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Misha Larkins [42]
2 years ago
14

7. a) If (4ax + 6ay) sq. unit is the area of a rectangle, find the length and breadth of the rectangle.

Mathematics
1 answer:
MatroZZZ [7]2 years ago
7 0

Answer:

solve

Step-by-step explanation:

solve

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Can someone tell me why a parabola is a function? One that is going up and down. Like this, ∩.
mariarad [96]

Answer:

A parabola is continuous but for y to be function of x the axis must be parallel to the y axis and for x to be a function of the y axis must be parallel to the x axis

4 0
3 years ago
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if staff salaries were 32,000 / month last year and 47,000 /month this year what is the total yearly labor cost increase
vladimir1956 [14]
The total labor year cost increase is 15,000
7 0
3 years ago
Scientist can determine the age of ancient objects by a method called radiocarbon dating. The bombardment of the upper atmospher
Artemon [7]

Answer: 2500 years

Step-by-step explanation:

I'm not quite sure if I'm doing this right myself but I'll give it a shot.

We use this formula to find half-life but we can just plug in the numbers we know to find <em>t</em>.

A(t)=A_{0}(1/2)^t^/^h

We know half-life is 5730 years and that the parchment has retained 74% of its Carbon-14. For A_{0 let's just assume that there are 100 original  atoms of Carbon-14 and for A(t) let's assume there are 74 Carbon-14 atoms AFTER the amount of time has passed. That way, 74% of the C-14 still remains as 74/100 is 74%. Not quite sure how to explain it but I hope you get it. <em>h</em> is the last variable we need to know and it's just the half-life, which has been given to us already, 5730 years, so now we have this.

74=100(1/2)^t^/^5^7^3^0

Now, solve. First, divide by 100.

0.74=(0.5)^t^/^5^7^3^0

Take the log of everything

log(0.74)=\frac{t}{5730} log(0.5)

Divide the entire equation by log (0.5) and multiply the entire equation by 5730 to isolate the <em>t</em> and get

5730\frac{log(0.74)}{log(0.5)} =t

Use your calculator to solve that giant mess for <em>t </em>and you'll get that <em>t</em> is roughly 2489.128182 years. Round that to the nearest hundred years, and you'll find the hopefully correct answer is 2500 years.

Really hope that all the equations that I wrote came out good and that that's right, this is definitely the longest answer I've ever written.

5 0
3 years ago
Consider the figure. Determine the value of y.​
slava [35]

Answer:

47+ y = 180          (linear pair)

y = 133

6 0
3 years ago
Jeremy makes 3 out of every 5 basketball shots he attempts. If he shoots the ball 65 times, how many shots can Jeremy expect to
Fynjy0 [20]

Answer:

39

Step-by-step explanation:

multiply the 5 by 13 and get 65 and multiply thr 3 by 13 its 39

7 0
3 years ago
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