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2 years ago

Your teacher asks all 30 students in your class their favorite color and tallies the results. Which graph would best

Mathematics

1 answer:

RSB [31]2 years ago

7 0

Ans it depends but i think it is a and b

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This is algebra just letting u know and plzz help

worty [1.4K]

Algebra

The graph is C, or the graph down left.

This is because the other graphs lack the same vertex.

7 0

2 years ago

If 7 litres of petrol cost $14.70 ,calculate the cost of 15 litres of petrol<br><br> Kindly answer

erastovalidia [21]

Answer:

The cost of 15 liters is $31.50

Step-by-step explanation:

1. Find the price for 1 liter of petrol.

Divide the cost by the number of liters:

$14.70 / 7 = $2.10 per liter.

2. Multiply the price for 1 liter by the new number of liters, 15.

$2.10 per liter x 15 liters = $31.50

3 0

2 years ago

I only need help with the second part of this question. please can you help?

matrenka [14]

13,822 to one significant figure is 10,000

623 to one significant figure is 600

14 to one significant figure is 10

10,000 times 600 = 6,000,000

6,000,000/10 = 600,000

4 0

2 years ago

Use prime factorization to find the GCF of 10, 45

Taya2010 [7]

Answer:

Step-by-step explanation:

$10=2\cdot\boxed{5}\\\\45=3\cdot3\cdot\boxed{5}\\\\GCF(10,\ 45)=\boxed{5}$

7 0

2 years ago

Acellus Find the expected value of a random variable x having the following probability distribution. 0 1 2 3 4 5 Probability 1/

barxatty [35]

Answer:

"2.25" is the right answer.

Step-by-step explanation:

According to the question,

The expected value will be:

= $\sum_{i=1}^{n} x_i P(X = x_i)$

= $0\times \frac{1}{8}+1\times \frac{1}{4}+2\times \frac{3}{16}+3\times \frac{1}{4}+4\times \frac{1}{6}+5\times \frac{1}{8}$

= $0+\frac{1}{4}+\frac{3}{8} +\frac{3}{4}+\frac{1}{4} +\frac{5}{8}$

= $\frac{1}{4} +\frac{8}{8} +\frac{4}{4}$

= $\frac{1}{4} +1+1$

= $0.25+2$

= $2.25$

Thus the above is the right approach.

8 0

2 years ago