I'm not that good at math , can anyone help me with this ?

Mathematics

2 answers:

Nata [24]3 years ago

5 0

Here are the rules of indices that can help u wid such questions

- When two numbers with the same base are being multiplied you add the powers
Eg) y^4 * y^11 = y^15

- When two numbers with the same base are being divided you subtract the power
Eg) w^10/w^5 = w^ 2

-When a number has 2 powers multiply them
Eg) (n^8)^7 = n^ 56

- Any number with power 1 = 0
Eg) 2^1 = 0

ycow [4]3 years ago

5 0

Step-by-step explanation:

please give me brainlest

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2 more than 5 times a number is greater than or equal to 3

yanalaym [24]

Answer:

x >= 1/5

Step-by-step explanation:

2 + 5x >= 3

5x >= 1

x >= 1/5

8 0

3 years ago

Question 18 i will maek the brainliest:)

maksim [4K]

Answer:

Median: 14.6, Q1: 6.1, Q3: 27.1, IR: 21, outliers: none

Step-by-step explanation:

Step 1: order the data from the least to the largest.

2.8, 3.9, 5.3, 6.1, 6.5, 7.1, 12.5, 14.6, 16.4, 16.4, 20.8, 27.1, 28.1, 30.9, 53.5

Step 2: find the median.

The median is the middle value, which is the 8th value in the data set.

2.8, 3.9, 5.3, 6.1, 6.5, 7.1, 12.5, [14.6,] 16.4, 16.4, 20.8, 27.1, 28.1, 30.9, 53.5

Median = 14.6

Step 2: Find Q1,

Q1 is the middle value of the lower part of the data set that is divided by the median to your left.

2.8, 3.9, 5.3, (6.1), 6.5, 7.1, 12.5, [14.6], 16.4, 16.4, 20.8, 27.1, 28.1, 30.9, 53.5

Q1 = 6.1

Step 3: find Q3.

Q3 is the middle value of the upper part of the given data set.

2.8, 3.9, 5.3, 6.1, 6.5, 7.1, 12.5, [14.6], 16.4, 16.4, 20.8, (27.1), 28.1, 30.9, 53.5

Q3 = 27.1

Step 4: find interquartile range (IR)

IR = Q3 - Q1 = $27.1 - 6.1 = 21$

Step 5: check if there is any outlier.

Formula for checking for outlier = $Q1 - 1.5*IR$

Then compare the result you get with the given values in the data set. Any value in the data set that is less than the result we get is considered an outlier.

Thus,

$Q1 - 1.5*IR$

$6.1 - 1.5*21 = -25.4$