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Tems11 [23]
3 years ago
5

Four of the test subjects are randomly selected without​ replacement, and they all had true negative test results

Mathematics
1 answer:
8090 [49]3 years ago
5 0
<span>(24/98) * (23/97) * (22/96) * (21/95) </span>
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Ahmad and Ben have a total of 78 keychains.
Murljashka [212]

Sorry it was tru

2C=B

C-A=6 A=C-6

A+B+C=78

78=C-6+2C+C

5 0
2 years ago
Summit Plummet's big drop starts at point A(0, 120) and ends at point B (56, 0). What's the slope from point A to point B?
Makovka662 [10]

Answer:

15/-7

Step-by-step explanation:

slope is y(2) - y(1) / x(2) - x(1)

120-0/0-56

120/-56

simplified

7 0
3 years ago
PLS PLS HELP I WILL MARK BRAINLIEST!
Dennis_Churaev [7]

Answer:

9.5

Step-by-step explanation:

6 0
2 years ago
Solve the following equation-7x-4y=-4 -9x-5y=-6
maks197457 [2]

Answer:

\boxed{x = 4~~and~~ y = -6}

.

Step-by-step explanation:

-7x - 4y = -4 (times 5) -35x - 20y = -20

-9x - 5y = -6 (times 4) -36x - 20y = -24

.

Eliminate both equations

-35x - 20y = -20

<u>-36x - 20y = -24 </u>  <u>  </u>

x = 4

.

Substitute the value of x to one of equations

-7x - 4y = -4

-7(4) - 4y = -4

-28 - 4y = -4

-4y = - 4 + 28

-4y = 24

y = \frac{24}{-4}

y = -6

3 0
3 years ago
Read 2 more answers
The Smith family is looking to rent a large truck for their upcoming move. With Rose's Moving, they would pay $40 for the first
SOVA2 [1]

Answer:

10 days

Step-by-step explanation:

The Smith family is looking to rent a large truck for their upcoming move. With Rose's Moving, they would pay $40 for the first day plus $6 per additional day. With Riverside Rent-a-Truck, in comparison, the family would pay $90 for the first day plus $1 per additional day. Before deciding on which company to use, Mrs. Smith wants to find out what number of additional days would make the two choices equivalent with regards to cost. How many additional days would that be?

Let the number of additional days = x

With Rose's Moving, they would pay $40 for the first day plus $6 per additional day.

40 + 6x

With Riverside Rent-a-Truck, in comparison, the family would pay $90 for the first day plus $1 per additional day.

90 + x

Comparing both

40 + 6x = 90 + x

6x - x = 90 - 40

5x = 50

x = 50/5

x = 10

The number of additional days = 10 days

8 0
2 years ago
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