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
Vlad [161]
3 years ago
14

Two different radioactive isotopes decay to 10% of their respective original amounts. Isotope A does this in 33 days, while isot

ope B does this in 43 days. What is the approximate difference in the half-lives of the isotopes?
a 3 days
b 10 days
c 13 days
d 33 days

Mathematics
2 answers:
Luden [163]3 years ago
8 0

Answer:

3 days

Step-by-step explanation:

took the test

Molodets [167]3 years ago
4 0
It should be c cause I just took the test
You might be interested in
Choose the correct answer with the reason
icang [17]
The answer should be D
Step by Step: |2x-2| <(or equal to) 6
Add 2 on both sides should give you, |2x| < 8
Divide both sides by 2, giving you 4
Other way, is doing the same but -2
6 0
3 years ago
Last questions on this quiz (I always get confused on finding the x value)
zimovet [89]
For the first one, we know that is a right angle. right angles are 90 degrees. if we subtract 90 - 49 that equals 41. so the second value needs to equal 41. since we have a 3 there already, we are going to subtract 41-3, which is 38. x = 38
3 0
3 years ago
Does anyone know the fraction pairs for these? Please help ASAP!
pishuonlain [190]

Answer:

dividing denominators

Step-by-step explanation:

you say for example 12/5, means 12 divides 5 is going to give something 2.4, so as the answer is gonna be 2 hole number 4/5.

3 0
4 years ago
5.) $28,000 invested at a rate of 4% compounded annually
liq [111]

Answer:

ok so we know the amount we know the interest amount but we do know know the period of time so the equation would look like this

28000(0.4)T=I

T=Time

I=interest

3 0
3 years ago
Simplify the expression where possible.(-4 x^2 )^2
Oduvanchick [21]

Answer:

16x^{4}

Step-by-step explanation:

(a^{m})^{n}=a^{m*n} \\\\\\    and   (a*b)^{m}= a^{m}*b^{m}

(-4x^{2})^{2} = (-4)^{2} *(x^{2})^{2}\\\\\\=16 * x^{2*2}\\\\=16x^{4}

6 0
4 years ago
Other questions:
  • Answer part A and part B and explain how you got your answers please ❤️
    13·1 answer
  • 8x-5=-3(3-2x)<br> Sole for x
    5·2 answers
  • If 6700 is invested at a 4.6% interest compounded semi annually how much will the investment be worth in 15 years
    12·1 answer
  • A triangle in Quadrant I is reflected twice, first over the y-axis and then over the x-axis. The new triangle, in Quadrant III,
    9·1 answer
  • Help please I don't know what to do plz just send the answers because I'm tired and I cba to do calculations
    5·1 answer
  • What is the simplified form of the expression 11[6^2/(5^2-4^2)+7]
    11·1 answer
  • What is the value of x?<br> 1/3 \2 units <br> 1/2 /3 units<br> 2 \ 3 units <br> 3. / 2 units
    6·1 answer
  • Can somebody pls help me with this assignment!
    7·1 answer
  • What is 5 times a number ,r, decreased by seven
    14·2 answers
  • A circle is centered at the point (-7, -1) and passes through the point (8, 7).
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!