factorise 49m²-84mn+36n² using the identity x²+(a+b)x+ab=(x+a)(x+b)​

Answers

Answer 1

Answer:

(7m-6n)(7m-6n)

Step-by-step explanation:

Given the expression 49m²-84mn+36n², this can also be written as;

49m²-84mn+36n²

= 7²m² - 84mn + 6²n²

= (7m)²-2*7m*6n+ (6n)²

= (7m-6n)²

= (7m-6n)(7m-6n)

Hence the expanded form is  (7m-6n)(7m-6n)


Related Questions

1) The regular price of a shirt is $15. A store is offering a discount of 30%. What is the
discount price of the shirt? [Think: what are you finding, the part (discount), the percent,
or whole (original price)]

Answers

Answer:

$10.50

Step-by-step explanation:

15 times 30 = 4.5

15-4.5=10.50

The vertices of a swimming pool are E(5, 5), F(5, 20), G(35, 20), and H(35, 5). The endpoints of a line that divides the pool into two sections are J(15, 5) and K(15, 20). The coordinates are measured in meters. What is the area of each section?

Answers

Answer:

Step-by-step explanation:

Translate this sentence into an equation. The sum of 11 and Greg's height is 60. Use the variable g to represent Greg's height.

Answers

Answer:

g+11=60

Sum=11

Sum= +

Height is =60

need help please show your work
find the missing angles of triangles ​

Answers

Answer:

angle: 71

x = -3

Step-by-step explanation:

step 1: 180-(55+54) = 71

step 2: x+74=71 (subtract 74 from both sides)

step 3: x=-3

step 4: -3+74=71

A 5 foot tall pole casts a 3 1/3 foot shadow. At the same time an oak tree casts a 20 foot shadow. How tall is the tree?

Answers

Answer:

30 feet tall

Step-by-step explanation:

Set up a proportion where x is the height of the tree

[tex]\frac{5}{3\frac{1}{3} }[/tex] = [tex]\frac{x}{20}[/tex]

Cross multiply and solve for x:

100 = 3[tex]\frac{1}{3}[/tex]x

30 = x

So, the tree is 30 feet tall

Helppppppppp. Me. Plzzzzzz

Answers

Answer:

the answer would be A because the x's are 1's

Tell whether each statement about the expression 5y + 9 is True or False

The number 5 in the expression is a constant.
The expression has one variable term.
The variable in the expression is y.
The number 5 is not a coefficient in the expression.
The expression has three terms.

Answers

Answer:

1st one is false

the second one is true i think ;-;

3rd is true

4th is false

5th is also false i think

Step-by-step explanation:

a kindergartden class has 9 girls and 11 boys in class . what is the percent of the class is girls

Answers

Answer:45%

Step-by-step explanation:

i need help pleases and thanks

Answers

Answer:

associative

Step-by-step explanation:

hope dis helps

Option 1 commutative hope this help

HURRYYYYYYY

Fill in the blank with the correct number.
A number is divisible by
divisible by four.
if the last two digits form a number
A) 3
B) 4
C) 6
D) Both 3 and 4

Answers

Answer:

D

Step-by-step explanation:

the answer is D: Both 3 and 4

D both 3 and 4 I just copied the person in front of me sorry

supppose v varies direcly as g, and v= 36 when g=4. Find v when g =11

Answers

Answer:

v = 99

Step-by-step explanation:

Given v varies directly as g then the equation relating them is

v = kg ← k is the constant of variation

To find k use the condition v = 36 when g = 4 , then

36 = 4k ( divide both sides by 4 )

9 = k

v = 9g ← equation of variation

When g = 11 , then

v = 9 × 11 = 99

What is the greatest common factor of 7, 35, and 28?

Answers

Answer:

7

Step-by-step explanation:

Answer: 7

Step-by-step explanation:

WILL GIVE BRAINLIEST PLEASE HELP
Ryan and Eduardo are saving up money for a vacation to Italy. They have calculated that the trip will cost at least $900. If they’ve already saved $270, how much more do they need to save in order to have enough for the trip? Write an inequality and solution set

Answers

Answer:

they need to save $630 in order to have enough for the trip

270 + 630 = $900

elyse has $18 on a gift card that she can use to rent movies online . the graph at the right shows the amount of money remaining on her gift card based on the number of movies she rents . find the unit rate of the graph , and describe what it means in the context of the situation.

Answers

Ok brb I have my anserers OMGG

Identify the next three terms of the sequence below:
-6, -10, -14,...

Answers

Answer:

-18, -22, -26, -30

Step-by-step explanation:

add negative 4 each time

What does 13÷1722 equal to and the Remainder?

Answers

Answer:

132 and 4 is the remainder

Step-by-step explanation:

one more thing its 1722÷13 not that cause if that is the question the answer is 0

13/1722 ~ 0.007549361

How long will it take a rocket traveling at 8 km/s to reach 20 km? (please include the equation)

Answers

Answer:

Step-by-step explanation:

Use the second kinematic formula

[tex]x_f-x_i=V_it+\frac{1}{2}at^2\\20=8t+\frac{1}{2}(9.8)t^2\\4.9t^2+8t-20=0[/tex]

Apply the quadratic formula to solve for time. The negative value does not matter because time cannot be negative, its impossible.

I got a value of t = 1.363 seconds

I would really appreciate some help! Im being timed right now :( tysm! :)

Answers

Answer for 7: C

Answer for 9: A

Step-by-step explanation for 7:

Because the variable is an exponent, we know there are no real numbers which cannot be placed in the exponent. Therefore, the domain is all real numbers.

Step-by-step explanation for 9:

Test a few values for x. Notice as the x value gets higher, the y value gets exponentially higher. Notice as the x value gets lower, the y value approaches 0, but no value of x will have y equal to or less than 0. Therefor, the asymptote, or line that cannot be crossed is 0 - making A the correct solution.

i need help please and thanks

Answers

Answer:

the answer is associative

Step-by-step explanation:

please help me ASAP this is hard

Answers

Answer:

31/40

Step-by-step explanation:

you only got 9 right side up, so you'll have to add the numbers that aren't right side up together and divide it by 40 since the total tosses is 40.

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Find the slope of each linear graph to solve the riddle.

( i just need help with V)

Answers

Answer:

slope=15÷10=1.5 or 3/2

Step-by-step explanation:

slope=rise÷run

10 right 15 up

slope=15÷10=1.5 or 3/2

The slope is calculated as the ratio of the rise and run. The slope of the given line will be [tex]\dfrac{3}{2}[/tex].

In mathematics, slope refers to the measure of the steepness or inclination of a line. It describes how much a line slants or rises/falls as it moves horizontally.

A positive slope means the line is upward-sloping, rising from left to right, while a negative slope indicates a downward-sloping line.

The slope can be calculated by the ratio of the rise and the run. The points on the given graph are A(10,30) and B(20,45). The slope is calculated by the formula written below,

[tex]m = \dfrac{y_2-y_1}{x_2-x_1}[/tex]

The slope of the line is calculated below

[tex]m = \dfrac{y_2-y_1}{x_2-x_1}\\m = \dfrac{45-30}{20-10}\\m = \dfrac{3}{2}[/tex]

The slope of the line will be  [tex]\dfrac{3}{2}[/tex].

To know more about slope follow

https://brainly.com/question/14511992

#SPJ6

OMG PLEASE HELP!! DONT ANSWER IF YOU DONT KNOW ;-;

Which statement is true


-5.3 > 3.5
-2 > -2.6
- 7.09 < -7.10

Answers

-2 is greater than -2.6 is the answer

A blueprint of a house has a scale of 1 in = 6 ft. the living room has dimensions (width x length) of 18 ft by 24 ft. What are the dimensions on the blueprint of the living room? (use 2 different proportions; one for width and one for length)



a
w = 108 in, l = 144 in
b
w = 3 in; l = 4 in
c
w = 3 in; l = 144 in
d
w = 3 in; l = 4 in

Answers

I would say the answer is w = 3 in; l = 4 in

Write the equation of the line in slope-intercept form: y=mx+b
Given: Point (-3,-1) Slope: 0

Answers

Answer:

Y=-1

Step-by-step explanation:

The slope of line is zero

Answer siiiiiiiii


Explanation

please help quick!! pythagorean theorem!

Answers

Answer: x=3

Step-by-step explanation:

4^2+b^2=5^2    25-16=9 sqrt of 9 is 3

4^2+b^2=5^2
16+b^2=25
25-16=9
Square root of 9=3
X=3

in the diagram the measure of angle one is 3X the measure of angle two is 12 X what is the measure of angle 4

Answers

Answer:

144°

Step-by-step explanation:

m<1 =3x

m< 2= 12x

1&2 are supplementary angles, so

3x+12x= 180

15x=180

x= 12°

measure of angle 4 equals the measure of angle 2

because they're head opposite angles

m<4= 144°

Between what 2 consecutive numbers does the square root of 15 fall?

1. 15
2. 4
3. 16
4. 3
5. 14
6. 2
7. 5

Answers

Answer: In between 3 and 4

Step-by-step explanation:

Brainliest pllllzzzzz

in between 3 and 4!

BRAINLIEST PLEASE!!

what fraction is equivalent 4/4

Answers

Answer:

the answer is one

Step-by-step explanation:

1.......

Answer:

A fraction like 4/4 is called an "improper fraction". An improper fraction is one in which the numerator (the top number) is greater than or equal to the denominator (the bottom number). Another example of an improper fraction is 8/7 in which the numerator, 8, is greater than the denominator, 7.

Step-by-step explanation:

Convert 14% to an
equivalent decimal.

Answers

14% to a decimal is .14, you move the percent sign two places to the left always
0.14
the answer to it

What is the slope of this line?

(sorry for the quality.) ​

Answers

Answer:

slope = - 1

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 8,6) and (x₂, y₂ ) = (0, - 2) ← 2 points on the line

m = [tex]\frac{-2-6}{0+8}[/tex] = [tex]\frac{-8}{8}[/tex] = - 1

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