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Stels [109]
3 years ago
10

1. Simplify: a^7/a^4

Mathematics
1 answer:
IgorC [24]3 years ago
6 0
1)a^7/a^4
=a^[7-4]
=a³


2) r²s⁴t/r²st³
=s⁴-¹.t¹-³
=s³.t-²
=s³/t²

3)3x^6/18x
=x^5/6





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Tom has $190 and Jane has$60. After each of them received an equal amount of money from their father Tom had twice as much money
serious [3.7K]
Tom got $50 and Jane got $60 dollars because If you add 50 to 190, it gives you 240 and 60 + 60 = 120 which is half of 240 
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3 years ago
For y = 3x - 2x^2 +5x^3<br> show how to find the value for y, when x = 3. Show your work
Mnenie [13.5K]

y \:  =   \: f(x) \:  =  \: 3x \:  -  \: 2 {x}^{2}  \:  +  \: 5 {x}^{3}
Here, y is a cubic function of x.
When x = 3,
y \:  =  \: f(3) \:  =  \: 3(3) \:  -  \: 2 {(3)}^{2}  \:  +  \: 5 {(3)}^{3}
y \:  =  \: 9 \:  -  \: 18 \:  +  \: 135
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Hence, when x = 3, y = 126.
8 0
3 years ago
Read 2 more answers
Solve for the approximate measure of angle C. <br><br> 38.66<br> 36.87<br> 53.13<br> 51.34
Elis [28]

Answer:

m<C  = 36.87degrees

Step-by-step explanation:

Solve for the approximate measure of angle C.

From the given diagram;

AC is the hypotenuse

BC is adjacent to <C

Cos m<C = adj/hyp

Cos m<C = BC/AC

Cos m<C = 20/25

Cos m<C = 0.8

m<C = arccos (0.8)

m<C  = 36.87degrees

8 0
3 years ago
One line has a slope of 1/2 and another has a slope of 1/4. Compare and Contrast the two lines.
Kay [80]

Answer:

the line with the slope of 1/2 will be greater than the one with the slope of 1/4 because 1/2 is greater than 1/4

Step-by-step explanation:

3 0
3 years ago
A plant cell is 0.00001267 meter wide.How is this number written in scientific notation?
MA_775_DIABLO [31]
<span>The answer is 0.00001267 m = 1.267 * 10^(-5) m. In scientific notation, the number is written as two factors - a number m from 0-10 and 10 raised to the n power: m x 10^n. 0.00001267 m = 1.267 x 0.00001 m. 0.00001 m = (0.1)^5 = 10^(-5). So: 0.00001267 m = 1.267 x 0.00001 m = 1.267 x (0.1)^5 m = 1.267 x 10^(-5) m.</span>
3 0
3 years ago
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