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Anna007 [38]
3 years ago
13

Help help help help help

Mathematics
1 answer:
Nesterboy [21]3 years ago
8 0

Answer:

b =  \sqrt{65}

Step-by-step explanation:

{b}^{2}  +  {4}^{2}  =  {9}^{2}  \\  {b}^{2} + 16 = 81 \\  {b}^{2}   = 81 - 16 \\  {b}^{2}  = 65 \\ b =  \sqrt{65}

I hope I helped you^_^

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A sphere has a radius of 5. What is its diameter?
mr_godi [17]

Answer:

D=10

Step-by-step explanation:

Diameter of a Sphere

D = 2 r

D=2(5)

D=10

5 0
3 years ago
Read 2 more answers
FASTEST ANSWER WITH STESP FOR PROOF GETS BRAINLIEST
bogdanovich [222]

Answer:

314.16 m (if pi = 3.14) || 314π m (if (you may want to check the math yourself, just in case!)

Step-by-step explanation:

Step 1) Formula of a cone.

•volume = (1/3) * π * r² * h. [Or, if you prefer, volume = π * r² * h/3 ]

Step 2) Apply numbers.

•r = 1/2 * base diameter || r = 5 m

•height(h)= 12 m

Step 3) Apply formula.

V= (1/3) * π * 5² * 12

[Step 4 depends on how you learn, and this also dictates the answer, please read carefully.]

Step 4a) IF DEFINITE EXACT ANSWER (π = π), then V= 314.16

Step 4b) IF π = 3.14, then V= 314π

I was taught in a strange way where two different methods can be applied, so the answer depends on which one you've been taught!

(apologies if a mistake has been made)

5 0
2 years ago
A $7000 motorcylce depreciates at 10% each year. Which value would represent the initial amount of the exponential function that
gayaneshka [121]
The "initial amount" is $7,000, the price of the motorcycle when new.

The exponential function in question is V = $7000(1-0.1)^n, where n is the number of years elapsed since the purchase of the cycle.


3 0
4 years ago
The area of a circle is 50.24 square miles. What is the circle's diameter? Use 3.14 for Pi.
ratelena [41]

Answer:

diameter = 8 miles

Step-by-step explanation:

Area of a circle = πr²

πr² = 50.24

3.14*r² = 50.24

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r² = 16

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7 0
4 years ago
6)Factor: x^2+1/3x+1/36
trasher [3.6K]

Answer:

(x+4)(x+9)=0. Your answer would be x=-4 and x=-9. Explanation:: (x+4)(x+9) x times x=x2 x(9)+x(4)=13x 4 times 9=36 = x2+13x+36.(x+4)(x+9)=0. Your answer would be x=-4 and x=-9. Explanation:: (x+4)(x+9) x times x=x2 x(9)+x(4)=13x 4 times 9=36 = x2+13x+36.

7 0
3 years ago
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