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KengaRu [80]
3 years ago
7

The points (3, 9) and (–3, –9) are plotted on the coordinate plane using the equation y = a • x. What is the value of a?

Mathematics
1 answer:
iren [92.7K]3 years ago
5 0

Answer:

multiply

Step-by-step explanation:

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Rita makes and sells necklaces. The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make
Tresset [83]

Answer:

The error she made was that she was adding x and 2.75. She should subtract 2.75 from x.

Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.

Step-by-step explanation:

The error she made was that she was adding x and 2.75.

She should write the equation as 8 (x - 2.75) = 78; as she spends $2.75 to make a necklace.

By using the correct equation: 8 (x - 2.75) = 78

=> 8x - 22 = 78

=> 8x = 78 + 22

=> 8x = 100

=> x = 100/8

=> x = 12.5

Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.

Hope this helps you.

3 0
3 years ago
The diameter of the wheel of a unicycle is 0.5m. David tries to ride the unicycle and manages to go in a straight line for 27 fu
Tema [17]

Answer:

42.4 is the answer I hope that helps

6 0
3 years ago
This table shows a value that represents an exponential function what is the average rate of change for this function for the in
aliya0001 [1]

Answer:

Option A is correct, i.e. 12.

Step-by-step explanation:

Given is the table of x&y relationship which represents an exponential function.

The average rate of change for a function can be found using the following formula:-

F_average = { f(b) - f(a) } / (b-a)

Given a = 3 and b = 5.

From the table, f(3) = 8 and f(5) = 32.

So, F_average = (32-8)/(5-3)

F_average = 24/2 = 12.

Hence, option A is correct, i.e. 12.

4 0
3 years ago
I really need help with this can someone help me?
Klio2033 [76]
3/5 is the answer!!!!
7 0
3 years ago
How many triangles can you make with straws the lengths 2,1,2 inches
Yuliya22 [10]

Answer:

You can't make any triangle

Step-by-step explanation:

we know that

The T<u>riangle Inequality Theorem</u> states that the sum of any 2 sides of a triangle must be greater than the measure of the third side.

so

In this problem

2+1>2

3>2 -----> is not true

therefore

You can't make any triangle.

5 0
3 years ago
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