(2a+b)² -(3a+4b)(2a+7b)​

Answers

Answer 1
-2a^2 - 25ab - 27b^2

hope this helps :)

Related Questions

Breanna bought new hiking boots priced at $120 and sales tax is 8%. What is the total cost of the boots after tax?
First, change the percentage to a decimal and find the sales tax amount.

120⋅0.08=$9.60
Now, add the sales tax amount to the original price.

120+9.60=$129.60
The final cost after tax is $129.60.

Answers

120$ 100%
X$ 108%
X=120•108/100
X=129.60$

Find the perimeter of a rhombus with side of 10 m.
perimeter =
m

Answers

Answer:

the perimeter equals 40m

explanation:

P=4a=4 x 10=40m

Find the measurement of angle A.

Answers

Answer:

4) a=35°

Step-by-step explanation:

I can't explain its too complicated

HELPPPP plssssss pls

Answers

Answer:

9. representative because she samples a small group of people to gather representative data for a larger group

10. biased because hes asking people their favorite (opinionated word) sport at a sports game. people at that game most likely are there because it is their favorite

11. 9 students

12. median = 11

HELP!
Find x. Round to the nearest tenth.
64
8

Answers

Answer:

x= 3.5 (nearest tenth)

Step-by-step explanation:

Please see the attached picture for the full solution.

A company rents bicycles to customers. The company charges an initial fee
plus an hourly rate. This table shows the total cost to rent a bicycle for
different amounts of time.
Hours
Total Cost
2
$8
6
$20
10
$32
What is the initial fee, in dollars that the company charges to rent a bicycle?

Answers

The hourly rate is $3 a hour with a $2 initial fee.


Do Now:
The formula to find the area of a triangle is kbxh)
If the base, b, of a triangle is 16 and the height, h, of
a triangle is 4, what is the area of the triangle?
3
Having Trouble?
-Connect with
yesterday's lesson
Il
0:02:26

Answers

Answer:

Area = 32

Step-by-step explanation:

Remark

The standard area for a Triangle is

Area = 1/2 * b * h

Givens

b = 16

k = 1/2

h = 4

Solution

Area = 1/2 * b * h

Area = 1/2 * 16 * 4

Area = 32

what is the approximate diameter of a sphere with a volume 34 cm the third power?​

Answers

Answer:

Diameter = 4cm________________

Step-by-step explanation:

volume = 34cm³

volume = 4/3×π×radius³

34cm³ = 4/3 × 3.14 × radius³

34cm³ = 12.56/3 × radius³

radius³ = 34×3/12.56

radius³ = 8

radius = ³√8

radius = 2cm

diameter = 2×radius

= 2×2

= 4cm

________________

FOLLOW ME PLEASE

I need help please with this question ?????!!!!

Answers

x + 2^2 = 9
x + 4 = 9
move four to the other side, making it negative
x=9-4
x=5
the value of x is 5
Answer:
The answer is -13

GIVING OUT BRAINLIST QUICK! NUMBER 6

Answers

Answer:

40

Step-by-step explanation:

AREA=LW

L₁W₁=40

L₂W₂=160

x(L₁W₁)=L₂W₂

x(L₁W₁)=L₂W₂

x(40)=160

x=40

Which expressions are equivalent to -3(2+7) A: -6+21 or B:-21+6​

Answers

Answer:

None

Explanation:

-3(2+7) = -3×9 = -27

-6+21 = 15

-21+6​ = -15

Hence there is no equivalence

Simplify the expression 8 + d + 4d + 6. *
+
Your answer
__________

Answers

Simplify the expression 8 + d + 4d + 6. The answer is 5d + 14

Which statement describes the relationship between kilograms and grams?


A kilogram is 10 grams.


A kilogram is 100 grams.


A kilogram is 1,000 grams.


A kilogram is 10,000 gram

Answers

Answer:

One thousand grams is equal to one kilogram, therefore C would be your answer

Step-by-step explanation:

Which statement is true?
A. 2(3 + 4) = 2(3) - 2(4)
B. 2(3) + 2(4) = 2(3 + 4)
C. 213 + 4) = 2(3) • 2(4)

Answers

Answer:

B is correct.

11) Ron paid x dollars for a pair of jeans. Tim bought the same pair of jeans for
half the price as Ron. If they paid a total of $45 for the 2 pairs, how much did
each spend on their jeans?
PLEASE HELP 20 POINTS!!

Answers

Answer:

Ron paid $ 30 for his pair of jeans, while Tim paid $ 15 for the same model of jeans.

Step-by-step explanation:

Given that Ron paid X dollars for a pair of jeans, and Tim bought the same pair of jeans for half the price as Ron, if they paid a total of $ 45 for the 2 pairs, to determine how much did each spend on their jeans you must perform the following calculation:

X + 1 / 2X = 45

1X + 0.5X = 45

1.5X = 45

X = 45 / 1.5

X = 30

So Ron paid $ 30 for his pair of jeans, while Tim paid $ 15 for the same model of jeans.

Please help!!!!!!!!!!!!

Answers

i need help ples!!!!!!!!!!!!!!!!!!!!!!!!!!!


Consider two consecutive odd positive integers. If their product is 23 more than their sum, what
are the two integers?

Answers

Answer:

Find two consecutive odd integers whose product is 23 more than their sum. Let x & x+2 be the 2 integers.

Step-by-step explanation:

The value of two consecutive odd positive integers are 5 and 6.

What are Integers?

A whole that can be positive , negative and zero is called integers.

Given that;

The product of two integers is 23 more that their sum.

Let two consecutive odd positive integers are x and x + 2.

Now, By the given condition we can formulate;

x (x + 2) = 23 + x + (x + 2)

x² + 2x = 23 + 2x + 2

x² + 2x = 25 + 2x

x² = 25

Take square root;

x = √25

x = ± 5

Since, Numbers are positive.

So, x = 5

And x + 1 = 5 + 1 = 6

Thus, The value of two consecutive odd positive integers are 5 and 6.

Learn more about the integers visit:

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Interest earned: $40, Principal: $400, Time: 2 years. Find the rate.

Answers

Answer:

840

Step-by-step explanation:

40+400×2=840

5 percent per year

400/10=40

40/2=20

400/20=5

5 percent per year

A boat travels 500 miles in 29
hours (with a constant speed).
How far can it travel in 13 hours
(with the same speed)?

Answers

The boats going at a speed of about 17
So in 13 hours it would have gone 221miles

can someone please explain what I have to do​

Answers

Answer:

16.7 cm

Step-by-step explanation:

Area of a triangle = ½*base*height

Area of the shaded region = area of triangle = 100.2 cm³

base = w

height = 12 cm

Plug in the value into the equation:

½*w*12 = 100.2

6w = 100.2

w = 100.2/6

w = 16.7 cm

At a sale, coats were sold for $11 each. This price was 55% of a coat's original price. How much did a coat originally cost?

Answers

Answer:

The coat originally cost $20.

Step-by-step explanation:

The original cost is of x.

At a sale, coats were sold for $11 each. This price was 55% of a coat's original price.

This meas that:

[tex]0.55x = 11[/tex]

How much did a coat originally cost?

This is the solution for x for the equation above. So

[tex]x = \frac{11}{0.55} = 20[/tex]

The coat originally cost $20.

Answer:

20

Step-by-step explanation:

so when setting up you put 11/x=55/100 then cross multiply. then you should get 55x=1,100 .

divide 1,100 by 55 then you should get your answer which is

x=20 :)

Someone pls help me with question 2

Answers

Answer:

8

Step-by-step explanation:

13 x 1 2/3 = 7.8

7.8 rounds up to 8

Hope this helps :)

Mr.Simon bought 32 feet of rope. He used 7/8 of the rope to secure a tree to a post to prevent it from falling, how many feet did Mr.Simon use?

Answers

Answer:

28 feet

Step-by-step explanation:

32 X7/8= 7X4=28 feet

evaluate the following expression log^6 8. round your answer to two decimal places
A.0.90
B.1.16
C.2.08
D.0.86

Answers

Answer:

B. 1.16

Step-by-step explanation:

Correct!

The following expression [tex]log^6 8[/tex] evaluates to 0.86. So, The correct  answer is 0.86.

We can evaluate the expression log^6 8 as follows:

[tex]log^6 8 = log 8 / log 6 = 0.90309...[/tex] which rounds to 0.86 to two decimal places.

Therefore, the correct answer is D.

Logs:

The exponential function's inverse is known as the logarithm, or log. In other terms, a number's logarithm is the power that a different number, b, must be raised to in order to equal that number.

The expression log x = b represents a logarithm and is symbolized by the symbol "log". This implies that b is equivalent to x when raised to the power of log b.

For instance, since 2 raised to the power of 3 is 8, the logarithm of 8 to the base 2 is 3.

Calculus, statistics, computer science, and other branches of mathematics all make use of logarithms. Numerous more practical uses include determining pH levels and decibel levels.

To know more about expression:

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Find the distance between the two points (-7, 5) (-7, -4)

Answers

Answer:

Step-by-step explanation:

[tex]d^2=(x_2-x_1)^2+(y_2-y_1)^2\\ \\ d^2=(-7+7)^2+(5+4)^2\\ \\ d^2=81\\ \\ d=9[/tex]

help meeeee plsssssss

Answers

Answer:

5.5

Step-by-step explanation:

b/c u see if the first triangle that it is same on both side so that mean ur tiny trapezoids would be 5.5 and also their congruent  

Which polynomials are prime? Check all that apply.

15x2 + 10x – 9x + 7
20x2 – 12x + 30x – 18
6x3 + 14x2 – 12x – 28
8x3 + 20x2 + 3x + 12
11x4 + 4x2 – 6x2 – 16

Answers

15x2+10x-9x+7
8x3+20x2+3x+12
11x4+4x2-6x2-16
Hope this helps !!

Answer:

A

D

E

Step-by-step explanation:


6. Beth is graphing a cube root function. She translate the graph 4 units right, 2 units
down and vertically compresses it by a factor of 1/3. Which equation below best
represents Beth's graph?

Answers

Answer:

i am trying to figure out the answer give me a few minutes :) !

what is the equation of the line that passes through the point (-2,-2) and a slope of 4

Answers

Answer:

y = 4x + 6

Step-by-step explanation:

Gradient is already given as 4.

We proceed straight away to solving for the equation

Help please help please

Answers

Answer: 20x

expalnation: Not sure about the second one  but the first problem is a trick problem your finding the mean. but it already brought the equation down to 1 so 20 is the answer  

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