MATHEMATICS MIDDLE SCHOOL

The function g(x) is define as g(x) = -2x^2+3x. The value of g(-3) is

Answers

Answer 1

Answer:

Answer:

g(- 3) = - 27

Step-by-step explanation:

To evaluate g(- 3) substitute x = - 3 into g(x)

g(- 3) = - 2(- 3)² + 3(- 3) = - 2(9) - 9 = - 18 - 9 = - 27

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If 4x-3/7 which of the following is the inverse of f(x)
Which graph shows the solution to the following inequality?
Solve 3x + 70 - 7x is greater than or equal to 18
noreen made 8 2/3 cups of snack mix for a party. her guest ate 3/4 of the mix. how much snack mix did her guest eat?
Mrs Lopez drives a number of miles north. Then she drives 34 miles west. She drives 94 miles in all. Complete the number sentences to show how many miles she drives north.? +_ = _ and _ - _ = ?

Write the fractional form and decimal form for the rational number represented on each number line

Answers

question 28:

-2/5 = -0.40

question 29:

20 1/3 = approx 20.333 (the 3 repeats forever)

Complete the sentence 0.04 is 1\10 of

Answers

0.04 is 1/10 of 0.4

Because 0.04 x 10 is 0.4

0.04=(1/10)*0.4, so 0.04 is 1/10 of 0.4.

Solve these system of linear equations:5x-y=10}
4x-2y=20}

AND:

3x+4y=12}
2x-y=-10}

WITH STEPS PLEASE!!!!!

Answers

$5x-y=10 \n4x-2y=20 \ \ \ |\hbox{divide both sides by (-2)} \n \n5x-y=10 \n\underline{-2x+y=-10} \ \ \ |\hbox{add by sides} \n5x-2x-y+y=10-10 \n3x=0 \nx=0 \n \n\hbox{substitute 0 for x in one of the equations:} \n5 * 0 -y=10 \n-y=10 \ny=-10 \n \n\hbox{the answer:} \nx=0 \n y=-10$

$3x+4y=12 \n2x-y=-10 \ \ \ |\hbox{multiply both sides by 4} \n \n3x+4y=12 \n\underline{8x-4y=-40} \ \ \ |\hbox{add by sides} \n 3x+8x+4y-4y=12-40 \n11x=-28 \nx=-(28)/(11) \nx=-2 (6)/(11) \n \n\hbox{substitute -28/11 for x in one of the equations:} \n2 * (-(28)/(11))-y=-10 \n-(56)/(11)-y=-(110)/(11) \n-y=-(110)/(11)+(56)/(11) \n-y=-(54)/(11) \ny=(54)/(11) \ny=4 (10)/(11) \n \n\hbox{the answer:} \nx=-2(6)/(11) \ny=4 (10)/(11)$

What is the easiest way to put a percentage into a fraction

Answers

Put the percent over 100 and reduce.

For example, 75%. Put it over 100: 75/100. Reduce to 3/4.

Put the percentage number over 100

$(given.percentage)/(100)$

x% = $(x)/(100)$

Rohit is 40 m SouthWestof Aarav. Ansh is 40 m SouthEast
of Aarav. Then Ansh is in which direction of rohit?

Answers

Ansh is east of Rohit.

Answer:

Step-by-step explanation:

Nash is east of rohit

Gina charges $28 for 3 hours of swimming lessons. Hector charges $18 for 2 hurs of swimming lessons. Which instructor offers a better deal?

Answers

Answer:

Hector offers a better deal: $18 for 2 hours.

Step-by-step explanation:

1. You have the following information given in the problem above:

- Ginas offers $28 for 3 hours.

- Hector offers: $18 for 2 hours.

2. Then, you must write the rates:

a) $28 for 3 hours:

$(28)/(3)=9.33$ dollars per hour.

b) $18 for 2 hours:

$(18)/(2)=9$ dollars per hour.

3. Therefore, the better deal is $18 for 2 hours

Answer:

Hector is providing best deal.

Step-by-step explanation:

Given data:

Gina charges = $28

Time by Gina = 3 hours

Hector charges = $18

Time by Hector = 2 hours

Solution:

Charges per hour by Gina = $28/3

= $9.33

Charges per hours by hector = $18/2

= $9

Hence hector charges low per hour than Gina. So hector provides the best deal.

Explanation:

Now the both instructor provides lesson with different charges with different hour. So if we calculate the charges per hour than the charges per hour Gina is charging more than hector.

Hector is charging $9 for one hour and $27 for 3 hour while Gina is charging $28 for 3 hours.

So the Hector is providing best deal.

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Simplify the expression (-5-4)divided(-3+5)

1/2(-4+6x) = 1/3x+2/3(x+9)

Nick is playing a golf game. He starts the game with 400 points. Each time he misses a golf shot, he loses 50 points.Complete the table. Missed golf shots Points 0 400 1 350 2 300 6 ????