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Veronika [31]
4 years ago
7

Pls help will give brainliest answer and 5star

Mathematics
1 answer:
Ipatiy [6.2K]4 years ago
6 0

1. Which polygon or polygons are regular?

A regular polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).

Therefore your answer is:

A. equilateral triangle

C. square


2. Which polygon is always irregular?

traingle - NOT (equilateral triangle)

trapezoid - YES

square - NOT

hexagon - NOT (regular hexagon)

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Please help me s+5s=
AfilCa [17]

Answer:

s+5s=6s

Step-by-step explanation:

not sure if im right but hope this helps

4 0
3 years ago
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Please pleas help me!!
sasho [114]

Answer:

x = 3 and y = 1

Step-by-step explanation:

The given equations are :

6x + 14y = 32  ...(1)

6x - 14y = 4 .....(2)

Add equation (1) and (2) :

6x + 14y + 6x - 14y = 32 + 4

12x = 36

x = 3

Put the value of x in equation (1)

6(3) + 14y = 32

18 + 14y = 32

14y = 32-18

14y = 14

y = 1

Hence, the value of x is 3 and y is 1.

5 0
3 years ago
A house blueprint has a scale of 1 in. : 4 ft. The length and width of each room in the actual house are shown in the table. Com
Mariulka [41]
We know that
scale------------> 1 in/4 ft
[blueprint]=scale*[actual]

Part 1) <span> Living room 
lenght (20 ft)  -------------> </span>[blueprint]=(1/4)*20=5 in<span>
width (8 ft) ----------------> </span>[blueprint]=(1/4)*8=2 in

Part 2) Kitchen   
length (16 ft)  -------------> [blueprint]=(1/4)*16=4 in
width (16 ft) ----------------> [blueprint]=(1/4)*16=4 in

Part 3) Office   
length (8 ft)  -------------> [blueprint]=(1/4)*8=2 in
width (16 ft) ----------------> [blueprint]=(1/4)*16=4 in

Part 4) Bedroom 1   
length (8 ft)  -------------> [blueprint]=(1/4)*8=2 in
width (16 ft) ----------------> [blueprint]=(1/4)*16=4 in

Part 5) Bedroom 2   
length (20 ft)  -------------> [blueprint]=(1/4)*20=5 in
width (20 ft) ----------------> [blueprint]=(1/4)*20=5 in

Part 6) <span>Bathroom</span>   
length (6 ft)  -------------> [blueprint]=(1/4)*6=1.5 in
width (8 ft) ----------------> [blueprint]=(1/4)*8=2 in

see the attached figure to view the table

3 0
4 years ago
Read 2 more answers
Does someone know this one please :)
GarryVolchara [31]
6/11(5/6)+2/11(5)
=5/11+10/11
=15/11
3 0
3 years ago
Solve as a difference equation.
zhannawk [14.2K]

Solution :

Let y = amount of caffeine at a given time in body.

n = number of hours

So $\frac{dy}{dn}= - \ Y$

$\Rightarrow \frac{dY}{Y}=- 0.01 \ dn

ln Y = -0.01 n + C

At n = 0, Y = 130 mg

ln 130 = -0.01 x 0 + C

C = ln 130

$ \ln \frac{Y}{130} =- 0.01 \ n$

$Y = 130 \ e^{-0.01n}$

When Y = 65

$65 = 130 \ e^{-0.01 n }$

$\frac{65}{130}=e^{-0.01n}$

$\ln \frac{1}{2} = -0.01 \ n$

n = 69.315 hours

At n = 24 hours

$Y = 130 \ e^{-0.01 \times 24}$

Y = 102.26 mg

8 0
3 years ago
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