2 years ago

If the sum of a number and one is tripled, the result is four less than twice the number. Find the number.

Mathematics

1 answer:

vagabundo [1.1K]2 years ago

8 0

x+1*3+y-4=x

the answer

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The half-life of radioactive cobalt is 5.27 years. Suppose that a nuclear accident has left the level of cobalt radiation in a c

sweet [91]

Answer:

35 years

Step-by-step explanation:

The proportion p that remains after y years is ...

p = (1/2)^(y/5.27)

In order for 1/100 to remain (the level decays from 100 times to 1 times), we have ...

.01 = .5^(y/5.27)

log(0.01) = y/5.27·log(0.5) . . . take logs

y = 5.27·log(0.01)/log(0.5) ≈ 35.01 ≈ 35 . . . . years

5 0

3 years ago

How do i get this ?

ser-zykov [4K]

Sinx=1/2
sin30=1/2
therefore x=30 degree

7 0

3 years ago

Read 2 more answers

I need help on these please, also explain how you got the answer please ♡

SIZIF [17.4K]

27. N > -1
29. T < 2
31. K= -12
33. 30= 4m + 2
Answer: m = 7

7 0

2 years ago

Use 4 terms of the series to approximate :

liraira [26]

$from \: trapezium \: rule \\ n = 4 \\ h = \frac{(1 - ( - 5))}{4} = \frac{3}{2} \\ from \: the \: pic \: \\ approximate \: value \: is \: 5.409$

8 0

2 years ago

Identify the horizontal

jonny [76]

Answer:

y=0

Step-by-step explanation:

Hello!

To solve this problem and find the asymptote you must find the value of x, for which F (x) (or y) becomes infinite, for this we solve the equation for X

$y=\frac{3}{5X} \\X=\frac{3}{5y}$

As you can see if Y takes a value of zero, then X would tend to be an infinitely large value so we conclude the horizontal asymptote is y = 0, I also attached the graph!

8 0

2 years ago