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
DIA [1.3K]
3 years ago
9

Jaclyn estimates that the square root of 50 in the following way: √50 = 2√25 = 2*5 = 10

Mathematics
1 answer:
Harman [31]3 years ago
8 0

Answer:

Jacklyn is wrong because

\sqrt{50}   \ne2 \sqrt{25 }

Step-by-step explanation:

We have that :Jaclyn estimates that the square root of 50 in the following way:

\sqrt{50}  = 2 \sqrt{25}

\sqrt{50}  = 2 \times 5

\sqrt{50}  = 10

Jacklyn is wrong because she made an error at

\sqrt{50}  = 2  \sqrt{25}

The correct expression is

\sqrt{50}  = \sqrt{2 \times 25}

This gives:

\sqrt{50}  = \sqrt{ 25}  \times  \sqrt{2}

\sqrt{50}  =5 \sqrt{2}

You might be interested in
Write the rule for the following arithmetic sequence: 11, 15, 19, 23, …
miv72 [106K]
11,15,19,23

an = 11 + 4(n-1)
an = 11 + 4n - 4
an = 4n + 7
5 0
3 years ago
The volume of a cone of radius r and height h is given by V=πr²h³. If the radius and the height both increase at a constant rate
Aloiza [94]

Answer:

The volume of cone is increasing at a rate 1808.64 cubic cm per second.

Step-by-step explanation:

We are given the following in the question:

\dfrac{dr}{dt} = 12\text{ cm per sec}\\\\\dfrac{dh}{dt} = 12\text{ cm per sec}

Volume of cone =

V = \dfrac{1}{3}\pi r^2 h

where r is the radius and h is the height of the cone.

Instant height = 9 cm

Instant radius = 6 cm

Rate of change of volume =

\dfrac{dV}{dt} = \dfrac{d}{dt}(\dfrac{1}{3}\pi r^2 h)\\\\\dfrac{dV}{dt} = \dfrac{\pi}{3}(2r\dfrac{dr}{dt}h + r^2\dfrac{dh}{dt})

Putting values, we get,

\dfrac{dV}{dt} = \dfrac{\pi}{3}(2(6)(12)(9) + (6)^2(12))\\\\\dfrac{dV}{dt} =1808.64\text{ cubic cm per second}

Thus, the volume of cone is increasing at a rate 1808.64 cubic cm per second.

5 0
3 years ago
Trey went to the batting cages to practice hitting. he rented a helmet for $4 and paid $0.75 for each group of 20 pitches. if he
matrenka [14]
My man paid for 4 groups of 20.
7 0
3 years ago
What is the surface area?<br><br> 2 mm<br> 2 mm<br> 2 mm<br><br> square millimeters
Alona [7]

Answer:

24 mm^2

Step-by-step explanation:

length x width x 6 sides in a cube

(2)(2)(6)=24

4 0
3 years ago
Pls help I need this and I don’t get it
Jobisdone [24]

Answer:

C.

Step-by-step explanation:

Hi there!

To find the answer to this, plug the number values in for n and then solve.

For the answer to be correct, the sum has to be less than 26.

Answers B and D both have numbers that would be equal to 26, so they aren’t right.

Answer A has numbers that would go over 26.

Every number in C can be added to 15 and the sum would be less than 26.

I hope this helps!

3 0
3 years ago
Other questions:
  • What is 1,058/46. Please Explain in steps,and i will mark you brainlest
    8·1 answer
  • Question 16 of 40
    14·1 answer
  • PLEASE HELP IM DUMB AND I NED THIS ASAP
    12·1 answer
  • 4x + 1/3 y 2 what is the value of the expression above when x = 2 and y = 3
    12·2 answers
  • I WILL MARK BRANLIEST IF THIS IS ANSWERED WITHIN 10 MINUTES
    8·2 answers
  • The beginning of the week Joshua had $356 in a savings account at the end of the week he had only $123 in his savings account ri
    13·1 answer
  • The graph shows the relationship between the total cost and the number of erasers bought at the student store. Which of the stat
    10·2 answers
  • A pair of shoes originally costs $42 but is on sale for 33% off. What is the new price? Show how you know.
    9·1 answer
  • What is the distributive property in -6 (x - 6)-
    9·1 answer
  • #2 please help find the<br> mean, median, mode and range. <br> Round answers to nearest tenth
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!