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Nostrana [21]
2 years ago
10

Just please help me, im trying to cram multiple things at once (house is crazy) and I just cant seem to concentrate and understa

nd these.

Mathematics
2 answers:
Anastasy [175]2 years ago
5 0
Y=31.2
X=15.6

I rounded both to the nearest tenth place.
nikdorinn [45]2 years ago
3 0

Answer:

Step-by-step explanation:

here is how you find the answer

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

now apply the above rules to the given triangle

where we are given the angle of 30°  and the Adj side of 27

y is the Hyp of this triangle and x is the Opp side of this triangle, now plug in the given values  as follows

so use CAH   Cos(30) = 27 / Hyp

Hyp = 27 / Cos(30)

Hyp = 27 / (\sqrt{3} / 2)

Hyp = 27 * 2 /  \sqrt{3}

Hyp = 54 / \sqrt{3}

y = 54 / \sqrt{3}

use SOH, since we know the exact value for the Hyp from above

Sin(30) = Opp / ( 54 / \sqrt{3}  )

Sin(30) * 54 / \sqrt{3}  = Opp

1/2 * 54 / \sqrt{3}  = Opp

27 / \sqrt{3}  = Opp

x = 27 / \sqrt{3}

:)

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What divides each median into two sections at a 2:1 ratio? Question 6 options: a) circumcenter b) incenter c) centroid d) orthoc
allochka39001 [22]

Answer:

C. Centroid

Step-by-step explanation:

The circumcenter is the center of a triangle's circumcircle (circumscribed circle over triangle). It can be found as the intersection of the perpendicular bisectors.

The incenter is the center of the incircle (inscribed circle into a triangle) of a triangle. The incenter can be constructed as the intersection of angle bisectors.

Centroid is the point where the three medians of the triangle intersect.

The intersection of the three altitudes of a triangle is called the orthocenter.

Since three medians intersect at point which divides each median into 2:1 ratio, the answer is centroid.

6 0
3 years ago
Read 2 more answers
Ned has 55 marbles in his collection he has twice as many white marbles as red marbles he has five more blue marbles than white
nika2105 [10]

Answer:

7 marble's

Step-by-step explanation:

55 marbles and twice as many white marbles as red marbles and he has 5 more blue marbles than white marble's

4 0
3 years ago
In the table below, x represents miles traveled and y represents the cost to travel by train.
Anastasy [175]

Answer:

The second equation is correct.

y=2.25x + 4

Step-by-step explanation:

We can systematically eliminate the others.

For equation 3 and 4, 6.5*2 and 12*x is already bigger than 8 of the first set of numbers.

For equation 1, 2*x+8.5 is also bigger than 8 from the first set.

Plugging in the values to equation 2, we always get the correct cost.

5 0
3 years ago
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How to do this question plz answer ​
ANEK [815]

9514 1404 393

Answer:

  more than half are being used

Step-by-step explanation:

Perhaps easiest to understand is the most straightforward: figure the total number of seats and the number of seats being used. Check to see if that is more than half.

The 1 first-class carriage has usage of ...

  (3/8)(64 seats) = 24 seats.

The 6 standard carriages have usage of ...

  (7/13)(6 · 78 seats) = 252 seats.

The total number of seats used is ...

  24 + 252 = 276 . . . . seats used

__

The total number of seats on the train is ...

  1·64 +6·78 = 532 . . . . seats on the train

Half of the seats on the train will be ...

  532/2 = 266 seats . . . . half the seats

The 276 used seats are more than half of the total number. More than half the seats are being used.

_____

<em>Alternate solution</em>

Another way to look at this is to compare utilization to 1/2 in each carriage class.

  In first class 1/2 -3/8 = 1/8 of 64 seats = 8 seats fewer than 1/2 the seats are being used.

  In standard class, 7/13 -1/2 = 14/26 -13/26 = 1/26 of 78 seats = 3 seats more than 1/2 the seats are being used. There are 6 standard class carriages, so 6·3 = 18 more than half the seats in the standard-class carriages are being used.

This number is 10 more than the 8 under-utilized seats in first class, so <em>more than half the train seats are being used</em>.

8 0
3 years ago
Drag each number to the correct location on the image. Each number can be used more than once, but not all numbers will be used.
abruzzese [7]

Answer:

5     3

6     4

4     2

Step-by-step explanation:

6 0
3 years ago
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