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miv72 [106K]
3 years ago
6

Q.Take out the area of the trapezium.Parallel sides-15,23Non parallel sides-10,8​

Mathematics
2 answers:
-Dominant- [34]3 years ago
8 0

Answer:

i think the person who had answer in first is right

Dmitriy789 [7]3 years ago
3 0

Answer:

Step-by-step explanation:

Area of a trapezium is the average of the parallel sides times the distance between them.

If we subtract 15 units from each of the parallel sides, we end up with a triangle that has two sides of 8 units and one of 10 units. One of the 8 unit sides is the base and we need to find the height h which is perpendicular to this base.

Let the base be split into two segments, call one A, the other will be 8 - A

From Pythagoras.

10² - A² = h² = 8² - (8 - A)²

10² - A² = 8² - (8 - A)²

100 - A² = 64 - (64 - 16A + A²)

100 - A² = 64 - 64 + 16A - A²

     100  =  16A

         A = 6.25

h = √(10² - 6.25²)

h = √60.9375  

A = ½(15 + 23)√60.9375  

A = 148.31870246... ≈ 148.3 cm²

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What is the effect on the graph of the function f(x) = 2x when f(x) is replaced with f(−5x)?
Amiraneli [1.4K]

Answer:

C) horizontal compression and reflection across the y-axis

Step-by-step explanation:

To quickly solve this problem, we can use a graphing tool or a calculator to plot the equation.

Please see the attached image below, to find more information about the graph

The original equation is:

f(x) = 2x

The new equation is:

f(-5x) = 2(-5x)

f(-5x) = -10*x

The answer is

C) horizontal compression and reflection across the y-axis

4 0
2 years ago
Help pleaseeeeeeeeeeeeee
Kaylis [27]

Answer:

with what

Step-by-step explanation:

5 0
3 years ago
The length of a rectangle is 45 inches more than the width. The perimeter is 346 inches. Find the length and the width.
dybincka [34]

Solution:

  • Perimeter of Rectangle = 346

Let Required length of breadth be x

  • Then, Length of Rectangle = 45 + x

Now, We have ;

  • Perimeter of Rectangle = 2(l+b)
  • Perimeter of Rectangle = 2 ( 45 + x + x
  • 346 = 2 ( 45 + 2x )
  • 346 = 90 + 4x
  • 346 - 90 = 4x
  • 256 = 4x
  • x = 256 ÷ 4
  • x = 64 inches

So, Length of Rectangle = x + 46

Length of Rectangle = 64 + 46

Length of Rectangle = 110 inches

Now, Breadth of Rectangle = 64 inches.

6 0
3 years ago
Read 2 more answers
Giving away extra points​
Eva8 [605]
Hi ty for the points, answer is the light blue one
7 0
2 years ago
I need help with these problems
Lapatulllka [165]

Measure of ∠C = 77°

And,  Sides of triangles are;

a = 0.95

b = 0.566

c = 0.99

What is Sine rule of triangle?

By the definition of sine rule,

sin A / a = sin B / b = sin C / c

Where, a, b, c are sides of a triangle.

Given that;

Measure of ∠A = 27°

Measure of ∠B = 76°

Since, Sum of all angles of triangle = 180°

Hence,

∠A +  ∠B +  ∠C = 180°

27° + 76° + ∠C = 180°

∠C = 180° - 103°

∠C = 77°

So, Measure of ∠C = 77°

Since, By the definition of sine rule,

sin A / a = sin B / b = sin C / c

Since, sin A = sin 27° = 0.95

sin B = sin 76° = 0.566

sin C = sin 77° = 0.99

Hence,

0.95 / a = 0.566 / b = 0.99 / c = 1 / k

Taking terms as;

0.95 / a = 1 / k

a = 0.95 k

And, 0.566 / b = 1 / k

b = 0.566 k

And, 0.99 / c = 1 / k

c = 0.99 k

Hence, Sides of triangles are;

a : b : c = 0.95 k : 0.566 k : 0.99 k

a : b : c = 0.95 : 0.566 : 0.99

Thus, Measure of ∠C = 77°

And,  Sides of triangles are;

a = 0.95

b = 0.566

c = 0.99

Learn more about the sine rule visit:

brainly.com/question/27174058

#SPJ1

7 0
1 year ago
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