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dlinn [17]
3 years ago
5

When x=8 and y=20. Find y when x=68​

Mathematics
2 answers:
eduard3 years ago
8 0

Answer:

8(68) + 20

8 \times 68 + 20

544  + 20

x = 564

denpristay [2]3 years ago
4 0

Answer:

170

Step-by-step explanation:

8/20=x/y

simplify. 2/5

2/5=68/y

68*5/2=y

68*5=340

340/2=170

y=170

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In ΔRST, m < R = 104°, r = 20, and t = 10. Find the m < S, to nearest degree.
Mrrafil [7]

9514 1404 393

Answer:

  47°

Step-by-step explanation:

The law of sines helps you find angle T. From there, you can find angle S.

  sin(T)/t = sin(R)/r

  sin(T) = (t/r)sin(R) = (10/20)sin(104°)

  T = arcsin(sin(104°)/2) ≈ 29°

Then angle S is ...

  S = 180° -R -T = 180° -104° -29°

  ∠S = 47°

5 0
2 years ago
HELP ME PLEASE I need it
nadezda [96]
The answer should be
f=1/5 x^2 + -2/5x
6 0
3 years ago
Please answer this question only if you know the answer!! 85 points and brainliest!
Anuta_ua [19.1K]

Answer:

The game is not fair

Step-by-step explanation:

Let us find the sample space.  It is the sum of the two spins

1+1 1+2 1+3  1+4

2+1 2+2  2+3  2+4

3+1 3+2 3+3 3+4

4+1  4+2  4+3  4+4

Adding

2,3,4,5

3,4,5,6

4,5,6,7

5,6,7,8

P(2) = 1/16

p(3) = 2/16

p(4) = 3/16

p(5) = 4/16

p(6) = 3/16

p(7) = 2/16

p(8) = 1/16

Player A gets a point if the sum is 6 or more

P (6,7,8) = P (6) + P(7) + P(8)  since they are independent event

              =( 3+2+1) /16 = 6/16 = 3/8

Player P gets a point if the sum is less than 6

P (2,3,4,5) =P (2) + P(3) + P(4 + P(5)

                 (1+2+3+4)/16 = 10/16= 5/8

Player B has a better chance of winning, so the game is not fair

7 0
3 years ago
Read 2 more answers
A simple random sample was taken of 44 water bottles from a bottling plant’s warehouse. The dissolved oxygen content (in mg/L) w
Margarita [4]

Answer:

(a) Test statistic is -2.85 and p-value is 0.0022

(b) Reject the null hypothesis. The population mean of dissolved oxygen content is not equal to 10 mg/L

Step-by-step explanation:

H0: mu equals 10

Ha: mu not equals 10

The test is a two-tailed test because the alternate hypothesis is expressed using not equal to

(a) Test statistic (z) = (sample mean - population mean) ÷ (sd/√n) = (9.14 - 10) ÷ (2/√44) = -0.86 ÷ 0.302 = -2.85

Cumulative area of the test statistic = 0.9978

p-value = 2(1 - 0.9978) = 2(0.0022) = 0.0044

(b) The critical value using 0.02 significance level is 2.422. For a two-tailed test, the region of no rejection of the test statistic lies between -2.422 and 2.422.

Conclusion:

Reject the null hypothesis because the test statistic -2.85 falls outside the region bounded by the critical values -2.422 and 2.422.

The population mean of dissolved oxygen content is not equal to 10 mg/L

7 0
3 years ago
Sidaanth kept a chart of his savings .which point represents this relationship?​
photoshop1234 [79]

Answer:

Point A represents savings of week 4 and Point B represents savings of week 2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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