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Oduvanchick [21]
1 year ago
6

Use the following variables for #'s(3-5):f= -6 g= 7 h=94) 5-f

Mathematics
1 answer:
Bingel [31]1 year ago
4 0

The value of the expression 5 - f is 11.

An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles.

A variable is a symbol and placeholder for any mathematical object. In particular, a variable may represent a vector, a number, a function, a matrix, the argument of a function, a set, or an element of a set.

We have the value of the following variables,

f = - 6,

g = 7 and,

h = 9

Now consider the expression 5 - f,

Substituting the value of f in the expression we get,

5 - f = 5 - ( - 6 )

5 - f = 5 + 6

5 - f = 11

Therefore, the value of 5 - f is 11.

Learn more about expression here:

brainly.com/question/1859113

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Find the sum of a third (a+b) and a fifth of (a-b)
Nuetrik [128]

Answer:

(5a+5b+3ab)/15

Step-by-step explanation:

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7 0
2 years ago
What is the solution to the system of equations? "-6x2/5y=8" 1/2x+3y=29
prohojiy [21]

The answer choice which represents a solution to the system of equations is; (–2, 10).

<h3>Which answer choice is a solution to the systems of equations?</h3>

The system of equations as given in the task content is;

-6x - (2/5)y = 8

(1/2)x +3y = 29

Hence, by making x subject in equation 1 and substitution; we have;

x = (-0.4y -8)/6

Hence; (0.4y -8)/12 + 3y = 29.

(0.4y -8) + 36y = 348

35.6y = 356

y = 10

and x = (-0.4(10) -8)/6 = -2.

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8 0
2 years ago
NEED HELP WITH THESE
faltersainse [42]

Step-by-step explanation:

1 .f(x)=x^{2}-x+1

   f(-1)= (-1)-(-1)+1

   f(-1)= 1+1+1

      = 3

3.f(x)=x^{2}-x+1

 f( 1)=(1)-1+1

  f( 1)=1-1+1

        =1

5. f(x)=x^{2}-x+1

    f(3)=(3)^{2}-3+1

         = 9-3+1

          =7

2. g(x) = 5 - 3x

 g( -8)=5-3(-8)

g( -8)=5+24

        =29

4.g(x) = 5 - 3x

g(5)=5-3(5)

 g(5)=5-15

       =-10

6.g(x) = 5 - 3x

   g(-3)=5-3(-3)

 g(-3)=5+9

         =14

3 0
2 years ago
Two trains are traveling at a constant rate. Which train has the greater speed?
natali 33 [55]
A point on the graph (for train b) that is exact is (2,250). From the origin, the rise is 250 and the run is 2. Rise/run would give us 250/2, which is 125. This means that train B travels 125mi every hour. For train A, we subtract the distance from hour 2 from hour 3 to get the miles per hour (because 3-2=1, subtracting the distance of hour 3 from 2 will give us the distance in 1 hour). 180-120= 60, meaning train A travels at 60mph. 60<125, meaning A
3 0
2 years ago
You buy a lottery ticket to a lottery that costs $10 per ticket. There are only 100 tickets available to be sold in this lottery
riadik2000 [5.3K]

Answer:

Loss of $1.20

Step-by-step explanation:

The possible outcomes for this lottery and their probabilities are:

- a 1 in 100 chance of winning $450

- a 2 in 100 chance of winning $120

- a 4 in 100 chance of winning $30

- a 93 in 100 chance of losing $10

Therefore, the expected value of this lottery when buying one ticket is:

E(X) = \frac{1}{100}*\$450+ \frac{2}{100}*\$120+ \frac{4}{100}*\$30-\frac{93}{100}*\$10 \\E(X) = -\$1.2

Therefore, you are expected to lose $1.2 per ticket.

3 0
3 years ago
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