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mrs_skeptik [129]
3 years ago
5

What is the surface area of a sphere with a radius of 19 units?

Mathematics
1 answer:
almond37 [142]3 years ago
5 0

Hope this helps. Please mark brainliest if it did

Answer: 4536.46

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43. Simplify (k – 5) - (k2 + 8).
lesantik [10]

Answer:

(D) -k2 + k - 13

Step-by-step explanation:

Pulling out like terms :

2.1     Pull out like factors :

  -k2 + k - 13  =   -1 • (k2 - k + 13)

Trying to factor by splitting the middle term

2.2     Factoring  k2 - k + 13

The first term is,  k2  its coefficient is  1 .

The middle term is,  -k  its coefficient is  -1 .

The last term, "the constant", is  +13

Step-1 : Multiply the coefficient of the first term by the constant   1 • 13 = 13

Step-2 : Find two factors of  13  whose sum equals the coefficient of the middle term, which is   -1 .

     -13    +    -1    =    -14

     -1    +    -13    =    -14

     1    +    13    =    14

     13    +    1    =    14

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Final result :

 -k2 + k - 13

Processing ends successfully

plz mark me as brainliest :)

3 0
4 years ago
Read 2 more answers
Point (5 5/8, 2 1/4) lies on a line that represents a proportional relationship. Write an equation for this relationship. What i
Dmitriy789 [7]

Step-by-step explanation: Do u still want this answer tell me because i dont wanna waste my time lol I will comment the answer if u need it

8 0
3 years ago
jamie joined the marching band. to pay for a uniform, he borrowed $150 for 4 months with 5% interest per month. what was the toa
antiseptic1488 [7]

Answer: $ 180

Step-by-step explanation:

Since, the amount he borrow = $ 150

Also, After borrowing the money for the dress he is charged 5% per month for 4 months,

Thus, The total amount of dress

A = \text{ The initial amount of the dress + The interest he paid for the dress}

A = 150 + \frac{150\times 5\times 4}{100}

A = 150 + 30 = 180\text{ dollars}

Hence, the total amount of the dress = $180

8 0
4 years ago
Divide 18 in two parts so that sum of their reciprocals is 2/5
inn [45]

Answer:

3.6

Step-by-step explanation:

I think that is the answer but im not 100 percent sure

4 0
3 years ago
Ggj helpppppppp pls?​
GrogVix [38]
7.5g of butter
So for 8 pancakes 5g of butter is needed.
So to make one pancake we have to divide 5 by.
5/8 = 0.625
And then you times 0.625 by 12 to find out how much butter is needed for 12 pancakes

So the answer is
7.5g of butter
7 0
2 years ago
Read 2 more answers
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