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3 years ago

the length of two triangles are 5cm and 8cm.the perimeter of the triangle is 20cm.calculate the area of the triangle?

Mathematics

1 answer:

mote1985 [20]3 years ago

6 0

Step-by-step explanation:

20+8+5=33

33×3=99

hope it helps broo

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How many hours would someone earns 7.50 per hour have to work to earn $116.25

SCORPION-xisa [38]

Let h = amount of hours

$7.5h=116.25$

Since they earn $7.50 per hour, we can multiply that by an unknown amount of hours to get $116.25. Let's solve:

$7.5h=116.25$

Divide both sides by 7.5 to isolate the h, amount of hours.

$\frac{7.5h}{7.5}=\frac{116.25}{7.5}$

Simplify.

$h=15.5$

In conclusion, someone would have to work 15.5 hours to earn $116.25 if they earn $7.50 per hour.

5 0

3 years ago

Hi please help this is due today thank u so much.

KatRina [158]

Answer: 8.944272

Step-by-step explanation:

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6 0

3 years ago

What is the product of any nonzero real number and it’s multiplicative inverse?

Elis [28]

Answer:

Step-by-step explanation:

The product of any nonzero real number and its multiplicative inverse (reciprocal) is always 1. This is called the multiplicative identity or the identity element of multiplication.

~Hope this helps!~

7 0

4 years ago

EFV and EDW are straight lines. Find the value of x and of y.

Makovka662 [10]

Answers:

x = 72

y = 83

============================================================

Explanation:

Angle VFG is 50 degrees. The angle adjacent to this is angle EFG which is 180-50 = 130 degrees.

Angle HDW is 77 degrees. The supplementary angle adjacent to this is 180-77 = 103 degrees which is angle EDH.

Pentagon EFGHD has the following five interior angles

E = x
F = 130
G = 170
H = 65
D = 103

Note that angles F = 130 and D = 103 were angles EFG and EDH we calculated earlier.

For any pentagon, the interior angles always add to 180(n-2) = 180(5-2) = 180*3 = 540 degrees.

This means,

E+F+G+H+D = 540

x+130+170+65+103 = 540

x+468 = 540

x = 72

---------------------------------------

Now focus your attention on triangle THS

We see that the interior angles are

T = y
H = 65
S = 32

The angle H is 65 degrees because it's paired with the other 65 degree angle shown. They are vertical angles.

For any triangle, the angles always add to 180

T+H+S = 180

y+65+32 = 180

y+97 = 180

y = 180-97

y = 83

7 0

3 years ago

Six boys are comparing their heights. Andy is taller than Dan but shorter than Ethan. Bill is taller than Ethan and Frank. Frank

Alexxx [7]

List of boys from tallest to shortest is: Bill, Frank, Ethan, Andy, Dan, Cory

<h3>Solution:</h3>

Given that Six boys are comparing their heights

The six boys are Andy, Dan, Ethan, Bill, Frank, Cory

To find: List the boys from tallest to shortest

Andy is taller than Dan but shorter than Ethan

So the arrangement goes like this:

Ethan

Andy

Dan

Bill is taller than Ethan and Frank:

So Bill is taller than ethan. Thus the arrangement from tall to short is made as:

Bill

Ethan

Andy

Dan

Also bill is taller than frank. So frank can be placed anywhere below bill

But given that Frank is taller than Ethan. So frank can be placed above ethan

Now the arrangement goes like this:

Bill

Frank

Ethan

Andy

Dan

Cory is shorter than Dan.

So cory can be placed below Dan.

Thus final arrangement from tallest to shortest boys are:

Bill

Frank

Ethan

Andy

Dan

Cory

5 0

3 years ago

the length of two triangles are 5cm and 8cm.the perimeter of the triangle is 20cm.calculate the area of the triangle?​

the length of two triangles are 5cm and 8cm.the perimeter of the triangle is 20cm.calculate the area of the triangle?