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
Amanda [17]
3 years ago
10

I need your help! Which one's are correct?!

Mathematics
2 answers:
dlinn [17]3 years ago
8 0

Answer:

The first one and the last one

mark brainliest pls

poizon [28]3 years ago
8 0

Answer:

19.85+n = 27.13 and 27.13 = n - 19.85

Step-by-step explanation:

You might be interested in
Translate the sentence into an equation.
nikdorinn [45]

Answer:

75%

√∆€¥π`÷|°||€¥{={¥×€€

5 0
2 years ago
I need help with my statistics class. I am doing a 6 step hypothesis and i am stuck on the alternate and null hypothesis. I am d
mash [69]

What do you need help with?

8 0
3 years ago
Add the expression. Write the sum in simplest form 3 /x+2 + x+1 / x^2 + 5x + 6
Over [174]

Answer: ?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the volume and surface area of the composite figure. Give your answer in terms of π.
irakobra [83]

Answer:

V = 240π cm^3 , S= 168π cm^2

Step-by-step explanation:

The given figure is a combination of hemi-sphere and a cone

<u>Volume:</u>

For volume

r = 6 cm

h = 8 cm

Volume\ of\ cone = \frac{1}{3}\pi r^2h\\= \frac{1}{3}\pi (6)^2*8\\=\frac{1}{3}\pi *36*8\\=\frac{288}{3}\pi\\=96\pi cm^3 \\\\Volume\ of\ hemisphere = \frac{2}{3}\pi r^3\\=\frac{2}{3}*\pi * (6)^3\\=\frac{2}{3}*\pi *216\\=\frac{432}{3}\\=144\pi cm^3 \\\\Total\ Volume= Volume\ of\ cone + Volume\ of\ hemisphere\\= 96\pi +144\pi \\=240\pi cm^3

<u>Surface Area:</u>

For this particular figure we have to consider the lateral area of the cone shape and surface area of the hemisphere

We have to find the lateral height

l = \sqrt{r^2+h^2}\\ l = \sqrt{(6)^2+(8)^2} \\l= \sqrt{36+64}\\ l = \sqrt{100}\\l = 10cm\\\\Surface\ area\ of\ cone = \pi rl\\= \pi (6)(10)\\=\pi *60\\=60 \pi\ cm^2\\\\Surface\ area\ of\ hemisphere = 2\pi r^2\\= 2 \pi * (6)\\= 2 \pi *36\\= 72 \pi\ cm^2\\\\Total\ surface\ Area = Surface\ area\ of\ cone + Surface\ area\ of \ hemisphere\\= 60 \pi + 72 \pi\\=132 \pi\ cm^2

Hence the first option is correct ..

3 0
3 years ago
Calculate the hcf of 125​
scoundrel [369]

Answer:

factors of 125 are:

1, 5, 25, 125

I'm not sure what u mean..... if you want to find hcf of a value then there has to be two value example: hcf of 125 and 225

7 0
3 years ago
Read 2 more answers
Other questions:
  • Evalute 16^1/2×2^-3.
    12·1 answer
  • Graph the line with slope -3 passing through point (1,3)
    8·1 answer
  • "the placement test for a college has scores that are normally distributed with a mean of 600 and a standard deviation of 60.if
    6·1 answer
  • A company has three divisions and three conference rooms for meetings. To keep track of the use of their facilities, for each me
    9·1 answer
  • Graph the line. 2x + y = -4 <br> I need the first 2 points to plot
    10·2 answers
  • Birgetta Homan is a medical assistant. Her annual salary is $31,200. What is her semimonthly salary?
    9·2 answers
  • I need help with this. I do not understand it.
    11·2 answers
  • Five times the difference of a number and 12 minus 4 times the same number is – 36. What is the equation? Also, don't comment if
    13·1 answer
  • Which dimensions can create only one unique triangle?
    10·2 answers
  • A researcher is working with two variables measured at the interval level. Which statistical tool should the researcher use
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!