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olganol [36]
3 years ago
12

For each equation, choose the statement that describes its solution. if applicable, give the solution.

Mathematics
1 answer:
Lunna [17]3 years ago
5 0

Answer:

This equation has no solution.

Step-by-step explanation:

Perform the indicated multiplication:  5(y+1)-7 = 3(y-1)+2y

We get 5y + 5 - 7 = 3y - 3 + 2y.  Subtracting 5y from both sides yields -2 = -3, which is never true.  This equation has no solution.

You might be interested in
What is the average rate of change for ƒ(x) = −2x + 70 over the interval 2 ≤ x ≤ 6?
Anvisha [2.4K]

Answer:

The average rate of change is -2

Step-by-step explanation:

we know that

To find out the average rate of change, we divide the change in the output value by the change in the input value.

In a linear function the average rate of change is a constant and is equal to the slope of the function

The linear function in slope intercept form is equal to

f(x)=mx+b

where

m is the slope or unit rate of the linear function

b is the y-intercept or initial value of the linear function

In this problem we have

f(x)=-2x+70

so

m=-2\\b=70

therefore

The average rate of change is -2

4 0
3 years ago
Number 7 ;( I wish I was good at math
Setler79 [48]
It’s ok I will try to figure out an answer
8 0
3 years ago
HELP!!<br> This is for my geometry exam and i don’t understand <br> please help
rusak2 [61]

Answer:

Step-by-step explanation:

Sin 58° = 0.848 = BC/13

So

BC = 0.848*13 = 11.024

4 0
2 years ago
A farmer finds that if she plants 85 trees per acre, each tree will yield 80 bushels of fruit. She estimates that for each addit
vova2212 [387]

Answer:

52 Trees

Step-by-step explanation:

If she plants 85 trees per acre, each tree will yield 80 bushels of fruit.

Yield = 85 X 80

Let x be the additional tree planted per acre.

For each additional tree planted per acre, the yield of each tree will decrease by 4 bushels.

Therefore, the yield:

F(x)=(85+x)(80-4x)\\F(x)=6800-260x-4x^2

Next, we maximize F(x) by taking its derivatives and solving for its critical point.

F'(x)=-260-8x\\$Setting $F'(x)=0,$ we have:$\\-260-8x=0\\8x=-260\\$Divide both sides by 8$\\x=-32.5

F''(x)=-8, $therefore we have a maximum

It is apparent that she currently has too many trees per acre. To get a maximum harvest, she needs to reduce the number of trees by approximately 32.5 trees.

Therefore, number of trees per acre she should plant:

85+(-32.5)

=85-32.5

=52.5 Trees

Since the number of trees can only be an integer and it cannot be greater than 52.5, the number of trees to be planted per acre to maximize her harvest is 52.

5 0
3 years ago
Which of the following expressions are equal to -58? Select all that apply.
timama [110]
0 - 78 - (-34) + (-14)
34 - 78 - 14
34 + (-14) - 78
I believe those are the correct answers
4 0
2 years ago
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