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Aneli [31]
3 years ago
15

2n > -20 Please help N=?

Mathematics
2 answers:
serg [7]3 years ago
6 0
I just need points but I hope you do good
Wewaii [24]3 years ago
3 0

Answer:

The value of x>-10

Step-by-step explanation:

The interval notation if you need it is (-10,♾)

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2. Deon wants to find the perimeter of a square with side length 6m - 3. Write two expressions that represent the perimeter, inc
Ira Lisetskai [31]

Step-by-step explanation:

The perimeter of the given square is: a + a + a + a = 4 a units. Hence, the formula of the perimeter of a square = 4 × (length of any one side).

4 0
2 years ago
Kim also has a sink that is shaped like a half-sphere. The sink has a volume of 4000/3 π in3. One day, her sink clogged. She has
mestny [16]

Answer:

A. 44 times

B. 16 times.

Step-by-step explanation:

We know the volume of the sink, now we need to find the volume of the cup(s) she's using to empty it out. to find out how many scoops she'll have to do.  

We'll assume she can actually empty it all, even if it's unlikely he can scoop the last 5%-10% of it due to the shapes/sizes of the sink and the cup. We'll also assume she completely fills the cup (which is impossible due to angles).

The volume of the sink is 4000/3 π cubic inches

a - Conical cup, diameter 6 inches (radius = 3), height: 10 inches.

We remember the volume of a cone is found using this formula:

V = (π r² h) / 3

So, we have:

V = (π * 3²  * 10) / 3 = 90 π  / 3

So, how many times does Kim has to scoop (S):

S = \frac{4000 \pi /3 }{90 \pi /3 } = 44.44

Of course, she can't scoop 0.44 times... Normally we would round it up,  <u>but the question says to round it to the nearest whole number.</u>

So, Kim will have to scoop 44 times with this first cup.

b - Conical cup, diameter 10 inches (radius = 5), height: 10 inches.

We remember the volume of a cone is found using this formula:

V = (π r² h) / 3

So, we have:

V = (π * 5²  * 10) / 3 = 250 π  / 3

So, how many times does Kim has to scoop (S):

S = \frac{4000 \pi /3 }{250 \pi /3 } = 16

So, Kim will have to scoop 16 times with this second cup.

4 0
3 years ago
What is 8 (x+y) - 4 (x-y) ?
tankabanditka [31]

Answer:

4X+12 y

Step-by-step explanation:

.......................

plz..........

mark it as a brilliant answer

8 0
3 years ago
Tony makes a phone call at a pay phone. The charge is 25 cents for the first four minutes,and 19 cents for each additional minut
Amiraneli [1.4K]
C=x.19+.25
C means the total cost
X means the extra minutes
6 0
3 years ago
Hey if you could help me with this it'd mean a lot I can't figure it out
Blababa [14]

Answer:

L = 12  S = 5

Step-by-step explanation:

L+S=17

3L+2S=46

Multiply the first equation by -2

-2L -2S = -34

Then add it to the second equation

-2L -2S = -34

3L+2S=46

------------------

L = 12

Now we can find S

L+S = 17

12 + S = 17

Subtract 12 from each side

S = 17-12

S = 5

6 0
3 years ago
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