Sarah buys a car for £44,000.

Mathematics

2 answers:

Feliz [49]3 years ago

6 0

Answer:

2.3 years or 2 and a half years

Step-by-step explanation:

bc 4% of 44000 is 1760 and we multiply that by 2.5 and get 4400 and minus that by 44000 and get 39600

daser333 [38]3 years ago

4 0

Answer:

3 years

Step-by-step explanation:

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How many solutions does the system have?

Hatshy [7]

Answer:
A:One Solution
Step-by-step explanation:
First substitute the y in the first equation with the second equation to get
-2x-4=3x+3
since theres a variable of both sides, you subtract the variable with the least coefficient, in this case, you add 2x to both sides to get
-4=5x+3
subtract the constant on both sides to get
-1=5x
divide both sides by 5
x= -0.2 or -1/5
it's A, one solution

7 0

3 years ago

a right circular cylinder with a diameter of 14 inches and a height of 10 inches has a volume in cubic inches of which of the fo

Kaylis [27]

Answer:

Answer is 1540 cubic inches 

You may use pie equals 3.14

Step-by-step explanation:

$given \: shape \: is \: a \: cylinder \\ diameter \: = 14 \: inches \\ radius \: = \frac{14}{2} = 7 \: inches \: \: ( r)\\ height = 10 \: inches \: \: \: \: (h) \\ volume \: of \: cylinder = \pi {r}^{2} h \\ = \pi {(7)}^{2} \times 10 \\ = \frac{22}{7} \times {(7)}^{2} \times 10 \\ = 22 \times 7 \times 10 \\ = 1540 \: cubic \: inches$

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7 0

3 years ago

Which critical value is appropriate for a 99% confidence level where nequals17, sigma is unknown, and the population appears

My name is Ann [436]

Answer:

t Subscript alpha divided by 2 = 2.921

Step-by-step explanation:

With sample sizes lower than 30, we use the t-test.

Otherwise, we use the z-test.

Here, n = 17

So we use the t-test.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 17 - 1 = 16

Now, we have to find a value of T, which is found looking at the t table, with 16 degrees of freedom(y-axis) and a confidence level of 0.99( $t_{1 - (\frac{1-0.99}{2}}) = 0.995$ ). So we have T = 2.921