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wolverine [178]
3 years ago
12

a ventilation fan is installed in a vertical position as the fan rotates the distance in inches between the tip of a fan blade a

nd the ceiling is modeled by y=6cos(2000 pix)+11 where x is time in minutes. how many times does the fan rotate each minute?
Mathematics
1 answer:
astra-53 [7]3 years ago
6 0

Answer:

1,000

Step-by-step explanation:

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I'll mark you brainlist and give you 5 star I just need a lot of help
Softa [21]
ANSWER: M(-9,-4) to M’(-5,2)
If (x,y) is to (x+4,y+6)
Then (-9,-4) is to (-9+4,-4+6)
Hence (-9,-4) is to M’(-5,2)
Hopefully it’s correct
4 0
3 years ago
Read 2 more answers
If f(x) and its inverse function, f(x), are both plotted on the same coordinate plane, where is their point of intersection?
Tcecarenko [31]

Answer:

(2,2)

Step-by-step explanation:

The graph of a function and that of its inverse should be always symmetric around the line y = x (goes at 45 degrees and crosses the origin of coordinates).

Therefore any intersection of the graphs must lie on the line y = x, which forces the x value of the intersection point to be the same as the y-value.

The only option shown where x and y have the same numerical value is the third listed option : (2,2)

7 0
3 years ago
Help me please i’m struggling, u don’t have to explain
Rom4ik [11]
<h3>Answer:  10 cm  (choice A)</h3>

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

Explanation:

One equation we could solve is

x/2.5 = 30/7.5

Note the x/2.5 has us dividing the vertical sides, while 30/7.5 is the same idea for the horizontal sides. The order is large over small. You could do small over large, but make sure you keep both sides consistent.

Solving for x leads to...

x/2.5 = 30/7.5

x*7.5 = 2.5*30

7.5x = 75

x = 75/7.5

x = 10  (choice A)

There are many other possible equations that lead to the same answer. One other possible equation is x/30 = 2.5/7.5

These proportions are possible due to the fact we have similar triangles.

7 0
3 years ago
marlee spins a spinner and rolls 1-6 # cube. the spinner has 5 equal parts # 1-5 . what is the probability she will spin an even
forsale [732]
The events are independant (i.e. what she rolls on the cube has no impact on how the spinner works). The probability of two independant events is given by: 

P_t = P_{cube} \times P_{spin}

For the cube, 1/2 the numbers meet our requitment of being even, so:
P_{cube} = \frac{Desired}{Total} = \frac{even}{total} = \frac{3}{6} =\frac{1}{2}

For the spinner, there are 3 odds out of 5 (1, 3 & 5) so:
P_{spin} =\frac{Desired}{Total} = \frac{odd}{total} = \frac{3}{5}

and then:
P_T = P_{cube} \times P_{spin}
P_T =\frac{1}{2} \times \frac{3}{5}
P_T =\frac{3}{10}

6 0
4 years ago
what is the answer to if i have four pizzas and its six friends they all het six pizza will it be enough for all of his friends
qwelly [4]
Yes,because 4* 8=36 slices and so 6*6=36 total.
8 0
3 years ago
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