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
marissa [1.9K]
3 years ago
11

Solve this problem √-16

Mathematics
1 answer:
a_sh-v [17]3 years ago
3 0

Answer:

4i

Step-by-step explanation:

\sqrt{-1}  = i

Therefore \sqrt{-16} = \sqrt{16} \sqrt{-1} \\=4i

You might be interested in
A scale drawing of a patio is shown at right. The scale is 3 inches : 5.2 feet. What are the length and width of the patio? Find
ANTONII [103]

Answer:

The length is 5.2 and the width is 3 and the area is 15.6

Step-by-step explanation:

To get the area just multiply width by length

5 0
3 years ago
Read 2 more answers
Marissa's Fashions purchases designer boots from a manufacturer for $50.88 per pair. Marissa then adds a certain amount to the p
KATRIN_1 [288]

Answer:

Markup of _66.67_ % or $ _33,92_ per pair of boots

Step-by-step explanation:

In order to find the markup per pair of boots, we need to find the sales price BEFORE tax.

That can be done simply with a cross-multiplication (106.25 represents total price with 6.25% tax, and 100 represent amount of sales before tax)

\frac{90.10}{106.25} = \frac{x}{100}

if we isolate x we have x = (90.10 * 100) / 106.25 = $84.80

We can then easily calculate the markup amount, since the boots were sold $84.80 and Marissa paid $50.88, that means her markup amount is $33.92.

Now, let's calculate the markup percentage by see how much $33.92 represents compared to the initial price of $50.88:

$33.92 / $50.88 = 66.67%

6 0
3 years ago
How do i solve this problem ?
Usimov [2.4K]
N is 7.5 because prq is 3x the size of abc
8 0
3 years ago
Use the given information to find the unknown value:y varies directly as the square of z. When x = 2, then y= 20. Find y when 2
Vladimir79 [104]

Answer

y = 45 when x = 3

Step-by-step explanation:

\begin{gathered} \text{Given that y varies directly as the square of x} \\ \text{This implies that there is a positive relationship betwe}en\text{ y and the square of z} \\ \text{Mathematically, this can be expressed as} \\ y\text{ }\propto x^2 \\ To\text{ turn this expression into an equation, we n}eed\text{ to introduce a proportionality constant k} \\ y=kx^2 \\ \text{ According to the question, y = 20 and x = 2} \\ \text{From the above informaion we can find our k} \\ y=kx^2 \\ 20\text{ = k }\cdot2^2 \\ 20\text{ = k }\cdot\text{ 4} \\ \text{Divide both sides by 4} \\ \frac{20}{4}\text{ = }\frac{k\cdot\text{ 4}}{4} \\ k\text{ = 5} \\ \text{ Find y when }x\text{ = 3} \\ y=kx^2 \\ y\text{ = 5 }\cdot(3)^2 \\ y\text{ = 5 }\cdot\text{ 9} \\ y\text{ = 45} \end{gathered}

8 0
1 year ago
Can someone help me please !!
butalik [34]

Answer:

Step-by-step explanation:

SORRY,I DONT KNOW

4 0
3 years ago
Other questions:
  • PLZ HELP 75 POINTS SHOW WORK
    6·2 answers
  • A visual representation of all the possible outcomes of an event
    11·1 answer
  • Solve for x please!!!!
    14·1 answer
  • What is the solution set for the open sentence with the given replacement set? 4y + 2 = 18, {4, 5, 6, 7}
    8·2 answers
  • Solve (y/-6)+5=9<br> Help please!! Very stuck.
    10·1 answer
  • 1 jar has 26 fluid ounces how many cups do 4 jars contain
    14·2 answers
  • Solve for the variable: (x – 3)2 = 0
    15·2 answers
  • X - Y =4<br> - 2x+y=18<br> Linnear system
    9·1 answer
  • If anyone knows this please help me
    6·1 answer
  • Riddle-if you solve it i will delete your answer and you have to post the riddle. Riddle-you enter a room. 2 dogs, 4 horses, 1 g
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!