1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
melomori [17]
2 years ago
7

Need help please okok

Mathematics
1 answer:
Dovator [93]2 years ago
7 0
Could you put a better photo up there because I cannot see that very well.
You might be interested in
Expand using binomial theorem
kari74 [83]
The answer is -1
Hope this helps!
5 0
2 years ago
WILL GIVE BRAINLIEST
Len [333]
2/10 because there are 10 cards and there are 5 circles and 3 triangles 
6 0
3 years ago
Read 2 more answers
I need to find the perimeter and area of the regular polygon.
mezya [45]
The area of a polygon is given by the formula Area = ap/2 where a is the length of the apothem and p is the perimeter. The apothem is a line from the center of the polygon perpendicular to a side.

Depending on the formula you know, you can find the length of a side in 1 of 2 ways. 

The first way uses a triangle. Using the radius of the polygon you can create 8 congruent triangles. The center angle will be 360 / 8 = 45 and two side lengths of 20. You can find the length of the base using the law of cosines.

c^2 = 20^2 + 20^2 - 2(20)(20)(cos 45)
c^2 = 400 + 400 - 800(cos 45)
c^2 = 800 - 800(cos 45)
c = sqrt(800 - 800(cos 45)
c = 15.31

The second way is to use this formula:
r = s / (2 sin(180 / n))
20 = s / (2 sin(180/8)
(20)(2)sin(22.5) = s
(40)sin(22.5) = s
s = 15.31

We need to calculate the perimeter. As there are 8 sides (8)(15.31) = 122.48
Now we need to calculate the apothem using

a = S / (2 tan (180 / n)
a = 15.31 / (2 tan (180 / 8))
a = 18.48

Now solve for the area

Area = ap/2
Area = (18.48)(122.48)/2
Area = 1131.72

perimeter = 122.48
area = 1131.72
7 0
2 years ago
It will take Adam four hours to drive to Disney Park, and 2.5 times less time if driving 45 mph faster. What is the distance Ada
Travka [436]

Answer:

120 miles

Step-by-step explanation:

we know that

The speed is equal to the distance divided by the time

Let

s------> the speed in mph

d-----> the distance in miles

t -----> the time in hours

s=d/t

solve for the distance

d=s*t

<em>It will take Adam four hours to drive to Disney Park</em>

s=x mph

t=4 h

substitute

d=4x -----> equation A

<em>It will take Adam 2.5 times less time if driving 45 mph faster</em>

so

s=(x+45) mph

t=4/2.5=1.6 h

substitute

d=1.6(x+45) -----> equation B

equate equation A and equation B

4x=1.6(x+45)

Solve for x

4x=1.6x+72

4x-1.6x=72

2.4x=72

x=30 mph

Find the distance d

d=4x -----> d=4(30)=120 miles

3 0
3 years ago
Read 2 more answers
What are the zeros of f(x)=(x+5)(x-9)?
klemol [59]

Answer:

x= -5

x= 9

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • T takes tristan 30 minutes to read 20 pages of her book. if she continues to read at this rate, how long will it take her to rea
    7·2 answers
  • Five times the sum of 8u and eight gives one hundred sixty
    7·1 answer
  • Find the unit rate for 521 miles in 14 hours.
    9·2 answers
  • Identify one linear equation and one nonlinear equation, and state why it is linear or nonlinear. Thanks
    9·1 answer
  • Pearl drove 90 miles and used 5 gallons of gas. Lourdes used 2 gallons of gas to drive 48 miles.
    8·1 answer
  • Hi could some one please help me !!
    14·2 answers
  • Okay very important question.
    13·1 answer
  • A rectangular playground has a width of 540 feet and a length of 810 feet. Martina makes a scale model of the playground using a
    11·1 answer
  • The radius of a circle is 9 inches. What is the circle's area?<br> Use 3.14 for ​.
    5·2 answers
  • What is the area, in square meters, of the trapezoid below?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!