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3 years ago

Find the area of the shape please help me with this problem:)

Mathematics

2 answers:

kifflom [539]3 years ago

6 0

Answer:

Step-by-step explanation:

If u do 8×2=16 and if I put them 2 triangles together then it would be 2 squares!

Alex73 [517]3 years ago

5 0

Answer:

the area is 8

Step-by-step explanation:

area of a square= base×height

area of triangle base×height/2

2×2=4

2×2=4/2=2

2+2=4

4+4=8

Hope this helps.

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Daily high temperatures in St. Louis for the last week were as follows: 95, 92, 93, 92, 95, 90, 90 (yesterday). a) The

hichkok12 [17]

Answer:

a) T = 91.7 degrees

b) T = 90 degrees

c) MAD = 1.9

d) MSE = 5.05

Step-by-step explanation:

Given:

- Daily high temperatures in St. Louis for the last week were as follows:

95, 92, 93, 92, 95, 90, 90

Find:

a) Forecast the high temperature today, using a 3-day moving average.

b) Forecast the high temperature today, using a 2-day moving average.

c) Calculate the mean absolute deviation based on a 2-day moving average, covering all days in which you can have a forecast and an actual temperature.

d) The mean squared error for the 2-day moving average

Solution:

- The set of 3 day moving average is as follows:

4. (95 + 92 + 93) ÷ 3 = 93.33⁰C

5. (92 + 93 + 92) ÷ 3 = 92.33⁰C

6. (93 + 92 + 95) ÷ 3 = 93.33⁰C

7. (92 + 95 + 90) ÷ 3 = 92.33⁰C

8. (95 + 90 + 90) ÷ 3 = 91.667⁰C

- Now use these points on excel sheet to forecast the temperature for today. The line of best fit is given:

T = 91.7 degrees

- The set of 2 day moving average is as follows:

3. (95 + 92) ÷ 2 = 93.5⁰C

4. (95 + 93) ÷ 2 = 92.5⁰C

5. (93 + 92) ÷ 2 = 92.5⁰C

6. (92 + 95) ÷ 2 = 93.5⁰C

7. (95 + 90) ÷ 2 = 92.5⁰C

8. (90 + 90) ÷ 2 = 90⁰C

- Now use these points on excel sheet to forecast the temperature for today. The line of best fit is given:

T = 90 degrees

Error Error^2

3. 93.5⁰C 0.5 0.25

4. 92.5⁰C 0.5 0.25

5. 92.5⁰C 2.5 6.25

6. 93.5⁰C 3.5 12.25

7. 92.5⁰C 2.5 6.25

8. 90⁰C

- The mean absolute deviation as follows:

MAD = Sum of all errors / 5

MAD = (0.5+0.5+2.5+3.5+2.5) / 5

MAD = 1.9

- The mean squared error deviation as follows:

MSE = Sum of all error^2 / 5

MSE = (0.25+0.25+6.25+12.25+6.25) / 5

MSE = 5.05

4 0

3 years ago

Samantha saved $13 by buying a used DVD. She paid $5 less than half the original price of a new one. How much did Samantha pay f

Artemon [7]

$\$13+\$5=\$18\\\\2\cdot\$18=\$36\leftarrow answer$

3 0

3 years ago

Read 2 more answers

What is the LCD of 2<br> −1<br> and 3<br> +1<br> ?

bezimeni [28]

Answer:

Step-by-step explanation:

What is the least common denominator of 1/3 and 1 2?

The denominator of the largest piece that covers both fractions is the least common denominator (LCD) of the two fractions. So, the least common denominator of 12 and 13 is 6 .

3 0

3 years ago

The high school tennis team is selling tennis balls to raise $500 for new equipment. They sell the balls for $4 each. A case h

Citrus2011 [14]

Answer:

1.75 cases need to be sold

Step-by-step explanation:

The complete question is

The high school tennis team is selling tennis balls to raise $500 for new equipment.They sell the balls for $2 each.

4).How many cases of tennis balls does the tennis team have to sell in order to raise enough money for new equipment.

Solution

Price of each ball = $4

No. of balls in each package = 3

Total number of balls that need to sold in order to raise $500 is

$\frac{500}{4} = 125$

one package = 3balls

Hence no of packages to be sold

$\frac{125}{3} = 41$ packages and 2 balls or total 42 packages

1 case has 24 packages , thus total number of cases to be sold = $\frac{42}{24} = \frac{14}{8} = \frac{7}{4} = 1.75$

6 0

3 years ago

Evaluate A2 for A = 2.3.

grandymaker [24]

So simply we are putting values in equation A2 A=2.3 So A2 means 2.3 × 2.3 The answer is 5.29

3 0

3 years ago