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lorasvet [3.4K]

2 years ago

5

Juliet deposited $9,000 into her savings account. The bank offers 2% interest. She invests her money for 6 months. How much mone

y does she have in her account in total, including the interest? Show work
(NEED EQUATION)

1 answer:

frutty [35]2 years ago

5 0

Answer:

9,000 ×(1+0.02)^6

Step-by-step explanation:

put that in yer calculator

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X + 4y = 0<br> 16y = -4x<br> What is the solution to the system?

Savatey [412]

Answer:

the answer is 4

Step-by-step explanation:

you divide -4 to both sides and 16 divided by -4 is 4

4 0

3 years ago

For the equation --4y = 8x, what is the constant of variation?

larisa86 [58]

Answer: 1) B is correct, constant of variation is -2.

Step-by-step explanation:

1)

Direct variation states that a relationship between the two variables. we say y varies directly as x

i.e, or y =kx.................[1] ; where k is the constant of variation.

Given the equation:

Divide both sides by -4 we get;

Simplify:

.......[2]

On comparing equation [2] with [1] we get;

k = -2

6 0

3 years ago

Let x denote the courtship time for a randomly selected female–male pair of mating scorpion flies (time from the beginning of in

gavmur [86]

Complete Question:

a) Is it plausible that X is normally distributed?

b) For a random sample of 50 such pairs, what is the (approximate) probability that the sample mean courtship time is between 100 min and 125 min?

Answer:

a) It is plausible that X is normally distributed

b) probability that the sample mean courtship time is between 100 min and 125 min is 0.5269

Step-by-step explanation:

a)X denotes the courtship time for the scorpion flies which indicates that is a real - valued random variable, and since normal distribution is a continuous probability distribution for a real valued random variable, it is plausible that X is normally distributed.

b) Probability that the sample mean courtship time is between 100 min and 125 min

$\mu = 120\\n = 50$

$P(x_{1} < \bar{X} < x_{2} ) = P(z_{2} < \frac{x_{2}- \mu }{SD} ) - P(z_{1} < \frac{x_{2}- \mu }{SD})$

$SD = \sqrt{\frac{\sigma^{2} }{n} } \\SD = \sqrt{\frac{110^{2} }{50} } \\SD = 15.56$

$P(100 < \bar{X}$

From the probability distribution table:

$P(z_{2} < 0.32 ) = 0.6255\\ P(z_{1} < -1.29) = 0.0986$

$P(100 < \bar{X}$

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3 years ago

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Marizza181 [45]

It is 13 over 31 your welcome

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3 years ago

Next sequence of 1,-2,-5,-8

melamori03 [73]

Answer:

-11,-14,-17

Step-by-step explanation:

Your numbers are decreasing by 3.

3 0

2 years ago