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pochemuha
3 years ago
11

Please help me out. :)

Mathematics
1 answer:
brilliants [131]3 years ago
4 0

Answer:

x = 13.

Step-by-step explanation:

Because it is an isosceles trapezoid the 2 marked angles are equal, so

5x + 15 = 7x - 11

15 + 11 = 7x - 5x

2x = 26

x = 13.

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Two equal sized plots of land were planted with corn. The first plot reproduced 3,500 bushels of corn.The science plot produced
madreJ [45]
3500:4200 reduce to 35:42 see if you can reduce anymore. you can to 5:6
7 0
3 years ago
Read 2 more answers
In need of help! find the value of x
DaniilM [7]
∆= 180°
180°-(62°+58°)= ?
180°-120°=60°

a line = 180° on both sides.
180°-60°=X
120°=X
3 0
3 years ago
The maximum value of 12 sin 0-9 sin²0 is: -​
jeka57 [31]

Answer:

4

Step-by-step explanation:

The question is not clear. You have indicated the original function as 12sin(0) - 9sin²(0)

If so, the solution is trivial. At 0, sin(0) is 0 so the solution is 0

However, I will assume you meant the angle to be \theta rather than 0 which makes sense and proceed accordingly

We can find the maximum or minimum of any function by finding the first derivate and setting it equal to 0

The original function is

f(\theta) = 12sin(\theta) - 9 sin^2(\theta)

Taking the first derivative of this with respect to \theta and setting it equal to 0 lets us solve for the maximum (or minimum) value

The first derivative of f(\theta) w.r.t \theta is

                        12\cos\left(\theta\right)-18\cos\left(\theta\right)\sin\left(\theta\right)

And setting this = 0 gives

12\cos\left(\theta\right)-18\cos\left(\theta\right)\sin\left(\theta\right) = 0

Eliminating cos(\theta) on both sides and solving for sin(\theta) gives us

sin(\theta) = \frac{12}{18} = \frac{2}{3}

Plugging this value of sin(\theta) into the original equation gives us

12(\frac{2}{3}) - 9(\frac{4}{9} ) = 8 - 4 = 4

This is the maximum value that the function can acquire. The attached graph shows this as correct

3 0
2 years ago
Can you help me with these two because I don't understand​
OverLord2011 [107]

Answer: 1: 34 units    2: 24.5

Step-by-step explanation:

For figure 1, just split the area into squares and triangles and find the area of each. If you split figure 1 into 1 square and 3 triangles you get...

4x4= 16

(4x3)/2= 6

(4x4)/2= 8

(4x2)/2= 3

16+6+8+3 = 34

You do the same for figure 2, but use 4 triangles and 1 tiny square

1x1= 1

(4x3)/2= 6

(3x3)/2= 4.5

(4x4)/2= 8

(5x5)/2= 5

1+6+4.5+8+5= 24.5

You shouldn't need to worry about negative numbers because you are looking at the area

5 0
2 years ago
Plz help me with this problem it’s not that hard at all !!
Brums [2.3K]

Answer:

43x-19y+74

hope this helps!!:)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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