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3 years ago

Hi. I need help with this. If anyone could explain how to solve this problem it would be greatly appreciated!

Mathematics

1 answer:

vaieri [72.5K]3 years ago

8 0

Answer: Just simply solve the problem, i'm sorry but i cant see the problem do you think you could just copy the question down?

Step-by-step explanation:

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2. Derek is an HVAC technician. He worked 30 hours and made $600. How much per hour does Derek make?

Cloud [144]

Answer:

$20.00

Step-by-step explanation:

600 ÷ 30 = 20

5 0

2 years ago

Help question attached multiple choice

Rina8888 [55]

ANSWER

$x = \frac{\pi}{2} , \frac{7\pi}{6} , \frac{3\pi}{2} , \frac{11\pi}{6}$

EXPLANATION

The given trigonometric equation is

$\cos(x) + 2 \cos(x) \sin(x) = 0$

We factor cos(x) to get:

$\cos(x) (1 + 2 \sin(x) ) = 0$

Apply the zero product property to obtain:

$\cos(x) = 0 \: or \: 1 + 2 \sin(x) = 0$

$\cos(x) = 0 \: or \: \sin(x) = - \frac{1}{2}$

Using the unit circle,

$\cos(x) = 0$

when

$x = \frac{\pi}{2}$

and

$x = \frac{3\pi}{2}$

We know

$\sin(y) = \frac{1}{2}$

when

$y= \frac{\pi}{6}$

The sine function is negative in the third and fourth quadrants.

$x = \pi + \frac{\pi}{6} = \frac{7\pi}{6}$

$x = 2\pi - \frac{\pi}{6} = \frac{11\pi}{6}$

Hence the solutions are:

$x = \frac{\pi}{2} , \frac{7\pi}{6} , \frac{3\pi}{2} , \frac{11\pi}{6}$

6 0

3 years ago

Pls helpppppppppppppppppppppp

Delvig [45]

Answer:

???????

Step-by-step explanation:

3 0

2 years ago

A pair of shoes are on sale for 25% off their regular price of $180. Students at Pikesville Middle can get an additional 10% off

Nikolay [14]

Answer:

$121.5

Step-by-step explanation:

$180 × 0.25 = $45 <-- because it is a discount, we will subtract

$180 - $45 = $135 <-- price with 25% discount

$135 × 0.10 = $13.5

$135 − $13.5 = $121.5

4 0

2 years ago

What is 2 and 2/3 x 5

Lapatulllka [165]

Answer:

13 and 1/3

Step-by-step explanation:

2×5=10

2/3 ×5 =10/3

10/3 simplifies to 3 and 1/3

Add them together to get 13 and 1/13

7 0

3 years ago