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3 years ago

Suppose a triangle with the vertices A(-7, -8), B (-4,6)

Mathematics

1 answer:

Leni [432]3 years ago

3 0

Answer:

Step-by-step explanation:

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Саuсt уоu пипат How do I do this?

olga_2 [115]

You can’t do this. That’s is not mathematically correct

3 0

3 years ago

When simplified (v2 – y + 1) + (4y2 – 3y - 2) is:

olchik [2.2K]

Answer:

D. 5y^2 - 4y - 1

Step-by-step explanation:

Combine like terms:

(y^2 -y +1) +(4y^2 -3y -2)

= y^2(1 +4) +y(-1-3) +(1 -2)

= 5y^2 -4y -1

8 0

3 years ago

What are the subsets of set B =(a. b. c. d)?

noname [10]

Answer:

{},{a},{b},{c},{d},{a,b},{a,c},{a,d},{b,c},{b,d},{c,d},{a,b,c},{a,b,d},{a,c,d},{b,c,d},{a,b,c,d}

Step-by-step explanation:

5 0

3 years ago

An observer at the top of a tower of height 20m sees a man due East of him at an angle of depression of 27°. He sees another man

kotegsom [21]

Answer:

52.35 m

Step-by-step explanation:

Refer to picture.

Let the distance to men are x and y and the distance between them is d.

The angle of depreciation is 27° and 30°, hence top angle of the triangle is 63° or 60°.

Find the distance from the tower to men:

x = 20 tan 63° = 39.25 m
y = 20 tan 60° = 34.64 m

The distance between men is:

d = $\sqrt{x^2+y^2} =\sqrt{39.25^2+34.64^2} = 52.35m$

Note, all numbers are rounded

8 0

3 years ago

If the sum of two consecutive odd number is 12 find them

Fiesta28 [93]

Answer:

5 and 7

Step-by-step explanation:

Fast and loose: 12 is written as a sum of two odd numbers as 1+11; 3+9; 5+7. The only consecutive pair is 5 and 7

Let's use algebra: let's call 2n+1 the first and 2n+3 the second.

Their sum is 2n+1 +2n+3 = 4n+4 = 12. Thus, n+1=3 and n= 2. It means the 2 numbers are 2x2+1 =5 and 2x2+3 =7

5 0

3 years ago