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kicyunya [14]
3 years ago
7

Help help meeeee pls

Mathematics
1 answer:
Bezzdna [24]3 years ago
5 0
28/5, you cross multiply so 4/5=y/7 would become 5y=28 then you solve for y from there which becomes 28/5
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xz_007 [3.2K]

Answer:

b. cosx + 6 sinx

Step-by-step explanation:

\frac{d}{dx} ( sinx - 6 cos \: x) \\  \\  = \frac{d}{dx}  sinx  - 6\frac{d}{dx}   cos \: x \\  \\  = cos \: x - 6( - sin \: x) \\  \\  = cos \: x + 6 \: sin \: x

7 0
3 years ago
Read 2 more answers
Madison starts with a population of 1,000 amoebas that triples in size every hour for a number of hours, h. She writes the expre
gtnhenbr [62]

Answer: The meaning of each term of the  Madison’s and Tyler’s expressions is mentioned below.

Step-by-step explanation:

Since, when Madison starts with a population of 1,000 amoebas that triples in size every hour for a number of hours, h.

That is, after 1 hour total number of amoebas = 3×1000 = 3^1\times 1000

After 2 hour,  total number of amoebas = 3×3000=3^2\times 100

After 3 hour, total number of amoebas = 3×9000= 3^3\times 1000

similarly, after h hours, total number of amoebas,

f(h) = 3^h\times 1000

where, 1000 is the initial population of amoeba 3 is the growth factor of population and f(h) is the population of amoeba after h hours.

Since, when Tyler starts with a population of 1 amoeba that  increases 30% in size every hour for a number of hours.

That is, after 1 hour total number of amoebas = (1+0.3)^1

After 2 hour,  total number of amoebas =  (1+0.3)^2

After 3 hour, total number of amoebas =  (1+0.3)^3

Similarly, after h hours, total number of amoebas,

f(h) =(1+0.3)^h

Where,  1 is the initial population of amoeba, 0.3 is the growth rate and 1.3 is the growth factor.


5 0
3 years ago
Read 2 more answers
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ch4aika [34]

Answer:

The diameter is 24 so the radius is 12 then we do pi*r^2 or pi*12^2

We can use our numbers and get pi*144 so the area of the circle is 144pi.

If they have given you what pi is

EX:( 22/7 or 3.14)

Just use that instead of pi and multiply 144 to that

8 0
3 years ago
Find the surface area of each solid.
Andre45 [30]

Answer:

232 in^2

Step-by-step explanation:

80 + 80 + 20 + 20 + 16 + 16 = 232

Check previous answer for better explanation!

7 0
2 years ago
Let ​ f(x)=x2−8x+19 ​ . What is the minimum value of the function?​ Enter your answer in the box. ​
ella [17]
The minimum value is 3.
6 0
3 years ago
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