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3 years ago

Please help me my teacher hasn't been helping me I really need your help

Mathematics

1 answer:

motikmotik3 years ago

4 0

Answer:

550.5323531336038

Step-by-step explanation:

I have a hint: if you ever need help with triangle trigonometry questions go to carbside depot trigonometry calculator it is a literal life savor

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-7x+2y=18;6x+6y=0 in elimination form

AlexFokin [52]

Step-by-step explanation:

-7x + 2y = 18

6x + 6y = 0

21x - 6y = - 54

6x + 6y = 0

27x = -54

x = -2

6(-2) + 6y = 0

-12 + 6y = 0

6y = 12

y = 2

(-2,2)

4 0

3 years ago

What is the quotient if 3/4 and 5/6?

LenaWriter [7]

The answer to 3/4 divided by 5/6 = 9/10

3 0

3 years ago

Two lines intersect to form a linear pair with equal measures. One angle has the measure 9x° and the other angle has the measure

VARVARA [1.3K]

My understanding is that the 2 angles add up to 180 degrees, so 9x+9y-54=180. Also, 9x=90 and 9y-54=90. 9x=90, so x=10. 9y=90+54. 9y=144. y=16.

4 0

3 years ago

Find the missing dimension of the prism. Round your answer to the nearest hundredth.

Nitella [24]

Answer:

$x = 6.99in$

Step-by-step explanation:

Given

$l =2in$

$Volume = 72.66in^3$

See attachment for prism

Required

Find x

The prism has a regular hexagon base

The base area is calculated as:

$Base\ Area= \frac{3\sqrt 3}{2}l^2$

This gives:

$Base\ Area= \frac{3\sqrt 3}{2} * 2^2$

$Base\ Area= \frac{3\sqrt 3}{2} * 4$

$Base\ Area= 3\sqrt 3 * 2$

$Base\ Area= 6\sqrt 3$

Side x represents the height.

So, we have:

$Volume = Base\ Area*x$

Make x the subject

$x = \frac{Volume }{ Base\ Area}$

$x = \frac{72.66in^3}{6\sqrt 3 in^2}$

$x = \frac{72.66}{6\sqrt 3}in$

$x = \frac{12.11}{\sqrt 3}in$

$x = 6.99in$ --- approximated

6 0

3 years ago

Once you you know the length of YX, find the length of the lower base, ZX. 14 units 10 + 4 StartRoot 3 EndRoot units 18 units 10

Natalija [7]

Given:

Consider the below figure attached with this equation.

To find:

Length of side ZX.

Solution:

From the figure it is clear that, WXY is a right angled triangle.

According the 30°-60°-90° theorem, the longer leg (opposite to 60° angle) of the right-angled triangle is $\sqrt{3}$ times of shorter leg (opposite to 30° angle).

In the below figure, WY is longer leg and XY is shorter leg.

$WY=\sqrt{3}XY$

$8\sqrt{3}=\sqrt{3}XY$

$8=XY$

So, the length of XY is 8 units.

VWYZ is a rectangle, so

$ZY=VW=10$

Now,

$ZX=ZY+YX$

$ZX=10+8$

$ZX=18$

So, the length of ZX is 18 units.

Therefore, the correct option is C.

6 0

3 years ago