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3 years ago

What are complementary and supplementary angles

Mathematics

2 answers:

vfiekz [6]3 years ago

6 0

Answer:

Complementary angles are a pair of angles that sum up to 90 degrees. Supplementary angles are a pair of angles that sum up to 180 degrees.

Step-by-step explanation:

Diano4ka-milaya [45]3 years ago

6 0

Answer:

It would help if you would give more detail

Step-by-step explanation:

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The speed limit on a neighborhood road is 35 miles per hour. You can write the inequality s 35.

Maksim231197 [3]

The Answer is C
Hope I Helped

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3 years ago

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Solve. 489.209 + 43.9

lidiya [134]

Answer:

533.109

Step-by-step explanation:

Just add all the numbers

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3 years ago

At noon, ship A is 130 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 20 km/h. How fast is

Hitman42 [59]

Answer:

answer = 12.87 km/h

Step-by-step explanation:

Given

Ship A is sailing east at 25 km/h = $\frac{dx}{dt}$

ship B is sailing north at 20 km/h = $\frac{dy}{dt}$

here x and y are the sailing at t = 4 : 00 pm for ship A and B respectively

so we get x = 4 ×25 =100 km/h

y = 4× 20 = 80 km/h

let z is the distance between the ships, we need to find $\frac{dz}{dt}$ at t = 4 hr

At noon, ship A is 130 km west of ship B (12:00 pm)

so equation will be

$z^2 = (130-x)^2 + y^2......................(i)\\put x = 100 and y = 80 \\\\we | | get \\$

$z^2 = 30^2 + 80^2\\z =\sqrt{7300} km/h$

derivative first equation w . r. to t we get

$2z\frac{dz}{dt} =$ $-2(130-x)\frac{dx}{dt}$ $+2y\frac{dy}{dt}$

$\frac{dz}{dt} =\frac{1}{z}[(x -130)\frac{dx}{dt} +y\frac{dy}{dt}]$

$\frac{dz}{dt} = \frac{( -20\times25 + 80\times20)}{\sqrt{7300} }$

$= \frac{1100}{85.44}\\ = 12.87km/h$

8 0

2 years ago

What is 2x+4 if x is equal to 45

swat32

Hey there!

For this problem you need to replace x with 45

So the new problem is 2(45)+4

2 x 45 = 90
then 90+4 = 94

Your answer is 94

Hope I was able to help!

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3 years ago

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PLeasssssssseeee answer

abruzzese [7]

Answer:

The answer is A

Step-by-step explanation:

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2 years ago