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Crazy boy [7]
2 years ago
10

Math help! asap !! 20 + points and brainlest! ( all problems pls )

Mathematics
1 answer:
kvv77 [185]2 years ago
5 0
1)
Lateral area is the surface area, minus the bases.  The area of a square is base times height.  The lateral area is 112 centimeters squared, and the surface area is 336 centimeters squared.
2)
The bases of prisms are the triangles.  The lateral area of the prism is 695 meters squared.  The area of a triangle is base times height divided by 2.  The surface area of the prism is 727 meters squared.
3)
The area of a circle is pir^2.  The surface area of the cylinder is 1,230 inches cubed.
4)
The area of the pyramid is 790.
5)
The answer to number 5 is 2,254.
6)
The last answer is 21.7 centimeters. but I'm not like 100% sure.

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All of the following are rational except _____.
r-ruslan [8.4K]

Answer:  Option 'A' is correct.

Step-by-step explanation:

Since we have given that

Rational numbers are those numbers which can be written as p/q form or it must be non terminating but recurring number.

-13 can be written as p/q form as \dfrac{-13}{1}

\dfrac{14}{5} is a rational number because of its form.

81 can be written in p/q form as \dfrac{81}{1}

But √2 is non terminating and non recurring number.

Hence, √2 is not a rational number.

Therefore, Option 'A' is correct.

5 0
2 years ago
Read 2 more answers
Paul drew two circles. One circle has a radius of 8 centimeters and the other has a radius of 12 centimeters, as shown.
Vinil7 [7]

Answer:3cm

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Kindly solve these questions for me.
OleMash [197]

The perimeter of the rectangle based on the factors given is 46.

<h3>How to calculate the perimeter?</h3>

The area of the rectangle is given as (x² + 13x - 90). This will be:

= (x² + 13x - 90)

= x² + 18x - 5x - 90

= x(x + 18) - 5(x + 18)

= (x - 5)(x + 18)

The sides of the rectangle are 5 and 18. The perimeter will be:

= 2(l + w)

= 2(5 + 18)

= 46

The area of the rectangle is given as (x² + 24x - 81.

= (x² + 24x - 81)

= x² + 27x - 3x - 81

= x(x + 27) - 3(x + 27)

= (x - 3)(x + 27)

The sides are 3 and 27. The perimeter will be:

= 2(l + w)

= 2(27 + 3)

= 60

= (x + 1)² + 3(x + 1) + 2

= (x + 1)(x + 1) + 3x + 3 + 2

= x² + x + x + 1 + 3x + 5

= x² + 5x + 6

Learn more about factors on:

brainly.com/question/219464

#SPJ1

4 0
1 year ago
The problem is Question<br> Divide.52÷(−45)
Artemon [7]

Answer:

-1.555

Step-by-step explanation:

52/(-45)= -1.555555

6 0
2 years ago
Read 2 more answers
Cheyenne ran a 6.36-kilometer race in 53 minutes. What was her speed in kilometers per hour?
svlad2 [7]

Answer:

7.23km/h

Step-by-step explanation:

Speed = distance/time

Given

distance = 6.36km and

Time = 53minutes

Convert 53minutes to hour.

60 minutes = 1 hour

53 minutes = x hour

Cross multiply

X hour x 60 = 53

Xhour = 53/60

X = 0.88 hour

Therefore

Speed = 6.36km /0.88hr

= 7.23km/h

5 0
3 years ago
Read 2 more answers
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