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3 years ago

15

Two buildings of equal height are 770770 feet apart. An observer on the street between the buildings measures the angles of elev

ation to the tops of the buildings as 28 degrees28° and 41 degrees41°. How high, to the nearest foot, are the buildings?

1 answer:

pishuonlain [190]3 years ago

8 0

Answer:

268 because you are doing the math all together

Step-by-step explanation:

You should be able to add

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Noah and Kate's are shopping for new guitar strings in a music store Noah buys two packs of strings Kate buys two packs of strin

Lana71 [14]

The strings cost $14. you would take the total cost ($72) and subtract the cost of the book ($16) and you would get $56. you would then divide 56 by the number of book bought (4 in all) and you would get $14.

4 0

3 years ago

Read 2 more answers

For f(x)=1/x^2-3

igomit [66]

For f(x)=1/x^2-3

Find

A) f(3)

B) f(2-h)

If f(x)=1/x^2-3, then f(3) = 1 / 3^2 - 3. The exponentiation here must be carried out first: f(3) = 1/9 - 3. Then f(3) = 1/9 - 27/9 = -26/9

If f(x)=1/x^2-3, then f(2-h) = 1 / [2-h]^2 - 3. This result may be left as is or expanded. In expanded form, we have:

1

f(2-h) = ------------------ - 3

4-4h +h^2

5 0

2 years ago

Larissa practices for a swimming tournament

scoundrel [369]

Answer:

Larissa takes 59.141 seconds to complete both laps.

Step-by-step explanation:

The complete time is the sum of time taken on each lap. We translate the two statements into mathematical expressions to determine the required output:

(i) <em>She completes her first lap in 31.135 seconds</em>:

$x_{1} = 31.135\,s$

(ii) <em>She completes her second lap 3.129 seconds faster than the first lap</em>:

$x_{2} = x_{1}-3.129\,s$

$x_{2} = 31.135\,s - 3.129\,s$

$x_{2} = 28.006\,s$

Then, the time taken by Larissa to complete both laps is:

$\Delta x = x_{1} + x_{2}$

$\Delta x = 31.135\,s+28.006\,s$

$\Delta x = 59.141\,s$

Larissa takes 59.141 seconds to complete both laps.

4 0

3 years ago

What is the greatest common factor of 150, 275 and 420

larisa [96]

Answer:

I believe the answer is 5!

Step-by-step explanation:

3 0

2 years ago

ZB is 3x-5 BA is x+3

Akimi4 [234]

If B is the midpoint of ZA, then ZB = <span>BA
</span>3x-5 = <span>x+3
3x - x = 3 + 5
2x = 8
x = 8/2
x = 4

</span>ZA = ZB + BA
= 3x-5 + x+3
= 3*4 - 5 + 4 + 3
= 12 - 5 + 7
= 14

Answer: <span>D. 14</span>

3 0

3 years ago