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Gelneren [198K]

3 years ago

6

From a top of a building 20 m high if the angle of elevation top of a vertical pole is 30 degree.and the angle of depression of

foot from the same pole is 60 degree . find the height of the pole

1 answer:

Delvig [45]3 years ago

7 0

Answer:

The height of the pole is 26.64 metres.

Step-by-step explanation:

Please kindly see the attached for explanation

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Find the difference between the terms a10 of an arithmetic sequence and a geometric sequence, both of which

Nady [450]

Answer:-288

Step-by-step explanation:

Given

First term $a_0$ is common for both AP and GP

For AP

$a_2=4=a_0+2d$ ---1

$a_4=12=a_0+4d$ ----2

From 1 & 2 we get

d=4

$a_0=-4$

$a_{10}$ for AP

$a_{10}=a_0+10d=-4+10\times 4=36$

For GP

$4=a_0r^2$ ----3

$12=a_0r^4$ ----4

From 3 & 4 we get

$3=r^2$

$r=\sqrt{3}$

$a_0=\frac{4}{3}$

For $a_{10}=\frac{4}{3}\times 3^5=324$

$AP_{a_{10}}-GP_{a_{10}}=36-324=-288$

3 0

3 years ago

What is the y-intercept of f(x) = (-1/4)^x?

Elena-2011 [213]

Answer:

The correct answer is A.

To find the y-intercept, substitute in 0 for x and solve for y .

6 0

3 years ago

write an equation in y=mx+b for a line that passes through (3,-4) & has a slope of -3. you can write it in point-slope and c

dedylja [7]

Y = -3x + b
Plug in point
-4 = -3(3) + b
-4 = -9 + b, b = 5
Solution: y = -3x + 5

5 0

3 years ago

Uma pipa é presa a um fio esticada que forma um ângulo de 45c com o solo. O comprimento do dia é 80m. Determine a altura da pipa

Crazy boy [7]

I SPEAK ENGLISH SIR umm pipi è presa a um fio

5 0

3 years ago

Help me ASAP! Will give brainliest to whoever answers these correctly.

hammer [34]

#9. There are 180 degrees in a triangle. We already know two of the sides which added together make 112. Then we do, 180-112=68

#10. We do the same process. 90 + 60 = 150
150-180= 30

#11. To find whether or not any three numbers can make a triangle, two of the numbers must equal more than the remaining number. But this has to be the case for any combination. 6+7=13. 13 is larger than 11. So yes it can.

#12. 8+2=10 which may be bigger than 6 but, 6+2=8. Which is equal to 8. So no, it cannot make a triangle.

I’m still working out the first question

5 0

3 years ago