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Nikolay [14]
3 years ago
5

What is 7x1??????????????????????????

Mathematics
1 answer:
g100num [7]3 years ago
4 0

Answer:

7

Step-by-step explanation:

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I need help on How to do it
Sloan [31]
200g × 0.9 × 1/2 = 90 g
5 0
3 years ago
The value of a boat if depreciating at at a rate of 9% per year. In 2006 the boat was worth $17,800. Find the worth of the boat
svetlana [45]

Answer:

The worth of boat in 2013 will be $9202.6

Step-by-step explanation:

Rate of depreciation = 9% = 0.09

Cost of Boat in 2006 =$ 17,800

Cost of Boat in 2013 = ?

Years = 2013-2006= 7 years

The formula used is: \mathbf{A=P(1+r)^{t}}

Since the value of boat is depreciating the value of r will be r=-0.09

Here P = 17,800 , r=-0.09 and t = 7 years Finding A

A=P(1+r)^{t}\\A=17,800(1+(-0.09))^7\\A=17,800(0.91)^7\\A=17,800(0.517)\\A=9202.6

So, the worth of boat in 2013 will be $9202.6

4 0
2 years ago
The average credit card debt for college seniors is $22,199 with a standard deviation of $5300. What is the probability that a s
noname [10]

Answer:

Step-by-step explanation:

The number of samples is large(greater than or equal to 30). According to the central limit theorem, as the sample size increases, the distribution tends towards normal. The formula is

z = (x - µ)/(σ/√n)

Where

x = sample mean

µ = population mean

σ = population standard deviation

n = number of samples

From the information given,

µ = 22199

σ = 5300

n = 30

the probability that a senior owes a mean of more than $20,200 is expressed as

P(x > 20200)

Where x is a random variable representing the average credit card debt for college seniors.

For n = 30,

z = (20200 - 22199)/(5300/√30) =

- 2.07

Looking at the normal distribution table, the probability corresponding to the z score is 0.0197

P(x > 20200) = 0.0197

3 0
3 years ago
The set of points P(0, 3), Q(2, 0), R(4, -3) are collinear and the line has a slope of _____.
Anon25 [30]

If the points P, Q and R are collinear, then a slope of line PQ and a slope of line QR are equal.

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

PQ → (0, 3), (2, 0).

Substitute:

m=\dfrac{0-3}{2-0}=\dfrac{-3}{2}=-1.5

QR → (2, 0), (4, -3).

Substitute:

m=\dfrac{-3-0}{4-2}=\dfrac{-3}{2}=-1.5

CORRECT :)

<h3>Answer: m = -1.5.</h3>
8 0
3 years ago
Determine the median of the data. 2, 3, 3, 4, 5, 7, 9
satela [25.4K]
The median is 4 because 2 x’s out 9, 3 x’s out 7, 3 x’s out 5, and 4 is the only remaining number.
3 0
3 years ago
Read 2 more answers
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