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andrew-mc [135]
3 years ago
6

Jenny's frying pan has a radius of 8 inches. Find a. the circumference of the frying pan and b. the area of the frying pan. Use

3.14 for pi
Mathematics
1 answer:
Licemer1 [7]3 years ago
5 0
C= 2r * pi or C: Diameter times pi. So the circumference is 25.12 . A= pi times radians squared. Area equals 8 squared times 3.14 . Area is 200.96
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A particle moves along the curve y = 5x^2 – 1 in such a way that the y value is decreasing at the rate of 2 units per second. At
Shtirlitz [24]

Answer:

The correct option is;

Increasing one fifth unit/sec

Step-by-step explanation:

The equation that gives the curve of the particle of the particle is y = 5·x² - 1

The rate of decrease of the y value dy/dt = 2 units per second

We have;

dy/dx = dy/dt × dt/dx

dy/dx = 10·x

dy/dt = 2 units/sec

dt/dx = (dy/dx)/(dy/dt)

dx/dt = dy/dt/(dy/dx) = 2 unit/sec/(10·x)

When x = 1

dx/dt = 2/(10·x) = 2 unit/sec/(10 × 1) = 1/5 unit/sec

dx/dt = 1/5 unit/sec

Therefore, x is increasing one fifth unit/sec.

8 0
3 years ago
Given the points (2, 2) and (-1, -7) find the slope.​
Softa [21]

Slope is change in y over the change in x.

Slope = (-7 - 2) / (-1 -2)

Slope = -9/-3

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6 0
3 years ago
For an essay contest, Annika needs to write 400 words with an absolute deviation of less than 10 words. Using w as a variable, w
saw5 [17]

Answer:

The absolute value inequality to represent the situation is presented as follows;

\left | w -400  \right |

Step-by-step explanation:

The given information are;

The number of words Annika needs to write = 400 words

The absolute deviation of the number of words Annika needs to write = 10 words

When we let the number of words Annika write = w, we have;

The absolute value inequality given that the absolute deviation of the number of words is 10 is given as follows;

\left | w -400  \right |

Therefore we have;

\left | w -400  \right |  gives the statement, -10 < w - 400 < 10.

5 0
3 years ago
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ss7ja [257]
It will cover 2050 square feet
8 0
3 years ago
Input in standard form the equation of the given line.<br><br> The line with m = -1/2 and b = 1
Georgia [21]

Exact Form:

−1/2, b = 1

-12,b=1

Decimal Form:

−0.5,b=1

IF YOU LIKE MY ANSWER PLS GIVE ME BRAINLIEST!!

7 0
3 years ago
Read 2 more answers
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