MATHEMATICS HIGH SCHOOL

6+3{[4-2(4-7)]}=
I need answer this whit steps.

pls.

Answers

Answer 1
Answer:

Step-by-step explanation:

6+3((4-2(4-7))

1. 6+3((2(4-7))

2. 6+3((2(*-3)

3. 6+3(-6)

4. 6+(3*-6)

5. 6+-18

6. -12

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The population of a city is modeled by the equation P(t) = 256,114e0.25t where t is measured in years. If the city continues to grow at this rate, how many years will it take for the population to reach one million?
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A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. Two marbles are drawn at random, one at a time. What is the probability of selecting a green marble and then, without replacing it, a red marble? A. 9/38 B. 9/190 C. 27/190 D. 3/38

Answers

Your answer would be C. 27/190.

This is because the probability of choosing green as the first marble would be 9/20, as there are 20 marbles in total and 9 of those are green.

The probability of choosing a red marble as the second marble would be 6/19, as no red marbles would have been lost if green was picked first, but there would be one less marble in total.

The 'and' rule for probability, the one that is used to determine the probability of P(A) and P(B), is to multiply, so we need to do 9/20 × 6/19 = 54/380 = 27/190.

I hope this helps!

Help me!!! please :( 4 a) b) c) d)

Answers

A. hexagonal prism

B. lateral area is the not hex sides
6 sides, 4 by 10
6*4*10=240 cm^2

C. area of a hexagon is ((3s^2)√3)/2 where s is side legnth
A=((3(6)^2)√3)/2
A=((3(36))√3)/2
A=(108√3)/2
A=54√3
2 bases so times 2
A=108√3 cm^2

D. total is LA+thing calclated in previous step
240+108√3 cm^2

A population of bacteria doubles every 15 hours. Initially, the population of bacteria is 40. What is the population of the bacteria after 40 hours? Enter your answer, rounded to the nearest whole number, in the box.

Answers

A number of bacteria after 30 hours is 480 bacteria.


The answer is 480 because originally the amount was 80. After 12 hours it doubled to 160. Then after 24 hours have passed, the amount doubled again. So now the amount is 320 bacteria. Then 6 hours passed (half of 12 hours) so then you add half of that amount (160) to 320. 320 plus 160 is 480. So the answer is 48

How many solutions does the equation 6s – 3s – 9 = –2 + 3 have? Only one
None
Two
Infinitely many

Answers

The answer to this question is Infinitely many
only one the answer is A

Which of the following is the function representing the graph below? graph begins in the third quadrant near the line y equals negative 3 and increases slowly while crossing the ordered pair 0, negative 2. When the graph enters the first quadrant, it begins to increase quickly throughout the graph.f(x) = 4x
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f(x) = 4(x + 3)

Answers

Answer:

  f(x) = 4^x -3

Step-by-step explanation:

All of the listed functions are linear functions with a constant slope of 4. None of them goes through the point (0, -2).

__

So, we assume that there is a missing exponentiation operator, and that these are supposed to be exponential functions. If the horizontal asymptote is -3, then there is only one answer choice that makes any sense:

  f(x) = 4^x -3

_____

The minimum value of 4^z for any z will be near zero. In order to make it be near -3, 3 must be subtracted from the exponential term.

Tahmar knows the formula for simple interest is I = Prt, where I represents the simple interest on an amount of money, P, for t years at r rate. She transforms the equation to isolate P : P = . Using this formula, what is the amount of money, P, that will generate $20 at a 5% interest rate over 5 years?

Answers

 $80

Working
Making p the subject gives:
P=(I)/(rT)
Substituting for values of I, r and t
p= (20)/(0.05*5)
p=80 dollars

Answer: 80

Step-by-step explanation: The given formula is: P = I/rt. So, we'll plug in $20, 5%, and 5 years like this: P = 20/5%(5) (or for the 5%, you can put .05), you will get: 80. You can get that answer on your calculator as well.

Hope this helped :)
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