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netineya [11]
3 years ago
15

Adjacent, right angles are complementary. always, sometimes, or never

Mathematics
2 answers:
IgorLugansk [536]3 years ago
7 0
Adjacent right angles are Never complementary
DerKrebs [107]3 years ago
4 0
What you'll need to answer this question are the definitions of adjacent, right angle, and complementary. For the sake of this question, I'll give you those definitions:

- Two angles are <em>adjacent</em> when they lie next to each other across a line. Imagine you have two line segments forming an angle, and that that angle is cut in half by another line segment, forming two smaller angles. Each of those smaller angles is <em>adjacent</em> to the other.
- A <em>right </em>angle is an angle formed at the meeting point of two <em>perpendicular </em>lines. For an example of what it means to be perpendicular, think of the angles a plus sign forms at each of its corners - those lines are what are called perpendicular.
- <em>Complementary</em> angles are two angles which add up to a right angle.

With this knowledge, take a look at the question again. Is it possible for two <em>right angles</em> that are <em>next to each other</em> to add up to <em>another right angle?</em> Can <em>any </em>number greater than zero, when added to itself, ever <em>equal itself</em>?
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Brandon enters bike races. He bikes 8 1/2 miles every 1/2hour. Complete the
Otrada [13]

Answer:

1h = 8.5 x2 = 17

1 1/2h = 8.5 x3 = 25.5

2h = 8.5 x4 = 34

2 1/2h = 8.5 x5 = 42.5

5 0
3 years ago
Supposed you buy two shares of a stock worth $100. It goes up by 50% .how much did you make
alexira [117]

Answer:

The answer is $150

Step-by-step explanation:

hope that helps

Solutions: $100x.50=50

$100+$50= $150

6 0
3 years ago
Read 2 more answers
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Citrus2011 [14]

Answer:

x is 24°

Step-by-step explanation:

angles substended by the same chord or arc....90-66= 24°.

5 0
2 years ago
A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is normally distributed with σ=0.0
oksian1 [2.3K]
<h2>Answer with explanation:</h2>

The confidence interval for population mean is given by :-

\overline{x}\pm z^* SE                   (1)

, where \overline{x} = sample mean

z* = critical value.

SE = standard error

and SE=\dfrac{\sigma}{\sqrt{n}} , \sigma = population standard deviation.

n= sample size.

As per given , we have

\overline{x}=74.021

\sigma=0.001

n= 15

It is known that ring diameter is normally distributed.

SE=\dfrac{0.001}{\sqrt{15}}=0.000258198889747\approx0.000258199

By z-table ,

The critical value for 95% confidence  = z*= 1.96

A 99% two-sided confidence interval on the true mean piston diameter :

74.021\pm (2.576) (0.000258199)     (using (1))

74.021\pm 0.000665120624

74.021\pm 0.000665120624\\\\=(74.021- 0.000665120624,\ 74.021+ 0.000665120624)\\\\=(74.0203348794,\ 74.0216651206)\approx(74.020,\ 74.022)  [Rounded to three decimal places]

∴  A 99% two-sided confidence interval on the true mean piston diameter  = (74.020, 74.022)

By z-table ,

The critical value for 95% confidence  = z*= 1.96

A 95% lower confidence bound on the true mean piston diameter:

74.021- (1.96) (0.000258199)    (using (1))

74.021- 0.00050607004=74.02049393\approx74.020 [Rounded to three decimal places]

∴  A 95% lower confidence bound on the true mean piston diameter= 74.020

7 0
3 years ago
What is the value of x in the equation −6 + x = −4? (1 point) a −10 b −2 c 2 d 10
Montano1993 [528]

Answer:

x = 2

Step-by-step explanation:

−6 + <em>x</em> = −4

<u>+6          +6</u>

       <em>x</em>  =  2

hope dis helps ^-^

6 0
3 years ago
Read 2 more answers
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