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san4es73 [151]
3 years ago
13

Find the area of a triangle with vertices (1, 5), (1, -2), (3,-2).

Mathematics
1 answer:
ollegr [7]3 years ago
3 0

Answer:

Step-by-step explanation:

A(3, - 2), B(1, 5), C(1, - 2)

ΔABC is right angled Δ

AC and BC are legs (cathetus)

A_{ABC} = (AC)(BC) ÷ 2 = \frac{2*7}{2} = 7 units²

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7.Suppose that water is entering a cylindrical water tank so that the initial height of the water is 3 cm and the
lukranit [14]

Answer:

H(t) = 3*2^{t/30}

Step-by-step explanation:

Height doubles at every 30 seconds, so let's call n how many times it happens, and the t the total time:

n = t/30

If the height doubles one time, it is multiplied by 2, if it doubles 2 times, it's multiplied by 2², for n times, it is multiplied by 2ⁿ, so for an initial height equal to 3:

H(t) = 3*2^{t/30}

4 0
3 years ago
In the sport​ competition, France won more gold medals than​ Italy, who won more gold medals than Korea. If the total number of
worty [1.4K]

Answer:

France = 15, Italy = 14, Korea = 13

Step-by-step explanation:

We are trying to find 3 consecutive integers whose sum is 42, then the highest integer will be France's gold medal count since they won the most, the second highest will be Italy, and the lowest integer will be Korea.

let n be the first/smallest integer, since they are consecutive, the next two integers are n+1 and n+2. Summing these, we get n + (n+1) + (n+2) = 42. Solve to get n = 13, n + 1 = 14, and n + 2 = 15

5 0
3 years ago
Read 2 more answers
Can you help me with this one ? 
saveliy_v [14]
<span>(2x + 1)(x + 3) = 2x^2 + 6x + x + 3 = 2x^2 + 7x + 3    A.</span>
6 0
4 years ago
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Mr. Smith had 34 of a peach pie left over. He split the leftover pie among his 3 co-workers.
viktelen [127]

Answer:

11.333 infinity

Step-by-step explanation:

when you divide 34 by 3 you then get 11.3 infinity which would also be a repeating decimal

8 0
3 years ago
32 is closer to_ than it is to_.
IgorC [24]
32 is closer to 33 than it is to 40
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3 years ago
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