Answer:
55
Step-by-step explanation:
Lucas went to the bank the first time with $55 and the second time with $55, when you add those togeother you get $110. Then he wrote a check for $116 and ended up having -$6...basically if you have $110 in all then you write a check for $116 you would have -$6 in your balance. 110-116 = -6
Answer:
I can't really see the top numbers...
Step-by-step explanation:
<u>Given</u>:
The given triangle QPO is a right triangle.
The length of QP is 5 units.
The length of OP is (x + 5) units.
The length of QO is (x + 6) units.
We need to determine the hypotenuse of the triangle QPO.
<u>Value of x:</u>
The value of x can be determined using the Pythagorean theorem.
Thus, we have;

Substituting the values, we get;

Expanding, we get;

Adding the like terms, we get;




Thus, the value of x is 7.
<u>Length of the hypotenuse:</u>
The hypotenuse of the triangle QPO is QO.
Substituting x = 7 in the length of QO, we get;


Thus, the length of the hypotenuse is 13 units.
Hence, Option D is the correct answer.
Answer:
Cos <B = 3/5
Step-by-step explanation:
Find the diagram attached
From the diagram, we have;
Hypotenuse BC = 80
Opposite to <B = AC =64
Adjacent AB = 48
According to SOH CAH TOA identity
Cos theta = adjacent/hypotenuse
Cos<B = AB/BC
Cos <B = 48/80
Express in its simplest form
Cos <B = (16*3)/(16*5)
Cos <B = 3/5
Hence the ratio of cos<B in its simplest form is 3/5
Answer:
Step-by-step explanation:
Let x be the random variable representing the minutes people spend browsing websites. Since the population mean and population standard deviation are known and it is a normal distribution, we would apply the formula,
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = standard deviation
From the information given,
µ = 4.5 minutes
σ = 1.2 minutes
The probability that people spent between 4 and 6 minutes browsing the sites is expressed as
P(4 ≤ x ≤ 6)
For x = 4,
z = (4 - 4.5)/1.2 = - 0.42
Looking at the normal distribution table, the probability corresponding to the z score is 0.3372
For x = 6
z = (6 - 4.5)/1.2 = 1.25
Looking at the normal distribution table, the probability corresponding to the z score is 0.8944
Therefore,
P(4 ≤ x ≤ 6) = 0.8944 - 0.3372 = 0.5572
The percentage of people spending between 4 and 6 minutes browsing the sites
0.5572 × 100 = 55.72%