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Effectus [21]
2 years ago
6

Calculate: 31.13× 4.5​

Mathematics
2 answers:
Dmitriy789 [7]2 years ago
5 0

Answer:

140.085

Step-by-step explanation:

Kitty [74]2 years ago
4 0

Answer:

140.08

Step-by-step explanation:

Hope it helped!

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How many solutions does the equation have?
Studentka2010 [4]
The answer is c no solution
6 0
3 years ago
If y varies inversely as x and y=7 when x=−4, find y when x=2.
olga2289 [7]

Answer:

Explanation:

The statement is expressed as

y

∝

1

x

inverse means

1

variable

To convert to an equation introduce k, the constant of variation.

y

=

k

×

1

x

⇒

y

=

k

x

To find k use the given condition that y = 8 when x = 4

8

=

k

4

⇒

k

=

4

×

8

=

32

⇒

equation is

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

∣

∣

∣

2

2

y

=

32

x

2

2

∣

∣

∣

−−−−−−−−−−−−

x

=

16

→

y

=

32

16

⇒

y

=

2

when

x

=

16

5 0
3 years ago
What is the probability of an integer from 1 to 60,000 not having the digit 6?
Vanyuwa [196]
Solving equations simple
4n + 3 =11
4 0
3 years ago
Two trains are 480 miles apart. They start at the same time, and travel towards one another. The difference between the speeds o
Genrish500 [490]

Answer:

Did you just start today? It looks like you're new here. I'm also new here.

Step-by-step explanation:

I don't really know what to do either.

From what I've done so far, I don't understand it.

Sorry.

5 0
3 years ago
Differentiate f and find the domain of f. (enter the domain in interval notation.)f(x) = ln(x2 − 12x)derivative f '(x) = 2x−12x2
guajiro [1.7K]
F(x) = ln(x² - 12x)
The derivative is
f'(x)= \frac{2x-12}{x^{2}-12x}

f(x) is undefined when x² - 12x = x(x - 12) = 0
That is, when x = 0 or x = 12.
Therefore the domain is (-∞, 0)∪(0,12)∪(12, ∞)

Answer:
The derivative is
f'(x) =  \frac{2x-12}{x^{2}-12x}
The domain is
(-∞, 0)∪(0, 12)∪(12,∞)



3 0
3 years ago
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