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
Tema [17]
2 years ago
15

What is the error in the equation

Mathematics
1 answer:
dimulka [17.4K]2 years ago
4 0

Answer:

The fifth line contains the error.

Step-by-step explanation:

Line 1 is the equation.

Lines 2, 3, and 4 are correct.

The error is in the 5th line.

The square root of a negative number is not a real number, so if this problem is solved only with real numbers, there is no solution.

If imaginary numbers are allowed, then the last line should read:

x = \pm\dfrac{i\sqrt{11}}{2}

You might be interested in
What is 938 written in standard form?
Furkat [3]

Answer:

9.38 \times 10^{2}

Step-by-step explanation:

All numbers in scientific notation or standard form are written

                                                                                       m \times 10^n,

where m is a number between 1 and 10.

8 0
3 years ago
Read 2 more answers
A shop sells chocolate, vanilla and strawberry ice creams. 45% of the ice creams sold are vanilla, and 1/4 are strawberry. What
Alinara [238K]

Answer:

Step-by-step explanation:

Total percentage = 100%

And we know that proportions of Vanilla +chocolate +strawberry = 100%

Proportion of Vanilla = 45%

Proportion of Strawberry = 1/4  *100 = 25%

Let proportion of chocolate be represented by variable C;

So, 45% +25% + C = 100%

65% +C = 100%

Subtract 65% from both sides to solve for C;

C=100% - 65%

C = 35%

Therefore there is 35% of chocolate  in the shop.

8 0
3 years ago
Solve for x.<br><br> 3x - 13 = 2<br><br> (SHOW YOUR WORK)
Eddi Din [679]

3x-13=2

move -13 to the other side

sign changes from -13 to +13

3x-13+13=2+13

3x=2+13

3x=15

divide both sides by 3 to get x by itself

3x/3=15/3

cross out 3 and 3, divide by 3 and then becomes 1*1*x=x

x=15/3

x=5

answer:

x=5

7 0
3 years ago
A pole 5 feet tall is used to support a guy wire for a tower, which runs from the tower to a metal stake in the ground. After pl
sammy [17]

The length of the guy's wire to the nearest foot is 89 feet.

The situation forms a right-angled triangle.

<h3>Properties of a right angle triangle:</h3>
  • A right-angle triangle has one angle of 90 degrees.
  • The sides can be found using the Pythagoras theorem.
  • The angles can be found using trigonometric ratios.

The hypotenuse of the triangle is the length of the wire.

let's use the smaller triangle to find the angle opposite the tower. Therefore,

tan ∅ = opposite / adjacent

tan ∅ =  5 / 2

∅ = tan⁻¹ 2.5

∅ = 68.1985905136

∅ = 68.20°

Therefore,

cos 68.20 = adjacent / hypotenuse

cos 68.20 = 33 / hypotenuse

hypotenuse = 33 / cos 68.20

hypotenuse = 88.8606843161

Therefore,

length of wire ≈ 89 feet.

learn more on triangles here; brainly.com/question/25762788?referrer=searchResults

4 0
2 years ago
What is 20 degres equal to
a_sh-v [17]

Answer:

68 farinheit

Step-by-step explanation:

5 0
4 years ago
Other questions:
  • Identify the pattern 192,96,48,24,.... write the next 3 patterns
    13·1 answer
  • Heidi grew her hair out for many years. Her hair was 12/10 of a meter long. She donated her hair by cutting off 5/6 of a meter.
    5·1 answer
  • A swimming pool can be filled in 18hours if water enters through a pipe​ alone, or in 25 hours if water enters through a hose al
    11·1 answer
  • Help asap I really need help
    11·1 answer
  • Which of these are arithmetic sequences?
    15·1 answer
  • When we raise 3to the powe<br>hat root of 3are we finding?​
    5·1 answer
  • WHAT IS THE EQUATION ?? AND TELL ME HOW YOU GOT IT.
    13·1 answer
  • Last week you worked 24 hours, and earned $180.
    7·1 answer
  • Justin uses 2/3 of a gallon of paint to cover 1/12 of his bedroom wall. How much paint is needed to cover the entire wall
    12·1 answer
  • how many even numbers less than 1000 can be formed from the given digits 0,2,3,5; if repetition is not allowed ?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!