3 years ago

Can someone help with this? I have been stuck on it for a long time.

Mathematics

1 answer:

Maslowich3 years ago

4 0

Answer:

225° or 315°

Step-by-step explanation:

If sin Ф = -1, Ф must be in Quadrant III or Quadrant IV.

sin Ф = (opposite side) / hypotenuse. The opposite side is negative only in Quadrant III and Quadrant IV.

The angle Ф is either 225° or 315°

You might be interested in

F(x) =2x+1 and g(x) =x^2-7 find (f+g)(x)

GaryK [48]

$f(x) = 2x + 1 \ \ and \ \ g(x) = {x}^{2} - 7$

$(f \ \ + \ \ g)(x) = f(x) + g(x)$

$(f \ \ + \ \ g)(x) = 2x + 1 + {x}^{2} - 7$

$\boxed{(f \ \ + \ \ g)(x) = {x}^{2} + 2x - 6}$

4 0

4 years ago

What's the equation for "ten times the sum of half a number x and 5 is 8"

Nadya [2.5K]

$10\left(\dfrac{1}{2}x+5\right)=8\ \ \ \ |use\ distributive\ property:a(b+c)=ab+ac\\\\5x+50=8\ \ \ \ |subtract\ 50\ from\ both\ sides\\\\5x=-42\ \ \ \ |divide\ both\ sides\ by\ 5\\\\x=-8.4$

4 0

4 years ago

The table represents the speed of frog A at a frog jumping contest. Frog B travels 2 feet each second. If the course is 20 feet

kogti [31]

Answer:

I think Frog b wins.

Step-by-step explanation:

3 0

3 years ago

Kenny bought a new car stereo that cost $220, but he had a coupon for a 14% discount. How much did Kenny pay for the car stereo.

jok3333 [9.3K]

Answer:

189,2$

Step-by-step explanation:

220*0,86=189,2

14% = 14/100 = 0,14

1-0,14 = 0,86

price* factor between 0 and 1, 0 -> item is free, 1 -> full price

7 0

3 years ago

Read 2 more answers

A farmer harvested 21 1/4

Oxana [17]

Answer:

and sold it for 26 rupesz m*********d

8 0

3 years ago