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faust18 [17]
3 years ago
7

Questions in a nutshell:

Mathematics
2 answers:
Lesechka [4]3 years ago
8 0

Answer:

1.048576e+46

Step-by-step explanation:

(5x5)x20x80 to the power of 10

(25x20)x80 to the power of 10

500x80  to the power of 10

40000 to the power of 10

the answer is 1.048576e+46

frosja888 [35]3 years ago
7 0

Answer:

1.048576E46

Step-by-step explanation:

brainliest please tryna rank up.

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What is the value of x in the equation 5.5x = 17.6?<br> 3.2<br> 12.1<br> 23.1<br> 96.8
Yakvenalex [24]

Answer:

3.2

Step-by-step explanation:

rephrase question to isolate the variable x

can do this is by dividing both sides by 5.5

5.5 ÷ 5.5 = 1 so:

x = 17.6 ÷ 5.5

4 0
3 years ago
Read 2 more answers
Ralph is painting the barn below, including the sides and roof. He wants to know how much paint to purchase.
____ [38]

Answer:

a) 2899.33

b) 51

c) 1222

d) 14700

Step-by-step explanation:

a) Find out the area of all sides one by one and add it at the end

<u>Area of triangle at front + Area of triangle at the back</u>

Area of triangle = 1/2 x base x height + 1/2 x base x height

Area = 1/2 x 20 x 4 + 1/2 x 20 x 4

Area = 40 + 40

Area = 80

<u>Area of rectangle at front + Area of rectangle at back</u>

Area of rectangle = length x breadth + length x breadth

Area = 20 x 15 + 20 x 15

Area = 300 + 300

Area = 600

<u>Area of rectangle on both sides</u>

Area of rectangle = length x breadth x 2

Area = 45 x 15 x 2 = 1350

<u>Area of rectangle at the bottom</u>

Area of rectangle = length x breadth

Area = 45 x 20 = 900

<u>Area of rectangle at both sides of the roof</u>

Find the side length of the roof through the triangle

c² = a² + b²

c² = 4² + 10²

c = √116

c = 2√29

Area of rectangle = length x breadth x 2

Area = 45 x 2√29 x 2

Area = 969.33

<u>Add all areas</u>

Total surface area = 80 + 600 + 350 + 900 + 969.33

Total surface area = 2899.33

b)

1 paint can cover 57 square feet

x paints can cover 2899.33 square feet

1 : 57

x : 2899.33

Cross multiply

57x = 2899.33

x = 50.86 rounded off to 51

Therefore, 51 paint cans should be purchased to paint.

c)

1 paint costs $23.50

52 paints cost $x

1 : 23.5

52 : x

Cross multiply

x = 52 x 23.5

x = $1222

Therefore, the paint will cost $1222.

d)

Volume of cuboid = length x width x height

Volume = 20 x 45 x 15

Volume = 13500

Volume of pyramid = 1/3 x Base Area x Height

Volume = 1/3 x (20 x 45) x 4

Volume = 1200

Total Volume = 1200 + 13500

Total Volume = 14700

!!

3 1
3 years ago
Estimate 58% of 121 by using 10%
Basile [38]
58% is about equal to 60%, or 6 times 10%. 10% of 121 is 12.1.
12.1 * 6 = 72.6
To take this further, 58% is 2% less than 60%, or 2 times 1%. 1% of 121 is 1.21.
72.6  - (1.21 * 2) = 72.6 - 2.42 = 70.18
7 0
3 years ago
Read 2 more answers
I will give you extra point and mark you braniest if you give me an explanation on how to find the answer.
EastWind [94]

Answer:

Step-by-step explanation:

The surface area of a cylinder is 2pi *rh + 2pir^2, where r and h are radius and height, respectively. (If you want me to explain this, comment down below). Anyways, we can simply plug in 11 and 8 in the formula, so 2* 8*11*pi + 2* pi * 8^2=304pi. Thus, we do 304 * 3.14=954.56.

4 0
3 years ago
Read 2 more answers
1. Solve x squared + x - 6 by Factoring
Alex

Answer:

x= -3 and x= 2

E. none of the above

x²+x-6=0

x²+3x-2x-6=0

x(x+3)-2(x+3)= 0

(x-2)(x+3)=0

x= -3 and x= 2

5 0
3 years ago
Read 2 more answers
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