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
vladimir2022 [97]
3 years ago
10

PLEASE HELP WITH #4

Mathematics
1 answer:
Phantasy [73]3 years ago
7 0
A) x=1,-13
B) x= -1 +- square root of 21 dvided by 10
C) x= 3 +- i square root of 7 divided by 2
D) x= 1 +- i square root of 11 divided by 4
You might be interested in
The formula for the volume of a cone is V = jarh, where V is the volume, r is the radius, and h Is the heightWhat is the volume
olga nikolaevna [1]

Given:

The radius, r=4x

The height,

h=21xy^2

To find the volume of the cone:

The volume of the cone formula is,

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

Substitute the values of r and h in the above formula we get,

\begin{gathered} V=\frac{1}{3}\pi\times(4x)^2\times21xy^2 \\ =\frac{1}{3}\pi\times16x^2\times21xy^2 \\ =\pi\times16x^2\times7xy^2 \\ =112\pi x^3y^2 \end{gathered}

Hence, the volume of the cone is

V=112\pi x^3y^2

Thus, the correct option is option D.

7 0
1 year ago
A worker is paid rs. 2130 for 6 days .if his total wage during a month is rs. 9230 find the number of days he worked in the mont
Katyanochek1 [597]

Answer:

26 days

Step-by-step explanation:

If 6 days = rs. 2130

then 1 day = (2130 × 1) ÷ 6

Therefore 1 day = rs 355

For rs. 9230, the number of days he worked:

= 9230 ÷ 355

= 26 days

4 0
3 years ago
In a hypothetical study looking at the scores of 100 people in an entrance exam, it was determined that the average score was 95
blagie [28]

Answer: 0.0228

Step-by-step explanation:

Given : In a hypothetical study looking at the scores of 100 people in an entrance exam, it was determined that the average score was 95 with a standard deviation of 10.

i.e. \mu=95\ \ \&\ \sigma=10

Let x denotes the scores.

We assume that the scores are normally distributed.

Then, the proportion of individuals in this population have a score greater than 115 will be :-

P(x>115)=1-P(x\leq115)\\\\=1-P(\dfrac{x-\mu}{\sigma}

Hence , the proportion of individuals in this population have a score greater than 115 = 0.0228

8 0
3 years ago
Which graph represents the solution set for the inequality 7.5
frutty [35]

Answer:

b

Step-by-step explanation:

6 0
4 years ago
What times 3 gives you 1,000
miv72 [106K]
1,000:3=\frac{1,000}{3}=333\frac{1}{3}\\\\Answer:\boxed{333\frac{1}{3}}\\\\check:\\\\333\frac{1}{3}\times3=\frac{1,000}{3}\times3=1,000
3 0
3 years ago
Other questions:
  • Which exponential function grows the fastest?
    8·2 answers
  • Which expression is EQUIVALENT to (m^8 n^-4) 1/4 ?
    14·1 answer
  • What is the average rate of change of f over the interval [-1, 4] Give an exact number.
    14·1 answer
  • A reporter compared the score of two basketball teams over the past year. When she listed the scores, she found the lists had th
    13·1 answer
  • A gym member ship is 630 per year what is the cost per month
    6·1 answer
  • What is the recursive formula for this geometric sequence?<br> -3, -21, -147, -1029, ...
    11·1 answer
  • What is the new selling price of pair of boots that a store owner buys at wholesale for $30 with a mark-up of 150%?
    6·2 answers
  • What is this answer? 8(x-5)
    5·2 answers
  • At the beginning of the day, the stock market goes down 70 1/2 points and stays at this level for most of the day. At the end of
    14·1 answer
  • If a trip is 2 1/2 hours in a rain storm but 5/6 of that on a sunny day how long is the trip on a sunny day
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!