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
Neporo4naja [7]
3 years ago
14

Question 1 Simplify √-100?

Mathematics
1 answer:
Hitman42 [59]3 years ago
6 0

Answer:

√100 = 10

so √-100 =

i√10

You might be interested in
Cell phone plan A costs 79 per month and comes with a free 500 phone. Cell phone plan B costs 50 per month but does not come wit
meriva

Answer: it will take 25 months

Step-by-step explanation:

Let x represent the number of months that it will take for the cost of both plans to be the same.

Cell phone Plan A costs $70 per month and comes with a free $500 phone. This means that the total cost of x months with plan A would be

70 × x = $70x

Cell phone plan B costs 50 per month but does not come with a phone. If you buy the 500 phone and choose plan B, then the total cost of x months with plan B would be

500 + 50 × x = 500 + 50x

To determine the number of months until your cost is the same as Plan A's, we would equate both costs. It becomes

70x = 500 + 50x

70x - 50x = 500

20x = 500

x = 500/20 =25

8 0
3 years ago
30 years ago zoe was 2/3 as old as luke, 18 years ago zoe was 5/6 as old as luke how old are they now
barxatty [35]

Based on the mathematical statements, Zoe is 56 years old and Luke is 66 years old, now

<h3>How to determine how old they are now?</h3>

From the question, we have the following statements that can be used in our computation:

<u>30 years ago</u>

Zoe was 2/3 as old as Luke

<u>18 years ago</u>

Zoe was 5/6 as old as Luke

Let their present ages be represented as

Zoe = x

Luke = y

So, we have the following representations

<u>30 years ago</u>

Zoe was 2/3 as old as Luke

x - 36 = 2/3(y - 36)

<u>18 years ago</u>

Zoe was 5/6 as old as Luke

x - 18 = 5/6(y - 18)

So, we have the following system of equations

x - 36 = 2/3(y - 36)

x - 18 = 5/6(y - 18)

Make x the subject in x - 18 = 5/6(y - 18)

x = 5/6(y - 18) + 16

Substitute x = 5/6(y - 18) + 16 in x - 36 = 2/3(y - 36)

5/6(y - 18) + 16 - 36 = 2/3(y - 36)

Open the brackets

5/6y - 15 + 16 - 36 = 2/3y - 24

Evaluate the like terms

5/6y - 35 = 2/3y - 24

Multiply through by 6

5y - 210 = 4y - 144

Evaluate the like terms

y = 66

Substitute y = 66 in x = 5/6(y - 18) + 16

x = 5/6(66 - 18) + 16

Evaluate

x = 56

Recall that

Zoe = x

Luke = y

So, we have

Zoe = x = 56

Luke = y = 66

Hence, they are 56 and 66 years, now

Read more about equations at

brainly.com/question/2476251

#SPJ1

5 0
1 year ago
The second hand of an analog clock completes an entire rotation in 60 seconds, and the length of the seconds hand is 8 inches. a
g100num [7]
Circumcerence = distance travelled in one full rotation = 2 x π x 8 = 16π

for 2 minutes and 15 seconds,
multiply 16π by 2.25 as 2 minutes is twice the distance of one rotation and 15 seconds is a quarter more

therefore answer is 36π = 113.1 inches
3 0
3 years ago
A ladder is 12 feet long. The base of the ladder is placed 3 feet away from a wall and the top of the ladder rests against the w
katrin [286]

Answer:

9

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Select the explicit formula for the sequence that correspond to this geometric series: 6 + 18 + 54 + 162 + 486
r-ruslan [8.4K]

Answer: ak=6•3k-1

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Andrew’s gross pay is $58,000. He takes a single exemption of $2,000. His state income tax rate is 3.8%. How much will he pay in
    10·2 answers
  • What is the solution to the equation sqrt n= sqrt 3n-3 +1?​
    9·1 answer
  • Can you please please help
    13·2 answers
  • Consider the following incomplete deposit ticket:
    11·2 answers
  • Please solve and explain for number 2
    5·1 answer
  • Y/7 =2/x do those show direct variation ​
    15·1 answer
  • Please help! Find the domain of y = 4 square root 4x + 2
    5·1 answer
  • Round 37.82 to the nearest tenths place.
    8·1 answer
  • Solve for u. 3u=7.5 please help me
    8·2 answers
  • Help picture below problem 12
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!