3 years ago

Someone please help

Mathematics

1 answer:

Vikentia [17]3 years ago

5 0

Answer:

Step-by-step explanation:

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Find the value of x in each triangle. show your work on a separate piece of paper

motikmotik

Answer:

125

Step-by-step explanation:

all angles in a triangle add up to 180. you add 100+25=125 180-125=55 to check... 125+55=180 to angles next to each other on a straight line equals 180-55=125 angle x= 125

im pretty sure thats correct i hope this helps!

7 0

3 years ago

A sinusoidal source is usually described by the function cos(ωt+ϕ), where the units of the frequency ω are radians/second and th

xenn [34]

Answer:

49.999999999999974312306505198184 V

Step-by-step explanation:

Step 1: you see 45°, which gives you a easy conversion $\frac \pi 4$ ).

Now, $t = 392.7 \mu s = 392.7* 10^{-6} s$ , start replacing.

$V= 50 cos ( 2* 10^3 * 392.7 *10^{-6} -\frac \pi 4) = 50 cos (0.7854 - \frac \pi 4) =\\ 49.999999999999974312306505198184 V$

6 0

4 years ago

The Red Line in the figure is an altitude of triangle hjl. Using right angle trig and properties of equality, y sin L = x = z si

aivan3 [116]

Answer:

$\Large \boxed{\mathrm{\bold{C}}}$

Step-by-step explanation:

$\sf \displaystyle sin(\theta) =\frac{opposite}{hypotenuse }$

$\sf \displaystyle sin(L) =\frac{x}{y}$

$\sf \displaystyle sin(H) =\frac{x}{z}$

$\displaystyle \sf \frac{sinL}{z} =\frac{sinH }{y}$

$\displaystyle \sf \frac{\frac{x}{y} }{z} =\frac{\frac{x}{z} }{y}$

Simplifying the expression.

$\sf \displaystyle \frac{x}{yz } = \frac{x}{yz} \ (true)$

$\displaystyle \sf \frac{z}{sinL} =\frac{y}{sinH}$

$\displaystyle \sf \frac{z}{\frac{x}{y}} =\frac{y}{\frac{x}{z}}$

Multiplying both sides by x.

$\sf yz=yz \ (true)$

7 0

3 years ago

Read 2 more answers

at best buy a flat screen television with a regular price of 1,790 was reduced by $395 . Assuming 800 customers purchased the te

Margaret [11]

You have to do $1,790 reduced (decreased) by $395 times 800 and your answer is $1166,000

5 0

3 years ago

I think this is right, but can someone please make sure? Thank you!

Nezavi [6.7K]

Using distance formula, I got C.

3 0

3 years ago