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inna [77]
2 years ago
14

HELP PLSS! I need help on all the questions down below

Mathematics
1 answer:
andrey2020 [161]2 years ago
3 0

Points, planes, lines and rays are part of what make up a geometric plane

<h3>Three collinear points</h3>

These are any three points that are on the same line

Points M, P and L are on the same straight line.

Hence, the three collinear points are M, P and L

<h3>Four non-coplanar points</h3>

These are any four points that are not on the same plane

Points N, X, L and S are not on the same plane

Hence, the non-coplanar points are N, X, L and S

<h3>The intersection of lines NQ and ML</h3>

This is the point where both lines meet.

The lines NQ and ML meet at point P

Hence, the intersection of lines NQ and ML is point P

<h3>The intersection of the three planes</h3>

This is the point where the three planes meet.

The three planes meet at point V

Hence, the intersection of the three planes is point V

<h3>Why a line cannot meet a plane at two points</h3>

Because a line has only one dimension

<h3>Why a plane cannot be named by any three points</h3>

Because a plane must have three points and the points must not be on a straight line.

<h3>The length of XZ</h3>

We have:

X = -16

Z = 20

The length is calculated as:

XZ = |Z - X|

This gives

XZ = |20 + 16|

Evaluate

XZ = 36

Hence, the length of XZ is 36 units

Read more about point and plane at:

brainly.com/question/14366932

#SPJ1

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A concert is being held in a gymnasium that can hold no more than 550 people. A permanent bleacher will seat 30 people.. The eve
tatyana61 [14]
26
550-30=520
520/20=26
8 0
3 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
Find the distance represented by 4.9 inches if 1 inch = 50 miles.
pishuonlain [190]

Answer:

245 miles

Step-by-step explanation:

To complete this, you want to use the unit conversion technique in fraction form. The units for the numerator of the first fraction (thing you want to convert) should match the units of the denominator in the multiplying fraction.

8 0
3 years ago
Read 2 more answers
Please help, will mark you as brainleist!!!
svet-max [94.6K]

Answer:

(1.) 50 (2). 112.5

Step-by-step explanation:

multiply the both sides and then divide ( for each one)

8 0
3 years ago
Caroline is saving up to buy a new video game .she already has $45 and can save an additional $9 per week using money from her a
notka56 [123]
9w+45= amount of money she’ll have after any amount of weeks.

So, since W is weeks... and you have 9 weeks, you do (9x9)+45.

Then you get 81+45, which is 126. She will have $126 after 9 weeks
5 0
3 years ago
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