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ElenaW [278]
2 years ago
7

Would these be linear combinations or quadratic equations

Mathematics
1 answer:
Komok [63]2 years ago
5 0

Answer:

actually it is a simultaneous equation from linear combinations

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Please help i dont understand at all :(
andrey2020 [161]
180 - 46 - 24 = 110

d+ 80 = 110
d = 30

answer
d = 30
3 0
3 years ago
The formula for the volume of w sphere is v=4\3 r3 what is the formula solved for r?
Lyrx [107]
V of w sphere = \frac{4}{3}\pir³
Multiply by 3 on either sides to get rid of the fraction.
V * 3 =  \frac{4}{3} *3 \pi r^3
3V = 4\pir³
Now divide either sides by 4\pi to isolate r³
\frac{3V}{4 \pi } =  \frac{4 \pi }{4 \pi }r³
4\pi and 4\pi cancels out
\frac{3V}{4 \pi } = r³
Take the cube root to isolate r.
\sqrt[3]{ \frac{3V}{4 \pi } } =  \sqrt[3]{r^3}
the cube root cancels the cube

\sqrt[3]{ \frac{3V}{4 \pi } } = r
6 0
3 years ago
What is 42 x 2 give the working please help
Lynna [10]

Answer:

84.

Step-by-step explanation:

42

x 2

84

2 x 2 = 4

4 x 2 = 8

= 84

4 0
3 years ago
Read 2 more answers
-10k = 20 <br> Please help I really dont understand.
algol [13]

Answer: Divide each term by − 10  and simplify.

k = −2

6 0
3 years ago
If a large cylinder has a volume of 28260 cubic cm, how many cylinders can be filled out of the large cylinder if the small cyli
inysia [295]
Hi,

To find the number of small cylinders that fit inside the big cylinder. You need to divide volume of small cylinder with the volume of big cylinder. We do this by using formula to calculate volume of cylinder:


v = \pi \times  {r}^{2}  \times h


To find radius just divide diameter with 2.

v = \pi \times   {2}^{2}  \times 6 \\ v = \pi \times 4 \times 6 \\ v = \pi \times 24 \\ v = 3.14 \times 24 \\ v = 75.4 {cm}^{3}


Now just division:

28260 \div 75.4 = 374.8

Answer: You could fit 374.8 smaller cylinders inside a big cylinder.

Hope this helps.
r3t40
7 0
3 years ago
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