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Licemer1 [7]
3 years ago
9

Solve each equation.

Mathematics
2 answers:
Marat540 [252]3 years ago
7 0

Part A:

Answer: p = 18. because. 18 + 7 is 25.

Part B:

Answer: n = -7

melisa1 [442]3 years ago
4 0

Answer:

a- p=18// b- b=-7

Step-by-step explanation:

a- 25-7 to isolate the p is 18

b- -20= (2n-6)//add 6 to isolate the n by itself// -14=2n//divide by 2 to simplify//n=-7

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I'll mark brainliest for the right answer! Please hurry!
DaniilM [7]

p=36

because 15 is 3 times 5 so just multiply the perimeter


7 0
3 years ago
Put the following equation in standard form and determine the quadratic, linear, and constant coefficients. -3x2 - 8 = 5x - 7
marusya05 [52]

Answer:

  • -3x² -5x -1 = 0
  • -3 (quadratic)
  • -5 (linear)
  • -1 (constant)

Step-by-step explanation:

The equation will be in standard form when terms are listed in order of decreasing degree, and the right side of the equation is 0.

<h3>Standard form</h3>

We can subtract the right-side expression from both sides to get standard form.

  -3x² -8 -(5x -7) = 5x -7 -(5x -7)

  -3x² -8 -5x +7 = 0 . . . . . . . simplify a bit

  -3x² -5x -1 = 0 . . . . . . . . . collect terms

The standard form equation can be written ...

  -3x² -5x -1 = 0

<h3>Coefficients</h3>

The quadratic coefficient is the coefficient of the term with degree 2. The quadratic coefficient is -3.

The linear coefficient is the coefficient of the term with degree 1. The linear coefficient is -5.

The constant coefficient is the coefficient of the term with no variables. The constant is -1.

__

<em>Additional comment</em>

We can make the leading coefficient positive by multiplying the equation by -1. This gives ...

  3x² +5x +1 = 0

with quadratic, linear, and constant coefficients 3, 5, 1.

This is a legitimate answer to this question. In the case of linear equations, the "standard form" has the constant on the right side of the equal sign, and the leading coefficient is required to be positive. A negative leading coefficient can sometimes lead to errors (when the sign is overlooked), so having a positive leading coefficient is often preferred.

8 0
2 years ago
Use set of notation to write the domain and range of the function y=-3x(x+1)^2+3 shown in graph
anygoal [31]

The domain of a function is the set of values of x in which the function can be calculated.

The range of a function is the associated values of the function respect to the domain.

You have the following function:

y=-3(x+1)^2+3

In order to determine the domain and range of the previous function, you consider that the given function is available for any value of x. Then, you have:

dom y: -∞ ≤ x ≤ ∞ : (-∞,∞)

The range of the function can be determine by noticing, on the graph, that the maximum value of the function is y=3 and also you can notice that there is no a limit for negatives values of the function. Then, you have:

ran y: -∞ ≤ y ≤ 3 : (-∞,3]

7 0
1 year ago
(a) Find the amount in the account at the end of 1 year.
irina [24]

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5 0
3 years ago
The bottom of a swimming pool is 10 feet below the surface of the water in the pool. The surface of the water is represented by
iVinArrow [24]

Answer:

I think its +10 above surface

4 0
3 years ago
Read 2 more answers
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