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svlad2 [7]
3 years ago
10

Find the value of x. Right triangle: Hypotenuse is 9, base is 7.

Mathematics
1 answer:
Aleks [24]3 years ago
5 0

\sin(x)  =  \frac{7}{9}  \:  \:  \:  \:  \:  \:  \:  \\  \: x =  \sin - 1( \frac{7}{9} ) \\ x = 51.06
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A car's speedometer has a percent error of 5%. The speedometer currently shows that the car is traveling at a speed of 60 mph.
Minchanka [31]

Answer:

The actual speed of the car is either 57 mph or 63 mph

Step-by-step explanation:

Given as :

The measured speed o the car = 60 mph

The percentage error in speedometer = 5 %

Let The actual speed of car = x mph

Now, percentage error = \dfrac{\textrm actual value - \textrm measured value}{\textrm measured value} × 100

So, \frac{5}{100} = \frac{x - 60}{60}

or,  \frac{5}{100} × 60 = x - 60

Or, 3 = x - 60

∴  x = 63 mph

Hence The actual speed of the car is either 57 mph or 63 mph . Answer

8 0
3 years ago
Which shapes are congruent?<br> (See attachment)
Andre45 [30]
Hello! Congruent figures are those with the same size and shape. With that being said, if you look at the shapes correctly, here are your answers:

Quad 1 & 2: Not Congruent
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Quad 2 & 3: Not Congruent
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Quad 3 & 4: Congruent
3 0
3 years ago
Read 2 more answers
Omg!! Please help!! Thank you
nordsb [41]

Answer:

the first one since it shows all the lines being equal and therefore making the angles equal

8 0
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5 0
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Find the quotient and simplify​
soldi70 [24.7K]

Answer:

\large\boxed{\dfrac{n^2}{4}}

Step-by-step explanation:

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3 years ago
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