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professor190 [17]
3 years ago
7

Help please it’s for a mastery test

Mathematics
2 answers:
FromTheMoon [43]3 years ago
8 0
The answer is C!! The third option
seropon [69]3 years ago
8 0

Answer:

c.

Step-by-step explanation:

7^5 means it wants 7 times its self 5 times so you get 7x7x7x7x7. I hope this helps, have a good night

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A system of equations is shown below. y = –x – 3 5x + 2y = 9 What is the solution to this system?
erastovalidia [21]

Answer:

x=5\ and\ y=-8

The solution of the system can be given as (5,-8).

Step-by-step explanation:

Given system of equations:

y=-x-3

5x+2y=9

To solve the given system of equations:

Solution:

We will use substitution to solve the given system.

We will substitute the y values in terms of x from the equation y=-x-3 into the other equation to solve for x

Substituting y=-x-3 into 5x+2y=9.

We have:

5x+2(-x-3)=9

<em>Using distribution.</em>

5x-2x-6=9

<em>Combining like terms.</em>

3x-6=9

Adding 6 both sides.

3x-6+6=9+6

3x=15

Dividing both sides by 3.

\frac{3x}{3}=\frac{15}{3}

∴ x=5

<em>Plugging in x=5 into y=-x-3.</em>

We have,

y=-5-3

∴ y=-8

The solution of the system can be given as (5,-8).

4 0
3 years ago
Enter the trigonometric equation you would use to solve for x in the following right triangle. Do not solve the equation.
USPshnik [31]

Answer:

x = sine 70° / 8

Step-by-step explanation:

6 0
3 years ago
Two identical square pyramids were joined at their bases to form the composite figure below.
gulaghasi [49]
The answer is A!

Hope that helps

3 0
2 years ago
Read 2 more answers
The following data shows rainfall in a forest, in inches, on consecutive days of a month:
lorasvet [3.4K]

Answer:

??

Step-by-step explanation:

is there suppossed to be a chart

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Answer:

Step-by-step explanation:

none of above

Ur welcome

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3 years ago
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