Kelsie works at a bicycle shop as a salesperson. She records the number of bicycles she sells on a daily basis. Here is the probability distribution of
B
=
B=B, equals the number of bicycles Kelsie sells on a randomly selected day, and
T
=
T=T, equals the time she spends filling out daily sales reports.
B
=
#
of bicycles sold
B=# of bicycles soldB, equals, \#, start text, space, o, f, space, b, i, c, y, c, l, e, s, space, s, o, l, d, end text
0
00
1
11
2
22
3
33
T
=
time (minutes)
T=time (minutes)T, equals, start text, t, i, m, e, space, left parenthesis, m, i, n, u, t, e, s, right parenthesis, end text
0
00
10
1010
20
2020
30
3030
Probability
0.30
0.300, point, 30
0.50
0.500, point, 50
0.15
0.150, point, 15
0.05
0.050, point, 05
Find the expected value of the amount of time Kelsie spends filling out daily sales reports.

Step-by-step explanation:

= 4,830 - 3,57 × 10³

= 4,83 - 3,57 × 1.000

= 4,83 - 3.570

= -3.565,17

= -3,56517 × 10³

≈ -3,57 × 10³

Answer:

80%

Step-by-step explanation:

DO

100 divided by .20

Then move the decimal point two spaces to the right

Answer:

where is the question

Step-by-step explanation:

The mass of the load in kilogram is an illustration of subtraction operation

The mass of the load in kilogram is (b) 1645 kg

The complete mass is given as:

[tex]\mathbf{m_t = 2.87\ tonnes}[/tex]

The mass of the lorry is given as:

[tex]\mathbf{m_l = 1.225\ tonnes}[/tex]

The mass of the load is calculated by subtracting the mass of the lorry from the mass of the lorry and its load.

So, we have the following equation:

[tex]\mathbf{m_{load} = m_t - m_l}[/tex]

Substitute known values

[tex]\mathbf{m_{load} = 2.87\ tonnes- 1.225\ tonnes}[/tex]

Subtract

[tex]\mathbf{m_{load} = 1.645\ tonnes}[/tex]

Convert to kilogram

[tex]\mathbf{m_{load} = 1.645 \times 1000kg}[/tex]

Multiply

[tex]\mathbf{m_{load} = 1645 kg}[/tex]

Hence, the mass of the load in kilogram is (b) 1645 kg

Read more about subtraction at:

https://brainly.com/question/20671719

6 gallons

If you have 4 gallons for 30 plants, half of 4 gallons is 2, which will water 15 plants. Add 4 gallons plus 2 gallons, it gives you 6 gallons and 45 plants.

It use 6 gallons of water to water 45 plants.

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

WE have been given that;

Let 4 gallons of water ... 30 plants

Let x gallons of water = ? ... 45 plants

The water will it take to water 45 plants, it can be calculate this using the following steps;

4 * 45 = x * 30

180 = 30 * x    /30

x = 180 / 30

x = 6 gallons of water

Therefore, We will use 6 gallons of water to water 45 plants.

More can be learned about proportions at;

brainly.com/question/24372153

#SPJ2

With the given order of integration, the interval over D is

[tex]\displaystyle \iiint_D f(x,y,z) \, dV = \int_{-3}^{3} \int_{-\sqrt{9-x^2}}^{\sqrt{9-x^2}} \int_{-\sqrt{9-x^2-z^2}}^{\sqrt{9-x^2-z^2}} f(x,y,z) \, dy \, dz \, dx[/tex]

Answer:

60 inches or 5 feet

Step-by-step explanation:

the average height of a brick would be 3 inches

Answer:

y=8x

Step-by-step explanation:

because The equation that represents a proportional relationship, or a line, is y=kx, where k is the constant of proportionality

Answer:

23

Step-by-step explanation:

=3 ( 8 - 4 ) + 2 × 5.5

= 3 (4)+ 2× 5.5

= 12 + 11

=23

Answer:

500 after 1 minute

250 after 2 minutes

125 after 3 minutes

62.5 after 4 minutes

31.25 after 5 minutes

Step-by-step explanation:

Not sure if this is what you needed.

不完整的问题，对不起，伙计。

本题已由中国数学会官方解答（现有会员：2人）

Answer:First term of the AP is 5. Common difference is 13 - 9 = 9 - 5 = 4. ... Hence 52 the term of the AP is 209.

Step-by-step explanation:

Answer:

yes

0x=no x

x has no value in this case

Step-by-step explanation:

6x + 9 = 12

6x = 12 - 9

6x = 3

x = 3/6 = 1/2

Answer:

1/2

Step-by-step explanation:

6x + 9 = 12

6x = 12 - 9

6x = 3

x = 3/6

x = 1/2

Answer:

  C

Step-by-step explanation:

The red graph is shifted right by 1 from the black graph, so its function would be f(x -1) before it is reflected across the x-axis. Normally, such a reflection will be done by multiplying f(x) by a negative number. Here, that negative number is used to divide y, instead.

The transformation would normally be expected to be ...

  y = -1·f(x -1)

By dividing by -1, this becomes ...

  y/(-1) = f(x -1) . . . . . . equation of the red graph

Answer:

ok. it's fine i guess don't know what you did wrong?

Step-by-step explanation:

Answer5 and 7

Step-by-step explanation:

2 1/2 miles / 3 1/3 minutes = 3/4 mile per minute

A. 3/4 mile per minute x 49 minutes = 35 3/4 miles

B 3/4 miles per minute x 60 minutes (1 hour) = 45 miles

Answer:

2 1/2 miles = 5/2 miles

3 1/3 minutes = 10/3 minutes

Here,

in 10/3 minutes travels = 5/2 miles

in 1 minutes travels = (5/2)/(10/3) miles

in 49 minutes travels = (49*(5/2))/(10/3) miles = 36.75 miles

in 60 minutes (1 hour) travels =  (60*(5/2))/(10/3) miles = 45 miles

Answer:

2/5

Step-by-step explanation:

Answer:

Factor the numerator and denominator and cancel the common factors.

Step-by-step explanation:

3x² + 5x - 1

Answer:

it would be A=12bh Substitute 14 for b and 10 for h in the formula and then the area of a tringle would be 70 square meters

Step-by-step explanation:

u welcome hope i help trying to a brainiest so if u mark me brainiest it will make my day

The exponential function that can be used to determine how much of the isotope is left after x number of half-lives is given by:

[tex]A(x) = 90(0.5)^x[/tex]

A decaying exponential function is modeled by:

[tex]A(t) = A(0)(1 - r)^t[/tex]

In which:

In this problem, the initial amount is of A(0) = 90 mg, and we are working with half-lifes, hence r = 0.5, which means that the equation is:

[tex]A(x) = 90(0.5)^x[/tex]

More can be learned about exponential functions at https://brainly.com/question/25537936

sorry if it's wrong I'm pretty sure it's 51.

Answer:

I was confused

Step-by-step explanation:

I'm sorry I'm answering this and wasting your time lol. I was just confused.

x2y3×35 (x+y)=5A

35x3y4=5A

A=35 x^2y^3÷5

Step-by-step explanation:

x2y3×35(x+y)=5A

35×3y4=5A

A=35×^2y^3÷5

Answer:

For the function f(x) = 3x - 8,

f(0) = -8

f(4) = 4

f(-4) = -20

f(1/3) = 7

Step-by-step explanation:

Given:

f(x) = 3x - 8

f(0) = 3(0) - 8

f(0) = 0 - 8

f(0) = -8

f(4) = 3(4) - 8

f(4) = 12 - 8

f(4) = 4

f(-4) = 3(-4) - 8

f(-4) =  -12 - 8

f(-4) = -20

f(1/3) = 3(1/3) - 8

f(1/3) = 1 - 8

f(1/3) = 7

Answer:

[tex]5 - 8 \geqslant z + 4 \\ - 3 \geqslant z + 4 \\ - 3 - 4 \geqslant z \\ \boxed{z \leqslant - 7}[/tex]

Answer:

(3x+2)(2x+1)

Step-by-step explanation:

Answer:

i think its four triangles

Step-by-step explanation:

but , correct me if im wrong ok

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