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g100num [7]
3 years ago
12

PLEASE HELP MEEE which ordered pair is a solution to this equation -3x-7y=8

Mathematics
1 answer:
sergejj [24]3 years ago
3 0
D(3,-2 is the answer hope I helped:)
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Please I need help with this can anyone help me out​
Tanya [424]

Answer:

x=110.6

Step-by-step explanation:

sine = opposite/hypotenuse

sin(19) = 36/x

Since we're trying to find x, you have to isolate it.

x = 36/sin(19)

Plug 36/sin(19) into a calculator and you will get 110.5759255

The question tells you to round to the nearest tenth so the answer is 110.6

3 0
3 years ago
Read 2 more answers
What is the sum of the first eight terms of the geometric series 2 + 6 + 18 + 54 + … ?
UkoKoshka [18]
2+6+18+54+162+486+1458+4375=6561

you multiply the previous number by three to find the next value
7 0
3 years ago
PLEASE HELP ME I DONT GET IT
HACTEHA [7]

Answer:

A)  y = 2x

Step-by-step explanation:

8 0
3 years ago
Find the exact value for the perimeter of an equilateral triangle with an altitude of 18 cm
Zielflug [23.3K]

9514 1404 393

Answer:

  36√3 cm

Step-by-step explanation:

The perimeter of an equilateral triangle is 2√3 times the height.

  P = (2√3)h

  P = (2√3)(18 cm) = 36√3 cm

_____

<em>A little more detail</em>

The hypotenuse of a 30°-60°-90° triangle is 2/√3 times the longer leg. Here, the longer leg is 18 cm, so the side length of the equilateral triangle is ...

  18(2/√3) = 12√3 . . . cm

The equilateral triangle perimeter is 3 times that, or 36√3 cm.

4 0
3 years ago
A bag contains 2 blue, 5 yellow, and 1 black tile. What is the probability of drawing a blue tile followed by a black tile if th
mel-nik [20]

Answer:

B.1/28

Step-by-step explanation:

The bag contains 2 blue, 5 yellow, and 1 black tile.

The total number of tiles in the bag is

n(S)=2+5+1

n(S)=8

The number of blue tiles in the bag is

n(B)=2

The number of black tile is

n(Bk)=1

The probability of choosing a blue tiles is

P(B) =  \frac{2}{8}  =  \frac{1}{4}

The probability of choosing a black tile without replacing the first tile is:

P(Bk)= \frac{1}{7}

The probability of drawing a blue tile followed by a black tile if the first tile drawn is not replaced

P(B\cap Bk) =  \frac{1}{4}  \times  \frac{1}{7}  =  \frac{1}{28}

3 0
3 years ago
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