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qaws [65]
3 years ago
15

Please help me please will give brainliest to ​

Mathematics
1 answer:
uranmaximum [27]3 years ago
7 0

Answer:

B.

<h3>step by step explanation</h3>

I hope it's help

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Write an expression for the operation described below.<br> the quotient of z and y
Vsevolod [243]

Answer:

z/y

Step-by-step explanation:

the quotient of z and y

this does no require any work just understand the question

the quotient of z and y means z divide by y

z/y

7 0
3 years ago
At George Washington High School the ratio of graduating seniors that go on to college, as compared to those who do not, is 7 :
soldi70 [24.7K]
First you figure out that the ratio 7:4 is 1.75
Then you do this problem 28 divided by 1.75=16
And 28:16 is the same as 7:4 
Now all you do is add 28+16=44
6 0
3 years ago
A farmer in China discovers a mammal hide that contains 37% of its original amount of C-14. Find the age of the mammal hide to t
Naya [18.7K]

Answer: 54678 years

Step-by-step explanation:

This can be solved by the following equation:

N_{t}=N_{o}e^{-\lambda t} (1)

Where:

N_{t}=54\%=0.54 is the quantity of atoms of carbon-14 left after time t

N_{o}=1 is the initial quantity of atoms of C-14 in the mammal hide

\lambda is the rate constant for carbon-14 radioactive decay

t is the time elapsed

On the other hand, \lambda has a relation with the half life h of the C-14, which is 5730 years:

\lambda=\frac{ln(2)}{h}=\frac{ln(2)}{5730 years}=1.21(10)^{-4} years^{-1}=0.000121 years^{-1} (2)

Substituting (2) in (1):

0.54=1e^{-(0.000121 years^{-1}) t} (3)

Applying natural logarithm on both sides of the equation:

ln(0.54)=ln(1e^{-(0.000121 years^{-1}) t}) (4)

-0.616=-(0.000121 years^{-1}) t (5)

Isolating t:

t=\frac{-0.616}{-0.000121 years^{-1}} (6)

t=54677.68 years \approx 54678 years (7)  This is the age of the mammal hide

8 0
3 years ago
A graph where the horizontal axis shows time (t), numbered 1 to 4, and the vertical axis shows height (h) numbered 10 to 60. Sol
ahrayia [7]

Answer:

the answer is A  hope that helps ya mate.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the value of x in the triangle shown below.
SVETLANKA909090 [29]

Answer:

50

Step-by-step explanation:

Because this is an isosceles triangle, the two bottom angles are equal.

180-80=100

100÷2=50°

6 0
4 years ago
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