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2 years ago

Please help with number 10

Mathematics

1 answer:

Flura [38]2 years ago

3 0

Answer:

see below for a drawing
the area of one of the trapezoids is 20 units²

Step-by-step explanation:

No direction or other information about the desired parallelogram is given here, so we drew one arbitrarily. Likewise for the segment cutting it in half. It is convenient to have the bases of the trapezoids be the sides of the parallelogram that are 5 units apart.

The area of one trapezoid is ...

A = (1/2)(b1 +b2)h = (1/2)(3+5)·5 = 20 . . . . square units

The sum of the trapezoid base lengths is necessarily the length of the base of the parallelogram, so the area of the trapezoid is necessarily 1/2 the area of the parallelogram. (The area is necessarily half the area of the parallelogram also because the problem has us divide the parallelogram into two identical parts.)

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In right triangle JFK sin(52)= cos(5x-2). What is the measure of the smallest angle in the triangle?

jeyben [28]

Answer:

48°

Step-by-step explanation:

Given the trigonometry equation

sin(52)= cos(5x-2)...1

According to the quadrant:

Sin(θ) = cos(90-θ)

Sin52 = cos(90-52)

Sin52 = cos48... 2

Substituting 2 into 1:

Cos48 = cos(5x-2)

48 = 5x-2

5x = 48+2

5x = 50

x = 10°

The smallest of the angle will be angle 5x-2 = 5(10)-2

= 50-2

= 48°

7 0

3 years ago

Solve the equation below -1/5x-18=2

rjkz [21]

-1/5x - 18 = 2
-x - 18(5) = 2(5)
-x = 10 + 90
-x = 100
x = -100

8 0

2 years ago

Read 2 more answers

I need h e l p !!!!!!!!!!!!!!!!

Strike441 [17]

Answer:

3/ 23765

Step-by-step explanation:

There are 12 E's out of 100 tiles.

Tiles are not replaced.

The probability of each of first 4 E's is:

The first E ⇒ P(E) = 12/100 = 3/25
The second E ⇒ P(E) = 11/99 = 1/9
The third E ⇒ P(E) = 10/98 = 5/49
The fourth E ⇒ P(E) = 9/97

The probability of 4 E's is:

P(4 E's) = 3/25*1/9*5/49*9/97 = 3 / (5*49*97) = 3 / 23765

3 0

2 years ago

The product of a number and 12 is nomore than 15

allsm [11]

Answer:

As an equation, the product of a number and 12 is no more than 15 would be:

12n ≤ 15

N would represent the number.

≤ means less than or equal to, which is the same as "no more than".

5 0

3 years ago

Please help ASAP it is due today

Dmitrij [34]

Answer:

Step-by-step explanation:

What we know

total sum of angles = 540 deg

3/2 b cam also be written as 1.5b degrees.

So 1.5b + (b+45) + (2b - 90) +90 = 540

Step 1 -- get rid of parenthesis

1.5b + b + 45 +2b -90 +90 =540

Step 2 -- combine the like expressions

4.5b + 45 = 540

Step 3 -- subtract 45 from both the sides

4.5b = 495

Step 4 -- divide 4.5 from both the sides

b = 110 ----- not the right answer

Thats not right okay im sorry

but i guess if it is not 110 it should be 100, 90 etc.

90 = b is correct

4 0

2 years ago