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mamaluj [8]
3 years ago
7

Water

Mathematics
1 answer:
Kazeer [188]3 years ago
8 0

Answer:

the surface area is 3140 square feet

Step-by-step explanation:

The computation of the surface area is given below:

Given that

Diameter = 20 feet

radius =  20 ÷ 2 = 10 feet

Surface area = 2\pi r^2 + 2\pi rh

= 2 × 3.14 × (10)^2 + 2 × 3.14 × 10 × 40

= 6.28  × 100  + 6.28  × 400

= 628 + 25.12  × 100

= 628+ 2512

= 3140 square feet

hence, the surface area is 3140 square feet

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Give a rule of the piecewise-defined function.
nataly862011 [7]

The equation of the piecewise function is f(x) = \left[\begin{array}{ccc}3&x \le -1\\-1&x > 2\end{array}\right

<h3>The piecewise function</h3>

On the graph, we have:

  • y = 3 for all x values not more than -1
  • y = -1 for all values greater than 2

Hence, the piecewise function is:

f(x) = \left[\begin{array}{ccc}3&x \le -1\\-1&x > 2\end{array}\right

<h3>The domain of the function</h3>

This is the set of input values

In (a), we have:

x ≤ -1 and x > 2

Hence, the domain is (∞, 3] u (2, ∞)

<h3>The range of the function</h3>

This is the set of output values

In (a), we have:

f(x) = 3 and f(x) -1

Hence, the range is [3] u (-1)

Read more about piecewise function at:

brainly.com/question/18859540

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2 years ago
The null hypothesis is that the average high temperature in December is 45 degrees. If someone reports that the average was 52 d
Vanyuwa [196]
P-value approach is used to take a decision to reject or accept the null hypothesis as indicated below:
<span>REJECT the hypothesis, if p-value </span><span>FAIL TO REJECT the hypothesis, if p-value > the alpha value.
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<span>If alpha value is NOT indicated: alpha = 0.05 can be assumed </span>

<span>REJECT the hypothesis, because p-value (0.036) < the alpha value assumed which is 0.05</span>
7 0
3 years ago
Y=3x-2 what is the value of y? when y=-1/3
Olin [163]
Oddly enough, when y=-1/3, the value of y is -1/3.

When x = -1/3, the value of y is
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When x = -1/3, the value of y is -3.
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3 years ago
What is the value of x in the equation 2x - 3 = 9- 4x? o 6 o 3 O 1 02​
riadik2000 [5.3K]

Answer:

2? The last one

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP
Lesechka [4]

Answer:

A. f and h

Step-by-step explanation:

For a linear function the First Differences of the y-values must be a constant. i.e. if we take the difference between any two consecutive y values or values of f(x) it should be the constant. For this rule to work, x values must change by the same number every time, which is true for all three given functions.

For function f:

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We can see the difference in consecutive two values is a constant i.e. 3, so the First Difference is the same. Hence, function f is a linear function.

For function g:

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We can see the difference among two consecutive values is not a constant. Since the first differences are not the same, this function is not a linear.

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We can see the difference among two consecutive values is a constant i.e. 36. Therefore, function h is a linear function.

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3 years ago
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