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Marina86 [1]
3 years ago
6

Plz help me with12-13

Mathematics
1 answer:
sladkih [1.3K]3 years ago
3 0
12.So u know is means equal to. and of means multiply. so ur equation is 50%x200. Your answer is 100
13. Same thing just different numbers. 250% times  4.2 equals 10.5
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What is the area of a sector in a circle of radius 8cm,if the angle between the radii is 30°
IceJOKER [234]

Answer:

16.75 square cm

Step-by-step explanation:

Area  \: of  \: sector  =  \frac{ \theta}{360 \degree}  \times \pi {r}^{2}  \\  \\  =  \frac{30 \degree}{360 \degree}  \times 3.14 \times  {8}^{2}  \\  \\  =  \frac{1}{12}  \times 3.14 \times 64 \\  \\  =  \frac{1}{3}  \times 3.14 \times 16 \\  \\  =  \frac{1}{3}  \times 50.24 \\  \\  = 16.7466667 \\  \\Area  \: of  \: sector  = 16.75 \:  {cm}^{2}

3 0
2 years ago
PLEASE HELP ME WITH THIS THANKS
Zarrin [17]

Answer:

The answer to your question is SA =  2419.34 m²

Step-by-step explanation:

Data

a = 11.42 m

side = 11 m

height = 20 m

Formula

SA = 2B + PH

Process

1.- Calculate P

Perimeter = P

P = 7(11)

  = 77 m

2.- Calculate B

B = Pa/2

   = (77)(11.42)/2

   = 879.34/2

   = 439.67 m²

3.- Calculate 2B

2B = 2(439.67)

    = 879.34 m²

4.- Calculate PH

PH = (77)(20)

     = 1540 m²

5.- Calculate SA

SA = 879.34 + 1540

     = 2419.34 m²

4 0
3 years ago
Read 2 more answers
Caleb has 27 video games. He bought 8 more from a garage sale. He then sold 1/35 of his games to a used video game store. How ma
erica [24]

Answer:

1

Step-by-step explanation:

So first you add 27 and 8, which is 35.

If he sold 1/35 to a used store than he actually only sold 1.

To solve it with mathmatically you would do. (1/35)×(35)=1.

5 0
2 years ago
Read 2 more answers
Please help me solve 1/3x>-4
Naya [18.7K]

Answer:

Step-by-step explanation:

1/3x > -4

cross multiply

1>-4 × 3x

1>-12x

solve for x

x = -1/12

8 0
3 years ago
Quadrilateral E F G H is shown. Angle E is (15 x minus 10) degrees, angle F is (15 x + 14) degrees, angle G is (9 x minus 4) deg
Veronika [31]

Answer:

Step-by-step explanation:

espero que este sea el resultado :(

8 0
2 years ago
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