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3 years ago

Help and i give you the brainlest please

Mathematics

2 answers:

Anna35 [415]3 years ago

8 0

Answer:

The slope is 0.50 which means that for every change in x by 1, there is a change in y by 0.50

pickupchik [31]3 years ago

5 0

Answer:

• In consideration with the general equation of a line:

${ \rm{y = mx + b}}$

→ m is the slope

equation given:

${ \rm{C = 9 + 0.50t}} \\ \\ { \rm{C = 0.50t + 9}}$

• from comparison, m is 0.50

Answer: slope is 0.50 

Interpretation: The Total cost of using a computer varies positively with the time.

This means total cost of using a computer is directly proportional to the time of usage.

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Check that 2b+b and 3b have the same value when b is 1,2, and 3. Do 2b+b and 3b have the same value for all values of b? Explain

Inessa [10]

Answer:

Expression 2b+b and 3b have same values for all values of b.

Step-by-step explanation:

Given the two expression $2b+b$ and $3b$ and values of b as 1, 2 and 3.

Consider first expression that is, $2b+b$ .

Substituting the value of $b=1$ ,

$2\left(1\right)+\left(1\right)=2+1=3$ ....1

Substituting the value of $b=2$ ,

$2\left(2\right)+\left(2\right)=4+2=6$ ....2

Substituting the value of $b=3$ ,

$2\left(3\right)+\left(3\right)=6+3=9$ ....3

Consider second expression that is, $3b$ .

Substituting the value of $b=1$ ,

$3\left(1\right)=3$ ....4

Substituting the value of $b=2$ ,

$3\left(2\right)=6$ ....5

Substituting the value of $b=3$ ,

$3\left(3\right)=9$ ....6

For value of b=1, equation 1 and equation 4 are same, for value of b=2, equation 2 and equation 5 are same and for value of b=3 equation 3 and equation 6 are same.

Therefore both expression are same for all values of b.

3 0

3 years ago

Identify the error in this column: (x2 + 3x + 18) = (x + 3)(x + 6)

inessss [21]

Answer:

I think the error is that the variable x came before the whole number 2.

3 0

3 years ago

Read 2 more answers

Solve for x: -3x +5 = 17

valentina_108 [34]

Answer:

x=-4

Step-by-step explanation:

-3x +5 = 17

-3x+5-5=17-5

-3x=12

-3x/3 = 12/-3

x=-4

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3 years ago

The number e is an irrational number approximately equal to 2.718 between which pair of square roots does e fall

Shkiper50 [21]

Answer:

It falls between √7 and √8

Step-by-step explanation:

Please kindly check the attached file for explanation.

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3 years ago

If f(x)= -3x-2 equals f, then what would f(3) equal

sveta [45]

Answer:

f(3) = -11

Step-by-step explanation:

f(x) = -3x - 2

f(3) = -3(3) - 2 = -9 - 2 = -11

4 0

3 years ago