the result of another percentage number.

so, we just use the percentage numbers and deal with mean values and such like with real unit numbers.

therefore we need to find x

(79 + 92 + 71 + 86 + x) / 5 = 85

as the sum of all numbers divided by the number of measurements is the mean value.

and so,

79 + 92 + 71 + 86 + x = 425

328 + x = 425

x = 97

so, the next site must be 97%, so that the average for the 5 surveys will be exactly 85%

7 0
3 years ago
What is the simplest form of 8m - 5n + 2m + 6n
Ivenika [448]
8m - 5n + 2m + 6n =Simplifying 8m + -5n + 2m + 6n = 0 Reorder the terms: 8m + 2m + -5n + 6n = 0 Combine like terms: 8m + 2m = 10m 10m + -5n + 6n = 0 Combine like terms: -5n + 6n = 1n 10m + 1n = 0 Solving 10m + 1n = 0 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1n' to each side of the equation. 10m + 1n + -1n = 0 + -1n Combine like terms: 1n + -1n = 0 10m + 0 = 0 + -1n 10m = 0 + -1n Remove the zero: 10m = -1n Divide each side by '10'. m = -0.1n Simplifying m = -0.1n.
6 0
3 years ago
Are the two expressions below equivalent. SHOW and EXPLAIN all your
valina [46]

Answer:

No they're not equivalent

Step-by-step explanation:

5(x - 9) + 2x -1 -5(9 - x) - 2x

5x - 45 + 2x - 1 5x - 45 - 2x

7x + 46 does not equal 3x - 45

Explaining isnt my specialty, sorry

8 0
3 years ago
Find sin j? Please I don’t understand
Nataliya [291]
<h3>Answer:   C) 4/8 = 0.5</h3>

=========================================================

Explanation:

The sine ratio involves the opposite over hypotenuse.

With respect to reference angle J, the opposite leg is the one furthest from the angle. So the opposite side is KL = 4. The hypotenuse is always the longest side, always opposite the 90 degree angle, so LJ = 8 is the hypotenuse.

sin(angle) = opposite/hypotenuse

sin(J) = KL/LJ

sin(J) = 4/8

sin(J) = 0.5

3 0
3 years ago
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