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
Alex Ar [27]
3 years ago
11

Please I need help how do you solve 5 + x to the 2nd power = 2x2 + 13

Mathematics
1 answer:
Sveta_85 [38]3 years ago
7 0

Answer:

it has no real solutions

Step-by-step explanation:

5 + x² = 2x² + 13

first simplify by moving the 2x² to the left and the 5 to the right:

x² - 2x²=  13 - 5

- x²=  8

x = +/- √-8 has no (real) solutions

You might be interested in
Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
cestrela7 [59]

Answer:

x = √47

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Trigonometry</u>

  • [Right Triangles Only] Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

<u>Step 1: Define</u>

We have a right triangle. We can use PT to solve for the missing side length.

<u>Step 2: Identify Variables</u>

Leg <em>a</em> = 5

Leg <em>b </em>= <em>x</em>

Hypotenuse <em>c</em> = √72

<u>Step 3: Solve for </u><em><u>x</u></em>

  1. Substitute [PT]:                    5² + x² = (√72)²
  2. Exponents:                           25 + x² = 72
  3. Isolate <em>x</em> term:                      x² = 47
  4. Isolate <em>x</em>:                               x = √47
8 0
3 years ago
You want to rent a car for the day.Prestige car rentals charges $47 plus $0.07 per mile to rent a midsize vehicle . Gateway Auto
jolli1 [7]

Answer:

240 miles

Step-by-step explanation:

Given that:

Charges offered by Prestige car rentals for renting a midsize vehicle:

Fixed charges = $47

Per mile charges for renting a midsize vehicle = $0.07

Charges offered by Gateway Auto for renting a midsize vehicle:

Fixed charges = $35

Per mile charges for renting a midsize vehicle = $0.12

To find:

Number of miles for which both the companies charge the same price?

Solution:

Let the number of miles for which both the companies will charge the same price = x miles

Charges for one mile by Prestige car rentals = $0.07

Charges for x miles by Prestige car rentals = $0.07x

Total charges by Prestige Car rentals = $47 + $0.07x

Charges for one mile by Gateway Auto = $0.12

Charges for x miles by Gateway Auto = $0.12x

Total charges by Gateway Auto = $35 + $0.12x

As per question statement, the charges are same:

\$47 + \$0.07x = \$35 + \$0.12x\\\Rightarrow 12=0.05x\\\Rightarrow x=\dfrac{1200}{5}\\\Rightarrow \bold{x=240\ miles}

4 0
2 years ago
×-2+2×+4+2×-2=180 what does x equal in this equation.
daser333 [38]

Answer:

<u>x = 36</u>

Here's how I got that:

<em>    - Group like terms -</em>

x - 2 + 2x + 4 + 2x - 2 = 180

                    ↓

      5x - 2 + 4 - 2 = 180

                    ↓

              5x = 180

<em>  - Divide both sides by 5 - </em>

<em>         </em>  5x/5 = 180/5

                   ↓

<em>                </em><u><em>x </em></u><u>= 36</u>

<em>~ That's all folks ~</em>

<em>-Siascon</em>

6 0
2 years ago
Which binomial is a factor of the expression?<br><br><br>Zoom in to see clearer :)​
sweet [91]

Answer:

x + 3 is the factor of given expression !!!

Step-by-step explanation:

here's the solution in attachment.

8 0
3 years ago
Petra jogs 2 miles in 24 minutes. At this rate, how long would it take her to jog 10 miles?
mestny [16]

Answer:

120 Minutes

Step-by-step explanation:

24 minutes / 2 miles = 12 minutes / 1 mile

12 minutes / 1 miles = x minutes / 10 miles

Cross multiply

12*10/1 = x

120 / 1 = x

x = 120

Hope that helps!

6 0
3 years ago
Other questions:
  • I really need help!!!
    5·1 answer
  • Does a triangle with the sides of 25 cm, 24 cm, and 7 cm form a right triangle?​
    15·1 answer
  • a meter is a unit of length approximately equal to 39.37 inches. if someone is 1.98 meters tall what is their approximate height
    7·2 answers
  • The cost of labor for servicing cars at B&amp;B Automotive is $50 for each whole hour or for any fraction of an hour. There is a
    6·1 answer
  • Two coins are in a hat. The coins look alike, but one coin is fair (with probability 1/2 of Heads), while the other coin is bias
    11·1 answer
  • A fair coin is tossed three times in succession. The set of equally likely outcomes is {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT}.
    5·1 answer
  • What does x = ? <br><br> Somebody please help me
    11·1 answer
  • 18 inches equals how many yards
    15·1 answer
  • What is the lower quartile of the annual wind speeds in Chicago?
    6·1 answer
  • What percent of 235 is 148.05
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!