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
shtirl [24]
3 years ago
9

2a2b3 and -4a2b3 are like terms. True False

Mathematics
1 answer:
stiv31 [10]3 years ago
7 0

Answer:

Step-by-step explanation:

You might be interested in
A random sample of 16 statistics examinations was taken. The average sample score was 76.2 with a sample variance of 144. The 99
dlinn [17]

99% confidence interval for the population average examination score is between a lower limit of 67.35 and an upper limit of 85.05. The correct option is C.

<h3>What is the margin of error in statistics?</h3>

The margin of error is a statistic that describes how much random sampling error there is in survey results. One should have less faith that a poll's findings would accurately reflect those of a population census the higher the margin of error.

The interval will be calculated as below:-

Confidence interval = mean +/- margin of error (E)

mean = 76.2

variance = 144

sd = sqrt(variance) = sqrt(144) = 12

n = 16

Degree of freedom (df) = n - 1 = 16- 1 = 15

Confidence level (C) = 99% = 0.99

Significance level = 1 - C = 1 - 0.99 = 0.01 = 1%

t-value corresponding to 15 df and 1% significance level is 2.95

The margin of error will be:-

E = t×sd/√n = 2.95 ×  12/√16 = 8.85

The interval will be:-

Lower limit = mean - E = 76.2 - 8.85 = 67.35

Upper limit = mean + E = 76.2 + 8.85 = 85.05

Therefore, the 99% confidence interval for the population average examination score is between a lower limit of 67.35 and an upper limit of 85.05. The correct option is C.

To know more about margin of error follow

brainly.com/question/24289590

#SPJ1

4 0
2 years ago
I need help with substitution and elimination.
Brrunno [24]
To sum it up? or what?
6 0
3 years ago
Determine the inverse of a function. please help!​
Brums [2.3K]
This is what i got!!
8 0
3 years ago
Please help ASAP :ppppp
Morgarella [4.7K]

Answer:

I think it's c

Step-by-step explanation:

6 0
3 years ago
You randomly draw a marble out of a bag containing 4 green marbles, 6 blue marbles, 8 yellow marbles, and 2 red marbles. Find th
shutvik [7]

Answer:

<h3>The probability is </h3><h3>\frac{3}{5}</h3>

Step-by-step explanation:

Green marbles = 4

Blue marbles = 6

Yellow marbles = 8

Red marbles = 2

4 + 6 + 8 + 2 = 20 \: marbles

The probability of drawing marble not yellow:

4 + 6 + 2 = 12 \\  \frac{12}{20}  =  \frac{3}{5}

Brainliest please.

5 0
2 years ago
Other questions:
  • The table below shows four systems of equations:
    5·1 answer
  • What is the circumstance of a circle using 3 for pi and the radius is 7
    5·1 answer
  • Carol has 88 cm of string and cuts it in the ratio 5 : 6. What is the total parts?​
    11·2 answers
  • The statement "The square of any rational number is rational" can be rewritten formally as "For all rational numbers x, x 2 is r
    7·1 answer
  • An important problem in industry is shipment damage. A windshield factory ships its product by truck and determines that it cann
    11·1 answer
  • I need help with this!
    8·1 answer
  • The price of a toy usually costing £50 is increases to £65<br> work out the percentage increase
    9·2 answers
  • Freee pointsssssssssss
    7·2 answers
  • Evaluate the expression
    6·1 answer
  • A machine stamps 330 parts in 11 minutes. Find the unit rate in parts per hour.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!