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
nirvana33 [79]
3 years ago
15

The half-life of uranium-235 is 700 million years. If you start with 50 atoms of it, how many will you have left after 700 milli

on years?
A. 50
B. 100
C. 25
D. 45
Mathematics
2 answers:
Alecsey [184]3 years ago
8 0
The answer is
A half life pertains to the time it takes for exactly half of a substance to disappear. So, if U235 has a half life of 700 million years, it will take 700 <span>million years for half of it to decay. That would leave .5kg or 500g.</span>
Ksju [112]3 years ago
8 0

Answer:

A 50

<em>i just guess for this answer but i don't really know if it right or not.</em>

<em />

You might be interested in
Kilometers Walked for Charity
masha68 [24]

Answer:what’s the lowest value?

what’s the highest value?

there is your range

Step-by-step explanation:

3 0
3 years ago
A ship's sonar finds that the angle of depression to a wreck on the bottom of the ocean is 15.20. If a point on
Alexxx [7]

Answer:

We have

tan 12.5  = 60 / adj       rearrange  as

adj = 60 / tan 12.5  = about 270.64 m

Step-by-step explanation:

Mark me brainllest

3 0
3 years ago
give the slope of the line (if it exists) and the y intercept (if it exists) and graph the line 5y=3. what is the slope?​
OLga [1]

Answer:

0

Step-by-step explanation:

4 0
3 years ago
What is the greatest common factor of 4-6a
strojnjashka [21]

Answer:

The GFC of 5 and 6 is 2.

Step-by-step explanation:

Hope this helps :))

8 0
3 years ago
The numbers on a football field indicate 10 yard increments. You walk around the perimeter of a football field between the pylon
Roman55 [17]

Answer:

5,333 square yards.

Step-by-step explanation:

Football fields have standard 100 yards length, if you walk the perimeter of a football field you will walk the twice the length and twice the width. Therefore, the width of the field can be found as follows:

306.667 = 2L +2W\\W = \frac{306.667 - 2*100}{2} \\W= 53.33

The area of the playing field is the product of the length by the width

A = L*W\\A= 100*53.33\\A=5333

The area of the playing field is 5,333 square yards.

5 0
3 years ago
Other questions:
  • If angle ASE measures 168. Find the measure of the angle DSE. The Figure may not be drawn to scale?
    13·1 answer
  • The length of a rectangle is 3 meters less than twice its width.
    13·1 answer
  • The perimeter of Raul's picture frame is 108 centimeters. The length of the picture frame is 18 centimeters. What is the width o
    9·1 answer
  • GEOMETRY QUESTION: PLEASE ANSWER FAST!
    10·1 answer
  • How do you graph -4x + y = -3
    14·1 answer
  • Given: triangle LNK, m of angle NLK =72 degrees. m of angle N=58 degrees. MP is perpendicular bisector of side LK and intersects
    12·1 answer
  • A grocer has two kinds of tea: one selling for 80 cents a pound and the other selling for 60 cents a pound. How many pounds of e
    14·2 answers
  • Polygon LMNPQ is shown on the coordinate grid. What is the preempted of polygon LMNPQ
    9·1 answer
  • Can you solve this equation???
    5·1 answer
  • What percent's falls between 0.5 and 0.6
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!