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SpyIntel [72]
3 years ago
15

Evaluate 12 + 10 ÷ 2 − 3. (5 points) 8 14 2 11

Mathematics
2 answers:
yuradex [85]3 years ago
7 0

Answer:

14

Step-by-step explanation:

PEMDAS

10/2 then 12+5-3

Mandarinka [93]3 years ago
5 0

<u>Option B</u>

<u>ANSWER:</u>

The solution for 12 + 10 ÷ 2 − 3 is 14

<u>SOLUTION: </u>

Given, 12 + 10 ÷ 2 – 3.

Let us use the BODMAS rule to solve this expression.

BODMAS means sequence of operations is brackets, order, division, multiplication, addition, subtraction.

We know that, in BODMAS rule, first division operation should be performed.

\begin{array}{l}{\rightarrow 12+10 \div 2-3} \\ {\rightarrow 12+\frac{10}{2}-3} \\ {\rightarrow 12+5-3}\end{array}

Now, in order, multiplication should be done but in our required expression there is no multiplication terms. So we can go to next operation.  

Next operation is addition operation.

\begin{array}{l}{\Rightarrow 12+5-3} \\ {\Rightarrow 17-3}\end{array}

Now, the last operation is subtraction.

\begin{array}{l}{\rightarrow 17-3} \\ {\rightarrow 14}\end{array}

We got 14 after evaluation.  Hence, option B is correct.

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Step-by-step explanIation:

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8 0
3 years ago
Explain why the expression 9x^3+1/2x^2+3x^-1 is not a polynomial
Nastasia [14]

Answer:

The given expression can't be expressed in polynomial form. Hence, it is not a polynomial.

Step-by-step explanation:

P(x,n) is a polynomial of nth degree if it is of the form,

P(x,n) = a_{0} + a_{1}x + a_{2}x^{2} + a_{3}x^{3} + ......... +a_{n}x^{n}

where n is a finite positive integer and n ∈ N

and 'a_{i}'s are fixed but otherwise arbitrary constants ∀  i = 0(1)n .

Now, the given expression is,

9x^{3} + \frac {1}{2x^{2}} + 3x^{-1}

which  doesn't fit in the above form. Hence, it is not a polynomial.

4 0
4 years ago
The lsrl after an exponential transformation is log yhat=.4785 + 1.468x. What is the exponential form of the regression?
zheka24 [161]

Answer:

10^{0.4785+1.468x}=y

Step-by-step explanation:

So I'm assuming when you typed "log yhat=.4785 + 1.468x", you meant to write: log(y)=0.4785+1.468x. And generally a logarithm can be written in the form log_ba=c which can then be rewritten as b^c=a, but since the log has no base, it's assumed to be 10. So in this case you have the equation:

log_{10}y=0.4785+1.468x, which can then be written in exponential form as:

10^{0.4785+1.468x}=y

8 0
2 years ago
Solve this quadratic equation using the quadratic formula. 5 - 10x - 3x2 = 0
horsena [70]

Answer:

x = (-5 ± 2√10) / 3

Step-by-step explanation:

5 − 10x − 3x² = 0

Write in standard form:

-3x² − 10x + 5 = 0

Solve with quadratic formula:

x = [ -b ± √(b² − 4ac) ] / 2a

x = [ -(-10) ± √((-10)² − 4(-3)(5)) ] / 2(-3)

x = [ 10 ± √(100 + 60) ] / -6

x = (10 ± 4√10) / -6

x = (-5 ± 2√10) / 3

4 0
4 years ago
Read 2 more answers
What two numbers multiply to get 1440 but add to get 78
Maslowich
The answer is 68, Which should be correct

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3 years ago
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