what’s the difference between the expansion of (-2x)^2 and -2x^2

Answers

Answer 1

Answer:

the one in parenthesis means you have to multiply the Pareinthasis first while the one wi5hout it dose not matter of in order


Related Questions

Suppose you dilate a square with a length and width of 12 by a scale factor of 1. What is
the width of the new image?

Answers

Answer:

12

Step-by-step explanation:

Given the length and width of a square to be 12

If the of the square is dilated by a factor of 1, this means that the value will be multiplied by 1 as shown;

New width = Old width * 1

New Width = 12 * 1

New width = 12

Hence the width of the new image will also be 12

WRITE AN EQUATION RHAT DESCRIBES THE PATTERN SHOWN IN THE TABLE!! Please help!!! HURRY PLEASE TYSM

Answers

Answer:

he depends on the 12th week because he ran more miles

Step-by-step explanation:

8<10<13<17

a) write √3×√6 in the form of b√2 where b is the insteger

b) simplify √8×√18

Answers

Step-by-step explanation:

a.) the given term can be written as

=

[tex] \sqrt{3} \times \sqrt{3 \times 2} [/tex]

=

[tex] \sqrt{3 \times 3 \times 2} [/tex]

=

[tex]3 \sqrt{2} [/tex]

hence the given term is

[tex]3 \sqrt{2} [/tex]

where b = 3

b.)

=

[tex] \sqrt{8} \times \sqrt{18} [/tex]

=

[tex] \sqrt{2 \times 2 \times 2} \times \sqrt{2 \times 3 \times 3} [/tex]

=

[tex] \sqrt{2 \times 2 \times 2 \times 2 \times 3 \times 3} [/tex]

=

[tex]12[/tex]

hence the given term is 12

ALGEBRICAL EXPRESSIONS
SIMPLIFY

(7x+8y)² - (7x-8y)²

Answers

Step-by-step explanation:

hope it helps you

mark me as brainliest

Can someone help me

Answers

Step-by-step explanation:

the answer is B. lines 1 and 3 are perpendicular

Cecilia is saving money to buy a bicycle. She started with $75 and saves $10 each week from her allowance. Which equation represents how much money, y, Cecilia has at the end of x weeks? O A. y = 75x + 10 o B. y = 10x + 75 O C. x = 75y + 10 O D. X = 10y + 75​

Answers

Answer:

y = 10x + 75 If not then

X = 10y + 75

Please solve all these ASAP:))))))))

Answers

Step-by-step explanation:

All of them are equal.
Can anyone else confirm?

Help!
if the parallelogram below, z=?

Answers

Answer:

z = 124 degrees

Step-by-step explanation:

If it is a parallelogram, opposite angles are congruent. So, z = 124 degrees

Answer:

opposite angles are equal so z=124°

please help me i dont really understand these questions im giving out brainliest

Answers

Answer:

x = 63.5 degrees

Step-by-step explanation:

use sine:

sine = [tex]\frac{opposite}{hypotenuse}[/tex]

sine x = [tex]\frac{17}{19}[/tex]

sine x = 0.8947

sine-1 of 0.8947 = 63.4699

x = 63.4699

round to the nearest tenth:

x = 63.5

Collins has a part-time job as a dog walker. The table below shows the amount of money Collins earned for different numbers of hours of work:


Collins' Earnings from Dog Walking
Number of Hours Worked Money Earned (dollars)
5 30
6 36
8
66

Part A: What are the missing numbers in the table? Show your work. (4 points)

Part B: Collins also does part-time yard work. The ratio of the number of hours Collins works to the money he earns in dollars is 1:7. Create a table to show the money earned by Collins for 5, 6, and 8 hours of doing yard work. (3 points)

Part C: How many more dollars does Collins earn doing yard work for 5 hours than working as a dog walker for 5 hours? Show your work. (3 points)

Answers

Answer:

See below.

Step-by-step explanation:

Part A:

For Dog walking, he earns $30 for 5 hours of work.

He earns $36 for 6 hours of work.

$30/5 hours = $6/hour

$36/6 hours = $6/hour

He earns $6/hour dog walking.

For 8 hours, he earns 8 hours * $6/hour = $48

To earn $66, he works 66/6 = 11 hours.

5 30

6 36

8 48

11 66

Part B:

He earns $7/hour for yard work, so multiply the number of hours by 7 to find the money he earns.

Table for yard work

Hours     Money

5             $35

6             $42

8             $56

Part C:

For 5 hours, he earns $35 for yard work and $30 as a dog walker.

$35 - $30 = $5

To prepare for a party, Jada poured 0.45 liter of juice into each of several cups. Altogether she poured 9 liters of juice into the cups.

Answers

Answer: 20 cups

Step-by-step explanation:

Question would like to know the number of cups that Jada poured juice into.

If each cup got 0.45 litres, the number of cups that Jada poured drinks into would be the total amount of juice poured divided by the quantity per cup:

= Total juice poured / Quantity per cup

= 9 litres/ 0.45 litres per cup

= 20 cups

A bus travels one and one half miles to a bus stop 4 times. How many miles in all has the bus traveled?

Answers

Answer:

6 miles

Step-by-step explanation:

1.5miles multipled by 4stops is 6

Rachel has been offered full-time sales positions at two different furniture stores. The first store will pay her a weekly salary of $250 plus a commission of 12% of her sales. The second store will pay her a weekly salary of $475 plus an 8% commission. If x represents Rachel’s weekly sales (in dollars) and y represents her total earnings (in dollars), which system of equations describes the problem situation?
A.
{
y
=
0
.
12
x
y
=
0
.
8
x
B.
{
y
=
250
+
12
x
y
=
475
+
8
x
C.
{
y
=
250
x
+
12
y
=
475
x
+
8
D.
{
y
=
250
+
0
.
12
x
y
=
475
+
0
.
08
x

Answers

Answer:

Number A.

Step-by-step explanation:

i just did this one lol

The system of equations that describes the problem situation is y=250+0.12x and y=475+0.08x. The correct option is D.

What are Percentages?

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

Given that The first store will pay her a weekly salary of $250 plus a commission of 12% of her sales. Therefore, the equation can be written as,

Total earning = Weekly salary + 12% of weekly sales

y = 250 + 0.12x

Also, The second store will pay her a weekly salary of $475 plus an 8% commission. Therefore, the equation can be written as,

Total earning = Weekly salary + 8% of weekly sales

y = 475 + 0.08x

Hence, the system of equations that describes the problem situation is y=250+0.12x and y=475+0.08x.

Learn more about Percentages here:

https://brainly.com/question/6972121

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Does this table represent a function? Why or why not?

Answers

Answer:

NO. B is the answer

Step-by-step explanation:

because there are two of the same x values, causing there to not form a straight line.

Hope this helped! Have a nice day! Plz mark as brainliest!!! :D

-XxDeathshotxX

For the given right triangle, find the value x to the nearest tenth:​

Answers

92.3

Hope this helps!!!

Find the area of this triangle. Round to the nearest tenth. 9.5 yd 23 yd



Please help!

Answers

Answer:

[tex]Area=\frac{ab}{2} \\\\area=\frac{9.5.23}{2} \\\\answer=108.8 yd^{2}[/tex]

Step-by-step explanation:

I hope this helps ^_^

The area of the triangle is 108.7 square yards.

What is the area of the triangle?

Let a, b, and c is the sides of the triangle.

The area of the triangle is given as

S = (a + b + c) / 2

[tex]\rm A = \sqrt{s(s - a)(s - b)(s -c )}[/tex]

The third side of the triangle will be

c² = a² + b² - 2ab cos θ

c² = 9.5² + 23² - 2 × 9.5 × 23 × cos 85°

c² = 619.25 - 38.09

c² = 581.16

 c = 24.11 yd

Then the area of the triangle will be

S = (9.5 + 23 + 24.11) / 2

S = 56.61 / 2

S = 28.3

Then the area will be

[tex]\rm A = \sqrt{28.3(28.3 - 24.11)(28.3 - 23)(28.3 - 9.5)}[/tex]

Simplify the expression, then the value will be

A = √11815.01

A = 108.7 square yd

The area of the triangle is 108.7 square yards.

More about the area of the triangle link is given below.

https://brainly.com/question/19305981

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Staples sells boxes of pens for ($10) and rubber bands for ($24). Leona ordered a total of 24 cartons for $210. How many boxes of each did Leona order? Hint: Let P = Pens.

Answers

Answer:

Leona ordered 19 boxes of pens and 5 rubber bands

Step-by-step explanation:

Let there are p pen and b rubber bands.

ATQ,

p+b = 24 ...(1)

and

10p+4b = 210 ...(2)

Multiply equation (1) by 10.

10p+10b = 240 ...(3)

Subtract equation (2) from (3).

10p+10b-(10p+4b ) = 240-210

6b = 30

b = 5

Put the value of b in equation (1).

p+5 = 24

p = 19

Hence, Leona ordered 19 boxes of pens and 5 rubber bands.

I will give brainlits and start pls help




Graph the equation y = 3x - 3 using slope and y-intercept.
6
5
y
4
3
N
1
0
-1
-2
الفا
4
-5
-6
-5
-2
-4
-1
0 1
-3
2
5
2
6
3
á
?
y = 3x - 3

Answers

Step-by-step explanation:

(0,-3) and (1,0) this are the point

Plss help !!!!!!!!!!!!!!!!

Answers

Answer: C (324)

Step-by-step explanation:

He is making $54 a day working 6 hours a day. 54 x 6 = 324 meaning in 6 days he would make $324.

Answer:

C. 324 thats the answer my cousin solved this

Apply the Distributive Property to Simplify the Expression
3(36)

Answers

Answer:

108

Step-by-step explanation:

3(36)=3(30+6)=90+18=108

Mr. Robins earns a commission on each airfare he books. At the end of the day, he had booked $208.60 worth of airfare and earned $31.29. What is Mr. Robins’ commission rate (percent)?

Answers

About 6.666666667 percent, that’s his commission rate

Vhat is the mean absolute deviation of this data set? {2, 2, 4,4}

Answers

(2+2+4+4=12) (12/4=3) to find the mean you first add all the numbers together then you divide the total by how many you added together

3x²-.75=90

I need help finding the value of x
(90 points)

Answers

Answer:

x=5.5, -5.5

you can use a calculator too

Step by step explanation:

3x^2 - 75 = 90

1. Move the constant to the right

3x^2 = 165

2. Divide by 3

X^2 = 55

Therefore: x= +/- square root 55

X^2 = 115

What is the solution to 0.4x−4<2.4 ?

Answers

X=16 hope this helps!

The distance from Earth to Pluto is about 5,750,000,000 km. How many light-years is this?

Answers

Answer:

The average distance between Earth and Pluto is same as average distance of Pluto from the Sun. This is 0.000628 light years, nearly.

Explanation:

The average distance obetween two planets is nearly the average distance of the outer planet from the Sun. Earth is inner to Pluto. Average Sun-Pluto distance = 5906.4 million km. Divide by 149597870 to get distance in Au. Further divide by 62900 to get distance in ly.

Jane goes to an amusement park with her friends. The admission fee to the amusement park is $8 and each ride costs $2. If Kelly has only $32 to spend how many rides can she go on?​

Answers

Answer:

She can ride 12 rides i think if not let me know!

Step-by-step explanation:

32 - 8 then 24 divided by 2

On a coordinate plane, the orange K is shifted to form the purple K, reflected across the x-axis to form the green k, and rotated to form the black k. Which image is a reflection of the orange letter K in Quadrant I?

Answers

Answer:

the green kin quadrant IV

Step-by-step explanation:

i took the quiz and got it right

Point k is reflected across the y-axis to create point k'.

What is reflection?

A reflection in mathematics is a mapping from a Euclidean space to itself that is an isometry with a set of fixed points known as the hyperplane, also known as the axis or plane of reflection.

The mirror image of a figure in the axis or plane of reflection is the image produced by a reflection.

From the graph, we can see that point k has a negative x-coordinate, so option A is wrong. Also, point K is located in quadrant II, not in quadrant IV

Point K is not reflected across the x-axis to create K'. For reflection across the x-axis to occur, the point (x,y) across the x-axis will change to (x, -y).

Point K is reflected across the y-axis to create point K'. We can see from the graph that the reflection of the point (x,y) across the y-axis is the point (-x, y)

To know more about reflection follow

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The area of a circle is 200.96 cm? What is the diameter of the circle? (Write only the
numeric answer no units)

Answers

The answer for this is 8x2 which is 16

Answer:

16 (well, more like 15.99)

Step-by-step explanation:

[tex] \sqrt{((200.96 \times 4) \div 3.14)} [/tex]

Solve the following expression when
t = 6 and d = 8
t + d = 8 - 6

Answers

Answer:

Hi! Your answer is 14 = 2

Step-by-step explanation:

Evaluate

Find all real solutions and show work:
2x^3-3x^2+18x-27=0

Answers

Given:

The given equation is

[tex]2x^3-3x^2+18x-27=0[/tex]

To find:

All the real solutions.

Solution:

We have,

[tex]2x^3-3x^2+18x-27=0[/tex]

It can be written as

[tex]x^2(2x-3)+9(2x-3)=0[/tex]

[tex](2x-3)(x^2+9)=0[/tex]

Using zero product property, we get

[tex](2x-3)=0[/tex] and [tex](x^2+9)=0[/tex]

[tex]2x=3[/tex] and [tex]x^2=-9[/tex]

[tex]x=\dfrac{3}{2}[/tex] and [tex]x=\pm\sqrt{-9}[/tex]

We know that [tex]x=\pm\sqrt{-9}[/tex] is an imaginary number because there is a negative sign under the square root.

Therefore, [tex]x=\dfrac{3}{2}[/tex] is the only real solution of the given equation.

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