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2 years ago

Concept in statistics

Mathematics

1 answer:

Delicious77 [7]2 years ago

5 0

Answer:

Step-by-step explanation:

Line graph seems appropriate :)

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In 1980, wind turbines in Europe generated about 5 gigawatt-hours of energy. Over the next 15 years, the amount of energy increa

Zinaida [17]

Well the equation could be, f(x)=5(1.59)^15
which would equal 5247

3 0

3 years ago

Solve for :

Ierofanga [76]

Here's link $^{}$ to the answer:

bit. $^{}$ ly/3gVQKw3

6 0

3 years ago

Read 2 more answers

The base of a triangle exceeds the height by 4 feet. If the area is 58.5 square feet, find the length of the base and the height

tigry1 [53]

Answer:

The answer is the height h equals 9

Step-by-step explanation:

$a = \frac{1}{2} bh = 58.5\\ b = h + 4$

$58.5 = \frac{(h + 4)h}{2} = \frac{ {h}^{2} + 4h}{2}$

$117 = {h}^{2} + 4h \\ {h}^{2} + 4h - 117 = 0$

$x1 = - 2 + u \\ x2 = - 2 - u\\ x1x2 = ( - 2 + u)( - 2 - u) = - 117$

$4 - {u}^{2} = - 117 \\ 4 + 117 = {u}^{2} \\ {u}^{2} = 121$

$\sqrt{ {u}^{2} } = + or - \sqrt{121} \\ u = + or - 11$

$x1 = - 2 + 11 = 9 \: or \\ x2 = - 2 - 11 = - 13$

since areas have to be positive -13 is incorrect therefore

$h = 9$

Check:

$58.5 = \frac{(h + 4)h}{2} = \frac{(9 + 4)9}{2} = \\ \frac{13 \times 9}{2} = \frac{117}{2} = 58.5$

5 0

2 years ago

Plss help asap :) (if your reading this I hope you have a great day!)

Alika [10]

Neither.

Parallel lines have the same slope.
Perpendicular lines have negative reciprocal slopes.

Rewriting the 2nd equation to solve for y,
You get:

Y=1/5x + 1/2

The first equation slope is negative, and the second is positive. However, the second slope is 1/5, and not 5/1 - which would be the negative reciprocal of (-1/5)from the first equation.

Hope that helps!

8 0

3 years ago

Find the solution of the system of linear equations below y = 5x +1 –5x + y = 1

jeka57 [31]

Answer:

Infinite number of solutions.

Step-by-step explanation:

Y=5x+1

-5x+Y=1

substitute value of y in first equation (5x+1) into 2nd equation

-5x+5x+1=1

0+1=1

1=1

since answer equals on both sides of the equatio, the answer is determined to be infinite.

4 0

2 years ago