1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alla [95]
3 years ago
12

Claudio needs to simplify the expression below. 3.5x2+9(7.1+0.5)+4

Mathematics
2 answers:
Darya [45]3 years ago
4 0
Please use "^" to denote exponentiation.  "x2" doesn't cut it.

Simplify:   <span>3.5x^2+9(7.1+0.5)+4

We must carry out operations in a certain order.  Here, you must do any operations within parentheses first, followed by exponentiation, followed by mult. and div., followed by add. and subtr.

Thus, we get 3.5x^2 + 9(7.6) + 4

... which comes out to 3.5x^2 + 31.5 + 4

Cannot do anything further with 3.5x^2; all we can do is to add 31.5 and 4:

3.5x^2 + 35.5 (answer)</span>
Alexeev081 [22]3 years ago
3 0
It would be 79.4, if you follow complete it in the correct order. (mathematically)

You might be interested in
Write six hundred fifty-eight and twenty-nine thousandths in standard form​
Pepsi [2]

Answer:

658.029

Step-by-step explanation:

hope this helps  (´▽`ʃ♡ƪ)

7 0
2 years ago
Read 2 more answers
A hand consists of 1 card drawn from a standard 52-card deck with flowers on the back and 1 card drawn from a standard 52-card d
miskamm [114]

Answer:

A)   2704 hands

B)   16 hands

C)   144 hands

D)   384 hands

E)   208 hands

F)   400 hands

Step-by-step explanation:

See the attached file for explanation

8 0
3 years ago
Simplify the rational expression. State any restrictions on the variable n^4-11n^2+30/ n^4-7n^2+10
djyliett [7]
To factor both numerator and denominator in this rational expression we are going to substitute n^{2} with x; so n^{2} =x and n ^{4} =  x^{2}. This way we can rewrite the expression as follows:
\frac{n^{4}-11n^{2} +30 }{n^{2}-7n^{2} +10 } =  \frac{ x^{2} -11x+30}{ x^{2} -7x+10}
Now we have two much easier to factor expressions of the form a x^{2} +bx+c. For the numerator we need to find two numbers whose product is c (30) and its sum b (-11); those numbers are -5 and -6. (-5)(-6)=30 and -5-6=-11.
Similarly, for the denominator those numbers are -2 and -5. (-2)(-5)=10 and -2-5=-7. Now we can factor both numerator and denominator:
\frac{ x^{2} -11x+30}{ x^{2} -7x+10} = \frac{(x-6)(x-5)}{(x-2)(x-5)}
Notice that we have (x-5) in both numerator and denominator, so we can cancel those out:
\frac{x-6}{x-2}
But remember than x= n^{2}, so lets replace that to get back to our original variable:
\frac{n^{2}-6 }{n^{2}-2 }
Last but not least, the denominator of rational expression can't be zero, so the only restriction in the variable is n^{2} -2 \neq 0
n^{2}  \neq 2
n \neq +or- \sqrt{2}
5 0
3 years ago
Read 2 more answers
Does anyone know the 4 answers
Naya [18.7K]
Yes, you can divide $5 by 2. There are 100 cense in a dollar, 500 in five dollars, if you divide 500 by 2 you get 250 cense, with each 100 cense equaling $1. You would have $2.50.

Also, you got number 5 wrong, it’s how far he’s gone, not how far he has left.
7 0
3 years ago
Solve the inequality
Marianna [84]

Answer:

The answer to your question is the letter A) x ≥ 0.5

Step-by-step explanation:

Inequality

                           2(4x - 3) ≥ -3(3x) + 5x

Process

1.- Expand

                            8x - 6 ≥  - 9x + 5x

2.- Simplify

                            8x - 6 ≥ - 4x

3.- Add 6 units in both sides

                           8x - 6 + 6 ≥ -4x + 6

4.- Simplify

                                8x ≥ -4x + 6

5.- Add 4x in both sides

                                8x + 4x ≥ -4x + 6 + 4x

6.- Simplify

                                12x ≥ 6

7.- Divide by 12 both sides

                                12x/12 ≥ 6/12

8.- Simplify

                                    x ≥ 1/2  or 0.5

8 0
3 years ago
Read 2 more answers
Other questions:
  • -36 4/9-(-10 2/9)-(18 2/9)
    5·2 answers
  • . The equation d + 6400 = 3/1.3 x 10". 42
    5·1 answer
  • What is 13 4/5 - 10 3/11​
    7·2 answers
  • Find the sum and express it in simplest form <br> (7n^3-9n)+(-8n^3+6n-3)
    11·2 answers
  • 6.1712 rounded to the nearest tenth
    15·2 answers
  • What is the answer to this question? I do not know
    13·2 answers
  • Write the equation of the line graphed below in Point-Slope form. Use the point labeled on the graph. State the slope and point.
    11·1 answer
  • Help me answer this geometry question please!! will give brainliest and 5 stars!!
    13·1 answer
  • 5(2x + 6) = 4x + 13 + 6x + 17
    13·1 answer
  • A man invested R30 000 at 10% how long did it take for him to get R50 000<br>​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!