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Nastasia [14]
3 years ago
12

I need help answering

Mathematics
1 answer:
Mice21 [21]3 years ago
5 0

Answer:c

Step-by-step explanation:

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The edges of a cube increase at a rate of 2 cm divided by s. How fast is the volume changing when the length of each edge is 40
Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

Let the edge of the cube be a .

Given

\frac{da}{dt} = 2 cm/s

Volume V = a³

\frac{dV}{dt} = 3a^ 2\frac{da}{dt}

= 3a² x 2

= 6a²

If a = 40 cm

\frac{dV}{dt} = 6 \times 40\times40

= 9600 cm³/s .

5 0
3 years ago
Find the following trigonometric values,rounded to 4 decimal places: 1) tan45. 2)sin70. 3) cos30. 4) cos20
harina [27]
1) Tan45 = 1
2) Sin70 = 0.9397
3) Cos30 = 0.8660
4) Cos20 = 0.9397
7 0
3 years ago
In a small library , there are 5 nonfiction books for every 9 fiction books There are 130 a . How many fiction books are there ?
Mice21 [21]

Answer: 234

Step-by-step explanation:

If there are 130 nonfiction books, then there are 234 fiction books

6 0
3 years ago
The total interest on a 5 year 5.2% loan with a principal of $10,000 is 10,000 × 0.052 × 5 = $2,600.
ruslelena [56]

Answer:

truee

Step-by-step explanation:

i had this answer on my test and if i dont get it right sorry

6 0
3 years ago
5. A line has a slope of (-3/2) and a y-intercept of (-4). Write the equation of the line.
KATRIN_1 [288]

Answer:

Y=-3/2x-4

Step-by-step explanation:

Point slope form is

y=mx+b

mx is the slope

and b is the y-intercept

6 0
3 years ago
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