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Dmitry [639]
3 years ago
12

Hi who can help me do this 2quetion,I will mark brainlest ​

Mathematics
2 answers:
sweet [91]3 years ago
6 0

Answer:

4.3324384599

or you can just round it to 4.332

hodyreva [135]3 years ago
5 0

Step-by-step explanation:

8.  log_{10}(2.15)   = 0.332 \: then \:   log_{10}(21500)   = ..... \\  log(21500)  =  log(2.15 \times 10000)  \\   =  log(2.15)  +  log(10000)  \\   = log_{10}(2.15)  +  log_{10}( {10}^{4} )  \\  = 0.332 + 4 log_{10}(10)  \\  = 0.332 + 4(1) \\  log_{10}(21500)  = 4.332

9. log(2)=a, log(3)=b, then log(36)=______

log(36) = log(6*6) = log(6) + log(6)

log(36)= log(6) + log(6)

log(36) = log(3*2) + log(3*2)

log(36) = (log(3) + log(2)) + (log(3) + log(2))

log(36) = (a + b) + (b + a)

log(36) = a + b + b + a

log(36) = 2a + 2b

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One of the formulas for the circumference of a circle is C = d . Solve for pi in terms of C and d.
Pepsi [2]
When you rearrange  the problem, it can look like...pi=C/d, solve and you have your answer
5 0
3 years ago
What steps does Emory need to solve the equation x+7=3x+(-5)
swat32

Answer:

First you need to find what x is equal to.

Step-by-step explanation:

 Since 3x-5 is what you need to find divide 3 by 3x to get x alone and do the same for -5/ 3 which -1.6666667, and you can estimate it to be -1.67 so x is about -1.67.

4 0
3 years ago
Start with the basic function f(x)=2x. If you have an initial value of 1, then you end up with the following iterations. f(1)=2*
denpristay [2]
<span>f(x)=2x

f(1)=2*1=2

f^2(1)=2*2*1=4

f^3(1) =2*2*2*1=8

1. If you continue this pattern, what do you expect would happen to the numbers as the number of iterations grows?

I expect the numbers continue growing multiplying each time by 2.

Check your result by conducting at least 10 iterations.

f^4(1) = f^3(1) * f(1) = 8*2 = 16

f^(5)(1) = f^4(1) * f(1) = 16 * 2 = 32

f^6 (1) = f^5 (1) * f(1) = 32 * 2 = 64

f^7 (1) = f^6 (1) * f(1) = 64 * 2 = 128

f^8 (1) = f^7 (1) * f(1) = 128 * 2 = 256

f^9 (1) = f^8 (1) * f(1) = 256 * 2 = 512

f^10 (1) = f^9 (1) * f(1) = 512 * 2 = 1024

2. Repeat the process with an initial value of −1. What happens as the number of iterations grows?

f(-1) = 2(-1) = - 2

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f^4 (-1) = f^3 (-1) * f(-1) = - 8 * (-2) = 16

f^5 (-1) = f^4 (-1) * f(-1) = 16 * (-2) = - 32

As you see the magnitude of the number increases, being multiplied by 2 each time, and the sign is aleternated, negative positive negative positive ...
</span>
4 0
4 years ago
A car travels 0.75 every minute. Explain how could you use proportional reasoning to find how far the car travels in one hour
CaHeK987 [17]
If you know that the car travels 0.75 per minute and that there are 60 minutes are in a hour, you could multiply 0.75 with 60, which gives you an answer of 45.
7 0
3 years ago
1. Michael and 6 friends went to the movies. There, they each bought movie tickets and a bag of popcorn to share among them all.
Aleonysh [2.5K]

Answer:

The variable is t

t represent the cost of movie tickets

Step-by-step explanation:

Given:

Total cost = 7t + 4.50

The variable is t

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t represent the cost of movie tickets

For instance,

If the cost of a movie tickets is $2

Then,

t = 2

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= 7(2) + 4.50

= 14 + 4.50

= 18.50

Total cost = $18.50

5 0
3 years ago
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