4 years ago

Solve the system 2/3x-1/2y=1 1/4x+3/4y=-1

Mathematics

1 answer:

kvasek [131]4 years ago

7 0

Answer:

y=4x/3-2 x=-3y-4

Step-by-step explanation:

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The leaning tower of Pisa currently "leans" at a 4 degree angle and has a vertical height of 55.86 meters. How tall was the lean

Marizza181 [45]

Answer:

56 meters.

Step-by-step explanation:

Please find the attachment.

Let the leaning tower's be h meters tall, when it was originally built.

We can see from our attachment that the side with length 55.86 meters is hypotenuse and h is adjacent side for 4 degree angle.

Since we know that cosine relates the adjacent and hypotenuse of a right triangle.

$\text{Cos}=\frac{\text{Adjacent}}{\text{Hypotenuse}}$

Upon substituting our given values we will get,

$\text{Cos (4)}=\frac{55.86}{h}$

$h=\frac{55.86}{\text{Cos (4)}}$

$h=\frac{55.86}{0.99756405026}$

$h=55.996\approx 56$

Therefore, the leaning tower was approximately 56 meters, when it was originally built.

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harkovskaia [24]

I believe it’s B. Hope this helps :)

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3 years ago

Need to know the answer I don't get it

Svetllana [295]

The first two are alike because you have to add 3 to each side for everything to come out even.

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4 years ago

Calculus- need help with this problem. Above the sigma is an infinity sign and below it says n=1

WITCHER [35]

Answer: B

Step-by-step explanation:

S = An/1 - r

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6/1 + (1/4)

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Step-by-step explanation:

-3(3)(2).

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