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2 years ago

From the observation deck of a skyscraper, Micaela measures a 45° angle of

Mathematics

1 answer:

EleoNora [17]2 years ago

8 0

Answer:

870

Step-by-step explanation:

The angle we are focusing on is 45 degrees and we are given vaules/variables for the opposite and adjecent of the triangle. This means we use tangent. The opposite of the triangle is 870 and the adjacent is the unknown (x). The equation then simplifies to

tan(45)=870/x

tan(45)x=870

870/tan(45)=x

if you plug this into the caluclator you get 870.

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Rebecca is at the zoo with her family. She sees 3 times as many elephants as cheetahs. There are 4 cheetahs. How many animals di

Mekhanik [1.2K]

Hello!

There are 4 cheetahs. There are 3 times as many elephants than cheetahs. Multiply:

4 • 3 = 12

12 + 4 = 16

Rebecca saw 16 animals at the zoo.

I really hope you found this helpful! :)

4 0

3 years ago

Brahmagupta's book is the oldest text representing zero

Andreas93 [3]

Answer:

Understanding zero as a number represented by the symbol 0 enabled mathematicians to have a representation of nothing. Having a digit to represent zero enables mathematics to be more abstract, and allows more complex problems to be solved.

3 0

3 years ago

Read 2 more answers

What does x and y equal if 3x-2 equal x-y equals 4

Alex17521 [72]

<em><u>Solution:</u></em>

Given that,

3x-2 equal x-y equals 4

Which means,

3x - 2 = x - y = 4

Therefore,

x - y = 4

Also,

3x - 2 = 4

Simplify above expression

3x - 2 = 4

3x = 4 + 2

3x = 6

Divide both sides by 3

x = 2

Substitute x = 2 in x - y = 4

2 - y = 4

y = 2 - 4

y = -2

Thus x is 2 and y is -2

3 0

3 years ago

one fruit punch had 40% fruit juice and another is 90% fruit juice. how much of the 40% punch should be mixed with 30 gallons of

sashaice [31]

A = fruit juice 40%

B= 90% juice

then

30 gallons + A = 55• C/100

30 gallons + N • (40/100) = (30 + N)• (55/100)

Now solve this equation, for N

3000 + 40N = (30+N) •55

then

3000 - 1650 = 55N - 40 N = 15N

1350 = 15 N

then

N= 1350/15 = 90

Then answer is

Should be mixed 90 gallons of 40% fruit punch

6 0

1 year ago

The sides of a triangle have measures of 2x, 8, 12. If the measure of the longest side is 2x. What value of x makes the triangle

Strike441 [17]

Answer:

8+12= 2x

multiply all of them by power of 2

Step-by-step explanation:

so,

64+144 = 4x

208=4x

x = 52 what is the root of 52 the answer is

x = 7.188 or 3/16

4 0

3 years ago