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
yulyashka [42]
3 years ago
9

Solve the absolute value equation,if possible. If there is no solution, explain. I 5x + 10 I = -7

Mathematics
1 answer:
Ludmilka [50]3 years ago
6 0

Answer:

No solution.

Step-by-step explanation:

The range of the abs. val. function is [0, infinity).  In other words, the output of this function is never negative.  Thus, the equation you have posted has no solution.

You might be interested in
The maximum speed of China’s CRH380A train is 4.873 × 102
Brrunno [24]

Answer:

The maglev train can reach a top speed of 431 km/h (268 mph).

Step-by-step explanation

7 0
3 years ago
Write the square roots of 49 i in ascending order of the angle.
Troyanec [42]

Answer:

The square roots of 49·i in ascending order are;

1) -7·(cos(45°) + i·sin(45°))

2) 7·(cos(45°) + i·sin(45°))

Step-by-step explanation:

The square root of complex numbers 49·i is found as follows;

x + y·i = r·(cosθ + i·sinθ)

Where;

r = √(x² + y²)

θ = arctan(y/x)

Therefore;

49·i = 0 + 49·i

Therefore, we have;

r = √(0² + 49²) = 49

θ = arctan(49/0) → 90°

Therefore, we have;

49·i = 49·(cos(90°) + i·sin(90°)

By De Moivre's formula, we have;

r \cdot (cos(\theta) + i \cdot sin(\theta) )^{\dfrac{1}{2}}  =  \pm \sqrt{r} \cdot \left (cos\left (\dfrac{\theta}{2} \right ) + i \cdot sin\left (\dfrac{\theta}{2} \right ) \right )

Therefore;

√(49·i) = √(49·(cos(90°) + i·sin(90°)) = ± √49·(cos(90°/2) + i·sin(90°/2))

∴ √(49·i) = ± √49·(cos(90°/2) + i·sin(90°/2)) = ± 7·(cos(45°) + i·sin(45°))

√(49·i) = ± 7·(cos(45°) + i·sin(45°))

The square roots of 49·i in ascending order are;

√(49·i) = - 7·(cos(45°) + i·sin(45°))  and  7·(cos(45°) + i·sin(45°))

8 0
2 years ago
A father is 60 years old and his son is half his age. How old was the boy when his father was four times his age?
Archy [21]
He would be 120 yrs old because 60 times 4 is 240 and the son is half of his age so 240 divided by 2 is 120 hope this helped
5 0
3 years ago
Read 2 more answers
Can someone help me on this problem?
Ugo [173]

Answer:

I am just doing it for points

Step-by-step explanation:

The answer is blah blah blah

7 0
3 years ago
At ShopRite, chicken sells for $3.75 per pound. How much would it cost to buy 2.25 pounds of chicken?
nikdorinn [45]

Answer: 8.4375 U.S. dollars2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Help pleaseeeee!!!!!
    14·1 answer
  • 27 miles per gal into kilometers per liter
    9·1 answer
  • 15b − 15b + 3b − 2b = 8<br><br> What is b?
    10·1 answer
  • Which amount of 1 inch square pieces of chocolate would you
    11·2 answers
  • A polling firm wants to use a one-sample z interval to estimate what proportion of voters in a country plan on
    6·1 answer
  • HELPPPP THIS SO HARD
    9·1 answer
  • Can someone pleaseeee help
    10·2 answers
  • To make 12 ounces of hot chocolate, 3 tablespoons of cocoa are needed. How many tablespoons of cocoa are needed to make 72 ounce
    14·1 answer
  • Round to the nearest hundredth
    14·1 answer
  • If tanx = 0.75, what is the value of cosx + sinx ?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!