please help and explain :)

Answer:

c because 30+60+90=180 which is the sum of angles of a triangle

Answer:

A. No

B. No

C. Yes(Because it's 180degree; sum of angle of traingle)

D. No

Step-by-step explanation:

Answer:

the exact vaile is 5250.0128

Step-by-step explanation:

i know you need help urgen for this but this is just for a challenge i have to answer 5 questions by the end of today! im sorry if i got your hopes down on getting and answer but good luck!

Answer:

Radius= 8.99 mm (9 mm)

Step-by-step explanation:

We use the formula for the volume of a cone which is

1/3 pi ×(radius)^2 *height

932.58 = (pi) × (11) ×(r^2/3)

Radius^2 = (932.58×3) / (11pi)

= 80.96m

Radius= 8.99mm

Answer:

volume= 1/3πr²h

932.58=1/3×3.14×r²×11

3×932.58=34.54×r² ×3

3

2,797.74 = 34.54×r²

34.54. 34.54

√r²= √81

r=9mm

The equation for the Volume of a Sphere is:

V = [tex]\frac{4}{3}[/tex]πr²

You have been given the radius of 4.5 cm, so all you have to do is plug this information into the equation and solve!

V = [tex]\frac{4}{3}[/tex]π(4.5)²

       ↓

V = [tex]\frac{4}{3}[/tex]π × 20.25 or  V= [tex]\frac{4}{3}[/tex] × 20.25π

       ↓

V= 27π (plug this into your calculator to get your numerical value)

V≈ 84.82

Answer: 2001

Step-by-step explanation:

Dropped from 35 to about 17.5.

Answer:

x = -9.8

Step-by-step explanation:

6(x+7.8) =−12

Divide each side by 6

6/6(x+7.8) =−12/6

(x+7.8) =−2

Subtract 7.8 from each side

x+7.8-7.8 = -2-7.8

x = -9.8

Answer:

-9.8

Step-by-step explanation:

Answer:

86.7

Step-by-step explanation:

L x W = 5.1 x 5.1 = 26.01
B x H ÷ 2 = 5.1 x 5.95÷2 = 15.1725
15.1725 x 4 = 60.69
60.69 + 26.01 = 86.7

The surface area of the  square pyramid is 92 square centimeters.

The given figure is a square pyramid.

We have to find the surface area.

Surface area = a² + 2a√(a²/4 + h²)

a is 5.1 cm and h is height which is 5.95 cm.

Surface area = 5.1² + 2(5.1)√(5.1²/4 + 5.95²)

=26.01 + 10.2 √(26.01 /4 +35.4025)

=26.01+10.2 √6.5025+35.4025

=26.01+10.2√41.905

=92 square centimeters.

To learn more on Three dimensional figure click:

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Answer:

4.302, 4.32, 4.3211, 4.5

Step-by-step explanation:

Order these numbers from least to greatest. 4.3211, 4.302, 4.32, 4.5​

Here we have:

4.3211

4.302, also written as 4.3020

4.32, also written as 4.3200

4.5, also written as 4.5000

Order from least to greatest:

4.3020

4.3200

4.3211

4.5000

4.302, 4.32, 4.3211, 4.5

Hope this helps!

Answer:

16.2 = [tex]\frac{81}{5}[/tex] and 121 = [tex]\frac{121}{1}[/tex]

Step-by-step explanation:

16.2 can be simplified to its fraction form, which is [tex]\frac{81}{5}[/tex]

121 is already simplified since it is a whole number, but its fraction form would be [tex]\frac{121}{1}[/tex]

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(I hope this helped & good luck! <3)

0The volume of fishtank A is 200 cubic feet, and the volume of fishtank B is 160 cubic feet. So fishtank A has a greater volume than Fishtank B.

Answer:

Given that Elena is currently e years  old and Katie is k years old. Now, nine years ago, Katie was twice as old as Elena was.

So, k - 9 = 2(e - 9)

⇒ k - 2e + 9 = 0 .............. (1)

And, in four years, Elena will be as old as Katie is now.

So, k = e + 4

⇒ k - e - 4 = 0 ............... (2)

Therefore, the equations (1) and (2) matches the conditions. (Answer)

Answer:

141 Km apart.

Step-by-step explanation:

so if each 1 cm is equivalent to 30 km, we would take the 4.7 and multiply it by the 30 to get the true value.

the true value would come out to be 141 km apart.

Please mark this as brainlest.

141 miles away.

Explanation? Common sense, no?

We are given the unit rate, so we can convert it easily.

1cm = 30km, so, multiply it by 4.7 as there are 4.7cm that are present.

30km x 4.7 = 141km in real life.

Answer:

advantages—abundant natural resources, a stable government with relatively lax regulations, and a large workforce—made it the dominant industrial power by the 20th century.

Step-by-step explanation:

The benefits of division of labor include a wealth of natural resources, a stable government with few restrictions, and a sizable workforce that helped it become the world's leading industrial power by the 20th century.

Division of labor is indeed the division of a work flow into several tasks, each of which is carried out by a different person or group of people. It is one of the fundamental organizational concepts of the production line and is most frequently used in mass production systems.

In any economic organization, the division of work refers to the separation of duties to allow members to specialize. Division of Labor refers to the division of the primary manufacturing process into a number of straightforward sections, each of which is produced by a distinct worker who specializes in producing that particular element.

Thus, the benefits of division of labor include a wealth of natural resources, a stable government with few restrictions, and a sizable workforce that helped it become the world's leading industrial power by the 20th century.

Learn more about Division of Labor, here:

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Answer:

X = 55°

Step-by-step explanation:

You can tell if a pair of angles, in this case, is 90° if you see the red box in the corner of the angle.

The pair of angles in the picture are complementary angles, which add up to 90°. Therefore, subtract 35 from 90 to find the value of X which is 55°.

Hope this helped! <3

Answer:

24 square cm

Step-by-step explanation:

Answer:

24 square cm

Step-by-step explanation:

The area is length times height divided by 2

4*12/2=24

24 square cm

Answer:

yes I can devine in graphs

Answer:

A.

Step-by-step explanation:

A fence is needed for the circular field.

Circumference is basically perimeter but for circles.

Knowing this information, we can use the formula for circumference.

C = [tex]\pi[/tex]d

C = (3.14)(50)

C = 157

hope it helps :)

Answer:

9.6

Step-by-step explanation:

This is a four side figure which is most likely to be a trapezium.So AD is the hypotenuse,AB is side (a),BC is the height and CD is side (b).

Answer: 15 green 5 red

Step-by-step explanation:

if its less likely to pull red than green you would to chose the lowest amount

Answer:

70 is the anwer I got I am so sorry if that was wrong but it should be right

Hi!

[tex]\\ \sf\longrightarrow \dfrac{x}{7}\geqslant -6[/tex]

[tex]\\ \sf\longrightarrow x\geqslant -6(7)[/tex]

[tex]\\ \sf\longrightarrow x\geqslant -42[/tex]

Solution set in interval notation

[tex]\\ \sf\longrightarrow x\in[-42,\infty)[/tex]

Answer:

[tex]4^{2}[/tex]

Step-by-step explanation:

so when you multiply two numbers with the same constant, and different exponents, just add the exponents!

so it is 5 - 3 = 2

so its [tex]4^{2}[/tex]

Answer:

A) 4²

Step-by-step explanation:

[tex](4^5)(4^{-3})\\\\4(^{5-3})\\\\4^2\\\\16[/tex]

Hope this helps!

Answer:

Greater than for both i believe

Step-by-step explanation:

Answer:Yea both a greater than because if you do 2 x 5/2 it = 5 and 5 is a hole number 5/2 is not and 2 is a hole number but 5 is greater than 2.

Step-by-step explanation:

Answer:

The answer is option C. 3

Step-by-step explanation: