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Arte-miy333 [17]
3 years ago
5

What are the steps for evaluating 3x7-4^(2)?

Mathematics
2 answers:
natima [27]3 years ago
7 0

Answer:

5

Step-by-step explanation:

first multiply 3 by 7 as 3x7=21

again find the square of 4 as 4^2=16

finally, subtract 16 from 21 as 21-16= 5

Tpy6a [65]3 years ago
3 0

Answer:

5

Step-by-step explanation:

If the expression is 3 × 7 - 4^{2} :

  1. 4^{2} = 4 × 4 = 16
  2. Plug 16 in: 3 × 7 - 16
  3. 3 × 7 = 21
  4. Plug 21 in: 21 - 16
  5. 21 - 16 = 5
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The sum of two numbers is 21.
Delvig [45]

Answer:

3 and 18

Step-by-step explanation:

let x be the first number

let 6x be the second number

x + 6x = 21

7x=21

x=21/7

x=3

second number =6x

second number 6x3= 21

5 0
3 years ago
According to the rational root theorem, what are all the potential rational roots of f(x)=5x^3-7x+11
Genrish500 [490]

Answer:

\pm11,\pm1,\pm\frac{11}{5},\pm\frac{1}{5}

Step-by-step explanation:

The given polynomial function is

f(x)=5x^3-7x+11

According to the Rational Roots Theorem, the ratio of all factors of the constant term expressed over the factors of the leading coefficient.

The potential rational roots are

\pm\frac{11}{1}=\pm11

\pm\frac{1}{1}=\pm1

\pm\frac{11}{5}

\pm\frac{1}{5}

4 0
4 years ago
What is the missing value of 5x-2y=30 (8,)
AnnZ [28]

Answer:

In this equation, we can start by understanding that "x" has a value of 8, as given in the ordered pair. When multiplied by 5, this leads to "40 - 2y = 30". Next, we can subtract 40 from both sides of the equation. This leads us to a value of "-2y = -10". The next step would be to divide both sides by -2 as a way of isolating "y", which leads us to a final value of "y = 5". The final ordered pair would be (8,5).

7 0
3 years ago
Help me plz I don't understand !!!!!!!
Aloiza [94]
The answer is D you put 10/5 then simplify
8 0
3 years ago
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