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
BabaBlast [244]
3 years ago
6

Need Some help, I will mark brainliest :))​

Mathematics
1 answer:
Firlakuza [10]3 years ago
3 0

Answer:

The first one

Step-by-step explanation:

the first one is biased because it is not random but rather people who are using the library. They will obviously be biased towards the library

You might be interested in
Solve the following: - 3 raised to 1 by 5 the whole raised to 4 (3^1/5)^4
Diano4ka-milaya [45]

Answer:

8.30256

Step-by-step explanation:

Step 1: Write out expression

((-3)^{\frac{1}{5} })^{4(3^{\frac{1}{5} })^4

Step 2: Use BPEMDAS to evaluate

(-1.24573)^{4(3^{\frac{1}{5} })^4

(-1.24573)^{4(1.24573)^4

(-1.24573)^{4(2.40822)

(-1.24573)^{9.6329}

= 8.30256

And we have our answer!

8 0
3 years ago
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT. Find m2C in the quadrilateral.
saul85 [17]

Answer:

m∠C = 107°

Step-by-step explanation:

there are 4 sides so we first need to find the total interior angle:

  • ( 4 - 2 ) * 180 = 360°

m∠C = 360° - 90° - 90° - 73°

         = 107°

8 0
2 years ago
The lengths of one-year-old baby girls can be described using a normal distribution with a mean of 29 inches and a standard devi
crimeas [40]

The '68-95-99.7' rule says

-About 68% of values fall within one standard deviation of the mean.

-About 95% of the values fall within two standard deviations from the mean.

-Almost all of the values — about 99.7% — fall within three standard deviations from the mean.

Here 31.4=29+2*1.2 26.6=29-2*1.2

Therefore, the probability

P(26.6

The required probability

P(L

6 0
3 years ago
Test scores are normally distributed with a mean of 68 and a standard deviation of 12. Find the z – score for a grade of 74. Rou
Tasya [4]

Answer:

gang nem

Step-by-step explanation:

6 0
3 years ago
Complete the square f(x) = x^2 + 4x - 8 <br><br><br> PLZ help me ;c
Semenov [28]
Ok, first group x terms
f(x)=(x²+4x)-8
factor out quadratic coefient (no need but that's the step)
f(x)=1(x²+4x)-8
take 1/2 of the linear coefient and square it
4/2=2, (2)²=4
add positive and negative of it insides the parenthasees
f(x)=1(x²+4x+4-4)-8
factor perfect square
f(x)=1((x+2)²-4)-8
distribute
f(x)=1(x+2)²-4-8
f(x)=1(x+2)²-12
and, now if we wanted to find the x intercepts where f(x)=0 then
0=1(x+2)²-12
12=(x+2)²
+/-2√3=x+2
-2+/-2√3=x

x=-2+2√3 or -2-2√3
that is where the x intercept are

and completed square form is
f(x)=(x+2)²-12
6 0
3 years ago
Other questions:
  • Work out the values of a to e please
    11·1 answer
  • Help.. i suck at math
    9·1 answer
  • How to solve the different ways to find answer to 12 - 3?
    6·1 answer
  • In the following diagram CDFG ~ HJLK. use this information to find the value x.
    12·2 answers
  • Nan rode the roller coaster 8 times, which was twice as many times as she rode the F erris wheel
    15·1 answer
  • Solve: x − 2/3 = 6 1/3
    5·1 answer
  • 23. Cynthia used some of the ordered pairs from the set below to make a new set.
    7·1 answer
  • Round each number to the nearest tenth.
    10·2 answers
  • Solve for n.<br> 11(n-1)+35=3n
    14·1 answer
  • Use rounding to estimate the product of 5, 555 and 4, 444. Round both numbers to the nearest thousand to find your answer.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!