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forsale [732]
3 years ago
15

PLEASE HELP I've tried over 2 times and failed please help.

Mathematics
1 answer:
Gala2k [10]3 years ago
6 0

Answer:

1. 700 ft. - 800 ft.

2. 85 ft. - 115 ft.

Step-by-step explanation:

Because I'm in highschool

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The diagram shows a solid which is half of a cone. Calculate the total surface area of the solid.
Vilka [71]

Answer:

<h2>100πcm².</h2><h2>None of the options is correct</h2>

Step-by-step explanation:

Total surface area of a cone S = \pi r^{2}+\pi  rl\\

Since the diagram is half of a cone, its surface area will be S = \frac{\pi r^{2} +\pi rl}{2}

r = radius of the cone

l = slant height

From the diagram diameter of the cone = 16m;

r = 16/2 = 8m

l = 17m

S = \frac{\pi (8)^{2} +\pi (8)(17)}{2}\\S = \frac{64\pi + 136\pi }{2} \\S = 32\pi + 68\pi \\S = 100\pi cm^{2}

5 0
3 years ago
Which equation can be solved using the expression -3 plus or minus the square root of (3)^2+4(10)(2)/2(10) for x?
monitta

Answer: B. 2=3x+10x^2

Step-by-step explanation:

The expression means the quadratic function equation.

B = 10x^2 + 3x -2 = 0

the equation is [-b ±√(b^2 -4ac)]/2a

b should be +3 to become -3 when it is plugged into the equation, and 'a' should be 10, and c should be -2.

5 0
3 years ago
Given f^-1(36)=7, what value of x makes f(x)=36​
maw [93]

Answer:

x =7

Step-by-step explanation:

{f}^{ - 1} (36) = 7 \\  \\  \implies \: 36 =  {f} (7)  \\  \\ f(x) = 36.... (given) \\  \\ f(7) = f(x) \implies \: x = 7

4 0
3 years ago
At the 2013 track all city final Jefferson high relay team ran the 400 meters in 40.01 steconds Clark high ran the race in 40.02
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1.jefferson

2.clark

3.muggles

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4 years ago
Please help me out with this
Masteriza [31]

Answer:

C.) x≥ -2/3

Step-by-step explanation:

7 0
3 years ago
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