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2 years ago

ANSWER PLZ QUICK AND FAST

Mathematics

1 answer:

ruslelena [56]2 years ago

4 0

Cut up the shape into triangles, rectangles or trapezoids and calculate the individual areas.

Here,

Top triangle = (1*7)/2 = 3.5

Left triangle = (4*5)/2 = 10

Right trapezoid = (4+5)*3/2=13.5

So total area = 3.5+10+13.5=27

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Two triangles are similar.The the smaller triangle has side 10,20 and 15 units the larger triangles longest side is 52 units.Wha

Oliga [24]

Answer: The perimeter of the largest triangle = 117 units.

Step-by-step explanation:

Sides of smaller triangle = 10,20 and 15 units

Longest side = 20 units

Longest side of larger triangle = 52 units

Sides of two similar triangles are proportional.

Let k be proportionality constant.

$k=\dfrac{\text{Length in larger triangle}}{\text{Length in smaller triangle}}$

$k=\dfrac{52}{20}\\\\\Rightarrow\ k=\dfrac{13}{5}$

Length of other two sides,

$10\times\dfrac{13}{5}, 15\times\dfrac{13}{5}\ i.e.\ 26\text{ units}, 39\text{ units.}$

So sides of larger triangle = 52 units, 26 units , 39 units

Perimeter of largest triangle = 52 +26+39 = 117 units

Hence, the perimeter of the largest triangle = 117 units.

4 0

3 years ago

4х + 3у = — 2 Зу = 4 -x х =? у =?

zlopas [31]

Answer: x=-2, y=2

Step-by-step explanation:

(SUBSTITUTION)

= 4x+4-x=2

x=-2

3y=4 x (-2)

y= 2

3 0

3 years ago

Read 2 more answers

A roll of quarters is shaped like a cylinder and contains 40 each quarter has a thickness of 1.75 and a diameter of 24.26 mm Wha

jarptica [38.1K]

Answer:

D) 32,357mm^3

Step-by-step explanation:

Given

$Quarters = 40$

$Thickness = 1.75mm$

$diameter = 24.26mm$

First, we calculate the volume of 1 roll.

The volume of the cylinder is:

$V = \pi r^2h$

Where

$r = \frac{1}{2} * diameter$

$r = \frac{1}{2} * 24.26mm$

$r = 12.13mm$

And the thickness represents the height.

So:

The volume is:

$V = 3.142 * 12.13^2 * 1.75$

$V = 809.03mm^3$

The volume of the 40 is:

$Roll= 40 * 809.03mm^3$

$Roll=32361.20mm^3$

The closest option is (d):

7 0

3 years ago

My teacher wouldn't help me.. and this is my last question. I need to know how to find the perimeter of the geometric figure (it

nika2105 [10]

This isn't really a geometry problem. It's just an addition of fractions.

You know that 'perimeter' means 'the distance all the way around'.
And you know the length of all the sides of the parallelogram.
All you need to do is add them up !

(13/12) + (3/13) + (13/12) + (3/13) = the perimeter

Notice that two of the sides are equal, and the other two sides are also equal.
So you can make the job a little easier if you add up the twelfths first

(13/12) + (13/12) = 26/12

and then add up the thirteenths ...

(3/13) + (3/13) = 6/13 .

Now, the perimeter looks a little bit less complicated.
It's just
(26/12) + (6/13) = the perimeter.

This is the tough part. Before you can add fractions, they need to have
a common denominator.

The smallest common denominator for 12ths and 13ths is 156 !
Change each fraction to (something over 156), and add um up.
I'll leave that part to you.

5 0

3 years ago

What is −183 ? Group of answer choices

vitfil [10]

Answer:

it is b because I did the problem yes it is b

7 0

3 years ago