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
fgiga [73]
3 years ago
12

Factor completely 169x2 _ 64

Mathematics
1 answer:
makvit [3.9K]3 years ago
6 0
A^2 - b^2 = (a - b)(a + b)
169x^2 - 64 = (13x - 8)(13x + 8)
You might be interested in
A right triangle has one leg with a length of 48 and a hypotenuse with a length of 80. What is the length of the other leg?
Fofino [41]
Pythagoras Theroem.
Leg₁²+leg₂²=hypotenuse²

Data:
Leg₁=48
hypotneuse=80

(48)²+ leg₂²=(80)²
2304+leg₂²=6400
leg₂²=6400-2304
leg₂²=4096
leg₂=√4096
leg₂=64

Answer: B.  64
8 0
3 years ago
Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was
Ivan

Answer: \pm0.1706

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of \alpha:0.05 : z_{\alpha/2}= 1.96

Sample mean : \overline{x}=2.5

Standard deviation : \sigma= 0.5

We assume that this is a normal distribution.

Margin of error : E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

i.e. E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706

Hence, the  margin of error is \pm0.1706

7 0
3 years ago
4/5=/20 math...........
Mumz [18]

Answer:

1.) 16/20

2.) 15/35

3.) 12/9

4.) 52/60

5.) 9 inches

6.) 24 centimeters

7.) 16 logs

8.) $15.40

9.) 10 miles

10.) 1.5 inches

I hope this is good enough:

7 0
3 years ago
Find the period of the graph
olya-2409 [2.1K]

Answer:

240 degrees

Step-by-step explanation:

Looking at the graph we can see that the first peak is at -30 degrees and the second peak is at 210 degrees.

210 - (-30) = 210 + 30 = 240

5 0
3 years ago
Please help, if you don’t know, don’t answer.
Novosadov [1.4K]

Answer:

The answer is 1.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • How does the digit in the ten thousands place compare to the digit in the thousands place
    6·1 answer
  • For a project, you cut paper into strips that are 2 1/2 inches long by 3/4 inches wide. what is the area of each strip of paper
    14·1 answer
  • , list the first five terms of each sequence, and identify them as arithmetic or geometric.
    8·1 answer
  • Indicate the equation of the given line in standard form. The line containing the longer diagonal of a quadrilateral whose verti
    6·1 answer
  • Which description of the vector shown is correct ?
    14·2 answers
  • The equation y-3=-2(x+5) is written in point-slope form. What is the y-intersept of the line?
    13·1 answer
  • F(x) = 2:3 - 2x + 6
    7·1 answer
  • Ann used 5 2/3 gallons of gas on Sunday and 1 1/4 gallons of gas on Monday. How many more gallons of gas did she use on Sunday?
    15·1 answer
  • A water tank initially contained 122 liters of water. It is then filled with more water, at
    15·1 answer
  • Please help me on this!!! I’d really appreciate it!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!