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
Anastaziya [24]
2 years ago
11

Find the half-life, in days, of Co-60. Round your

Mathematics
1 answer:
iren2701 [21]2 years ago
4 0

Answer:5.3

Step-by-step explanation:

Why

Divide both sides by 8

4=8e ^-0.1308t

0.5=e^-0.1308t

Take log of both sides

In0.5=Ine^-0.1308t

Apply In e^x=x

In0.5=-0.1308

Divide both sides by -0.1308 to solve for t

t=5.3

You might be interested in
How many dollars do you have if you have 90 nickels, 16 dimes, 16 quarters, and 7 fifty-cent pieces? Show your work and explain
tangare [24]

Answer:

$13.60

Step By Step:

A nickle is worth 5 cents.

A dime is worth 10 cents.

A quarter is worth 25 cents.

5 Cents • 90 Nickles = 450

10 Cents • 16 Dimes = 160

25 Cents • 16 Quarters = 400

50 Cents • 7 fifty-cent pieces = 350

450 + 160 + 400 + 350 = 1360

A dollar is worth 100 cents.

1360 ÷ 100 = $13.60

5 0
3 years ago
Read 2 more answers
For right triangle ABC, find the sine ratio of angle θ.
Ket [755]

The sine ratio of angle θ is 4/5 because sin is the ratio to opposite to the hypotenuse.

<h3>What is a right-angle triangle?</h3>

It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.

We have a right angle triangle showing in a picture.

As we know, the sin is the ratio to opposite to the hypotenuse.

Sinθ = 4/5

Thus, the sine ratio of angle θ is 4/5 because sin is the ratio to opposite to the hypotenuse.

Learn more about the right angle triangle here:

brainly.com/question/3770177

#SPJ1

8 0
2 years ago
Find then slope,x-intercept, and y-intercept for the line -3×+2y-1=0​
Oksana_A [137]

Answer:

the slope is 3/2

the x intercept is (-1/3,0)

the y intercept is (0, 1/2)

5 0
2 years ago
Before leaving to visit Mexico, levant traded 270 american dollars and received 3000 mexican pesos. When he returned from mexico
Makovka662 [10]
Levant will receive about 9 american dollars when he exchanges his pesos.

According to this question, 1 american dollar is worth about 11 pesos. In order to find that, you need to divide 3000/270 which gives you around 11. In order to find out how many dollars he will receive for his pesos, you need to divide 100 by 11 which gives you about 9 dollars.
4 0
2 years ago
Read 2 more answers
Help please :( points !
mars1129 [50]
Answer: 2/5

Explanation: 10+8+12 = 30 12/30 = .4 .4 = 2/5
4 0
3 years ago
Read 2 more answers
Other questions:
  • In the figure, ΔABC ΔEDC. Solve for x. Show your work.
    9·2 answers
  • The​ _______ represents the expected proportion of intervals that will contain the parameter if a large number of different samp
    15·1 answer
  • Can I get some help on this Math question plz?
    9·1 answer
  • Six and one-third less a number
    11·1 answer
  • Read the caption! And pls help me :))
    6·1 answer
  • Jane is planning the furniture layout of her living room. On the scale drawing of the living room below, 1 inch represents 2 fee
    10·1 answer
  • Which correct variables describes the slope?<br> A.X/Y<br> B.Y/X<br> C.W/Z<br> D.Z/W
    15·1 answer
  • It is winter if and only if it is the month of<br> December
    7·1 answer
  • Help me please!!!!!!!!!!!!!!!!11
    11·1 answer
  • The hanger image below represents a balanced equation.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!