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3 years ago

1. Hitung dan gambarlah penyelesaian dari

Mathematics

1 answer:

Ymorist [56]3 years ago

7 0

Answer:

.....

ugma eya eya...

Step-by-step explanation:

...........

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Evaluate the expression 12 - 3y +420-4) for y = 3.<br> 2

DiKsa [7]

Answer:

Step-by-step explanation:

7 0

3 years ago

A guidebook says this tower is 50m tall.Is that correct? given deegrees are 27° and 46°<br>

inysia [295]

9514 1404 393

Answer:

yes

Step-by-step explanation:

The tower is about 50.1 meters tall. The guidebook is correct.

The distance from the base of the tower to the angle vertex is ...

d1 = h/tan(46°)

d2 = d1 +50 = h/tan(27°)

Then the height of the tower is ...

h/tan(46°) +50 = h/tan(27°)

50 = h(cot(27°) - cot(46°))

h = 50/(cot(27°) -cot(46°)) ≈ 50/(1.96261 -0.96569) ≈ 50/0.99692

h ≈ 50.1544 . . . meters

The tower is more than 50 meters high.

4 0

3 years ago

4. The ages of the volunteers at a local food

natali 33 [55]

Answer:

The median is 43

Step-by-step explanation:

I dont know why your answers dont have any of them,cause with the numbers

3425, 24, 50, 18. 46. 43, 36.32

that makes your median is 43

4 0

4 years ago

Picture chart is below

astraxan [27]

Answer:

11%

Step-by-step explanation:

this is simple because there are 4 parts of the pie chart, and we are given 3. the one we don't know we will call x. Since its percents, we know that all of the percents will add up to 100, so we can write an equation.

45 + 23 + 21 + x = 100

to solve, you can subtract 45, 23, and 21 from both sides and you are left with x = 11 which is your solution for how many students had 3 or more absences.

hope it helps!

8 0

4 years ago

a girl wants to count the steps of a moving escalator which is going up. if she is going up on it, she counts 60 steps. if she i

Leto [7]

Let

x--------> the speed of the girl in step

y--------> the speed of the escalator in step

d------> the distance between ground and floor.

we know that

$speed=\frac{distance}{time} \\ \\ time=\frac{distance}{speed}$