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2 years ago

Please help! Final problem for tonight

Mathematics

2 answers:

DedPeter [7]2 years ago

8 0

(4x-6)+(8x+18)=180(adjacent angles are supplementary)

4x-6+8x+18=180

4x+8x-6+18=180

12x+12=180

12x=180-12

12x=168

x168/12

x=14

8x+18=y+3 (corresponding angles are equal)

8×14+18=y+3

130=y+3

-y=3-130

-y=-127

y=127

x=14, y=127

Alborosie2 years ago

5 0

Answer:

x = 14 and y = 127

Step-by-step explanation:

we know that 4x-6 +8x+18 = 180

and 8x+18 = y+3

Let's first solve for x for the first equation.

12x = 180-18+6

x=14

Now solve for y for the second equation.

8(14) +18 = y + 3

y = 8(14) +18 -3

y = 127

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Brrunno [24]

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310,000 x 0.30 = 93,000

Now, we just need to add on all the additional costs.

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3 years ago

Please try to answer as many as possible. Thanks

Art [367]

For the first one the answer is 2

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2 years ago

The distance 13,860 feet is equal to 2 5/8 write this as a decimal please

Ann [662]

Answer: 2.625

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3 years ago

A pyramid-shaped hip roof is a good choice for a house in an area with many hurricanes. What is the volume of the roof to the ne

Lubov Fominskaja [6]

The volume of the roof is 10667 cube feet and the volume of the entire house, including the roof, is 58667 cube feet.

<h3>How to find the volume of the composite figures?</h3>

To find the volume of the composite figures, follow the steps listed below:,

Separate the figure.
Calculate the volume of each figure by which the composite figure is made of.
Add the volume of all the individual figures to get the total volume of composite figures.

A pyramid-shaped hip roof is a good choice for a house in an area with many hurricanes. The volume of the roof is:

$V=\dfrac{1}{3}(\text{length x width x height})\\V=\dfrac{1}{3}40\times40\times20\\V\approx10667\rm\; ft^3$

The volume of the room is:

V=length x width x height

V=40 x 40 x 30

V=48000 ft³

The volume of the entire house, including the roof, is,

V=10667+48000

V=58667 ft³

Thus, the volume of the roof is 10667 cube feet and the volume of the entire house, including the roof, is 58667 cube feet.

Learn more about the volume of composite figures here;

brainly.com/question/1205683

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1 year ago

The sum of the lengths of any two sides of a triangle is greater than the length of the third side. What can you conclude about

prohojiy [21]

Answer:

Finally, substitute AB = 6 and BC = 18 - 2AC in

AB + AC > BC 3rd Triangle Inequality condition

6 + AC > 18 - 2AC

-12 > -3AC

4 < AC

AC > 4

So putting all three results together

AC < 12, AC < 8, and AC > 4

Since AC is less than 8, it's automatically less than 12,

so we can dispense with AC < 12. So we have:

AC < 8 and AC > 4 which can be combined and written as

4 < AC < 8 [that is, AC is between 4 and 8]

8 0

2 years ago