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Sladkaya [172]
3 years ago
10

bsmiddle" class="latex-formula">
identify any domain restrictions
Mathematics
1 answer:
ruslelena [56]3 years ago
6 0
x\in \mathbb{R}
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W(-7) if w(x)= -2x+1
Mila [183]
⓵
Replace the w with it’s value in the equation :

w⒳ = -2x + 1

-7 = -2x + 1

⓶
Then, you just simplify the right side in order to isolate the x (always take in consideration your priorities of operation) :

-7 = -2x + 1
÷-2 ÷-2

3.5 = x + 1
-1 -1

2.5 = x ☻
6 0
3 years ago
A classroom contains an equal number of boys and girls. If 5 girls leave, twice as many boys and girls remain. What was the orig
lorasvet [3.4K]
The answer is 10 because 5 x 2 is 10
5 0
3 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 the answer for g=ca, for a
vodomira [7]

Answer:

a=g/c

or

g/c=a

Step-by-step explanation:

divide c on both sides and you will get a=g/c or g/c=a

3 0
2 years ago
Timo was curious if quadrilaterals LMNR and PQNO were similar, so he tried to map one figure onto the
Assoli18 [71]

Answer:A

Step-by-step explanation:

first you use the lmnp and pqno to get our full answer

4 0
3 years ago
Read 2 more answers
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