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4 years ago

How can you tell if a graph is inverse or direct variation

Mathematics

1 answer:

4vir4ik [10]4 years ago

5 0

Direct variation will be straight and diagonal lines
Inverse variation will be curved lines

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The numbers 4, 5, 6, and 7 are on a spinner. You spin the spinner twice. Which calculation proves that landing on an even number

den301095 [7]

Answer:

As long as the numbers are in equal proportion on the spinner, the probabilty of landing on an even number for the first and second spin is 1/4, or 25%.

Step-by-step explanation:

If there are four numbers on a spinner, all in equal proportion, than the probability of getting an even number (either 4 or 6) on any spin is 2/4, or 1/2, which is also 50%. Since the results of the first spin do not influence the results of the second spin, then they are independent events. So, if the likelihood of landing on even each time is 1/2, then we would mutliply 1/2 by 1/2 in order to find the probability that landing on an even number would happen in both spins. Our result would be 1/4, or 25%.

7 0

3 years ago

Read 2 more answers

Suppose you invest $3500 at annual interest rate of 2.5 % How much money do you have in the account after five years?

Effectus [21]

Answer:

Please check the explanation.

Step-by-step explanation:

To find the amount we use the formula:

$A=P\cdot \left(1+\frac{r}{n}\right)^{nt}$

Here:

A = total amount

P = principal or amount of money deposited,

r = annual interest rate

n = number of times compounded per year

t = time in years

Given

P=$3500

r=2.5%

n=12

t = 5 years

Calculating compounded monthly

After plugging in the values

$A=3500\left(1+\frac{2.5\%\:}{12}\right)^{12\cdot \:5}$

$A=3500\left(1+\frac{0.025}{12}\right)^{12\cdot \:5}$

$A=3500\cdot \frac{12.025^{60}}{12^{60}}$

$A = 3959.93$

Thus, If you deposit $3500 into an account paying 2.5% annual interest compounded monthly, you will have $3959.93 after five years.

Calculating compounded weekly

n = 52

$A=3500\left(1+\frac{2.5\%\:}{52}\right)^{52\cdot \:5}$

$A=3500\left(1+\frac{0.025}{52}\right)^{52\cdot \:5}$

A = 3,965.90

Thus, If you deposit $2000 into an account paying 4.5% annual interest compounded weekly, you will have $3,965.90 after five years.

6 0

3 years ago

Solve for x. Round your answer to the nearest tenth. 30 33 x

liubo4ka [24]

Step-by-step explanation:

it's an isosceles triangle

ht will intersect the base at 90°

so x^2 =33^2+15^2

x = 36.2

5 0

2 years ago

Find all values of k for which the function y=sin(kt) satisfies the differential equation y′′+19y=0. separate your answers by co

Lunna [17]

The given function is

$y=sin(kt)$

Differentiating

$y'=kcos(kt)$

Again differentiating

$y''=-k^2 sin(kt)$

Substituting the values of y '' and y in

$y''+19y=0$

We will get

$-k^2 sin(kt)+19sin(kt)=0
\\
sin(kt) (19-k^2)=0
sin(kt) =0, 19-k^2=0
\\
kt = \pi n , k =+- \sqrt{19}
\\
k = \frac{ \pi n}{t} , - \sqrt{17}, \sqrt{17}$

3 0

4 years ago

You can triple and then subtract by 1 to get 29

balandron [24]

Answer: 10*3=30. 30-1=29

Step-by-step explanation: The number you are looking for is 10

8 0

3 years ago