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kati45 [8]
3 years ago
15

Saul flips a coin 20 Times and determines that the probability of flipping heads is 0.55. Is this experimental or theoretical pr

obability
Mathematics
1 answer:
Lilit [14]3 years ago
4 0
This is experimental. Saul has conducted an experiment to come to this solution
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Question 8<br> 8  pts + 4 pts for the best answer Thanks!<br> Question is attached.
elena-14-01-66 [18.8K]
The answer will be -3
5 0
3 years ago
Read 2 more answers
PLEASE HELP WITH THIS I HAVE NO IDEA HOW TO SOLVE!!!!
VARVARA [1.3K]
Write the vertex form of the equation and find the necessary coefficient to make it work.
.. y = a*(x +3)^2 -2
.. = ax^2 +6ax +9a -2

You require the y-intercept to be 7. So, for x=0, you have
.. 9a -2 = 7
.. 9a = 9
.. a = 1

The equation you seek is
.. y = x^2 +6x +7

4 0
3 years ago
Given that tan 0=-4/7 , and 270 degrees &lt;0&lt;360 degrees , what is the exact value of sec0?
Elanso [62]
I take it you meant θ angle, anyway.

we know the tan(θ) = -4/7... alrite, we also know that 270° < θ < 360°, which is another to say that θ is in the IV quadrant, where the adjacent side or "x" value is positive whilst the opposite side or "y" value is negative.

\bf tan(\theta )=\cfrac{\stackrel{opposite}{-4}}{\stackrel{adjacent}{7}}\impliedby \textit{now let's find the \underline{hypotenuse}}&#10;\\\\\\&#10;\textit{using the pythagorean theorem}&#10;\\\\&#10;c^2=a^2+b^2\implies c=\sqrt{a^2+b^2}&#10;\qquad &#10;\begin{cases}&#10;c=hypotenuse\\&#10;a=adjacent\\&#10;b=opposite\\&#10;\end{cases}&#10;\\\\\\&#10;c=\sqrt{7^2+(-4)^2}\implies \implies c=\sqrt{65}\\\\&#10;-------------------------------\\\\&#10;sec(\theta )=\cfrac{\stackrel{hypotenuse}{\sqrt{65}}}{\stackrel{adjacent}{7}}
6 0
3 years ago
Write an equation for <br> (2, 1), and y increases by 4<br> when x increases by 1.
Katen [24]

Answer:

Step-by-step explanation:

The equation for a line can be written in slope-intercept form:

y = mx + b

Where m is the slope of the line and b is the y-intercept.

Since we know "y increases by 4 when x increases by 1", that tells us that the slope of the line is 4.

y = 4x + b

To figure out the y-intercept, b, we can plug in the coordinates given in the problem to the point that the line passes through, (2, -1)

1 = 4(2) + b

1 = 8 + b

b = -7

Therefore, the equation of the line is y = 4x - 7

7 0
4 years ago
Jim Lee received his bank statement from Bayne Bank indicating a balance of $7,980. Lee's checkbook showed a balance of $6,800.
bezimeni [28]
<span>Given:
Bayne Bank indicating a balance of $7,980.
Lee's checkbook showed a balance of $6,800.
checks outstanding were $1,330.
NSF check for $120 and a service charge of $30. 

Bank balance:                     7,980
less: outstanding checks <u>   (1,330)</u>
Bank balance, end              6,650

Jim's checkbook balance:   6,800
less: NSF check      120
         service charge 30    <u>   (150)</u>
Jim's balance, end              6,650

The reconciled balance is: $6,650.

In reconciling the bank balance, we need to add the deposits in transit and deduct the outstanding checks. This are all transactions reflected in the book but not yet reflected in the bank account.

In reconciling the book balance, we need to add the credits made in the bank account and deduct the debits like service charges.</span>
5 0
3 years ago
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