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Sidana [21]
3 years ago
9

F(a) = 2a - 1 g(a) = 4a 1 Find f(a) + g(a) 6a + 2 O 6a-2 Oa+2 O 2a-2

Mathematics
2 answers:
Pavel [41]3 years ago
8 0

Answer:

An aeroplanes velocity changes from 1250m/s as it comes down to land . It accelerates at 4.9m/s² . Calculate how long it took to come to a stop ?

Step-by-step explanation:

i am sorry in never answeres ur question but pls can u help me i am struggling

ludmilkaskok [199]3 years ago
5 0

Answer:

6a-2

Step-by-step explanation:

Fist wright the equation

2a+4a-1-1

add like terms

2a+4a=6a

-1+-1=-2

Combine

6a-2

Hope this helps! Plz award Brainliest : )

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What is the median of the data set?<br><br> 10, 15, 27, 33, 33, 36, 42, 47, 45, 56, 78
pshichka [43]

Answer:

We can see that the number in the middle is 36. Hence the median of the data set is 36 the median of a data set is the number placed at the middle of a data after rearrangement either in ascending order or descending order.

Given the dataset 10, 15, 27, 33, 33, 36, 42, 47, 45, 56, 78

Step-by-step explanation:

36

6 0
2 years ago
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Jeremias invested $20 at a rate of 8.5% compounded continuously. How long would it take to triple his money?
3241004551 [841]

Answer:

  • 13

Step-by-step explanation:

<u>Use formula for continuous interest:</u>

  • A = Pe^{rt}, where r- interest rate, t- time in years

<u>If A = 3P, and r = 0.085 then the equation is:</u>

  • 3P = Pe^{0.085t}
  • 3 = e^{0.085t}
  • ln 3 = 0.085t
  • 1.099 = 0.085t
  • t = 1.099 / 0.085
  • t = 12.9 ≈ 13 years

3 0
3 years ago
Read 2 more answers
a goat tethered to a stake by a rope has grazed the meadow over an area of 12.56msqare around it stretching the rope. i) what is
Nikolay [14]

Answers:

length of rope = 2 meters

perimeter of meadow = 12.56 square meters

=========================================================

Explanation:

Assuming there are no structures (buildings, fences, etc) to get in the way of the goat, this means the goat's area that it can roam is a circle with radius r

The area of the circle is pi*r^2 which is equal to 12.56 square meters

pi*r^2 = 12.56

3.14*r^2 = 12.56

r^2 = 4

r = sqrt(4)

r = 2

The radius of the circle is 2 meters. This is the length of the rope. If the goat goes out as far as it can go, and tries to move left/right, then it will trace out a circle of radius 2. This is assuming the rope is kept fully taut the entire time.

The perimeter of the circle is the same as the circumference

circumference = 2*pi*r

circumference = 2*pi*2

circumference = 4*pi

circumference = 4*3.14

circumference = 12.56

The circumference and area are the same because r^2 = 4 and 2*r = 4 when r = 2. For any other positive r value, the area and circumference will be different values.

So in short, if a friend says that the area of a circle is the same as its perimeter, then you can immediately conclude the radius is 2.

Side note: throughout all of this solution, I used the approximation pi = 3.14 though pi has more decimal digits

7 0
3 years ago
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What is the 75th term of the arithmetic sequence -1, 5, 11
lana [24]

Answer:

75th term = 443

Step-by-step explanation:

a_{n}=a_{1}+d(n-1) \\a_{n}=-1+6(n-1) \\a_{75}=-1+6(75-1) \\a_{75}=-1+6(74)\\a_{75}=-1+444\\a_{75}=443 \\\\

7 0
3 years ago
A company charges $211.25 for 5 trees and 15 shrubs. The company charges 15.25 more for a tree than a shrub. How much does each
postnew [5]
The answer is $1.96 I hope I could help?
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3 years ago
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