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yanalaym [24]
3 years ago
11

Find the surface area. 7 cm 7 cm 15 cm 7 cm

Mathematics
1 answer:
Sladkaya [172]3 years ago
5 0
55.4 in squared or 355 cm squared
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What is the length of the longest side of a triangle that has vertices at (-2,6) (-4,6) and (-4,4)?
zalisa [80]

Length (2, 6) to (-4, 6) is sqrt((x2 - x1))^2 + (y2 - y1)^2) = sqrt((-4 -2)^2 + (6 - 6)^2) = sqrt((-6)^2 + 0) = 6

Length (2, 6) to (-4, 4) is sqrt((-4 - 2)^2 + (4 - 6)^2) = sqrt((-6)^2 + (-2)^2) = sqrt(36 + 4) = sqrt(40)  = 2sqrt(10) units

Length (-4, 6) to (-4, 4) is sqrt((-4 - (-4))^2 + (4 - 6)^2) = sqrt(0^2 + (-2)^2) = 2

So the length of the longest side is 2sqrt(10) units
6 0
2 years ago
Based on the picture below:<br><br> Solve for AB
Fiesta28 [93]

Answer:

AB ≈ 35.93

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos3.5° = \frac{adjacent}{hypotenuse} = \frac{AB}{AC} = \frac{AB}{36}

Multiply both sides by 36

36 × cos3.5° = AB, thus

AB ≈ 35.93 ( to 2 dec. places)

3 0
3 years ago
A garden is made up of two squares and a quarter circle. What is the area of the garden?
Elanso [62]

9514 1404 393

Answer:

  100.27 ft^2

Step-by-step explanation:

The area of each square is ...

  A = s^2 = (6 ft)^2 = 36 ft^2

The area of the 1/4 circle is ...

  A = 1/4πr^2 = 1/4π(6 ft)^2 = 9π ft^2 ≈ 28.27 ft^2

__

The area of the garden is the sum of the areas of the quarter circle and the two squares:

  A = 28.27 ft^2 + 2×36 ft^2 = 100.27 ft^2

The area of the garden is about 100.27 square feet.

7 0
2 years ago
Dexter sees a jacket that has a regular price of $69.99. He decides to purchase the jacket and gets a 20% discount. How much doe
Evgen [1.6K]

20% as a decimal = 0.20 × 69.99=£14.00

69.99-14=55.99

Step-by-step explanation:

5 0
3 years ago
Reily adds 45.3 and 3.21.should his sum be greater than or less than 48?Tell how you know.
Eddi Din [679]


Greater than 48, because just taking whole numbers 45 + 3  = 48 already.

45.3 is greater than 45 and 3.21 is greater than 3


5 0
3 years ago
Read 2 more answers
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