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sergiy2304 [10]
3 years ago
9

Can someone help? Questions above. Thank you!

Mathematics
2 answers:
harina [27]3 years ago
5 0

Answer:


Step-by-step explanation:

19(a) - 50

19(b) - 62

19(c) -

Delicious77 [7]3 years ago
3 0

Answer:

(a) 50; (b) 64; (c) 36

Step-by-step explanation:

(a) The range is (largest value) - (smallest value) = 80 - 30 = 50.

(b) The value of the median is the value of the middle term, after the terms have been arranged in increasing order.  When given a graph like this one, you can spot the median easily:  It's the x-value of the vertical line inside the box:  64.

(c) Look at the x-values of the two box endpoints:  38 and 74.  Subtract the larger from the smaller:  74 - 38.  This gives us the IQR:  74 - 38 = 36.

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Jim is investing in the stock market. Jim is hoping to earn $2,000 in interest in order to take a trip to Mexico. Stock A earns
Vanyuwa [196]

Given:

Total amount for investment = $32000

Rate of interest for Stock A = 4%

Rate of interest for Stock B = 7%

Jim is hoping to earn $2,000 in interest.

To find:

The amount of investments in Stock A and Stock B.

Step-by-step explanation:

Let amount of investments in Stock A = $x

Amount of investments in Stock B = $y

Total amount for investment = $32000

x+y=32000        ...(i)

Rate of interests in Stock A and Stock B are 4% and 7%. Total interests is $2000.

0.04x+0.07y=2000           ...(ii)

From (i) and (ii), we get

0.04x+0.07(32000-x)=2000

0.04x+2240-0.07x=2000

-0.03x=2000-2240

-0.03x=-240

Divide both sides by -0.03.

x=\dfrac{-240}{-0.03}

x=8000

Put x=8000 in (i).

8000+y=32000  

y=32000-8000  

y=24000  

Therefore, the amount of investments in Stock A and Stock B are $8000 and $24000 respectively.

8 0
3 years ago
-6/20+150%<br><br><br><br> Please help I need the answer quickly.
tia_tia [17]
Is this

-6 ÷ 20 + 150%

or is -6/20 a fraction?
7 0
3 years ago
Read 2 more answers
How many servings of<br> cups are in 33 cups of ice cream?
Galina-37 [17]

Answer:

I am 99% sure its 33 servings

Step-by-step explanation:

because the question says that "how many servings of <u>cups</u> are in <u>33 cups</u>".

(hopefully im right) and HOPEFULLY THIS HELPS. : )

5 0
3 years ago
Air-USA has a policy of booking as many as 24 persons on an airplane that can seat only 22. (Past studies have revealed that onl
Alex17521 [72]

Answer:

B. no, it is not low enough

A. no, it is not low enough

Step-by-step explanation:

Given that Air-USA has a policy of booking as many as 24 persons on an airplane that can seat only 22.

Prob for  a random person booked arrive for flight = 0.86

No of persons who books and arrive for flight, X is binomial, since there are two outcomes and each person is independent of the other

The probability that if Air-USA books 24 persons, not enough seats will be available

= P(X=23)+P(x=24)

= 0.1315

B. no, it is not low enough

-------------------------------

The prob we got is >10% also

A. no, it is not low enough

7 0
3 years ago
An object launched vertically from a point that is 37.5 feet above ground level with an initial velocity of 48.6 feet per second
Elis [28]

Answer: 3.675 seconds

Step-by-step explanation:

Hi, when the object hits the ground, h=0:

h=−16t^2+48.6t+37.5

0=−16t^2+48.6t+37.5

We have to apply the quadratic formula:  

For: ax2+ bx + c  

x =[ -b ± √b²-4ac] /2a  

Replacing with the values given:  

a=-16 ; b=48.6; c=37.5

x =[ -(48.6) ± √(-48.6)²-4(-16)37.5] /2(-16)  

x = [ -48.6 ± √ 4,761.96] /-32

x = [ -48.6 ± 69] /-32

Positive:  

x = [ -48.6 + 69] /-32 = -0.6375

Negative:  

x = [ -48.6 - 69] /-32 = 3.675 seconds (seconds can't be negative)

Feel free to ask for more if needed or if you did not understand something.  

8 0
3 years ago
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