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Deffense [45]
3 years ago
5

Which expression is equivalent to r^m ÷ r^n? a. r^m − ^n b. r^m ^n c. r^m ⋅ ^n d. r^m ÷ ^n

Mathematics
1 answer:
Murljashka [212]3 years ago
4 0
r^m  \div r^n= r^{m-n}
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Which of the following are solutions to the quadratic equation? Check all that apply x^2 + 12x + 36 = 7
garik1379 [7]

Answer:

x = -6 + \sqrt{7}, x = -6 - \sqrt{7}

Step-by-step explanation:

(x + 6)² = 7

x + 6 = + or - \sqrt{7}

x = -6 + \sqrt{7}, x = -6 - \sqrt{7}

5 0
3 years ago
There are 4 books on a shelf. books are added to the shelf at a rate of 2 books per minute. the total number of books on the she
Bad White [126]

The algebraic equation to represent the given situation is as follows,

y = 4 + 2x

What is an algebraic equation?

The term "algebraic equation" refers to a formulation of the equality of two expressions using the algebraic operations of addition, subtraction, multiplication, division, raising to a power, and extraction of a root on a set of variables.

An expression that includes variables, constants, and algebraic operations is known as an algebraic expression in mathematics (addition, subtraction, etc.).

Forming the Algebraic Equation

Number of book present on the shelf initially = 4

It is given that 2 books are added per minute to the shelf.

If x is the number of minutes, then the books added will be 2x.

If y is the total number of books present on the shelf, then the algebraic equation is given as,

y = Number of books initially present on the shelf  + 2x

⇒ y = 4 + 2x

Thus, y = 4 + 2x is the required algebraic equation.

Learn more about algebraic equation here:

brainly.com/question/953809

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6 0
1 year ago
What is the value of 6x - 3y if x = 5 and y= -1
nadezda [96]

Answer:

33

Step-by-step explanation:

6x - 3y

=> x = 5, y = -1 Substitute in the above equation,

=> 6(5) - 3(-1)

=> 6(5) + 3

=> 30 + 3

=> 33

5 0
2 years ago
Read 2 more answers
What is the value of a
liraira [26]

Answer:

b = 10

Step-by-step explanation:

In this question we have identified that b  ( or short leg ) = 5 brainly.com/question/23589050

In the image provided in that question the, we are told that the hypotenuse = short leg times 2

If we have identified that the short leg = 5 then the hypotenuse = 5 * 2 which is equal to 10

6 0
3 years ago
The ratio of the cost of a tennis racket ro tennis balls is 18:1. If a can of balls cost $5.35, what is the cost of the racket?
siniylev [52]

Multiply the ratio by $5.35

racket : balls = 18×$5.35 : 1×$5.35 = $96.30 : $5.35

The racket costs $96.30.

5 0
3 years ago
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