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2 years ago

Start with x^2 + 4x = 12 and complete the square, what is the equivalent equation?

1 answer:

3 0

The answer is A. You multiply each side by (b/2)^2. B is 4. 4 divided by 2 squared is 4. To make it the same equation squared, you factor it to (x+2)^2. You have to also add the (b/2)^2 to 12 so 12+4=16

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J.k. Rowling and R.L. Stone are both ready hunger games . J.k. Reads 35 pages every 2 hours and R.L. Reads 45 pages every 3 hour

san4es73 [151]

Answer:

The rate of change for each reader is :

For J K Rowling : 17 and a half pages per hour

For R L Stone : 15 pages per hour

Step-by-step explanation:

Here the reading rate of each reader is given as:

J.K. Reads 35 pages every 2 hours.

So, the number of pages read by J K in 2 hours = 35 pages

⇒ The number of pages read per hour = 35 / 2 = 17 . 5 pages

So, the pages read by J K Rowling in 1 hour is 17 and a half pages.

R L Stone reads 45 pages every 3 hours.

So, the number of pages read by R L in 3 hours = 45 pages

⇒ The number of pages read per hour = 45 / 3 = 15 pages

So, the pages read by R L Stone in 1 hour is 15 pages.

Hence, the rate of change for each reader is :

For J K Rowling : 17 and a half pages per hour

For R L Stone : 15 pages per hour

5 0

3 years ago

A state's license plates consist of four letters followed by three numerals, and 242 letter arrangements are not allowed. How ma

PolarNik [594]

Answer: There are 456975758 plates that the state can issue.

Step-by-step explanation:

Since we have given that

Number of letters = 4

Number of numerals = 3

And 242 letter arrangements are not allowed.

As we have 26 letters i.e A-Z

and numerals i.e, 0-9

So, the number of plates would be

$(26^4)\times 10^3=456976000$

So, the restricted letters deducting would be

$456976000-242=456975758$

Hence, there are 456975758 plates that the state can issue.

6 0

2 years ago

This equation x (x2 - 1) y"+ (1- x?) y' +9(2x - 2)y has a regular singular points at x =

KiRa [710]

Answer: the nots confused me y’ is that integral or what

Step-by-step explanation:

4 0

2 years ago

What fraction is greater? 2/3 or 3/5

ratelena [41]

The answer would be 1/2

6 0

3 years ago

Read 2 more answers

Please help asap will mark brainliest

quester [9]

Answer:

B: y= -2/7 x - 1/5

Step-by-step explanation:

Slope-Intercept Form equation: y=mx+b

m = slope

b = y-intercept

y = mx + b

y = -2/7 x + (-1/5)

7 0

2 years ago