Factorise fully the following:
a) x² - 2x
b) 6x2 + 12x
c) 3-9x
d) 4x + 28x

Answers

Answer 1

Answer:

Please find pdf attached

Step-by-step explanation:


Related Questions

Please help me with this please!!

Answers

Answer:

D

Step-by-step explanation:

PLEASE HELP ME MATCH!

Answers

Answer:

Step-by-step explanation:

I hope it helps you ,

Your answer is in image format,

If events don't occur at the same time, then they are mutually exclusive.


If the number of elements in a sample space is 6, then a die is rolled once.

If heads or a tails occurs, then a coin is tossed.

please help i have more questions btw

Answers

The picture is blurry I can’t see

Answer:

B [tex]1/4^2[/tex] and A [tex]4^1/4^3[/tex]

Step-by-step explanation:

Two forces with magnitudes 300 pounds and 450 pounds, with an angle of 60° between them, act upon an object. What is the approximate magnitude of the resultant force?

Answers

The resultant force in the example presented is approximately 774 pounds.

What is magnitude?

The magnitude or size of a mathematical item defines whether it is larger or smaller than other objects of the same kind in mathematics.

Formally speaking, the size of an object is the visible outcome of an ordering—of the class of objects to which it belongs.

Consider the following scenario: the force is 10 N in the east.

The direction is indicated by "towards the east," while the force is indicated by "10."

Magnitude can be thought of as simply the "value" or "amount" of any physical quantity.

So, an object is under the influence of two forces with respective magnitudes of 300 pounds and 450 pounds and an angle of 60 degrees between them.

F₁=300 pounds, F₂=450 pounds and θ=60°

Fr=√300²+450²+2×300×450×cos60°

= √90000+502500+13500×0.5

= √90000+502500+6750

= √599250

= 774 pounds

Therefore, the resultant force in the example presented is approximately 774 pounds.

Know more about magnitude here:

https://brainly.com/question/24468862

#SPJ1

Answer: C. 653.91 pounds.

Step-by-step explanation:

A certain standardized tests math scores have a bell-shaped distribution with a mean of 530 and a standard deviation of 105. Complete part (a) through (c). (a) what percentage of standardized test scores is between 215 and 845. (b) what percentage of standardized test scores is less than 215 or greater than 845. (c) what percentage of standardized test scores is greater than 740.

Answers

It’s C because I guess to get more points to answer questions

HELPPPP PLEASE ANSWER THIS CORRECTLY AND U WILL GET BRAINLIEST WHAT IS THE SOLUTION TO THIS PROBLEM

Answers

Answer:

The other equation should be y= -5/3x +3 comment

if you have any questions

Step-by-step explanation:

Brainliest?!?!?

Answer:

Step-by-step explanation: ok so if 5x + 3y =9

then you have to subtract 3-x15=  and then you will get your answer

The measures of two complementary angles are described by the expression(13y+12) and (20y+12). Find the measures of angles​

Answers

Step-by-step explanation:

complementary angles means that both of them together = 90

13y +12 + 20y + 12 = 90

add all y together and numbers together

33y + 24 = 90

solve for y

33y= 66. y= 2

now let's get the measurements of the angles

13(2) + 12= 38

20(2) + 12= 52

what is the formula for finding the measure of each interior angle of a regular polygon

50pts!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

................................sorry

Answer:

180(n - 2)

-------------

      n

Step-by-step explanation:

Please anyone help its due will give brainlist please

⦁ Explain the difference between a linear expression and a linear equation. Use your Reference Book or https://www.mathsisfun.com/.
⦁ Write two different linear expressions that are equivalent (both expressions should be equal but not look the same).
⦁ Show or explain why the two expressions in part b are equivalent.

Answers

Answer:

An expression is a number, a Variable or a combination of numbers and variables and operation symbols. An equation is made up of two expression connected by an equal sign I hope this help

please help me with this question​

Answers

Answer

777

Step-by-step explanation:

jnimimimimimim000

Answer: 777

Hope this helps!!

Sorry if it's not correct!!

APPLICATION
3. Use the first principle of derivatives to determine the equation of tangent to the
curve y = 1/radical7x at
x = 5

Answers

Answer:

[tex]\displaystyle y - \frac{\sqrt{35}}{35} = \frac{-\sqrt{35}}{350}(x - 5)[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Algebra I

Coordinates (x, y)

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinatey₁ - y coordinatem - slope

Algebra II

Exponential Rule [Rewrite]: [tex]\displaystyle b^{-m} = \frac{1}{b^m}[/tex]

Calculus

Derivatives

The definition of a derivative is the slope of the tangent line.

Derivative Notation

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Chain Rule: [tex]\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)[/tex]

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle y = \frac{1}{\sqrt{7x}} \\x = 5[/tex]

Step 2: Differentiate

[Function] Rewrite:                                                                                         [tex]\displaystyle y = \frac{1}{(7x)^\frac{1}{2}}[/tex][Function] Rewrite [Exponential Rule - Rewrite]:                                         [tex]\displaystyle y = (7x)^{-\frac{1}{2}}[/tex][Derivative] Chain Rule [Function]:                                                               [tex]\displaystyle y' = \frac{-1}{2}(7x)^{-\frac{1}{2} - 1} \cdot \frac{d}{dx}[7x][/tex][Derivative] Simplify:                                                                                     [tex]\displaystyle y' = \frac{-1}{2}(7x)^{-\frac{3}{2}} \cdot \frac{d}{dx}[7x][/tex][Derivative] Basic Power Rule:                                                                     [tex]\displaystyle y' = \frac{-1}{2}(7x)^{-\frac{3}{2}} \cdot 1 \cdot 7x^{1 - 1}[/tex][Derivative] Simplify:                                                                                     [tex]\displaystyle y' = \frac{-7}{2}(7x)^{-\frac{3}{2}}[/tex][Derivative] Rewrite [Exponential Rule - Rewrite]:                                       [tex]\displaystyle y' = \frac{-7}{2(7x)^{\frac{3}{2}}}[/tex]

Step 3: Find Slope of Tangent Line

Substitute in x [Derivative]:                                                                           [tex]\displaystyle y'(5) = \frac{-7}{2[7(5)]^{\frac{3}{2}}}[/tex][Tangent Slope] [Brackets] Multiply:                                                             [tex]\displaystyle y'(5) = \frac{-7}{2[35]^{\frac{3}{2}}}[/tex][Tangent Slope] Evaluate exponents:                                                         [tex]\displaystyle y'(5) = \frac{-7}{2(35\sqrt{35})}[/tex][Tangent Slope] Multiply:                                                                             [tex]\displaystyle y'(5) = \frac{-7}{70\sqrt{35}}[/tex][Tangent Slope] Simplify:                                                                             [tex]\displaystyle y'(5) = \frac{-1}{10\sqrt{35}}[/tex][Tangent Slope] Rationalize:                                                                         [tex]\displaystyle y'(5) = \frac{-\sqrt{35}}{350}[/tex]

Step 4: Find Tangent Line Equation

Point (x, y)

Substitute in x [Function]:                                                                             [tex]\displaystyle y(5) = \frac{1}{\sqrt{7(5)}}[/tex][Function] [√Radical] Multiply:                                                                     [tex]\displaystyle y(5) = \frac{1}{\sqrt{35}}[/tex][Function] Rationalize:                                                                                   [tex]\displaystyle y(5) = \frac{\sqrt{35}}{35}[/tex]Define point:                                                                                                 [tex]\displaystyle (5, \frac{\sqrt{35}}{35})[/tex]

Equation

Substitute in variables [Point-Slope Form]:                                                 [tex]\displaystyle y - \frac{\sqrt{35}}{35} = \frac{-\sqrt{35}}{350}(x - 5)[/tex]

Topic: AP Calculus AB/BC

Unit: Derivatives

Book: College Calculus 10e

Liza gets paid $5.25 an hour to babysit her little cousins. Last weekend, she watched them for three hours on Friday, nine hours on Saturday, and seven hours on Sunday. How much money does her aunt owe her for her babysitting services? A. $99.85 B. $99.75 C. $95.00 D. $63.00

Answers

Answer:

B. $99.75

Step-by-step explanation:

The expression is 5.25(3+9+7) which is 99.75

Answer:

c

Step-by-step explanation:

A hat costs x dollars and you can use the expression x -0.20x to find the cost of the hat
with a 20% discount. What is another expression that would represent the cost of the
hat after the discount?

Answers

You can think of a 20% discount as only 80% of the original cost or:
Cost = 0.80x

Find two numbers whose sum is 44 and whose difference is 6.
smaller number
larger number

Answers

x+ y = 44
x - y = 6
—————
2x = 50

x = 25
y = 44-x = 19

How many kilometers are in 3 centimeters?

Answers

Answer:

0.00003km

....................

kilo means 1000

and centi means 1/100

please help!!!!!! i will also give

Answers

Answer:

22. 108 cm²

23. 100 cm²

Step-by-step explanation:

The area of a trapazoid is:

A = (a+b)/2 (h)

input the values:

22. (6+12)/2 (6)

23. (7+18)/2 (4)

Hope this helped :)

a landscaper is designing a park in the shape of a kite with a fountain in the center, F. AK = 28 ft, PF=48 ft and F=32 ft. He wants to install a walkway around the border of the park. The inside edge of the walkway will be edged with brick. The bricks are purchased in linear feet. How many linear feet of bricks should he purchaase?

Answers

Answer:

169.9

Step-by-step explanation:

Help me pls pls pls

Answers

Answer:

1,3

Step-by-step explanation:

1,3

1,3 is the answer __________

17-(8 to the power of 3 - 45) times 7 times 2 - 1324

Answers

Answer:

-7845

Step-by-step explanation:

17-(8 to the power of 3-45) times 7 times 2 -1324=-7845

Roger made a table showing how he spent his time in one day. How many days
will go by before Rodger has slept the equivalent of one day. Explain how you found your answer!
Data:
work : 1/3 day
sleep : 3/8 day
meals: 1/8 day
computer : 1/6 day

PLSSS.... Answer must be whole #

Answers

Answer:

Roger will have to sleep 2.667 days.

Step-by-step explanation:

If Roger sleeps 3 / 8 of a day in one day.

Then for Roger to sleep the equivalent of one day he will have to sleep

=

1. If AABD - AHGE and AC and HF are angle

bisectors, find x.

B

G

F

24

. م

X

35

E

14

H

Answers

Answer:

9.6

Step-by-step explanation:

Find the diagram attached. Using the similarity theorem of triangles

AC/AD = FH/EH

Given

AC = 24

AD = 35

FH = x

EH = 14

Substitute into the formula

24/35 = x/14

Cross multiply

35×x = 24×14

35x = 336

x = 336/35

x = 9.6

Hence the value of x is 9.6

how to find X in a parallelogram

Answers

Answer:

X=7

Step-by-step explanation:

15-8

Write an equivalent
expression for
7(3 – X) + 15x

Answers

Answer:

21+8x

Step-by-step explanation:

7(3 – X) + 15x

21-7x+15x

21(-7x+15x)

21+8x

Answer:

-7x+15x+21

Step-by-step explanation:

Which expression is equivalent to-6(-2/3+2x)
A.-4-12x
B.- 4+2x
C. 4-12x
D. 4 + 12x

Answers

Answer:

4-12x

Step-by-step explanation:

-6(-2/3 + 2x)

Expand the bracket

12/3 - 12x

4 - 12x

Answer:

The Answer is C

In long division what is 246/8

Answers

Answer:

the answer is 30.75 or 30 1/4

Step-by-step explanation:

8 can't go into 2 so 8 will go into 24

8 can go into 24 3 times thats our first digit

then multiply 8 times 3 you will get 24 write that under 24

then subtract 24 from the original 24 you will get 0

bring down the 6 to where the 0 is try to divide 8 into three

because you can't u will add a 0 next to the three

that is how you get the 30

thats as much as I know sorry I used the calculator

Write a rule for the sequence. 1/9, 1/3, 5/9 Pls hurry Pls S's S's Sissies S's See fast

Answers

nth term of the sequence = (2n-1)/9

can smby help me plz ?!

Answers

Answer:

i need these points sorry

Step-by-step explanation:

What is 4^0 in exponential form?

Answers

Anything to the power of 0 is just 1

the area of a certain desert is nine times the area of another desert. if the sum of their areas is 30,000,000 sq miles. find the area of each. ​

Answers

So the sum of both deserts is 30000000 and one is 9 times more than the other, it’s a 1:9 ratio. 9+1 is ten and 30000000/10 is 3,000,000. That’s the area of the smaller desert. You multiply 3 million by 9 and get 27,000,000 sq miles for the larger desert. Hope that makes some sense! :)

write an equation for the line that passes through (-4,1) and (-8,6)

Answers

Answer:

[tex]y=- \frac{5}{4}x-4[/tex]

Step-by-step explanation:

1) if the A has coordinates (-4;1) and B - (-8;6), then it is possible to write the formula of the required line:

[tex]\frac{X-X_A}{X_A-X_B} =\frac{Y-Y_A}{Y_B-Y_A};[/tex]

2) if to substitute the coordinates given in the condition, then:

[tex]\frac{X+4}{-8+4} =\frac{Y-1}{6-1};[/tex]

3) finally, the required equation of the line is:

-4y=5x+16; ⇔y= -5/4 x-4 (slope-intersection form)

PS. note, the suggested solution is not the only one.

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