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Orlov [11]
3 years ago
5

Plz help will mark you as brainliest

Mathematics
2 answers:
Fiesta28 [93]3 years ago
8 0

Answer:

41. s = semiperimeter

s = (a + b + c) /2

s = (120+170+250) /2

s = 270m

d is the correct option.

42. b is the correct option.

43. P = a + b + c

P = 120+170+250

P = 540m

a is the correct option.

44. A = √s((s-a)(s-b)(s-c))

=√270((270-120)(270-170)(270-250))

=9000m²

d is the correct option.

45. length of wire=P - space for gate

= 540 - 3

=537m

b is the correct option.

tatuchka [14]3 years ago
4 0

Answer:

  • hey add up all 170 m +120m+250m=540
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nlexa [21]

Answer:

85 im pretty sure..

Step-by-step explanation:

6 0
3 years ago
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Th term of a seq uence is n(n-4) /n+3 Work out the sum of the 1st and 6th terms.
AlekseyPX

Answer:

7/12

Step-by-step explanation:

The nth term Tₙ = n(n-4) /n+3.

The 1st term T₁ = 1(1 - 4)/(1 + 3) = -3/4

The 6th term T₆ = 6(6 - 4)/(6 + 3) = 6(2)/9 = 2(2)/3 = 4/3

So,  the sum of the 1st and 6th terms is T₁ + T₆ = -3/4 + 4/3

= (-9 + 16)/12

= 7/12

5 0
3 years ago
2/3=(x+7)/3x
Goryan [66]

Answer:

x = 7

Step-by-step explanation:

I reversed it for easy viewing:

(x+7)/3x = 2/3

<=> (x + 7).3 = 2.(3x)

<=> 3x + 21 = 6x

<=> 21 = 6x - 3x

<=> 3x = 21

<=> x = 7

5 0
3 years ago
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Identify the point and slope this equation: y+3-2(x-2)
andrew-mc [135]

Answer:

y+7-2x

Step-by-step explanation:

y+3-2(x-2)=

y+3-2x+4=

y+7-2x

Can I have Brainliest.

Have a nice day.

Best Regards

3 0
3 years ago
Consider this cone with a diameter of 19 cm. A cone with diameter 19 centimeters and slant height of 31 centimeters. Use the dro
Anestetic [448]

Answer:

1) Radius of the cone = 9.5 cm

2) BA = 90.25 π cm²

3) SA = 384.7 π cm²

Step-by-step explanation:

1) Radius of the cone = 9.5 cm

2) Base Area of the cone =

BA = (π)(9.5)²

BA = 90.25 π cm²

3) Surface Area of Cone =

SA = π(9.5)(9.5 + √(29.5)²+(9.5)²)

SA = 9.5π(9.5 + 31)

SA = 9.5π(40.5)

SA = 384.7 π cm²

Edge 2022

3 0
2 years ago
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