MATHEMATICS COLLEGE

Help me please!!!!!!!!!!!

Answers

Answer 1

Answer: b. it is equivalent to 2/100

Answer 2

Answer:

Answer:

B. It is equivalent to 20/100

C. It is equivalent to the fraction represented by this picture

Step-by-step explanation:

20/100 simplified is 2/10

The graph also contains the right amount of boxes to represent 2/10 or 20/100

Hope this helps!

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How would you graph y = x - 7

Look at the set of ordered pairs.{(4, 6), (−7,−15), (13, 15), (−21, 8), (?, ?)}

Which of the following could replace the missing ordered pair to make the set not a function?

(−2, 4)
(21, 9)
(−7, 15)
(6, 8)
(13,−15)

Answers

The ordered pair that could replace the missing ordered pair to make the set not a function is given as follows:

(−7, 15).

When does a set of ordered pairs represent a function?

A set of ordered pairs represents a function if every input (first component of the ordered pair) is associated with exactly one output (second component of the ordered pair). In other words, if no two ordered pairs in the set have the same first component but different second components.

Hence the ordered pair (-7,15) would make the relation not a function, as the set already has the ordered pair (-7,-15), in which the input 7 is already mapped to an output of -15, hence it cannot be mapped to an output of 15.

More can be learned about relations and functions at brainly.com/question/12463448

#SPJ1

To construct a confidence interval using the given confidence level, do whichever of the following is appropriate. (a) Find the critical value z Subscript alpha divided by 2, (b) find the critical value t Subscript alpha divided by 2, or (c) state that neither the normal nor the t distribution applies. 95%; nequals200; sigma equals 19.0; population appears to be skewe

Answers

Answer:

The correct option is (a).

Step-by-step explanation:

According to the Central Limit Theorem if we have a population with mean μ and standard deviation σ and take appropriately huge random-samples (n > 30) from the population with replacement, then the distribution of the sample- means will be approximately normally-distributed.

Then, the mean of the sample means is given by,

$\mu_(\bar x)=\mu$

And the standard deviation of the sample means is given by,

$\sigma_(\bar x)=(\sigma)/(√(n))$

The information provided is:

n = 200

σ = 19.0

Population is skewed.

As the sample selected is quite large, i.e. n = 200 > 30 the central limit theorem can be used to approximate the distribution of the sample mean by the normal distribution.

So, $\bar X\sim N(\mu, (\sigma^(2))/(n))$ .

Then to construct a confidence interval for mean we will use a z-interval.

And for 95% confidence level we will compute the critical value of z, i.e. $z_(\alpha/2)$ .

Thus, the correct option is (a).

The sale price of an item is $330 after a 25% discount. What was the original price of the item?

Answers

Answer:

$440

Step-by-step explanation:

100%-25%=75%

75%=330

1%=330÷75=4.4

100%=100x4.4=440

Hope this helps! Thanks.

A couch sells for $820. Instead of paying the total amount at the time of purchase, the same couch can be bought by paying $400 down and $60 per month for 12 months. How much is saved by paying the total amount at the time of purchase?

Answers

Answer:

$300

Step-by-step explanation:

The couch is sold in two ways; outright payment or installment payment.

Outright payment would cost = $820

Installment payment = down payment + monthly charges

Down payment = $400

Monthly charges for a period of one year (12 months) = 12 × $60

= $720

Installment payment would cost = $400 + $720

= $1120

Amount saved by paying total amount at the time of purchase = $1120 - $820

= $300

Thus, the outright buying the couch would save $300.

Q4, PLSS HELP, IT TIME.........

Answers

Answer:

dilation:) dilation always produces a congruent figure...

If f(x) = 2x2 +5./(x-2), complete the following statement:
f(0) =

Answers

Answer:

F(6)=82

Step-by-step explanation: