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mariarad [96]
3 years ago
5

A contractor is considering a sale that promises a profit of 39,000 with a probability of .7 or a loss ( due to bad weather, str

ikes ,and such ) of 11,000 whit a probability of .3. What is the expected profit?
Mathematics
1 answer:
Gre4nikov [31]3 years ago
5 0

Answer:answer is 398

Step-by-step explanation:

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The circumference of a standard baseball is about 9in. About how many square inches of horsehide are required to cover 100 balls
Marta_Voda [28]
This is the concept of area of solid materials, we are required to calculate the total area of horsehide that is required to cover 100 balls with each having a circumference of 9 in.
The area of hide required will be given by:
area=(area of each ball)*(total number of balls)
area of each ball is given by:
SA=4πr^2
given that the circumference is 9in, we are required to find the radius of the ball
Circumference, c=2πr
thus;
9=2πr
r=9/(2π)
r=1.4 in
Therefore the surface area will be:
SA=4π*1.4^2=24.6 in^2
Therefore the area of horsehide required to cover 100 balls will be:
Area=24.6*100=2,460 in^2.
5 0
3 years ago
I will give brainliest for correct answer!
zavuch27 [327]

Answer:

you forgot the question

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
f(x) is a quadratic function with x-intercepts at (−1, 0) and (−3, 0). If the range of f(x) is [−4, [infinity]) and g(x) = 2x^2
iren2701 [21]

Answer with Step-by-step explanation:

We are given that function f(x) which is quadratic function.

x -intercept of function f(x) at (-1,0) and (-3,0)

x-Intercept of f means zeroes of f

x=-1 and x=-3

Range of f =[-4,\infty)

g(x)=2x^2+8x+6=2(x^2+4x+3)

g(x)=0

2(x^2+4x+3)=0

x^2+4x+3=0

x^2+3x+x+3=0

x(x+3)+1(x+3)=0

(x+1)(x+3)=0

x+1=0\implies x=-1

x+3=0\implies x=-3

Therefore, x-intercept of g(x) at (-1,0) and (-3,0).

Substitute x=-2

g(-2)=2(-2)^2+8(-2)+6=8-16+6=-2

g(x)=2(x^2+4x)+6

g(x)=2(x^2+2\times x\times 2+4-4)+6=2(x^2+2\times x\times 2+4)-8+6

g(x)=2(x+2)^2-2

By comparing with the equation of parabola

y=a(x-h)^2+k

Where vertex=(h,k)

We get vertex of g(x)=(-2,-2)

Range of g(x)=[-2,\infty)

Zeroes of f and g are same .

But range of f and g are different.

Range of f contains -3 and -4 but range of g does not contain -3 and -4.

f and g are both quadratic functions.

3 0
3 years ago
Use a graphing calculator to solve the equation 3 tan 1/3 theta
lesantik [10]
Did you get the answer

5 0
3 years ago
Read 2 more answers
Please help!! i need this for my test or i totally fail my grade! its my last shot
MakcuM [25]

Answer:

7x^2 - 52x + 5

Step-by-step explanation:

if you dont know what that weird symbol is, it means to the power of 2

Hope this helps, can i have brainliest

3 0
2 years ago
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