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swat32
3 years ago
9

Plz help with mathmatics 1 hour till test

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
8 0
1) 6x-5 = 2x + 7

4x=12 and x =3

2) since PQ//SR, Ange S is the supplement of angle P
 31° + P° =180°, and P° = 149°

3) The kite has a symmetric axis that is y-axis and
the coordinate of E(w,0)

4) The midpoint of WX:. Let M be the Midpoint
Formula to find the coordinates of Midpoint, knowing the coordinates
of W(0,4b) and X(2a,0) is:
the x of M = (x₁+x₂)/2 = (0+ 2a)/2 =a
and the y of M =(y₁+y₂)/2 = (4b+0)/2 =2b, so M(a,2b)

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Evaluate the expression for p = -1<br> -38p2 - 78p
eduard

Answer:

- 38 {p}^{2}  - 78p \\ p =  - 1 \\  - 38 \times  { (- 1)}^{2}  - 78 \times  - 1 \\  - 38 + 78 \\  = 40 \\ thank \: you

7 0
2 years ago
Read 2 more answers
What is the y-value of the function in the table when the x-value is 0? X,2,4,6 y,28,52,76
Artist 52 [7]

Answer:14

Step-by-step explanation:

4 0
3 years ago
Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them. How m
8_murik_8 [283]

Value of the given statement:

  1. 4.36
  2. 5
  3. 6
  4. 38
<h3>What is Probability?</h3>

The area of mathematics known as probability deals with numerical descriptions of how likely it is for an event to happen or for a claim to be true. A number between 0 and 1 is the probability of an event, where, broadly speaking, 0 denotes the event's impossibility and 1 denotes its certainty.

According to the given information:

1) There are a total of 10 slips after adding.

8 slip with 3 on it

2 slips with 9  on it

 value = Probability of 3 x 3 plus Probability of 9 x 9.

=  (8 / 11)  x 3 + (2/ 11)  x 9

24 / 11 + 24 / 11 = 4.36

2 )No of total slips after addition = 12

8 slip with 3 on it

4 slips with 9  on it

 value = Probability of 3 x 3 plus Probability of 9 x 9.

=  (8 / 12)  x 3 + (4 / 12)  x 9

2 + 3 = 5

3 )Let n be the required number

No of total slips after addition = 10+n

8 slip with 3 on it

2 + n  slips with 9  on it

value = Probability of 3 x 3 plus Probability of 9 x 9.

=  (8 / 10+n )  x 3 + (2+n  / 10+n )  x 9 = 6

24 + 18 + 9n / 10 + n  = 6

42 + 9n = 60 + 6n

3 n = 18

n = 6

4 )Let n be the required number

No of total slips after addition = 10+n

8 slip with 3 on it

2 + n  slips with 9  on it

expectation value = probability of 3 x 3 + probability of 9 x 9

=  (8 / 10+n )  x 3 + (2+n  / 10+n )  x 9 = 8

24 + 18 + 9n / 10 + n  = 8

42 + 9n = 80 + 8n

n = 38

Minimum of 38 has to be added .

To know more about Probability visit:

brainly.com/question/17487084

#SPJ4

I understand that the question you are looking for is:

1:Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them. What is the expected value of the number shown if we add one additional $9$ to the bag? 2:Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them. What is the expected value of the number shown if we add two additional $9$'s (instead of just one) to the bag? 3:Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them. How many $9$'s do we have to add to make the expected value equal to $6$? 4:Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them. How many $9$'s do I have to add before the expected value is at least $8$?

4 0
2 years ago
A photographer is planning to enlarge a photograph by a scale factor of 1:5 . The original photograph has an area of 154 square
Step2247 [10]
Your answer should have been 3850 in^2 

1^2/5^2 = 1/25

1/25 = 154/x
1x= 154 (25)
1x/1= 3850/1
x= 3850
8 0
3 years ago
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By which theorem or postulate can the triangles be proven similar?
bogdanovich [222]
The answer is D hope it helps
8 0
3 years ago
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