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3 years ago

Question 1 is points) If point A is (3.1). What is it's new position after x --> {X-3. y - 1). 0 (0.0) (62) (2-2) 01-3-1)

Mathematics

1 answer:

lutik1710 [3]3 years ago

7 0

Answer:

(0,0), or A

Step-by-step explanation:

Given the function { x - 3, y - 1 }:

$(3 -3, 1-1)=(0,0)$

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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 14901490 and the standard dev

kicyunya [14]

<h2>Answer with explanation:</h2>

Given : A standardized exam's scores are normally distributed.

Mean test score : $\mu=1490$

Standard deviation : $\sigma=320$

Let x be the random variable that represents the scores of students .

z-score : $z=\dfrac{x-\mu}{\sigma}$

We know that generally , z-scores lower than -1.96 or higher than 1.96 are considered unusual .

For x= 1900

$z=\dfrac{1900-1490}{320}\approx1.28$

Since it lies between -1.96 and 1.96 , thus it is not unusual.

For x= 1240

$z=\dfrac{1240-1490}{320}\approx-0.78$

Since it lies between -1.96 and 1.96 , thus it is not unusual.

For x= 2190

$z=\dfrac{2190-1490}{320}\approx2.19$

Since it is greater than 1.96 , thus it is unusual.

For x= 1240

$z=\dfrac{1370-1490}{320}\approx-0.38$

Since it lies between -1.96 and 1.96 , thus it is not unusual.

5 0

3 years ago

($23 dollars per person)The cost of the hall for the dance is $4000 dollars How many people must attend the dance to cover the r

garik1379 [7]

Answer:

174

Step-by-step explanation:

Rental Fee ÷ Cost of Ticket = # of people needed

$4000÷$23=173.9....

Can't have .9 of a ticket, so round up to 174.

# of people needed is 174

8 0

3 years ago

Please answer correctly if you know. (No links please).

eimsori [14]

Answer:

The Answer is $x^{\frac{7}{3\\} }$

Step-by-step explanation:

Let me know if i got this right...? :)

7 0

3 years ago

What is the answer and how did you find that?

Ymorist [56]

Answer:

a) $15287.71

b) $15017.64

c) $16,368 − r%

Step-by-step explanation:

Mary's car price (including tax): $16,368

[possible tax rates and listing prices]

a) 6.6%

➠ $15287.71

b) 8.25%

➠ $15017.64

c) r (any rate)

➠ $16,368 − r%

How did I find my answers?

I had to find the sales tax, and subtract it from the overall cost of the item.

To find the sales tax, all I had to do was multiply the sales tax percentage by the price of the item
Next, all I had to do was subtract the sales tax from the item's cost

7 0

3 years ago

F(x)=6x-3 graph the function in inverse

Digiron [165]

Answer:

See attachment.

Step-by-step explanation:

f(x) = 6x - 3

y = 6x - 2

Switch out x for y.

x = 6y - 2

Solve for y.

x + 2 = 6y

$\frac{x+2}{6}$ = y

Graph.

5 0

3 years ago

Question 1 is points) If point A is (3.1). What is it's new position after x --> {X-3. y - 1). 0 (0.0) (62) (2-2) 01-3-1)​

Question 1 is points) If point A is (3.1). What is it's new position after x --> {X-3. y - 1). 0 (0.0) (62) (2-2) 01-3-1)