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
Ne4ueva [31]
3 years ago
11

What is the simplified square root of -20?

Mathematics
1 answer:
poizon [28]3 years ago
5 0

Answer:

do you mean -2\sqrt{5}?

Step-by-step explanation:

You might be interested in
A gasoline pump delivers 4 2/5 gallons of gas per minute. How many minutes will it take to fill a gas tank that holds 17 1/4 gal
Liono4ka [1.6K]
Well if it pumps 4 2/5 per minute that is equal to 4 4/10 in a minute or 4.4 because you multiply the top and bottom of the fraction by two. it’s still the same fraction but it is easy to convert to a decimal now. you could use this fraction but it’s much easier to use decimals. Because the first number is a decimal you should make the second one a decimal too. To do this you need to know that 1/4 of 100 is 25. so now we have these numbers and all you do now is divide 17.25 by 4.4 which could be rounded to 4 because it’s a long decimal
8 0
3 years ago
Translate ƒ(x) = |x| so that it's translated up by 5 units and vertically stretched by a factor of 3. What's the new function g(
zavuch27 [327]

Given:

The parent absolute function is

f(x)=|x|

To find:

The new function if the parent function is translated up by 5 units and vertically stretched by a factor of 3.

Solution:

The translation is defined as

g(x)=kf(x+a)+b                .... (1)

Where, k is stretch factor, a is horizontal shift and b is vertical shift.

If 0<k<1, then the graph compressed vertically by factor k and if k>1, then the graph stretch vertically by factor k.

If a>0, then the graph shifts a units left and if a<0, then the graph shifts a units right.

If b>0, then the graph shifts b units up and if b<0, then the graph shifts b units down.

Parent function is translated up by 5 units. So, b=5

It is vertically stretched by a factor of 3. So, k=3.

There is no horizontal shift. So, a=0.

Now, putting k=3, a=0 and b=5 in (1), we get

g(x)=3f(x+0)+5

g(x)=3f(x)+5

g(x)=3|x|+5       [\because f(x)=|x|]

Therefore, the correct option is D.

5 0
3 years ago
Two trains leave stations 560 miles apart at the same time and travel toward each other. One train travels at 90 miles per hour
lana [24]

Answer: the two trains will meet in 2.8 hours

Step-by-step explanation:

Step 1

Speed of train A  = 90mph

Speed of train B = 110 mph

Since both trains  are travelling towards each other , their effective speed will be= 90 mph + 110mph= 200mph

Step 2

we know that Speed = distance / time

therefore Time = Distance / speed

Distance = 560 miles

Speed = 200 mph

Time = 560miles / 200mph

2.8 hours

5 0
3 years ago
Which equation represents a population of 250 animals that decreases at an annual rate of 21% ?
victus00 [196]

Answer: Choice C.  p = 250(0.79)^t

Work Shown:

p = a*b^t

p = a*(1+r)^t

p = 250*(1+(-0.21))^t

p = 250(0.79)^t

Note that r = -0.21 is negative to indicate we have exponential decay.

3 0
2 years ago
With a coupon, you can get a pair of shoes that normally costs $84 for only $72. What percentage was the discount?
zhenek [66]

Answer:14.3

Step-by-step explanation:

Hope this helps ツ

4 0
2 years ago
Other questions:
  • A student rides her bike to school. her school is 5 miles from her home. she travels an average speed of 850 mph. how much time
    13·1 answer
  • Find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer be
    9·2 answers
  • marta has 14 feet of wire to use make necklaces she needs to know the length in inches so she can determine how many necklaces t
    13·1 answer
  • Is this right 20 points!!!
    8·1 answer
  • Thirteen students entered the business program at Sante Fe College 2 years ago. The following table indicates what each student
    14·1 answer
  • Which sequence of transformations will only produce a figure similar to but not congruent to the figure ABCD
    6·1 answer
  • The total length of rope in feet used to put up tents is 60 times the number of tents
    8·1 answer
  • HELP ASAP <br><br> DONT UNDERSTAND AT ALL LOL
    11·1 answer
  • Which equation represents a line that passes through (2, -1/2) and has a slope of 3?
    8·1 answer
  • A salesperson at a jewelry store earns ​8% commission each week. Last​ week, Ali sold $450 worth of jewelry. How much did Ali ma
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!