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lord [1]
2 years ago
15

Norma practices violin for 50 minutes every day. how many minutes does Norma practice violin in 7 days ?

Mathematics
1 answer:
JulsSmile [24]2 years ago
3 0
350 minutes in 7 days
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2a² - 5 + 6a²=?<br> what's the answer?
mote1985 [20]
Combine like terms

2a² + 6a² = 8a²

8a² - 5
7 0
2 years ago
You would like to build a relative frequency distribution for this data set to easily compare it to another class of students.
Dafna1 [17]

The relative frequency for the third class, 60 - 69 is equal to 12%.

<h3>What is a class width?</h3>

In a frequency distribution table, a class width can be defined as the difference between the upper (maximum) and lower (minimum) boundaries of any class in a data set. This ultimately implies that, all classes must all have the same width in a frequency distribution table.

<h3>What is a frequency table?</h3>

A frequency table can be used to graphically represent the frequencies or relative frequencies that are associated with a categorical variable.

<h3>How to calculate the relative frequency for the third class, 60 - 69?</h3>

First of all, we would determine the total number of frequency as follows:

Total frequency = 12 + 11 + 6 + 10 + 11

Total frequency = 50.

Mathematically, relative frequency can be calculated by using this formula:

Relative frequency = class frequency/total frequency × 100

Relative frequency = 6/50 × 100

Relative frequency = 0.12 × 100

Relative frequency = 12%.

Read more on frequency table here: brainly.com/question/20744563

#SPJ1

Complete Question:

You would like to build a relative frequency distribution for this data set to easily compare it to another class of students.

What is the relative frequency for the third class, 60 - 69?

8 0
1 year ago
00:00
Nady [450]

Answer:

no,yes,no,yes

Step-by-step explanation:

if you wanna check if a relation is function or not , you can simply check if you have more than one x with same y.for example : for the first relation, you have (2,5) and (2,7) . so this isnt a function

8 0
2 years ago
Please help me please help with this questions ASAP
neonofarm [45]

Answer:

I believe the answer is 3. Im not sure so sorry if you get it wrong

7 0
3 years ago
Whats the answer to 6a+12=2(3a-8)
erastova [34]
6a+12=2(3a-8)
6a+12=6a-16
-12. -12
6a=6a-4
-6a -6a
0=-4
no solution because the equation is false.
4 0
2 years ago
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