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
Hatshy [7]
3 years ago
15

True or false this number is written in scientific notation? .2486 x 10^12

Mathematics
1 answer:
Scilla [17]3 years ago
8 0

Answer:

<h2>It Is True </h2>

It is true because scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8.

You might be interested in
What is the distance from the origin to point P graphed on the complex plane below?
11111nata11111 [884]

Answer:

Sqrt 29

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The pregnancy length in days for a population of new mothers can be approximated by a normal distribution with a mean of days an
solniwko [45]

Answer:

(a) 283 days

(b) 248 days

Step-by-step explanation:

The complete question is:

The pregnancy length in days for a population of new mothers can be approximated by a normal distribution with a mean of 268 days and a standard deviation of 12 days. ​(a) What is the minimum pregnancy length that can be in the top 11​% of pregnancy​ lengths? ​(b) What is the maximum pregnancy length that can be in the bottom ​5% of pregnancy​ lengths?

Solution:

The random variable <em>X</em> can be defined as the pregnancy length in days.

Then, from the provided information X\sim N(\mu=268, \sigma^{2}=12^{2}).

(a)

The minimum pregnancy length that can be in the top 11​% of pregnancy​ lengths implies that:

P (X > x) = 0.11

⇒ P (Z > z) = 0.11

⇒ <em>z</em> = 1.23

Compute the value of <em>x</em> as follows:

z=\frac{x-\mu}{\sigma}\\\\1.23=\frac{x-268}{12}\\\\x=268+(12\times 1.23)\\\\x=282.76\\\\x\approx 283

Thus, the minimum pregnancy length that can be in the top 11​% of pregnancy​ lengths is 283 days.

(b)

The maximum pregnancy length that can be in the bottom ​5% of pregnancy​ lengths implies that:

P (X < x) = 0.05

⇒ P (Z < z) = 0.05

⇒ <em>z</em> = -1.645

Compute the value of <em>x</em> as follows:

z=\frac{x-\mu}{\sigma}\\\\-1.645=\frac{x-268}{12}\\\\x=268-(12\times 1.645)\\\\x=248.26\\\\x\approx 248

Thus, the maximum pregnancy length that can be in the bottom ​5% of pregnancy​ lengths is 248 days.

8 0
3 years ago
If r = 6 units and h = 8 units, what is the volume of the cylinder shown above? Use 3.14 for .
MariettaO [177]

Answer:

the volume of the cylinder is 904.32 m³

Step-by-step explanation:

Volume of a cylinder is \pi r^{2}h

π = 3.14

r = 6 units

h - 8 units

Substitute for the values in the volume equation

V = 904.32

6 0
3 years ago
Put in standard form: (2r2+1)-(2r3+6r+1)
Sonbull [250]

Answer:

Step-by-step explanation:

3 0
3 years ago
In triangle ABC, side AB has a length of 8 cm and side BC has a length of 5 cm. If the triangle has an area of 10 square centime
Vesna [10]
Recall the following formula:

Given a triangle with side lengths a, b, and c. Let the measure of the angle between sides of length a and c be B.

Then, the area of the triangle is given by :

                                 Area= \frac{1}{2}\cdot a\cdot c \cdot \sin B.

 In our example we have: Area=10 square cm, a=8 cm, c=5 cm, and we want to find the measure of the angle between the 2 sides a and c.

Substituting in the formula we have:

10= \frac{1}{2}\cdot 8\cdot 5 \cdot \sin B

Thus, 10=20 \sin B, which means \sin B = \frac{1}{2}.

\frac{1}{2} is the sine of 30^{\circ}, but also 150^{\circ}.


Answer: both 30, and 150 degrees are possible
8 0
3 years ago
Other questions:
  • Number one on wednesdsay <br>90&gt;-9(w+3)
    5·1 answer
  • The contingency table below gives the counts of students by activities and gender. Band Sports Debate Total Male 105 320 7 432 F
    9·1 answer
  • Wondering if anyone could help?
    14·1 answer
  • In the same year, the average finishing time for u.s. women was four hours and 41 minutes. What was their average speed in miles
    5·2 answers
  • Which interval notation accurately represents the domain?
    8·1 answer
  • Please help me for 30 points
    6·1 answer
  • Help ill give brainliest and points
    5·1 answer
  • I need some to solve it today plssssssssssssss
    12·1 answer
  • Courtney has 4/15 bags of flour o use in her donut shop. each bag of flour will make 12.5 batches of doughnut . how many batches
    10·1 answer
  • HELP ASAP THIS DUE TODAY FOR MY BRO
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!