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Brrunno [24]
3 years ago
8

You make 35 postcards and sell them for D dollars each. The table to the right shows the predicted sales for different prices, D

. You use the expression D(35−5D) to show your income from sales for the different prices. Drag each statement to the term it describes in the table below.
Mathematics
1 answer:
Ad libitum [116K]3 years ago
4 0

The representations are:

  • D represents the price of each postcard
  • 35 - 5D represents the number of postcard sold
  • D(35 - 5D) represents the income from the sales

<h3>What are expressions?</h3>

Expressions are mathematical statements that contain all of the followings

  • Numbers
  • Mathematical operator
  • Variables

The expression is given as:

D(35 - 5D)

From the question, we understand that:

  • D represents the price of each postcard
  • D(35 - 5D) represents the income from the sales

The above highlights mean that: 35 - 5D represents the number of postcard sold

Read more about expressions at:

brainly.com/question/4344214

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A line with a slope of -2 passes through the point (4,7).
dusya [7]

Answer:

y-7 = -2 (x-4)

Step-by-step explanation:

Point Slope Form:

y-y_{1} = m(x-x_{1} ), where m is the slope of the line

They tell you that the line has a slope of -2, so that will go in the first yellow box.  They also tell you that the line passes through the point (4, 7), so those are the values for x1 and y1.  They've already filled in y1 with 7, so x1 (which is 4) will go in the second yellow box

y-7 = -2 (x-4)

5 0
3 years ago
Help with 4 and 5??????
KiRa [710]
Attached is both solutions in detail.

6 0
4 years ago
Estimate a 15% tip for a meal that cost 26.80<br><br> A. 1.35<br> B. 2.70<br> C. 4.05<br> D. 31. 05
emmainna [20.7K]
I think that this questions answer is A)1.35

5 0
4 years ago
What is the solution to the equation 93x ≈ 7?
s344n2d4d5 [400]
Well, I do not know if you mean 93x = 7 or 9^3x = 7.
So, I will provide the solution for both cases.

In case of 93x = 7:
This case is simple, all you have to do is isolate the x. You need to get rid of the coefficient which is 93. You can simply do this by dividing both sides of the equation by 93 as follows:
93x = 7
93x / 93 = 7/93
x = 7/93

In case of 9^3x = 7:
Now, we need to get rid of the power. The only function that can do this is the log function.
So, we will start by taking log base 10 for both sides of the equation as follows:
9^3x = 7
log(9^3x) = log(7)
This will give:
3x * log(9) = log(7)
Now, the final step is to isolate the x as we did before. To do this, we will need to get rid of 3log(9). This can be done by dividing both sides of the equation by 3log(9) as follows:
3x * log(9) / 3log(9) = log(7) / 3log(9)
This will give us:
x = log(7) / 3log(9) = 0.2952

Hope this helps :)
5 0
4 years ago
Does the graph of y = sin x + cos x have even symmetry, odd symmetry, or neither? Use a graphing calculator.
Neporo4naja [7]
Hello!

Odd functions are functions that are symmetric with respect to the origin.
Even functions are functions that are symmetric with with respect to the y-axis. 

Therefore, the graph of y = sin(x) + cos(x) has no symmetry (neither).

8 0
3 years ago
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