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3 years ago

Can you please help me!

Mathematics

2 answers:

andreyandreev [35.5K]3 years ago

8 0

Answer:

113.04

Step-by-step explanation:

All you have to do is substitute the r in the equation.

And of course pi is equal to 3.14

V = 4/3(3.14)3^3

That gives you a volume of around 113.04

fomenos3 years ago

7 0

Answer:

113.04

Step-by-step explanation:

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Question 8 -

FinnZ [79.3K]

Answer:

Her wage on the 8th day is $105 ⇒ answer d

Step-by-step explanation:

* <em>Lets explain how to solve the problem</em>

- The average of set of data = The sum of data/the number of data

- The sum of data = the average of set of data × the number of data

∵ Cindy worked for 15 consecutive days

∵ She is earning an average wage of $91 per day

∴ Her total earning = 91 × 15 = $1365

∵ Her average earning during the first 7 days is $87 per day

∴ Her total earning in the first 7 days = 87 × 7 = $609

∵ Her average earning during the last 7 days is $93 per day

∴ Her total earning in the last 7 days = 93 × 7 = $651

- Her total earning in the 14 days is the sum of the earning in the

first 7 days and the earning during the last 7 days

∵ Her total earning in the 14 days = 609 + 651 = $1260

∵ Her total earning in the 15 days is $1365

- To find her wage on the 8th day subtract her wage of the 14 days

from her wage of the 15 days

∴ Her wage on the 8th day = 1365 - 1260 = $105

* Her wage on the 8th day is $105

7 0

3 years ago

W varies directly with u and inversely with d, in your equation use k as the correct constant of proportionality

OlgaM077 [116]

The equation is given as W varies directly with u and inversely with d, then the equation is written as:
W = k1u
here k2 is the proportionality constant.
and p = k2 $\frac{1}{d}$ here k2 is the proportionality constant.
Thus, combining both equations we get, p = K $\frac{u}{d}$ where K = K1*K2, is the proportionality constant.

6 0

4 years ago

Read 2 more answers

Which equation represents a line that passes through (5, 1) and has a slope of 1/2<br> ?

Illusion [34]

Y-y1=m(x-X1) is the formula.
m is the slope and the y1 and x1 are your points.
leave x and y; the ones without the 1 and solve for y

7 0

4 years ago

A circular flower bed is m in diameter and has a circular sidewalk around it that is m wide. Find the area of the sidewalk in sq

Bess [88]

Answer:

Step-by-step explanation:

$A=\frac{\pi d^2}{4}\\ \\ A=\frac{\pi}{4}((2m)^2-m^2)\\ \\ 0.785(4m^2-m^2)\\ \\ 0.785(3m^2)\\ \\ A=2.355m^2$

8 0

3 years ago

How many whole numders have the sum of 40

cluponka [151]

Answer:

We start with 0 + 40.

1. 0 + 40

2. 1 + 39

3. 2 + 38

4. 3 + 37

.....

keep going....

.....

19. 18 + 22

20. 19 + 21

21. 20 + 20

There are 21 pairs of whole numbers that have a sum of 40.

Step-by-step explanation:

hope this helps :)

6 0

3 years ago