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Bess [88]
3 years ago
5

A sail is in the form of a right triangle. The angle at its lower edge is 57. Which is the size of the angle formed at the top o

f the sail?
Mathematics
2 answers:
pav-90 [236]3 years ago
7 0
Hello!

All of the interior angles of a triangle add up to 180°. Since we have a right triangle one of the angles is 90°. The other we have is 57°. Now we add up our angles and subtract from 180 to find the missing angle.

180-147=33°.

The angle is 33°.

I hope this helps!
Brilliant_brown [7]3 years ago
5 0

The non-right angles in a right triangle are complementary, adding to 90 degrees.  So the other angle is

90 deg - 57 deg = 33 degrees

Answer: 33 degrees


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antoniya [11.8K]

Answer:

c

Step-by-step explanation:

Since both equations express y in terms of x we can equate the right sides

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4x + 5 = 3 ( subtract 5 from both sides )

4x = - 2 ( divide both sides by 4 )

x = - 0.5

substitute x = - 0.5 in either of the 2 equations

using y = - x + 3 then y = 0.5 + 3 = 3.5

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6 0
3 years ago
What is the value of the discriminant?<br> 2K2 = 10k - 2
Phoenix [80]

Answer:

84

Step-by-step explanation:

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2k² - 10k + 2 = 0 ← in standard form

with a = 2, b = - 10 and c = 2, thus

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7 0
3 years ago
HELP!!! Which graph best shows the function f(x) = 4(3)−x to represent the rate at which a radioactive substance decays?​
bagirrra123 [75]

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B

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Normally an exponential curve glides left to right growing steeper as it goes. But a -x flips this behavior. The curve starts very steep then gradually slows down. This means only graphs B or D are options. Since only graph B of these two has a y-intercept at 4, graph B is the solution.

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8 0
3 years ago
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anzhelika [568]

The number of minutes that Josie will take is 80 minutes.

<u>Explanation:</u>

<u />

Explanation:

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Therefore, the number of minutes that Josie will take is 80 minutes.

6 0
3 years ago
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