All categories

3 years ago

Solve x2 – 4x – 9 = 29 for x.

2 answers:

8 0

Hi
we have 2x-4x-9=29
we add nine on both sides and get 2x-4x=38.
2x-4x=-2x, so we simplify the equation to -2x=38.
divide by -2 on both sides, x=-19
hope this helps

Bogdan [553]3 years ago

5 0

Is the x2 supposed to be x to the power of 2 (x^2) or just x2 which is like 2x?

You might be interested in

How many arrangements of 3 digits can be formed from the digits 0 through 9?

Arisa [49]

Answer:

i think is the c:720 is the answer

8 0

3 years ago

Suppose the population of a town is 2,700 and is growing 4% each year. A. Write an equation to model the population growth. B. P

miss Akunina [59]

Answer:

Third option i.e. A. $2700(1.04)^x$ and B. About 4,323 people

Step-by-step explanation:

We are given that,

Initial population of the town = 2,700

The rate of growth = 4% = 0.04

Part A: Since, the equation for the growth is given by,

Population growth = $P(1+r)^x$ , where P is the initial population, r is the rate of growth and x is the time period of growth.

We have, according to the question,

Population growth = $2700(1+0.04)^x$

i.e. Population growth = $2700(1.04)^x$

Thus, the equation for the population growth is $2700(1.04)^x$ .

Part B: Now, it is required to find the population after 12 years i.e. x= 12.

So, we have,

Population = $2700(1.04)^x$

i.e. Population = $2700(1.04)^{12}$

i.e. Population = $2700\times 1.601032$

i.e. Population = 4,323

Hence, the population after 12 years is 4,323 people.

Thus, the third option is correct.

5 0

3 years ago

Read 2 more answers

Help Eveaultaint the question

svet-max [94.6K]

10-x+y÷2
10-(5)+(2)÷2
10-5+2÷2
7÷2
3.5???
I'm pretty sure that's correct, I'm sorry if it's wrong though

5 0

3 years ago

A psychology professor wants to know whether verbal ability is related to memory quality in current first-year students at her s

alexgriva [62]

Answer:

The variable are

A and B

Step-by-step explanation:

Generally we can define a variable as a name of a placeholder representing a value now considering the option to be selected from we see that

The students' verbal SAT scores is a variable because it is a phrase or a place holder that represent a value (in the is case a numerical value) which the score its self

The second option The students' percentage of words that were correctly recognized on the original list is also a variable because it is a placeholder of a name (in this case a phrase ) that represented the actual value itself

The third option The 75 students is not a variable because it is not representing any value but itself is the value

The third option The 750 students is not a variable because it is not representing any value but itself is the value

8 0

3 years ago

HELP ME WITH THIS PLEASE!!! COORDINATES!

likoan [24]

(0, 4)
(-1, -3)
(2, -3)

For a 90 degrees clockwise rotation, the rule is (y, -x)

7 0

4 years ago