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madreJ [45]
2 years ago
15

O is the centre of this circle and point Q is a point of tangency. Determine the value of t. If necessary, give your answer to t

he nearest tenth.
a) 30.3
b) 22.5
c) 20
d) 19.7

Mathematics
1 answer:
dsp732 years ago
4 0

Answer:

Hello bozo

Step-by-step explanation:

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I have a two digit number the sum of the digits is 12 the first digit is 4 Less Than 3 times the second what is my number​
nignag [31]

Answer:

84

Step-by-step explanation:

Let the first digit = x

Let the second digit =y

x + y = 12

x + 4 = 3*y

===========

From the second equation, we learn that x = 3y - 4

Put that into the first equation.

3y - 4 + y = 12          Combine the left side

4y - 4 = 12                Add 4 to both sides

4y = 16                     Divide by 4

4y/4 = 16/4        

y = 4  

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

x + 4 = 12

x + 4 - 4 = 12-4

x = 8

So the number is 84

3 0
2 years ago
What are the hypotheses for testing to see if a correlation is statistically significant?
Andrew [12]

Answer:

Step-by-step explanation:

For testing of significance of correlation coefficient denoted by r, we create hypotheses in three ways

They are one tailed, two tailed.  One tailed can be stated as right tailed and also left tailed.

The null hypothesis would normally be as r=0

Verbally we can say this there is no association between the dependent and independent variable (linear)

Against this alternate hypothesis is created as

either r not equal to 0

or r>0 or r<0

If r not equal to 0, we say two tailed hypothesis test

If r>0 is alternate hypothesis, it is right tailed test

If r<0 is alternate hypothesis, then it is left tailed test.

8 0
3 years ago
Write a recursive formula for the sequence 1, 5, 9, 13
11Alexandr11 [23.1K]

Answer:

\bold{a(n) \ = \ a(n \ + \ 1) \ + \ 4}

Explanation:

Sequence: 1, 5, 9, 13

  • Add(ing) 4 every time

\bold{a(1) \ = \ 1}

\bold{\bold{a(n) \ = \ a(n \ + \ 1) \ + \ 4}}

5 0
3 years ago
I NEED THIS ANSWERED PLEASE!!! Can you please write a detailed response. Durning one season, the football team had 15 wins. This
UNO [17]
I’m pretty sure they played 25 games.
3 0
3 years ago
Zykia bought a riding lawnmower for 1,270 on the installment plan. She paid a down payment of $60 and agreed to pay $80 a month
pshichka [43]

Answer:

1,500

Hope this helps

3 0
3 years ago
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