MATHEMATICS HIGH SCHOOL

Some one plz help!!! due in 10 min

Answers

Answer 1

Answer:

Step-by-step explanation:

since f'(x) = 2f(x) and f(3) has no term of x (so, there must be a constant that eliminates x for x = 3), we get

f(x) = x²/9 × c

c = m×e^n

f(1) = 1/9 × m×e^n = 5

=> m×e^n = 45

f(3) = 9/9 × m×e^n = 45

m = 45

n = 0

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Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.B.Sam solved a similar equation below. Is Sam's solution correct? Explain why or why not.
5x − 1 = 2(x + 4)
5x − 1 = 2x + 8
7x − 1 = 8
7x = 7
x = 1

Answers

Part 1: $4x + 7 = 3(2x - 5)$

$4x+7=6x-15$

$7=6x-15-4x$

$7=2x-15$

$7+15=2x$

$22=2x$

$22=2x / 2$

$x=11$

Part 2: Sam is not correct because he messed up the second step. He added 2x on both sides to get 7x, instead he should have subtracted.

What is the height of this cone?

Answers

Answer:

height is = 3/2 ft

Step-by-step explanation:

a cones volume can be represented by 1/3(h)(pi)(r^2)

we must go backwards to find this question out

if the diameter is 2/3 then the radius is 1/3

then you must square that

that is 1/3 * 1/3 which is 1/9

1/9(1/3)(pi)(h) is 1/18(pi)

we can remove pi from both sides and multiply the 1/9 and the 1/3

1/27(h) = 1/18

we must find the lcm or least common multiple to figure this out

the lcm is 54

1/27 is essentially 2/54 and 1/18 is 3/54

2/54(h) = 3/54

we can multiply each side by 54

2h = 3

divide 2 on both sides

h is 3/2

Which of the following pair of times has an elapsed time of 3 hours and 20 minutes between the times?3:20 to 6:00
8:40 to 12:00
6:30 to 9:20
5:50 to 8:10

Answers

8:40 to 12:00, 3 hours and 20 minutes has elapsed.

How much water should be added to 18ml of 10% alcohol solution to reduce to reduce the concentration to 9%

Answers

$10\%=(10)/(100)=0.1\n\n0.1\cdot18ml=1.8ml-clear\ alcohol\n\n9\%=(9)/(100)=0.09\n\nw-added\ water\ (ml)\n18ml+w-9\%\ alcohol\ solution\n\n0.09(18+w)=1.8\ \ \ \ /:0.09\n18+w=20\ \ \ /-18\nw=2\n\nAnswer:2ml.$

18 * 0.1 = 1.8 ml

0.09(x + 18) = 1.8
18 + x = 20
x = 20 - 18
x = 2

2 ml.

Complete the equation of the graphed linear function in point-slope form.y – (–2) = ___(x – ___)

Answers

$m = (y_(2) - y_(1))/(x_(2) - x_(1)) = (2 - (-2))/(2 - 1) = (2 + 2)/(1) = (4)/(1) = 4$

y - y₁ = m(x - x₁)
y - (-2) = 4(x - 1)
y + 2 = 4(x - 1)
y + 2 = 4(x) - 4(1)
y + 2 = 4x - 4
- 2 - 2
y = 4x - 6

2. Standard 6.NS.BHot dogs come in packages of 10. Hot dog buns come in packages of 8. Elliott would
like to buy the smallest number of hot dog buns and hot dogs so that he will have
exactly one hot dog per bun.
Part A
How many packages of buns and hot dogs must he buy? Show your work and explain
your thinking.

Answers

Answer:

4 packages of hot dogs and 5 packages of hot dog buns.

Step-by-step explanation:

Find the least common multiple of 10 and 8, which is 40.

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