3 years ago

2 The manager of a record store randomly surveyed 20

Mathematics

1 answer:

klio [65]3 years ago

6 0

Answer:

What is this?

Step-by-step explanation:

i need more info to give you an Answer

Maybe one of these will help...

20 / 2 = 10

20 x 2= 40

20 -2= 18

20 + 2 = 22

Duces

Kaz out-

You might be interested in

20 points

kodGreya [7K]

Answer:

a) x=0, x=-10, x=11

Step-by-step explanation:

Just find the x- coordinates for when f(x) intersects g(x).

5 0

3 years ago

help!!! Find x- and y-intercepts. Write ordered pairs representing the points where the line crosses the axes. y=2x+4

zhannawk [14.2K]

y- intercept = (0, 4), x-intercept = (- 2, 0)

to find the intercepts let x = 0 and y = 0 in the equation

x = 0 → y = 0 + 4 =4 ⇒ y-intercept (0, 4)

y = 0 → 2x + 4 = 0 ⇒ x = - 2 ⇒ x- intercept(- 2, 0)

8 0

3 years ago

Keith’s dad is 44 years old if this is 4 years less than three times Keith’s age how old is Keith

Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A recent survey found that 7575% of all adults over 50 wear glasses for driving. In a random sample of 4040 adults over 50, wh

malfutka [58]

Answer:

Mean = 30

standard Deviation = 2.74

Step-by-step explanation:

Formula

mean = np

Standard Deviation = $\sqrt{npq}$

from the question = 40

P = 75% or 0.75

q = 1 - p = 1 - 75% or 1 - 0.75

To find mean

mean = 40 x 0.75

= 30

For Standard Deviation (SD)

Standard Deviation = $\sqrt{npq}$

= $\sqrt{40 X 0.75 X 0.25$

= $\sqrt{7.5}$

:. Standard Deviation = 2.74

5 0

2 years ago

Ally is making a scale diagram of her classroom. She uses a scale factor of 3 centimeters per foot to draw the diagram. The actu

frozen [14]

Multiply 18 * 3 and 20 * 3

18*3 = 54

20 * 3 = 60

Length = 54 cm ; Width = 60 cm

Area = L x W

54 * 60 = 3240

Area = 3240 cm

6 0

3 years ago