1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irakobra [83]
3 years ago
6

How many, and what type of, solutions does 4x² + 12x + 9 = 0 have?

Mathematics
2 answers:
Gemiola [76]3 years ago
7 0
1 rational solution

4x² + 12x + 9 = 0
(2x+3)²=0
2x + 3 =0
2x +3 -3 = 0-3
2x = -3
2x/x = -3/2
x = -3/2
damaskus [11]3 years ago
3 0

The answer is 1 rational solution. :) Took the test and got it correct.

You might be interested in
PLEASE HELP!!! WILL MARK BRAINLIEST!!!!!
just olya [345]

The piecewise defined function is

f(t) = 800 * 1.5^t for 0 - 2

f(t) = 2700 * 1.05^t-3 for 3 to 9

<h3>How to determine the piecewise functions?</h3>

On the domain of t = 0 to 2, we have:

f(0) = 800

f(1) = 1200

f(2) = 1800

The above function is a piecewise function with the following definition

f(0) = 800 --- initial value

r = 1200/800 = 1.5 --- rate

The function is then represented as:

f(t) = f(0) * r^t

This gives

f(t) = 800 * 1.5^t

On the domain of t = 3 to 9, we have:

f(3) = 2700

f(4) = 2835

The above function is a piecewise function with the following definition

f(3) = 800 --- initial value

r = 2835/2700 = 1.05 --- rate

The function is then represented as:

f(t) = f(3) * r^t-3

This gives

f(t) = 2700 * 1.05^t-3

Hence, the piecewise defined function is

f(t) = 800 * 1.5^t for 0 - 2

f(t) = 2700 * 1.05^t-3 for 3 to 9

Read more about piecewise defined function at

brainly.com/question/26145479

#SPJ1

8 0
2 years ago
One number exceeds another by 18 and their sum is 36.
AnnZ [28]

x - first number

x + 18 - second number

x + (x + 18) = 36

x + x + 18 = 36

2x + 18 = 36        | - 18

2x = 18           | : 2

x = 9

First number: x = 9

Second number: x + 18 = 9 + 18 = 27

Those numbers are 9 and 27.

3 0
3 years ago
100 points and brainiest if correct:
Sophie [7]

Answer: Add 5 to both sides

What is the first step needed to solve 4 over 7 the whole multiplied by x minus 5 equal negative 13?

Answer- Add 5 to both sides

(4/7)x - 5 = -13

• As mentioned above, first step would be,

adding 5 to both sides

=> (4/7)x - 5 + 5 = -13 + 5

=> (4/7)x = -8

• Now, transporting 7 from L.H.S. to R.H.S

=> 4x = -8 × 7

=> 4x = -56

• Now in the same way, transporting 4 from L.H.S. to R.H.S

=> x = (-56/4)

=> x = -14

• And in this way, or taking<u> (Add 5 to both sides)</u> as our first step, we find that the value of x is -14.

<u>∴ </u><u> </u><u>x = -14</u>

Hope it helps.

7 0
3 years ago
Please I need help!!!<br> F 25<br> G20<br> H10<br> J28
iris [78.8K]

Answer: J) 28

Step-by-step explanation: Triangle interior angles equal 180°

5 0
3 years ago
Rachel jogged along a trail that was 1/4 (fraction) of a mile long. She jogged along the trail 8 times. How many miles did Rache
OverLord2011 [107]
1/4+1/4+1/4+1/4+1/4+1/4+<span>1/4+1/4 = 8 Miles

1/4+1/4 = 1/2 Mile

1/2+1/2 = 1 Mile

1+1 = 2 Miles</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • G 32​% of adults say cashews are their favorite kind of nut. you randomly select 12 adults and ask each to name his or her favor
    8·1 answer
  • Find the sum of the first 150 terms of the arithmetic series: 4, 5, 6, 7, 8, … 7,345 11,775 13,322 15,654
    5·1 answer
  • Dan said that if a quadratic equation does not have any real solutions , it is not a function . Critique his reasoning
    15·1 answer
  • At what x-values do the graphs of the functions y=cos 2x and y = cos^2 x-1 intersect over the interval 0 ≤ x ≤ pi. There must be
    15·2 answers
  • Help will fine brainliest!!!
    13·2 answers
  • Given a mean of 61.2 and a standard deviation of 21.4, within how many standard deviations of the mean do the values 45,78,62,90
    12·2 answers
  • Jason is the captain of his basketball team the list below shows how many points Jason scored in each of the first 10 games 18,2
    7·1 answer
  • Multiplying a number by 2 two and then dividing by 3 is the same as multiplying by what number?
    15·1 answer
  • A new car has a sticker price $20,880, while the invoice price paid on it was
    8·1 answer
  • (2i)/(3-5i) HELP ASAP --- algebra 2 question
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!