Help please!!!! EEEEEEEEEEEE

Help Please!!!! EEEEEEEEEEEE

Answers

Answer 1

Answer:

f(-3)=(-3)²-2(-3)=9--6=9+6=15

Answer 2

Answer:

15

Step-by-step explanation:

f(x)=x^2-2x

f(-3)=(-3)^2-2(-3)

f(-3)=9+6

f(-3)=15


Related Questions

What is AC Brainliest for answer

Answers

Answer:

The legnth of AC is about 6.364

Explanation:


Graph the equation y=1/2x+5

Answers

Answer:

This is what it should look like:

HEY CAN ANYONE PLS ANSWER DIS MATH PROBLEM!!!
PLS I RLY NEED IT RN!!!

Answers

Answer:

Step-by-step explanation:

one point is (-2,5)

5y-25=-11x-22

11x+5y=25-22

11x+5y=3

5y=3-11x

[tex]y=\frac{3-11x}{5} \\x=-2,y=5\\x=3,y=-6\\[/tex]

so points are (-2,5) and (3,-6)

draw a line through these points.

In the parallelogram below find the value of each variable. Hint: find the value of t first

Answers

Answer:

because this is a parallelogram

=> 3t - 15 = 2t + 10

⇔ t = 10 + 15

t = 25

with t = 25 => 3t - 15 = 3.25 - 15 = 60

we also have:

4r + (3t - 15) = 180°

⇔ 4r + 60° = 180°

⇒ 4r = 120°

r = 30

we also have;

4r = 3s

=> 4.30 = 3s

⇔ s = 4.10

s = 40

Step-by-step explanation:

You can use the fact that sum of all angles of a parallelogram is 360 degrees and the sum of two adjacent angles in a parallelogram is 180 degrees.

The value of the variables used in the figure are:

r = 30

s = 40

t = 25

What are some useful properties of angles of a parallelogram?Sum of all angles of a parallelogram is 360 degrees.Sum of two adjacent angles in a parallelogram is 180 degrees.

Using the above facts to find the values of specified variables

[tex]4r + (3t - 15) + (2t + 10) + 3s = 360^\circ\\4r + 3s + 5t = 365[/tex]

And

[tex]3t - 15 + 4r = 180 \cdots (1)\\3t - 15 + 3s = 180\cdots (2)\\3s + 2t + 10 = 180\cdots (3)\\4r + 2t + 10 = 180\cdots (4)[/tex]

We get 2 systems of linear equations.

First system consists of equation 1 and equation 4

Second system consists of equation 2 and equation 3

From equation 1 and 4, as both's left side is equal to 180, thus they are equal too, or

[tex]3t - 15 + 4r = 4r + 2t + 10\\3t - 2t = 4r - 4r + 10 + 15\\t = 25[/tex]

Putting it in equation 1, we get:

[tex]3t - 15 + 4r = 180\\3 \times 25 + 4r = 180 + 15\\75 + 4r = 195\\\\r = \dfrac{195 - 75}{4} = 30[/tex]

Putting the value t = 25 in second equation, we get:

[tex]3t - 15 + 3s + 180\\3 \times 25 - 15 + 3s = 180\\60 + 3s = 180\\\\s = \dfrac{180 - 60}{3} = 40[/tex]

Thus, the values of the specified variables in the given graph are:

r = 30

s = 40

t = 25

Learn more about system of linear equations here:

: https://brainly.com/question/13722693

-4x-3(-44-23)=13


please show the work, i’ll mark brainliest

Answers

Answer:

47

Step-by-step explanation:

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

−4x−3(−44−23)=13

Step 1: Simplify both sides of the equation.

−4x+201=13

Step 2: Subtract 201 from both sides.

−4x+201−201=13−201

−4x=−188

Step 3: Divide both sides by -4.

−4x

−4

=

−188

−4

x=47

PLEASE ANSWER ALL THE QUESTIONS IM LOSING MY SANITY

For any line, if you draw 2 right triangles using the line as the hypotenuse, can the triangles be congruent? Why or why not? Do they have to be congruent? Why or why not

Answers

Hypotenuse-Leg (HL) Theorem. If the hypotenuse and one leg of a right triangle are equal to the hypotenuse and one leg of another right triangle, then the two right triangles are congruent.

Mark as brainlist

Solve.
X + 2 over X
X -1 Over 2
2
1,4
-1
No solution

Answers

Answer:

10x times 1000 y minus 4x

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

£0.65 in pence maths

Answers

Answer:

65p

Step-by-step explanation:

uhhhh......

I am really confused

The side length of a square 12x + 32. Write an equivalent expression that shows the perimeter as four times the side length of the square.

Answers

Answer:

4(12x + 32) = 48x + 128

Step-by-step explanation:

Perform the operation and reduce the answer fully. Make sure to express your answer
as a simplified fraction.

Answers

-5/18 or -0.27
best of luck!

3. A gardener mows 5 out of every 6 days. How many days would he mow
in a 90-day period of time? Plz I really need help ASAP

Answers

Answer:

Step-by-step explanation:

90(5/6)

450/6

75

9514 1404 393

Answer:

  75

Step-by-step explanation:

90 = 6 × 15

There are 15 6-day periods in 90 days. The gardener will have mowed ...

  15 × 5 = 75

times in those 15 periods.

He will mow 75 times in a 90-day period.

__

If you like, you can set up a proportion for the unknown number of mowings (m).

  mows/days = m/90 = 5/6

Multiply by 90 to solve for m.

  m = 90(5/6) = (90/6)(5) = 15(5) = 75 . . . . . . this should look like the above

The price of a sweater was reduced from $20 to $12. By what percentage did the price of the sweater decrease?

Answers

Answer:

40%

Step-by-step explanation:

20-12 = 8 difference

8/ 20  x100 = the percentage change  = 40%

50 POINTS I NEED THIS ASAP
The total profit function,​ P(x), for a company producing x thousand units is given by P(x)=−2x2+38x−120. Find the values of x for which the company makes a profit. [Hint: The company makes a profit when P(x)>0.] Explain and justify your answer.

Answers

Answer:

(5,15)

Step-by-step explanation:

Check x = 0,the P(x)=-225 : not an inequality solution

Check x = 10 to get -3*-5*5> 0 solutions in 5< x < 10

Check x = 20 to get -3*+5*+15<0 so no solutions in (15,+inf)

Ans: Profit for (5,15)

10 points plz help!!

Answers

Answer:

38 is pounds, 84 is kilograms, 6 is ounces, 170 is grams, 180 is gallons, 680 is liters, 29 is cubic meters, 1024 cubic feet. If right plz give brainliest.

38 pounds 84 kilograms
6 ounces 170 grams
180 gallons 680 liters
29 cubic meters 1024 cubic feet

the root of equation 1/x-1 +1/x-2 = 1/x-3

Answers

Answer:

The roots of the quadratic equation  are  , .

Step-by-step explanation:

The roots of the quadratic equation  are  , .

Step-by-step explanation:

As given the equation in the form

Simplify the above equation

(x-2)-x = 3x × (x-2)

x-2 - x = 3x² - 6x

3x² - 6x + 2 = 0          

As the equation is written in the form ax² + bx + c = 0

a = 3 , b = -6 , c = 2

Put all the values in the above equation

Thus

Therefore the roots of the quadratic equation  are  , .

You are designing a simulation for which day of the week people are born. You assign numbers to each day of the week, from, Sunday =0 through Saturday =6. You decide to use a sample size of 20.

Use the random number table to conduct your first trial, working from left to right.
39017 66124 37046 59285 15208 47185 76426 23648 51239 88346 59268 71307 37420 69307 98648 45960

Which chart matches the results from your first trial?

Answers

Answer:

In case you have not gotten the answer yet it is the chart, -- 3,3,3,2,3,3,3

Step-by-step explanation:

I took the quiz

solve 4x^2 +x-3 using the box method

Answers

Answer:

(4x - 3)(x + 1)

Step-by-step explanation:

=4x² + x - 3

=4x² + 4x - 3x - 3

=4x(x + 1 ) - 3( x + 1)

=(4x - 3)(x + 1)

To use the box method set the equation up like the picture I attached by replacing 2x+1 and x+3 for your equation. Then you multiply it like a multiplication chart. So 4x^2 times x= 4x^3, and put it inside the box and continue with the rest. Hope this helps!

Please help me!! I WILL LOCE YOU(30 points) Haah

Answers

Answer:

554 cm

Step-by-step explanation:

because I just did this

Select all line segment measurements below that could NOT be used to form a triangle. a triangle with the side measurements of 3, 4, and 6 inches a triangle with the side measurements of 2, 3, and 5 inches a triangle with the side measurements of 3, 3, and 4 inches a triangle with the side measurements of 5, 5, and 5 inches a triangle with the side measurements of 4, 4, and 8 inches a triangle with the side measurements of 7, 8, and 16 inches

Answers

Answer:

a triangle with the side measurements of 2, 3, and 5 inches

a triangle with the side measurements of 7, 8, and 16 inches

a triangle with the side measurements of 4, 4, and 8 inches

Step-by-step explanation:

A triangle is a polygon shape with three sides and three angles. There are different types of triangles such as isosceles triangle, scalene triangle, equilateral triangle and right angle triangle.

The triangle inequality theorem states that the sum of any two sides of a triangle is always greater than the third side.

For a triangle with the side measurements of 3, 4, and 6 inches:

3 + 4 > 6. This can be a triangle

For a triangle with the side measurements of 2, 3, and 5 inches:

2 + 3 is not greater than 5, hence it cannot be a triangle

For a triangle with the side measurements of 3, 3, and 4 inches:

3 + 3 > 4. This can be a triangle

For a triangle with the side measurements of 5, 5, and 5 inches

5 + 5 > 5. This can be a triangle

For a triangle with the side measurements of 4, 4, and 8 inches:

4 + 4 is not greater than 8, hence it cannot be a triangle

For a triangle with the side measurements of 7, 8, and 16 inches:

7 + 8 is not greater than 16, hence it cannot be a triangle

y = 6
2x - y = 14
Solve using substitutions

Answers

Answer:

(10,6) in point form

and in equation form its x=10,y=6

Step-by-step explanation:

Please help me. Thank you so much

Answers

Answer:

x = 10

Step-by-step explanation:

Helpppppppppppppppppppppp

Answers

Answer:

20

Step-by-step explanation:

(2x)° + (2x)° + (6x - 20)° = 180°

10x = 200

x = 20

if u take my points i will hack you but PLZ i need help I'm taking a math test and frgt to study if I get all four correct I will give you brainliest

Answers

Answer:

ill just do the first page

Step-by-step explanation:

3(x-8)=5x+6

3x-24=5x+6

3x-5x-24=6

3x-5x=6+24

-2x=6+24

-2x=30

x=-15

4x+20+2(x-7)=0

4x+20+2x-14=0

6x+20-14=0

6x+6=0

6x=-6

x=-1

What goes under the boxes? Help pls

Answers

Answer: -1/25 / -1/5 / 1/25

Step-by-step explanation:

The map of a park shows that the swings are 9 inches away from the monkey bars. The scale of the map is 2 inches represent 5 meters. How far apart are the actual swings and monkey bars?

Answers

Answer:

22.5m

Step-by-step explanation:

IF 2 inches = 5 meters

9 inches =( 9 x 5) / 2 = 22.5 meters

What would Hope be attempting to find if she writes d(4) = 78(4)?

Answers

Answer:

d=78

Step-by-step explanation:

so you would divide both sides of the equation by 2×2

d×4÷(2×2)=78×4÷(2×2) <- you would do this to get rid of 4 so you cna get the d alone

d=78×4÷(2×2) <- thats the other side of the equation btw

then it would be:

d=39×2

d=78

2(x + 4) − 1 = 2x + 7

Answers

Answer:

All real numbers are solutions to this problem.

Step-by-step explanation:

I) Simplify:

2(x + 4) - 1 = 2x + 7

x + 4 - 0.5 = x + 3.5 (Divide by 2)

x + 3.5 = x + 3.5 (Simplify x + 4 - 0.5)

x = x

II) Conclusion:

Any real number will work as a solution.

True for all x


2x+7=2x+7
-7 -7
2x = 2x
-2x -2x
0=0

maybe that seems right

Determine if (3,-4) is a solution to y < 2x – 5.

Answers

You would plug in the ordered pair into the equation.

1. Put the y value from the ordered pair in the y spot, and the x value in the x spot.

2. add up the x side

Does it equal the y side?

Im a bit confused as the question says “&lt” at least on my end? I’m not sure if that’s just the way it ended up being written or if it means something. Sorry if my answer doesn’t apply :(. But if it does, I hope it helps!

To get a student learner's permit to drive in New Jersey, an individual must be at least 16 years old. Let, a, represent the age at which a person gets a student learner's permit to drive in New Jersey. Using the variable defined above, write an inequality that represents the statement above.

Answers

Answer:

[tex]a\geq 16[/tex]

Step-by-step explanation:

Let [tex]a[/tex] represents the age at which a person gets a student learner's permit to drive in New Jersey.

Also, an individual must be at least [tex]16[/tex] years old to get a student learner's permit to drive in New Jersey.

So, inequality is [tex]a\geq 16[/tex]

(Inequality explains a relationship of greater than or greater than or equal to or less than, or less than or equal to between two mathematical expressions)

Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

13

Step-by-step explanation:

Calculate the distance d using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = (- 4, - 6) and (x₂, y₂ ) = (- 9, 6)

d = [tex]\sqrt{(-9+4)^2+(6+6)^2}[/tex]

   = [tex]\sqrt{(-5)^2+12^2}[/tex]

   = [tex]\sqrt{25+144}[/tex]

   = [tex]\sqrt{169}[/tex]

   = 13

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