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hoa [83]
3 years ago
11

Help please! Its late! Xoxo

Mathematics
1 answer:
Mrrafil [7]3 years ago
4 0

Answer:

1)B

Step-by-step explanation:

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Find the area of a circle with radius 2cm, leave your answer in terms of pi
vaieri [72.5K]

Answer:

Area = 4 \pi \ cm^2

Step-by-step explanation:

Area = \pi r^2 = \pi \times 2^2  = 4 \pi \ cm^2

5 0
2 years ago
Read 2 more answers
the Hog's head pub decide to make mixture thst is 50% butterbeer. how much of an 80% butterbeer solution should mixed with 20 ga
evablogger [386]
There are 20 gallons of 20% butterbeer solution.
Assume there are x gallons of 80% solution.

So total amount of the solution will be (x+20) gallons
The final solution is 50%.

So, we can set up the equation as:

0.2(20)+0.8(x)=0.5(x+20) \\ \\ 4+0.8x=0.5x+10 \\ \\ 0.8x-0.5x=10-4 \\ \\ 0.3x=6 x=20.

Thus, there will be 20 gallons of 80% butterbeer solution that is needed to be mixed with 20 gallons of 20% butterbeer solution. 

4 0
3 years ago
For which mapped relation is the domain {1,2,3}?
Serga [27]

Answer:

C

Step-by-step explanation:

For any given function, all first input values (x-values/coordinates) in the relation are considered as the domain values. While the output values (y-values/coordinates) make up the range of the given function.

The mapped relation that has a domain of {1,2,3}, is the mapped relation that has 1, 2, and 3 on the input side on our left.

Therefore, the mapped relation in option C is the answer.

4 0
3 years ago
Today the ratio of the ages of Desai and Shinde is 3:4. Six years hence, Desai’s age will be 24 years. How old is Shinde today?​
V125BC [204]

Answer:

shinde will be 32

Step-by-step explanation:

3 : 4

24  x

cross multiply and you get 32

8 0
3 years ago
Write the following in vertical columns. Then subtract.<br><br>b) 4a - 7c from 4a - 3b + 8c<br>​
andreyandreev [35.5K]

It is instructed to subtract (2a−3b+4c) from the sum of (a+3b−4c),(4a−b+9c) and (−2b+3c−a).

So, First we will do the sum of the three given polynomials,

Sum =(a+3b−4c)+(4a−b+9c)+(−2b+3c−a)

=(a+4a−a)+(3b−b−2b)+(−4c+9c+3c)

=4a+8c

Now, we can perform the subtraction,

∴ Required difference

=(4a+8c)−(2a−3b+4c)

=4a+8c−2a+3b−4c

=2a+3b+4c

6 0
2 years ago
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