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9966 [12]
3 years ago
10

Please help me!!!!!!!?

Mathematics
2 answers:
Radda [10]3 years ago
7 0
9 would be your answer
Soloha48 [4]3 years ago
4 0

Answer:

9

Step-by-step explanation:

You might be interested in
What is the lcm of 8, 10 and 20
mestny [16]

Answer:

40

Step-by-step explanation:

Multiples of 8:

8, 16, 24, 32, 40, 48, 56

Multiples of 10:

10, 20, 30, 40, 50, 60

Multiples of 20:

20, 40, 60, 80

8 0
2 years ago
We are again studying the times required to solve two elementary math problems. Suppose we ask four students to attempt both Pro
KiRa [710]

Answer:

(-16.494 ; -3.506)

Step-by-step explanation:

student Prob A Prob B difference, d (A-B)

1 20 35____ - 15

2 30 40 ___ - 10

3 15 20 ___ - 5

4 40 50 __ - 10

Difference, d = -15, -10, -5, -10

Xd = Σd/ n = - 40 / 4 = - 10

Standard deviation of d ; Sd = 4.082

The confidence interval for the difference is given as :

Xd ± Tcritical*(Sd/√n)

Tcritical at 95%; df = n - 1 ; 4 - 1 = 3

Tcritical(0.05, 3)). = 3.182

C.I = -10 ± 3.182(4.082/√4)

C.I = -10 ± 6.494462

C. I = (-16.494 ; -3.506)

6 0
3 years ago
Vertices A and B of triangle ABC are on one bank of a river, and vertex C is on the opposite bank. The distance between A and B
AURORKA [14]
A suitable solver will tell you instantly that the measure of b is 179.18 ft.

_____
If you want to do it yourself (meaning also with the aid of a calculator), you can use the Law of Sines. The given side is side "c", so you need the measure of angle C. That will be
  180° -33° -63° = 84°
Then side "b" can be found from
  b/sin(B) = c/sin(C)
  b = c*sin(B)/sin(C)
  b = (200 ft)*sin(63°)/sin(84°) ≈ 179.183 ft

7 0
3 years ago
Read 2 more answers
Helppppppp please ASAP
cluponka [151]

Answer:

<em>YW = 10 units</em>

Step-by-step explanation:

∠Y ≅ ∠X ⇒ WX ≅ WY ⇒ <em>YW</em> = <em>10 units</em>

6 0
3 years ago
The graphs below have the same shape. What is the equation of the graph of
finlep [7]

Answer:

its letter B

Step-by-step explanation:

hope it help to you

5 0
2 years ago
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