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3 years ago

What are the coordinates of a point called

Mathematics

1 answer:

kozerog [31]3 years ago

8 0

Step-by-step explanation:

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Write down the answers to a,b,c,d

aniked [119]

Answer:

(A) 1

(B) -2

(D) -0.5

Step-by-step explanation:

We can treat each thermometer like a vertical number line and read the values on each.

A is right on 1.

B is right on -2.

C is in the middle of 3 and 4, so 3.5

D is in the middle of 0 and -1, so -0.5

Hope this helped!

3 0

3 years ago

There are 10 marbles in a bag. 1/5 are red and the others are blue. What is the ratio to blue marbles.

Irina-Kira [14]

Answer:

Ratio = 1 : 4

Step-by-step explanation:

Total marbles = 10

Given 1/5 is red, that is 1/5 of the total marbles are red

$\frac{1}{5} \ of \ 10 = \frac{1}{5} \times 10 = 2$

Therefore , 10 - 2 = 8 marbles are blue.

Ratio of red marbles to blue marbles

$\frac{2}{8} = \frac{1}{4} = 1 : 4$

4 0

3 years ago

The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The

zavuch27 [327]

The standard deviation of the frequency distribution is 5.54

<h3>How to determine standard deviation?</h3>

The table of values is given as:

x f(x)

0-3 13

4-7 13

8-11 10

12-15 11

16-19 0

20-23 3

Rewrite the table by calculating the class midpoints:

x f(x)

1.5 13

5.5 13

9.5 10

13.5 11

17.5 0

21.5 3

Start by calculating the mean using:

$\bar x = \frac{\sum fx}{\sum f}$

This gives

$\bar x = \frac{1.5 * 13 + 5.5 * 13 + 9.5 * 10 + 13.5 * 11 + 17.5 * 0 + 21.5 * 3}{13 + 13 + 10 + 11 + 0 +3}$

Evaluate

$\bar x = 7.98$

The standard deviation is then calculated as:

$\sigma = \sqrt{\frac{\sum f(x - \bar x)^2}{\sum f }}$

So, we have:

$\sigma= \sqrt{\frac{13 * (1.5 - 7.98)^2 + 13 * (5.5 - 7.98)^2 + (9.5 - 7.98)^2 * 10 + (13.5 - 7.98)^2 * 11 + (17.5 - 7.98)^2 * 0 + (21.5 - 7.98)^2 * 3}{13 + 13 + 10 + 11 + 0 +3}}$

Evaluate

$\sigma= \sqrt{30.6496}$

Solve

$\sigma= 5.54$

Hence, the standard deviation is 5.54

Read more about standard deviation at:

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7 0

2 years ago

What is the slope of the line through -4,2 and 3,-3

Anvisha [2.4K]

Answer:

(-3-2)/(3+4)= -5/7= m

3 0

3 years ago

36 creates of apples. each creat has 25 kgs of apples. they sell 486,235 games of apples. how many grams are left?

valentinak56 [21]

The grams of apples left is 413765 grams

<h3>How to determine the value</h3>

From the information given, we have that:

There are 36 crates of apples
Each contains 25 kilograms of apples
486,235 grams of apples were sold

If we have 36 crates, let's determine the the total grams of apples

1 crate = 25 kilograms = 25000 grams

36 crates = x

x = 25000 × 36

x = 900000 grams

The total grams of apple is 900000 grams

The grams left = Total - sold = 900000 - 486,235 = 413765 grams

Thus, the grams of apples left is 413765 grams

Learn more about word problems here:

brainly.com/question/1781657

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8 0

2 years ago