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Mandarinka [93]
3 years ago
12

If BAC = ADB = 90. The value of x is

Mathematics
1 answer:
alexandr1967 [171]3 years ago
8 0
I’m extremely sorry, I am stumped
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13. Find the surface area of each figure to the nearest tenth. Show your work.
stiv31 [10]
A. The figure is a triangular pyramid. You can findits surface area by adding up the area of the three faces of the triangle and the area of the base. A derived formula also is used where the SA is equal to 12 times the perimeter of base times the slant height, added to that is the area of the base. The area of the square base is s^2. Its perimeter is 4s.

SA of Pyramid = 12*P*l + s^2
SA of Pyramid = 12*4s*l + 16^2
SA of Pyramid = 12*4(16)*(17) + (16)^2
SA of Pyramid = 11,008 square inches

b.) The formula for the SA of a cone is: 

SA of cone = πr[r+√(h^2+r^2)]
SA of cone = π(3)[(3+√(8^2+3^2)]
SA of cone = 108.8 square inches
7 0
3 years ago
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What is 0.88 ÷84.48
Alexeev081 [22]
0.88 divided by 84.48 is 0.0104.....
5 0
3 years ago
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Will give brainliest
suter [353]

Answer:

a

Step-by-step explanation:

4 0
3 years ago
Alisa is making bracelets with leather bands. each bracelet uses 7 3/4 inches of leather banding. she plans to make 4 bracelets.
Artyom0805 [142]
Each bracelet is 7 \frac{3}{4} inches

Turn it into an improper fraction 

Multiply 7 and 4 and add 3 which is over 4 which is \frac{31}{4}

Multiply by 4 | for each bracelet being made

\frac{31}{4} * \frac{4}{1}= \frac{124}{4}

124÷4=31

Answer:

You need 31 inches to make all the braclets
5 0
3 years ago
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OLga [1]

Answer:

994

Step-by-step explanation:

happy to help ya :)

3 0
3 years ago
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