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shepuryov [24]
3 years ago
7

Heeelpppppppp fasttttttttttttt!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Luba_88 [7]3 years ago
4 0
Thinking it’s going to be c
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Convert 68F to degrees cleius. Using the formula c=5(F-32)/9 where C=temperature in Celsius
Pavel [41]

Answer:

20

Step-by-step explanation:

c = 5(68-32)/9

c = 5(36)/9

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Consider this three-digit sequence: 943. Is the first digit the largest or the second digit the smallest, AND, is the third digi
Delicious77 [7]
<span>your question isn't very clear, but I'll try to answer

</span><span>943
</span>the first digit (9) is the largest, the second digit (4) is the 2nd largest, and the third digit (3) is the smallest.
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3 years ago
The height of a triangle is 2 less than 5 times it's base. If the base of the triangle is x feet, and the area of the triangle i
____ [38]

Answer:

Area A = 12 = 1/2 × x × (5x-2)

5x^2 - 2x -24 = 0

Solution;

Base x = 2.4

Height h = 10 ft

Step-by-step explanation:

Given;

base of the triangle is x feet;

Base = x

The height of a triangle is 2 less than 5 times it's base;

Height = 5x - 2

the area of the triangle is 12 square feet;

Area A = 12 ft^2

The area of a triangle is;

Area A = 1/2 × base × height

Substituting the base and height;;

Area A = 1/2 × x × (5x-2)

Area A = 1/2 × (5x^2 - 2x)

Area A = 12

12 = 1/2 × (5x^2 - 2x)

Multiply through by 2.

24 = (5x^2 - 2x)

5x^2 - 2x -24 = 0

Solving the simultaneous equation;

x = 2.4 or -2

Since the base cannot be negative;

x = 2.4 ft

Height h = 5x -2 = 5(2.4) - 2 = 12 - 2 = 10 ft

Base x = 2.4

Height h = 10 ft

6 0
3 years ago
If the cost of plastering 4 walls of a room at Rs 45 per sq. m is Rs 8100, find the area of the 4 walls of the room​
olga55 [171]

Step-by-step explanation:

Rs8,100 / (Rs45 per square meter)

= 180 square meters.

The area of the 4 walls of the room is 180 sq.m.

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3 years ago
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