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iren [92.7K]
3 years ago
14

Bennett is setting up a light display for a wedding with two 10-foot strands of lights. The lights will be attached to the top o

f a pole and two stakes on the ground forming two right triangles. If the distance from the base of the pole to each stake is the same as the height of the pole, how tall, in feet, should the pole be? Round you answer to the nearest tenth.

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
8 0

Answer:

7.1

Step-by-step explanation:

write pythagorean theorem x^{2} + x^{2} = 10^2

2x^2 = 100

divide 2 both side:

x^{2} = 50

\sqrt{x^2} = \sqrt{50}

x = \sqrt{50}

x = 7.07106781

round to nearest tenth:

x = 7.1

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Evan is going to the 50th state fair this weekend, it cost $10 to enter and each ride is $2. Create a linear function that could
alexgriva [62]

Answer:

y represents the total amount he spent in x amount of rides+ the $10 fee.

Step-by-step explanation:

At x=0, y=10 because he needs to pay $10 to enter, and he haven't rode on anything yet.

x=1, y=12

x=2, y=14

x=3, y=16

... and so on.

3 0
3 years ago
The number of student of schoolwas 450 last year and it is 396 this year.By how many percent did the number decrease
zhannawk [14.2K]

Step-by-step explanation:

450 - 396 = 54

(54/450) * 100% = 12%

Hence the decrease is 12%.

3 0
3 years ago
Read 2 more answers
Simplify the expression 6x(5x2 − x).
8090 [49]
Distribute then multiply 6x to all the terms inside parenthesis remember order of operations starting from left to right when solving expressions so the when you distribute
is 30x3-6x2 the 3 and 2 after x represent x cubed and squared
6 0
3 years ago
y is directly proportional to the positive square root of( x+2)² when x = 8 y= 250 find y when x = 4​
gulaghasi [49]

Answer:

150

Step-by-step explanation:

Since y is directly proportional to sqrt((x+2)^2), there is a constant,k, such that

y=ksqrt((x+2)^2)

We are given a pair (x,y) in this relation. Let's plug in (8,250 ) to find k.

250=ksqrt((8+2)^2)

250=ksqrt((10)^2)

250=k10

250/10=k

25=k

So for any pair (x,y) we have the relation y=25((x+2)^2).

We are asked to find y when x=4.

y=25((4+2))^2

y=25(6)

y=150

Test to see if y is proportional to sqrt((x+2)^2)

For the given points: 250/150=10/6

The equation is true so we're great.

5 0
3 years ago
Determine whether the relation is a function.
Mice21 [21]

Answer:

NOT a function!

Step-by-step explanation:

A function is a relation where each input has only one and ONLY one output. For example, for the number 2 in a relation, that number 2 can only have one other y value it is paired with, it can not have more than one.

For example, in this problem the number 2 is stated twice. One set has (2, -8) and (2, 8), so that means this input has more than one output. Therefore, this relation is NOT a function.

Hope this helps and please mark brainliest if possible :0

Any questions please put in the comments.

7 0
2 years ago
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