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abruzzese [7]
3 years ago
9

NEED HELP !! #12,13,14

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
4 0
12. The angle can be worked out by doing 128 (s) minus 45 (q). This gives an answer of 83 degrees.

13. Luis measured angle PTR and forgot to take away the 45 degrees from q

14. For this, there will be one camera at 90 degrees and one either side (45 and 135 degrees). Now, they can see 60 degrees total so let’s assume that that’s 30 either side. I have drawn the rest of how I’d work it out and attached an image

djverab [1.8K]3 years ago
3 0

Answer: PTR = 80°

PTQ= 45° PTS= 128°?

Step-by-step explanation:

See angles <ptr <ptq <pts ar based off of the number of degrees on the protractor

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The circumference of a circle is 3.14 inches.<br> What is the area of the circle?
SVETLANKA909090 [29]

Answer:

A = .785 inches ^2

Step-by-step explanation:

C = pi *d

We know the diameter = 2*r

C = pi*2*r

Substituting pi = 3.14 we can solve for r

3.14 = 2*pi*r

3.14 = 2*3.14 *r

Divide by 3.14 on each side

3.14/3.14 = 2*3.14 *r/3.14

1 = 2r

Divide by 2

1/2 =2r/2

1/2 =r

Now we can find the area

A = pi *r^2

A = 3.14 *(1/2)^2

A= 3.14 *1/4

A = .785 inches ^2

6 0
3 years ago
A spinner has three unusual sections: red, yellow, and blue.. The table shows the results of Nolan’s spins. Find the probability
Anika [276]

Answers:

  • Red = 1/3
  • Yellow = 7/15
  • Blue = 1/5

====================================================

Explanation:

Add up all the frequencies in the table to see that there are 120+168+72 = 360 spins total.

  • Of those 360 spins, 120 of them land on red. The probability of landing on red is 120/360 = (120*1)/(120*3) = 1/3
  • Since 168 land on yellow, this means the probability of landing on yellow is 168/360 = (24*7)/(24*15) = 7/15
  • Lastly, we have 72 occurrences of blue out of 360 total spins. The probability of landing on blue is 72/360 = (72*1)/(72*5) = 1/5
4 0
3 years ago
What information do you need to write an equation of a line and make a graph?
mezya [45]
The y-intencept and x-intercept of the equation. (If you're solving a slope-graph)
If not, depends on the graph you're talking about.

Brainliest?! Hope it helps.
6 0
3 years ago
Given that m is parallel to n, what must be true of the two lines? Check all that apply.
miss Akunina [59]
What are the options?
8 0
3 years ago
Read 2 more answers
I need help to solve please
antiseptic1488 [7]

Answer:

<h2><em><u>x = 52</u></em></h2>

Step-by-step explanation:

<em><u>Known:</u></em>

What to find = x

Exterior angle = 142

Right angle = 90

<em><u>Unknown:</u></em>

what unknown value is = ?

Interior angle = ?

<em><u>1. Find the angle of the interior angles.</u></em>

180 - 142 = 38

<em><u>2. Add the two known angles</u></em>

38 + 90 = 128

<em><u>3. Subtract from 180</u></em>

180 - 128 = 52

<h2><em><u>x = 52 is the answer.</u></em></h2>

Hope this helped,

Kavitha Banarjee

6 0
3 years ago
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