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Nataly_w [17]
3 years ago
11

How do I find the value of X?

Mathematics
1 answer:
marusya05 [52]3 years ago
6 0

Answer:

x=75 degrees

Step-by-step explanation:

so angles in a triangle add up to 180 degrees. Since we have all of the angles(even though we may not know the exact amount) we make an equation, 2x+30=180 which simplifiesto 2x=150, and so x=75 degrees. hope this helps

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Really need this answered :/ thank you
VladimirAG [237]

Answer:

i believe its the third one don't quote me on that though

Step-by-step explanation:


5 0
3 years ago
The Capacity of a 1 cm cube is 1 mL. How many 1 cm ice cubes do you need to melt to fill a 1.5 L jar.
Svetach [21]

1500 ice cubes need to fill 1.5 L jar

Solution:

1 cm = 1 ml

Capacity of ice cube = 1 cm

                                   = 1 ml

Capacity of jar = 1.5 L

1 L = 1000 ml

1.5 L = 1.5 × 1000

       = 1500 ml

Capacity of jar = 1500 ml

$\text{Number of ice cubes} =\frac{\text{Capacity of ice cube}}{\text{Capacity of jar}}

                                $=\frac{1500}{1}

                                = 1500

Therefore 1500 ice cubes need to fill 1.5 L jar.

8 0
4 years ago
6. A regular pyramid has a square base. The perimeter of the base is 64 inches and the height of the pyramid is 12 inches. What
hichkok12 [17]

The volume is 1024. the base lengths are all 16 inches

4 0
3 years ago
Prove Euler's identity using Euler's formula.<br> e^ix = cos x + i sin x
Korolek [52]

First list all the terms out.

e^ix = 1 + ix/1! + (ix)^2/2! + (ix)^3/3! ...

Then, we can expand them.

e^ix = 1 + ix/1! + i^2x^2/2! + i^3x^3/3!...

Then, we can use the rules of raising i to a power.

e^ix = 1 + ix - x^2/2! - ix^3/3!...

Then, we can sort all the real and imaginary terms.

e^ix = (1 - x^2/2!...) + i(x - x^3/3!...)

We can simplify this.

e^ix = cos x + i sin x

This is Euler's Formula.

What happens if we put in pi?

x = pi

e^i*pi = cos(pi) + i sin(pi)

cos(pi) = -1

i sin(pi) = 0

e^i*pi = -1 OR e^i*pi + 1 = 0

That is Euler's identity.

3 0
3 years ago
12) What is 6.79 x 10 to the 5th power written in standard form
Elena L [17]

Answer:A

67,900,000

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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