is f(-2) positive or negative

Answers

Answer 1

Answer:

Depends on [tex]f(x)[/tex]

Step-by-step explanation:

Example:

if [tex]f(x) = |x|[/tex]

then [tex]f(-2) = 2[/tex]

if [tex]f(x) = x ^ 3[/tex]

then [tex]f(-2) = -8[/tex]

research: even & odd functions.

Answer 2

Answer:

negative

Step-by-step explanation:

because in number 2 got the little line in one side


Related Questions

Will mark brainliest for whoever answers

Answers

Answer:

No

Step-by-step explanation:

You have to do it.

Select two ratios that are equivalent to
what are ratios are equivalent to 2:9

Answers

Answer:

3,18    4,27

Step-by-step explanation:

Answer:

4:18 and 6:27

Step-by-step explanation:

Since ratios can also be written as a fraction, multiply the fractions by any whole number of your choosing.

2/9*2=4/18

2/9*3=3/27

factorize x^2+3x-ax-3a​

Answers

Answer:

=−ax+x2−3a+3x

Step-by-step explanation:

(Timed) Solve the system of equations work shown

Answers

Answer:There are 2 ways to solve this system: by substitution or by graphing. I will solve this system using both.

Substitution Method

For x:

[tex]y = \frac{5}{4}x - 2\\y = -\frac{1}{4}x + 19\\\\\frac{5}{4}x - 2 = -\frac{1}{4}x + 19\\\\\frac{3}{2}x - 2 = 19\\\\\frac{3}{2}x = 21\\\\x = 14[/tex]

For y:

[tex]y = \frac{5}{4}(14) - 2\\\\y = 17.5 - 2\\\\y = 15.5[/tex]

Solution:

[tex](14, 15.5)[/tex]

Graphing Method

According to this graph, the solution will be [tex](14, 15.5)[/tex].

Which statement is true about the graphs of the two lines y=-x+2 and y=-x- ?
O The lines are perpendicular to each other because - and - are opposite reciprocals of each other.
The lines are perpendicular to each other because 2 and - 1 are opposite reciprocals of each other.
O The lines are neither parallel nor perpendicular to each other because - and are not opposite reciprocals
of each other.
The lines are neither parallel nor perpendicular to each other because 2 and - 3 are not opposite reciprocals of
each other.

Answers

Answer:

The correct option is Option C

Step-by-step explanation:

We are given the lines: [tex]y=-\frac{4}{5}x+2 \ and \ \ y=-\frac{5}{4}x-\frac{1}{2}[/tex]

The lines are perpendicular if they have opposite slopes i,e [tex]m_1=-\frac{1}{m_2}[/tex]

In line 1 the slope is [tex]-\frac{4}{5}[/tex] (Comparing with slope-intercept form [tex]y=mx+b[/tex] we get the value of m=-4/5)

In line 2 the slope is [tex]-\frac{5}{4}[/tex] (Comparing with slope-intercept form [tex]y=mx+b[/tex] we get the value of m=-5/4)

The opposite reciprocal of -4/5 is 5/4  

So, the lines are not perpendicular as their slopes are not opposite reciprocal of each other.

If the lines are parallel there slope must be same. Hence lines are not parallel as well.

So, The correct option is Option C

Answer:

c

Step-by-step explanation:

what is 0.34 round to the nearest tenth

Answers

Answer:

0.3

Step-by-step explanation:

We use the following rules to round 0.34 to the nearest tenth:

A) If the last digit in the fractional part of 0.34 is less than 5, then simply remove the last the digit of fractional part.

B) If the last digit in the fractional part of 0.34 is 5 or more and the first digit in the fractional part is less than 9, then add 1 to the first digit of the fractional part and remove the second digit.

C) If the last digit in the fractional part of 0.34 is 5 or more and the first digit in the fractional part is 9 then add 1 to the Integer part and make the fractional part 0.

With 0.34, rule A applies and the answer is: 0.3

Answer:

0.3

Step-by-step explanation:

round down because its 4

BRAINLEST and thanks!!

Answers

Answer:

X=0.500

Step-by-step explanation:

maths

ASAP solve 21x+6=300 30 points

Answers

Answer:

x = 14

Step-by-step explanation:

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression. 21x+6=300 X=14, 21x14=294+6=300.

The sum of three consecutive numbers is 84. What is the largest of these numbers? (5 points) a 28 b 26 c 29 d 27

Answers

Answer:

The answer is c.29

Step-by-step explanation:

I used Google xD

Answer:

Largest number = 29

Step-by-step explanation:

Let the consecutive numbers by (x + 1) ; (x + 2) and (x +3)

x +1 + x + 2 + x + 3 = 84         {Combine like terms}

x + x +x + 1  + 2 + 3 = 84

               3x + 6 = 84

                    3x = 84 - 6

                     3x = 78

                        x = 78/3

x = 26

Largest number = x + 3 = 26 + 3

                           =29

7x-7=3x-23. can u show the steps​

Answers

Answer: ight bet i gotchu its x=−4

Step-by-step explanation:

Let's solve your equation step-by-step.

7x−7=3x−23

Step 1: Subtract 3x from both sides.

7x−7−3x=3x−23−3x

4x−7=−23

Step 2: Add 7 to both sides.

4x−7+7=−23+7

4x=−16

Step 3: Divide both sides by 4.

4x/4=-16/4

ANSWER: X = -4

Write a linear equation in slope intercept form of a line with a slope of 12 and the point (0, 10).

y = 12x - 10

y = 12x + 10

y = 10x + 12

x = 10y - 12​

Answers

its y=mx+b so you will get b as the answer
It’s B, I used to do linear equations a lot in middle school and in 9th grade. Always remember (x,y), this will help you a lot. The point was (0,10) so ten is the y-intercept because it’s in the place of y so that means that’s where you’ll be starting at so you will add but if it’s negative you will subtract.

A student has a container with the volume 1.5 liters. She estimates the volume to be 1.2 liters. By what percent is the student's estimate off? I don't need a step-by-step explanation, I just want the right answer.

Answers

Answer:

20%.

1.2/1.5 = 0.8

0.8*100 = 80%

100%-80% = 20%.

We can verify this:

1.5-20% = 1.2.

Answer: 20%

Step-by-step explanation:

Which expression has a value of 50 after simplifying?

A.
(24 + 48) ÷ 4 + 2

B.
8 + (15 – 4) x 4 – 10 ÷ 5

C.
36 – 24 ÷ 6 + 24

D.
(8 + 12) – 6 + 9

Answers

The answer is B
8+11 x 4 -10/5
8+ 44-10/5
8+ 44 -2
52-2
50

Answer:

B number is right.

8 + (15 – 4) x 4 – 10 ÷ 5

8+11×4--10÷5

8+11×4-2

8+44-2

52-2

50

Given the answer to a
problem asking you to simplify the expression,
write the possible problem. Explain how you
created the problem.

I really need help I don’t understand this. I will be given 20 points to whoever helps me. Thank you

Answers

Yes that’s right pls make brainliest thanks I hope this helps

It costs $68 for 16 square feet of flooring. How much does it cost for 12 square feet of flooring?

Answers

Answer:

$51

Step-by-step explanation:

Answer: $51

Step-by-step explanation: you have to divide $68 by 16 to see how much it cost per square feet. Then you get 4.25 so you multiple that by 12

Determine the solution for the equation, 5w - 9= 44.
A) w=10.6
B) W=7
C) w=12.2
D) w=5.8

Answers

Answer:

A) 10.6

Step-by-step explanation:

5w - 9 = 44

Add 9 to both sides.

5w = 53

Divide by 5.

w = 10.6

5w-9=44
5w=53
W= 10.6
Answer is A

Plz help me answer this

Answers

Answer:

(1, 7)

x = 1

y = 7

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define systems

-5x + 2y = 9

y = 7x

Step 2: Solve for x

Substitution

Substitute in y:                              -5x + 2(7x) = 9Multiply:                                         -5x + 14x = 9Combine like terms:                      9x = 9Isolate x:                                         x = 1

Step 3: Solve for y

Define original equation:                    y = 7xSubstitute in x:                                     y = 7(1)Multiply:                                                y = 7

Answer: x = 1 and y = 7

Step-by-step explanation:

first you substitude y for 7x

-5x + 2(7x) = 9

then you distribute

-5x + 14x = 9

then you combine like terms

9x = 9

then you divide both sides by 9

x = 1

then you subsitute the x value in the other equations

y = 7(1)

meaning y = 7

Which set of values could be the side length of a 30-60-90 Triangle!

Answers

Your answer is A.

When you have a 30-60-90 triangle, your sides will always have a set pattern.

The side across from the 30 angle will be equal to n (in this case n = 4).

The side across from the 60 angle will always be equal to n√(3) (in this case, 4√(3)).

The side across from the 90 angle will always be 2n (in this case, 8).

You could go into trig or pythagorean theorem to prove this, but it's much simpler to remember it because it's a special triangle.

Can you help me solve this ​

Answers

first one is x< 4. second one is x<75. third one i think it’s x<75. last one should be x>125. hopefully i’m right but i think i did the math correctly :)

what is the value of k in the following equation?
12+k/22=13

Answers

K=-198

This is the answer
Hope it helps

Answer: k=22

Step-by-step explanation:

12+k/22=13

-12 -12

k/22=1

k=1*22

k=22

Calculate the composite surface area of the figure !!

Answers

hbu think i can get it done today tho i

1/8 + c = 4/5

what is c

Answers

Answer:

27/40

Step-by-step explanation:

Anyone know this pls help me

Answers

The correct answer is -4, I hope this helped:)

please help me!!!!!!!!!

Answers

Answer:

what is it asking like what is the step to do that i think i did that like back in 6th grade or something

Answer:

input output

0        -2

1         3

4        18

6        33

10       48

20      98

Step-by-step explanation:

Please help fast too easy questions for double the points I’ll give brainless also and 10 point!

Answers

Answer:

78.5

Step-by-step explanation:

add 1+2+3+4+5+6+7+100-56=78.5

The base is 19.

The second question is 5^1/2

Could you mark me as brainliest please?

Combine like terms:
8b + 8 -4b -3

Answers

The answer is 4b + 5. Hope this helps
4b+5

Yeah, good luck with the rest of your schoolwork :0

what is the area of the figure below
A: 88in2
B: 48 in2
C: 68 in2
B:43in2

Answers

Answer:

The correct answer is C, 68in².

Answer:

68

Step-by-step explanation:

The are of the  square is 3*3 = 9

Since we have two squares we need to mulitply by 2

9*2 = 18 is the total area of the squares

if you draw a line from the one square to the other you make a rectangle in the middle

the are of the rectangle is 10*3 which is 30

Two triangle has appared as we draw the line from one square to the other square.

The height of the traingle is (7 - 3)/2 which is 2

(2*10) / 2 =  which is 10

Since we have 2 triangle we get result as 2*10 = 20

20+30+18 = 68

Find the value of x
66°
6x

Answers

Answer:

x=11

Step-by-step explanation:

because those angles are = to eachother. Therefore, 66=6x which x =11

How much interest will you pay on a loan of $2,620, with a 3% interest rate, paid over 5
years?

Answers

Answer:

You'll pay $3013

Step-by-step explanation:

Amount to pay=$2620+Interest accrued

A=$2620+($2620×0.03×5)

A=$2620+$393

A=$3013

What is the slope of a line that is perpendicular to the
line shown on the graph?
5
4
4 3
2
1
54 -3 -2 -11
1 2 3 4 5 X
4
-2
1-3
-4
25

Answers

Answer:

The slope of a line that is perpendicular to the line

shown in the graph is = 4

Hence, option 'd' is true.

Step-by-step explanation:

From the line equation, let us take two points

(0, 2)(4, 1)

Finding the slope between two points

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(0,\:2\right),\:\left(x_2,\:y_2\right)=\left(4,\:1\right)[/tex]

[tex]m=\frac{1-2}{4-0}[/tex]

[tex]m=-\frac{1}{4}[/tex]

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

The slope of the perpendicular line will be:

[tex]-\frac{1}{-\frac{1}{4}}=4[/tex]

Thus, the slope of a line that is perpendicular to the line

shown in the graph is = 4

Hence, option 'd' is true.

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