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3 years ago

HELP ME WITH THIS!!!!!!!!!

Mathematics

1 answer:

valentina_108 [34]3 years ago

8 0

Answer:

A ≈ 78.6 ft²

Step-by-step explanation:

Height of an equilateral triangle of side 6

h = √(6² - 3²) = √27

A = 3(½(6)(7)) + (½(6)(√27))

A = 63 + 15.6

A ≈ 78.6 ft²

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1. What is the value of x? Show all of your work.

asambeis [7]

AB^2 + BC^2 = AC^2
AB^2 + 6^2 = square root 117^2
AB^2 + 36 = 117

Now subtract 117 from both sides
AB^2 = 81
AB = square root 81 = 9
$\sqrt{81} = 9$
Therefore AB is 9 cms.

3 0

3 years ago

. The temperature fell 13°c on each of the first 2 days of the week. It rose 7°c on each of

Rina8888 [55]

Answer:

The final temperature was 9 degrees.

Step-by-step explanation:

You can first multiply 13x2, 7x2, and 9x2. Then you subtract 26 and 18 from 34. then add 14

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3 years ago

Jake draws a drinking glass with a scale of 2 units on his graph paper represents 2.5 cm. The glass is 8 units tall in the drawi

alexandr1967 [171]

Answer:

Ratio 2= 2.5

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Step-by-step explanation:

Ratios and multiply each side by 4 to get the ratio 2:2.5 to 8:10

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4 years ago

The midpoint of AB is M (0, -3). If the coordinates of AA are (2, 1) what are the coordinates of BB?

frez [133]

Answer:

B(-2, -7)

Step-by-step explanation:

Midpoint is (0, -3)

A(x₁, y₁) B(x₂, y₂)

A(2, 1)

$Midpoint = (\frac{x_{1} + x_{2} }{2}, \frac{y_{1} + y_{2} }{2} )\\\\Midpoint = (\frac{2+ x_{2} }{2}, \frac{1 + y_{2} }{2} )$

$(0, -3) = (\frac{2+ x_{2} }{2}, \frac{1 + y_{2} }{2} )$

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∴ B(-2, -7)

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3 years ago

Find the range of 83,70,21,48 and 116

jeka94

Answer:

The range is 95

Step-by-step explanation:

The range of a discrete data set is the difference between the least and the highest value.

The given date set is 83,70,21,48 and 116.

We sort it to get:

21,48,70,83,116

The range is 116-21=95

3 0

3 years ago

Read 2 more answers