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Allushta [10]
3 years ago
13

The product of the roots of 5 - 2m - 3m^2 = 0 is: A. -5/3 B. -3/5 C. 5/3

Mathematics
2 answers:
dimaraw [331]3 years ago
7 0
<span>m= <span><span><span><span>−5/</span>3 </span></span></span></span><span>   ,swnkadkjkkjmd,m,mdas</span>
svlad2 [7]3 years ago
4 0

Answer:

The correct option is A.

Step-by-step explanation:

The given equation is

5-2m-3m^2=0         ..... (1)

If a quadratic equation is defined as

ax^2+bx+c=0         ...... (2)

then product of roots is c/a.

From (1) and (2), we get

a=-3,b=-2,c=5

So, the product of the roots of given equation is

\text{Product of roots}=\frac{c}{a}

\text{Product of roots}=\frac{5}{-3}

\text{Product of roots}=-\frac{5}{3}

Therefore the correct option is A.

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Denise goes to work with her father. She notices that one man worked 31 1\ 4 hours for the week, and he was paid $9.20 per hour.
pochemuha

Answer:

$287.50

Step-by-step explanation:

31.25 x 9.20 = $287.50

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3 years ago
Read 2 more answers
How am i supposed to make a function? Number 15
Greeley [361]

Part A

<h3>Answer: T(n) = 58n+1800</h3>

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

Work Shown:

1800 = initial cost or starting cost

58*1 = 58 = cost for one person

58*2 = 116 = cost for two people

58*n = cost for n people

58n+1800 = total cost

58n+1800 = T(n)

T(n) = 58n+1800

======================================

Part B

<h3>Answer: D(T) = 0.85T</h3>

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

Work Shown:

T = total bill

15% discount means you still pay 85% of the bill (85%+15% = 100%)

D = discounted cost

D = 85% of T

D = 0.85*T

======================================

Part C

<h3>Answer: D(T(n)) = 49.3n + 1530</h3><h3>See attached image below for the table.</h3>

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

Work Shown:

We combine parts A and B.

T(n) = 58n+1800 from part A

D(T) = 0.85*T from part B

D(T(n)) = 0.85*( T(n) )

D(T(n)) = 0.85*( 58n+1800 ) ... plug in T(n) = 58n+1800

D(T(n)) = 0.85*( 58n+1800 )

D(T(n)) = 0.85*(58n)+0.85*(1800) ... distribute

D(T(n)) = 49.3n + 1530

If we plugged in n = 0, then,

D(T(n)) = 49.3n + 1530

D(T(0)) = 49.3*0 + 1530

D(T(0)) = 1530

Or we could plug n = 0 into T(n) to get T(0) = 1800

Then plug T = 1800 into D(T) = 0.85*T to get D(1800) = 1530

Either way you'll get the same answer.

Repeat this (using either method) for n = 50, 100, 150, 200 and you'll get the table of values you see below in the attached image.

======================================

Part D

The D( T(n) ) function allows us to find the discounted cost D for any number n of people that show up.

The input is n, where n is some positive integer less than or equal to 200 (because this is the reception hall's max capacity).

The output is the final discounted cost.

Example: n = 50 is one input which leads to its corresponding output of D( T(n) ) = 3995 as the table shows. So 50 people would have a discounted total cost of $3,995.

5 0
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Hannah took p minuets to jog around a park. Sofia took 12 minuets longer to jog around the park. If sofia took t minutes to jog
Sladkaya [172]

Answer:

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Step-by-step explanation:

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2 years ago
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The sum of two numbers is 22. the difference is 6 what are the two numbers?
Nataly [62]

Answer:

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Step-by-step explanation:

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2x = 28

x = 28/2

x = 14

Other number = 22 - 14 =8

8 0
3 years ago
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