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Alexxandr [17]
3 years ago
6

If f(x) = 5x2 - 3x , what is f(-3)

Mathematics
2 answers:
stiks02 [169]3 years ago
8 0

Answer: = -21

Step-by-step explanation:

5\left(-3\right)\left(2\right)-3\left(-3\right)

=-30-3\left(-3\right)

=-30-\left(-9\right)

=-21

Whitepunk [10]3 years ago
7 0
If the x between 5 and 2 is a letter then the answer is -21
If it’s a multiplication sign then it’s 19
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You are planning your week-end schedule. You can spend at most 8 hours playing video games and doing homework. You want to spend
MatroZZZ [7]

The system of inequalities is:

v + h ≤ 8

v < 2

h ≥ 1.5

<h3>Which system of equations represents this situation?</h3>

Let's define the variables:

  • v = number of hours playing video games.
  • h = number of hours spent on homework.

The maximum time that you can spend on both activities is 8 hours, then:

v + h ≤ 8

You want to spend less than 2 hours on video games, so:

v < 2

You want to spend at least, 1.5 hours on homework, so:

h ≥ 1.5

Then the system of inequalities is:

v + h ≤ 8

v < 2

h ≥ 1.5

If you want to learn more about inequalities:

brainly.com/question/18881247

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7 0
2 years ago
A rectangle prism has a height of 4 millimeters and width 5 millimeters. The total surface area is 166 square millimeters, what
Zolol [24]
The answer is 7, 2(7x5) + 2(4x7) + 2(5x4) = 166
7 0
3 years ago
Whats the anwser to -3(x-9)=-3
Delvig [45]

Step-by-step explanation:

-3x + 27= -3

-3x = -3-27

-3x = -30

x= 10

7 0
2 years ago
Simplify 4^3•4^5.<br> help asap !
Julli [10]

Answer:

D

Step-by-step explanation:

when there are exponents with same bases multiplied by each other, keep the base and add the exponents

4^(3)+4^(5)=4^8

4^8 is D in this question

7 0
3 years ago
Write the number shown in standard form and expanded notation
zhenek [66]

Given:

Standard form and expanded notation

Find-:

The number shown in standard form and expanded notation

Explanation-:

The standard form is

Standard form = The standard form is

abcde=a.bcde\times10^4

For example, is

5326.6=5.3266\times10^3

The expanded form is

The expanded = Expanded form is a way to write a number by adding the value of its digits. We can use a place value chart to determine the value of a number's digits.

For example

7229=7000+200+20+9

3 0
1 year ago
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