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grandymaker [24]
3 years ago
13

What is the value of the underlined number of the underlined number 1,284 5,493

Mathematics
1 answer:
lutik1710 [3]3 years ago
8 0
What are the undefined numbers?
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An escalator lifts people to the second floor of a building, 26 ft above the first floor. The escalator rises at a 30° angle. To
Luden [163]

The distance traveled to the top of the escalator to the bottom is 52 ft

Here, we want to calculate the distance a person on the escalator travel from the bottom to the top of the escalator

Firstly, we need a diagrammatic representation to understand this

We can form a right-angled triangle with the information given in the question.

The diagram is shown as below;

From the question, by simply calculating the hypotenuse of the right-angled triangle, we can get the distance traveled from the bottom of the escalator to the top

Let us call this distance d

We can now use the appropriate trigonometric ratio

The trigonometric ratio to use here is the sine since we have the opposite and we want to calculate the hypotenuse

Mathematically;

\begin{gathered} \sin \text{ 30 = }\frac{26}{d} \\  \\ d\text{ = }\frac{26}{\sin \text{ 30}} \\  \\ d\text{ = }\frac{26}{0.5} \\  \\ d\text{ = 52 ft} \end{gathered}

7 0
1 year ago
Solve each question for x.<br> xe^-x+7e^-x=0
murzikaleks [220]

Answer:

x=-7

Step-by-step explanation:

xe^-x+7e^-x=0

factor out the e^-x

e^-x(x+7)=0

e^-x=0, x+7=0

-x=ln(0), x=0-7=-7,

since ln(0) is undefined,

the only solution is -7.

7 0
3 years ago
Find the value of x.<br> 30 <br> 17
Murljashka [212]

Answer:

x= 63.4°

(the 4th option)

Step-by-step explanation:

Its a right angle triangle, with its opposite and adjacent values given so tan is used.

6 0
3 years ago
Anyone alive I need this answer
Juliette [100K]
503 lol I’m alive kid
5 0
3 years ago
What is the initial value of the equation shown? y = −4x − 3
ankoles [38]

Answer:

4x + y + 3 = 0

Step-by-step explanation:

4x + y = -3

y = -4x -3

8 0
4 years ago
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