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
Arada [10]
3 years ago
13

9x^2-25 Yea, it confused me too I need this explained to me pls and thank you.​

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
4 0

Answer:

What this is is factoring and these are both perfect squares.

(3x-5)(3x+5) is the answer.

Step-by-step explanation:

First we take the 9x^2-25 and split in in two statements

(3x-5) (3x+5)

then foil to check it

first side: 3x*3x=9x^2

outside: 3x*5=15x

inside: -5*3x=-15x

last: -5*5=-25

then put it together

9x^2+15x-15x-25

the 15x and -15x cancel each other out so you're left with 9x^2-25

You might be interested in
Which line is parallel to y=-4x+3?
Oxana [17]

Answer:

Step-by-step explanation:

x = 0

y = -4 (0) + 3

y = 3

(0,3) is a solution.

x-axis is parallel

6 0
3 years ago
Read 2 more answers
I need some help with this.
Alenkasestr [34]

Answer:

b is 16 d is 13

Step-by-step explanation:

ok is a baby girl that can I be happy

7 0
2 years ago
How would you find a number between 3.2 and 3.26
Airida [17]

3.25 is the answer so copy down the answer its right


3 0
3 years ago
Read 2 more answers
Construct a sample (with at least two different values in the set) of 4 measurements whose mean, median, and mode are equal. If
KiRa [710]

Answer:

The first set 4 , 6 , 6 , 8

The second set 2 , 6 , 6 , 10

Step-by-step explanation:

Mean is the average of the values in a set. This can be found by summing all the numbers and dividing by the total number. The median is the middle number when the values are listed in order of increasing size. The mode is the number(s) that appear the most often in the set.

The first set 4 , 6 , 6 , 8

mean = (4 + 6 + 6 + 8 )/4 = 6

median = (6+6)/2 = 6

Mode = 6

The second set 2 , 6 , 6 , 10

mean = (2 + 6 + 6 + 10)/4 = 6

median = (6+6)/2 = 6

Mode = 6

3 0
3 years ago
The area of a compact disc is 78.53 square centimeters. What is the radius of the disc? Use pi = 3.14
Tom [10]

Answer:

r = 5 cm

Step-by-step explanation:

A = πr²

78.53 = (3.14)r²

divide by 3.14

25 = r²

r = ±5

r = 5

5 0
3 years ago
Other questions:
  • Determine if the equation is linear.<br>(1.) 2x + y=4​
    5·1 answer
  • PPPLLLLEEEAASSSEEEE HHHEEEELLLLPPPPP!!!!!!!
    9·1 answer
  • The coordinates of the vertices of quadrilateral DEFG are D(−2, 5) , E(2, 4) , F(0, 0) , and G(−4, 1) .
    7·2 answers
  • Find the mean, standard deviation, and variance of Lucas's lunch expenditures. Round to the nearest thousandth.
    6·1 answer
  • What is the greatest common factor 18, 42 and 24,30 and 24,36
    14·2 answers
  • The larger number is 18 more than twice the smaller. If the sum of the two numbers is 93, find both numbers
    10·1 answer
  • 2. Which of the following is the equation of a circle with the radius of 1.5 and its center at (-3,2)?
    5·1 answer
  • Write 342 to 1 significant figure​
    14·1 answer
  • Which function is a horizontal compression of its parent function f(x)= x^2 by a factor of 4
    13·1 answer
  • Please I swear my math teacher is going to kill me​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!