What is the symbol of inverse function

Y-intercept is 100 and slope is 5. Partner gave example: Younger brother had 100 small building blocks, but lost 5 of them every

ArbitrLikvidat [17]

Since he lost 5 every month, it should be that the slope is -5, not 5, he is not gaining 5 every month

yint is 100 and slope is -5 would be correct
b=-5m+100
b=number of blocks he has after m months

3 0

3 years ago

Help ill give brainlest pls

Murrr4er [49]

Answer:

D

Step-by-step explanation:

Label the coordinate plane with the numbers so you can see it, you can also use a coordinate plane from online for a reference

8 0

2 years ago

Please help me compute standard deviation! Here is the problem, as written.

aleksandr82 [10.1K]

Answer:

The standard deviation for the income of super shoppers is 76.12.

Step-by-step explanation:

The formula to compute the standard deviation for the grouped data probability distribution is:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

Here,

x = midpoints

$\mu=\sum x\cdot P(x)$

Consider the Excel table attached below.

The mean is:

$\mu=\sum x\cdot P(x)=32.3$

Compute the standard deviation as follows:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

$=\sqrt{259.71}\\\\=76.1155204\\\\\approx 76.12$

Thus, the standard deviation for the income of super shoppers is 76.12.

3 0

3 years ago

-2(3x+9)=-54 AND 2(3x+4) -3x=35 SHOW WORK PLEASE

Naily [24]

Answer:

1. x=6

2. x=9

Step-by-step explanation:

1.

$-2(3x+9)=-54\\-6x-18=-54\\+18 +18\\-6x=-36\\\frac{-6x}{-6} = \frac{-36}{-6}\\x=6$

2.

$2(3x+4)-3x=35\\6x+8-3x=35\\3x+8=35\\-8 -8\\3x=27\\\frac{3x}{3} =\frac{27}{3} \\x=9$

Written Explanation:

1.

-2x(3x+9)=-54

-6x-`8=54 (Distributive property)

Add 18 to both sides

-6x=-36

Divide both sides by -6 (negative divided by a negative equals a positive)

x=6

2.

2(3x+4)-3x=35

6x+8-3x=35 (distributive property)

3x+8=35 (combine Iike terms and then subtract them 6x-3x=3x)

Subtract 8 from both sides

3x=27

Divide both sides by 3

x=9

5 0

3 years ago

At what speed in miles per hour will a bicycle travel if the rider can cause the 26-inch diameter wheel to rotate 90 revolutions

Sati [7]

26' wheel @ 90 rpms = 2,340 inches / min (26 x 90)

2,340 inches / min = 140,400 inches / hour (2,340 x 60)

140,400 inches / hour = 11,700 feet / hour (140,400 / 12)

11,700 feet / hour = approx. 2.216 miles / hour (11,700 / 5,280)

8 0

3 years ago

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What is the symbol of inverse function​

What is the symbol of inverse function