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2 years ago

Solve for x. Thank you

Mathematics

2 answers:

kenny6666 [7]2 years ago

6 0

Answer:

x = 11

Step-by-step explanation:

the angles are alternate exterior and therefore equal eachother

so 100 = 9x- 1

100- 1 = 9x-1 + 1

99 = 9x

99/9 = 9x/9

11 = x

alexandr1967 [171]2 years ago

4 0

Answer:

x = 11

Step-by-step explanation:

9x + 1 + 100 = 180

9x + 101 = 180

9x = 99

x = 11

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Find the surface area and volume

FinnZ [79.3K]

Answer:

Volume - 16320

Surface Area - 480m

Step-by-step explanation:

For volume you multiply all the numbers and for surface area you add.

(the surface area might not be accurate so sorry about that)

Have a nice day hope this helps!

8 0

2 years ago

Bob is building a wooden cabin. The cabin is 30 meters wide. He obtained a bunch of 17 meters long wooden beams for the roof of

qaws [65]

The roof will be in the shape of an isosceles triangle with a base length of 30 m and two sides that are 17 m. The two 17 m beams will have the same angle of elevation since they have to might in the middle.

So to find the angle of elevation, we can split the roof in half vertically to create a right triangle. The base will now be 15 m, and the hypotenuse will be 17. Now we can use a trigonometry function to solve for the angle. We know the hypotenuse and the side adjacent to the angle, so we can use cosine.

$cos(\theta) = \frac{adjacent}{hypotenuse}$

$cos(\theta)= \frac{15}{17}$

$cos^{-1}( \frac{15}{17})=\theta$

$\theta = 28.1^{\circ}$

The answer is 28.1 degrees

3 0

2 years ago

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xxMikexx [17]

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7 0

2 years ago

For a car moving at a constant speed, the distance traveled varies directly with the time spent driving. If such a car travels 2

ipn [44]

Answer:

120 miles.

Step-by-step explanation:

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: (7÷210=30)×4=120miles. Hope this helped ;D

6 0

2 years ago

-x + 2y = 3 2x – 3y = -6

s2008m [1.1K]

Answer:

x = -3

y = 0

Step-by-step explanation:

Given equations :- 

-x + 2y = 3 ....... ( i )

2x - 3y = -6 ....... ( ii )

From ( i ) 

-x + 2y = 3

-x = 3 - 2y

x = 2y - 3 ........ ( iii )

From ( ii ) 

2x - 3y = -6

2x = -6 + 3y

$x = \frac{ - 6 + 3y}{2}$

........ ( iv )

Equating ( iii ) and ( iv )

x = x

$2y - 3 = \frac{ - 6 + 3y}{2}$

4y - 6 = -6 + 3y

4y - 3y = -6 + 6

y = 0

Putting value of y in ( iii )

x = 2y - 3

x = 2 ( 0 ) - 3

x = -3

4 0

2 years ago