f(-2) when f(x)=25x-4​

Answers

Answer 1

Answer:

25x4 - 2

Step-by-step explanation:

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  25  is the square of  5

Check : 2 is not a square !!


Related Questions

The temperature at 6.00 am was - 12 the temperature increased by 1/2 each hour for 6 hours what was the temperature in degrees Fahrenheit at noon

Answers

Answer: -9 degrees Fahrenheit

Step-by-step explanation:

Given: Temperature at 6:00 AM = -12 degrees Fahrenheit

Temperature increased each hour = [tex]\dfrac12[/tex] degrees Fahrenheit

Temperature increase in 6 hours = [tex]6\times\dfrac12=3\text{ degrees Fahrenheit}[/tex]

Temperature at noon = Temperature at 6:00 AM+Temperature increase in 6 hours

= -12+3 degrees Fahrenheit

= -9 degrees Fahrenheit

Hence, the temperature in degrees Fahrenheit at noon= -9 degrees Fahrenheit

Sam kept track of the number of problems he was assigned for his math homework on the box plot. A number line goes from 0 to 28. The whiskers range from 4 to 26, and the box ranges from 11 to 26. A line divides the box at 15. Which statement must be true according to the box plot?

Answers

Answer:

I think its A

The data is symmetric and shows that half of the assignments contained 15 problems or fewer.

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

PLEASE HELP WILL GIVE THE CROWN!!!
Find the length of the line segment NQ.

Answers

The length of NQ would be 15 centimeters

40 fl oz = _ c 9 gal=__ qt

Answers

40 fl oz = 5 c and 9 gal = 36 qt

The measure of a side of a square is x units. A new square is formed with each side 6 units longer than the original square's side Write an expression to represent the are of the new square Hint Draw the new square and count the squares and rectangles1 Original Square​

Answers

(x+6)(x+6) is the equation to find the area of the second square

50 ml of water is poured into a beaker. 50 ml of another liquid is poured into the same beaker. The beaker is left undisturbed for some time. After some time, it is observed that the liquid forms a clear layer on top of water. If the density of water is 1 g/cc, what could be the density of the second liquid?

Answers

Answer:

Well if you combined 50 ml to a beaker that already had 50 ml of water in it total you have 100 ml of water. The density of the second liquid would be the same as the first beaker but sense they are combined it would be 2 g/cc.

Step-by-step explanation:

Olivia has $9,050 in a savings account that earns 2.5 % annually. How much will she earn in interest in 2 years?​

Answers

Answer:

452.5

Step-by-step explanation:

9050 x 0.025

226.25 x 2

452.5

452.5 Hope it helps !!!

8x2 - 6x + 3 – 2x – 10x?

Answers

Answer:

8[tex]x^{2}[/tex] + 3 + -6x

Step-by-step explanation:

First we need to find the like terms so that we could add them. In this case the like terms are,

1. 6x , -2x , -10x

So, these are the only terms that we can add in this expression.

Hence,

=> 8[tex]x^{2}[/tex] + 3 + (6x - 2x - 10x)

=> 8[tex]x^{2}[/tex] + 3 + -6x

And this is as simple as this expression can go until we find the value of "x" which is not yet told.

Hope my answer helped.

Answer:

☺️

Step-by-step explanation:

Calculator mo.. Baka maka tulong sayo. God bless

What is 5 divided by 6 rounded to three significant figures? pls help ASAP.

Answers

Answer:

0.833

Step-by-step explanation:

5/6 = 0.83333333

Only the 8 and 3's are Significant Figures, so the answer is 0.833.

Geometry
The sides of four triangles are given.
Triangle A: 6 cm, 8 cm, and 10 cm
3 2
3
Triangle B:
10
-in
in, in, and
Triangle C: 8 ft, 15 ft, and 17 ft
Triangle D: 0.32 mm, 0.96 mm, and 1 mm
gin
Which of the four triangles is obtuse?
В у

Answers

Answer:

12

Step-by-step explanation:

write the equation of the line with a slope of 8, through the point (7,1)

Answers

Answer:

Y = 8x - 55

Step-by-step explanation:

4 pairs of shoes cost $80. What is the cost of 7 pairs of shoes?

Answers

Answer:

140

Step-by-step explanation:

80 Divied by 4 is 20

SO Each Pair Is 20

7 x 20 = 140

Answer:

140

Step-by-step explanation:

It would be $20 a pair.

Will give brainliest to decent answer!

Answers

Answer:

1. Domain: [0,120] Range: [0,300]

2. f(30) = 200; After 30 minutes, the altitude of the balloon is 200 feet.

3. x = 10; When the altitude of the balloon is 100 feet, the time has passed is equal to 10 minutes.

4. at 20-40 minutes

5. 70 minutes

6. x: {40 ≤ x ≤ 90}

Step-by-step explanation:

1. The line is between 0 and 120 on the x-axis and is between 0 and 300 on the y-axis.

2. When x = 30, y equals 200.

3. When y = 100, x equals 10.

4. The line stays on 200 for 20 minutes, between 20 and 40.

5. Between 30 and 100 minutes, the altitude is greater than 200.

6. All x values between 40 and 90 (including 40 and 90 too) matches with 300 as their y-coordinate.

Answer:

.1:

.2:

.3:

.4: At around 20 to thirty minutes

.5: From 20 to 90 minutes

.6:

Step-by-step explanation:sorry i dont know the others

What is the additive inverse of -10?

Answers

Answer:

The inverse with respect to addition; the opposite. The additive inverse of 12 is −12. The definition of an additive inverse is the number needed to bring a negative number to zero. An example of an additive inverse is the number 30 when added to -30. So the additive inverse of -10 is 10

Step-by-step explanation:

Answer: 10

Step-by-step explanation:

To find the additive inverse of a number, all we should do is change its sign. Thus, the additive inverse of a positive number is a negative number, and the additive inverse of a negative number is a positive one. So the additive inverse of -10, which is negative, is positive 10, or just 10.

Identify the independent variable and dependent variable in the situation:
Wait time, w, and the number of people in line to get on a ride, p.
Independent variable
[Choose)
Dependent variable
[Choose ]

Answers

I think the independent variable is the number of people and the dependent is the wait time. I see it as the wait time DEPENDS on how many people are in line. This one is kinda confusing tho

3) You find a jar of quarters on the sidewalk and decide to start collecting them to cash in at the end of the school year.
You are able to find 50 new quarters every week and after 5 weeks you have 350 total quarters.
Write an equation that gives the number of quarters as a function of how many weeks passes.
Need h
Show work
At the end of school (24 weeks) you cash in your quarters. How much money do you have?

Answers

Answer:

I dont rally know

Step-by-step explanation:

try it yourself

Work out the volume of this sphere.
Give your answer to 1 decimal place.
4.7 cm​

Answers

Answer:

434.9 cm³

Step-by-step explanation:

Volume of a sphere: 4/3πr³

Substitute the information to find the volume.

4/3π(4.7)³ = 434.9

Answer:

yep, absolutely mess

Solve the equation:

2m + 45 = 49

Answers

Answer:

m=2

Step-by-step explanation:

2m=4

m=2

if my answer helps please mark as brainliest.

Answer:

2(2)+45=49

Step-by-step explanation:

please mark as brainlest im corrcect.

Which linear equations have one solution? Check all that apply.
5x - 1 = 3(x + 11)
4(x - 2) + 4x = 8(x – 9)
4(x – 6) + 4 = 2(x - 3)
2(x – 4) = 5(x – 3) + 3
2(x - 1) + 3x = 5(x - 2) + 3

Answers

Step-by-step explanation:

linear equations have one solution are:-

5x - 1 = 3(x + 11)

4(x – 6) + 4 = 2(x - 3)

2(x – 4) = 5(x – 3) + 3

Answer:

The linear equations that have one solution are:

5x - 1 = 3(x + 11)

4(x – 6) + 4 = 2(x - 3)

2(x – 4) = 5(x – 3) + 3

Step-by-step explanation:

100% on Edge 2021

simplify the expression p(p^-7*q^3)^-2*q^-3
A.p/q^3
B.p^15/q^9
C.1/(p^9*q^2
D.p^14*q

Answers

Answer:

B.p^15/q^9

Step-by-step explanation:

p(p^-7•q^3)^-2•q^-3

answer: B. p^15/q^9

Write an expression to represent 8 less than the product of 6 and a number, y

Answers

Answer:

6y-8

Step-by-step explanation:

8 less than.... ? - 8

The product of..... (6 (multiply) ?) - 8

6 and a value y....... (6 (multiply) y) - 8

= 6y-8

5
The diagram shows two right-angled triangles. OAB
and OCD
Work out the length of BD. I
7 cm
4 cm
14 cm

Answers

Given:

The diagram shows two right-angled triangles OAB  and OCD.

To find:

The length of BD.

Solution:

Let the length of BD is x.

In triangle OAB and OCD,

[tex]\angle AOB\cong \angle COD[/tex]           (Common angle)

[tex]\angle ABO\cong \angle CDO[/tex]           (Right angle)

[tex]\Delta OAB\sim OCD[/tex]                           (By AA property of similarity)

We know that, the corresponding sides of similar triangles are proportional. So,

[tex]\dfrac{AB}{CD}=\dfrac{OB}{OD}[/tex]

[tex]\dfrac{4}{7}=\dfrac{14}{14+x}[/tex]

[tex]4(14+x)=14(7)[/tex]

[tex]56+4x=98[/tex]

Subtracting 56 from both sides, we get

[tex]4x=98-56[/tex]

[tex]4x=42[/tex]

[tex]x=\dfrac{42}{4}[/tex]

[tex]x=10.5[/tex]

Therefore, the length of BD is 10.5 cm.

How do I find the midpoint n distance of a segment?

Answers

Answer:

use this formula

Step-by-step explanation:

Answer:

find the points for A and C then use those points in this formula to get the answer: M( x1 + x2/2, y1 + y2/2)

Step-by-step explanation:

A rectangle is 8 inches in length and it is 1 and 1/2 foot wide. What is the area 2 possible answers btw lol pls help asap!!

Answers

Answer:

Area = 144 inches2

or

Area = 1 feet2

Steps:

1.5 feet = 18 inches

Area =  l × w

=  8 × 18

=  144 inches2

or

8 inches = 0.66666666666667 feet

Area =  l × w

=  0.66666666666667 × 1.5

=  1 feet2

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PLSSSSS SHOWWW THE WORKKKK!!!!!!!

Answers

2x^3y^4. That how you do this

HELP MEEEEEEEEE PLSS

Answers

Answer: 8/63

Step-by-step explanation:

Just divide it

Answer:

The answer is 8/63.

When u get two fractions like that, u gotta flip the bottom one upside down. So that the bottom number is on the top and the top number is on the bottom.

helpppp me on thisss

Answers

Answer:

B

Step-by-step explanation:

3600/30/16=15/2=7 1/2

pretty sure the answer is b

-4-(-15)
What is the answer

Answers

-46 because I multiplied 14 by -15

the answer is 11

-4 - (-15) = 11

If x= -4 and y=-8, which expression would have a negative value?

A: x+y
B: x-y
C: x*y
D: x/y

Answers

Step-by-step explanation:

x + y will have negative value as

x + y = -4 + (-8) = - 4 - 8 = - 12

Answer:

A

Step-by-step explanation:

They are both negative so you will keep the negative sign when you add.

What is the expanded form of 4,365,421,006

Answers

Answer:4 × 109

+ 3 × 108

+ 6 × 107

+ 5 × 106

+ 4 × 105

+ 2 × 104

+ 1 × 103

+ 0 × 102

+ 0 × 101

+ 6 × 100

Step-by-step explanation:

Answer:

Ok!

Step-by-step explanation:

if you need help with "expanded form" you can always go to calculatorsoup

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