Need help please explain

Answer:

In the step-by-step explanation!!!

Step-by-step explanation:

(a)

20(2)^6 ÷ 4(2)^2 = 80

5x^3 = 40

And we of course know that 80 is not equal to 40 at all.

(b)

5x^4 should be the answer

I believe that I am correct!

Have a good day :)

Answer:

For A

[tex]{ \rm{6 {x}^{2}(x + 1) - 2x(x + 1) }}[/tex]

• The equation above has a common bracket "(x + 1)". So, let's first factorise out that bracket:

[tex] \dashrightarrow \: { \rm{(x + 1) \{6 {x}^{2} - 2x \} }}[/tex]

• now in the second bracket, the common factor is x and 2.

[tex] \dashrightarrow \: { \rm{(x + 1) \{2x(3x - 1) \}}}[/tex]

• Final answer;

[tex]{ \boxed{ \boxed{ \rm{ \dashrightarrow \: 2x(x + 1)(3x - 1) \: \: }}}}[/tex]

For B

[tex]{ \rm{3(x - 1)(x + 2) + ( {x}^{2} - x)(x + 2) }}[/tex]

• In the equation, the common bracket is (x + 2).

So let's first factorise it out:

[tex] \dashrightarrow \: { \rm{(x + 2) \{3(x - 1) + ( {x}^{2} - x) \}}} \\ \\ { \rm{(x + 2) \{3(x - 1) + x(x - 1) \}}}[/tex]

• In the second major bracket, the common bracket is (x - 1). so factorise it out:

[tex]{ \rm{(x + 2) (x - 1) \{3 + x \}}}[/tex]

• Final answer:

[tex]{ \boxed{ \boxed{ \rm{ \dashrightarrow \: (x + 2)(x + 3)(x - 1) \: \: }}}}[/tex]

Answer:

29

Step-by-step explanation:

Insert 2 in all the x's so, 2(2)^4+(2)^3-4(2)-3

so 32+8-8-3=29

Answer:

f(2)= 29

Step-by-step explanation:

f(x) = 2x^4 + x^3 - 4x -3

all you need to do is to place "2" anywhere you see x in f(x)

2(2)^4 + (2)^3 + 4(3) - 3

32+ 8 - 8 - 3

=29

Answer:

36+90=126

90+2x=126

2x=36

x=36/2

x=18

Answer:

1/64

Step-by-step explanation:

Note that 1³ = 1 and that 4³ = 64.

                           1³            1

Thus, (1/4)³ = ------------ = -------

                           4³           64

Answer:

[tex]\small \: \sf \: \frac{ 1 }{64} \: \\ [/tex]

Step-by-step explanation:

[tex]\small \: \sf \: \frac{ 1 {}^{3} }{4 {}^{3} } \: \\ [/tex]

Write the exponentiation as multiplication.

[tex]\small \: \sf \: \frac{ 1 \times 1 \times 1 }{4 \times 3 \times 3 } \: \\ [/tex]

Multiply, we get .

[tex]\small \: \sf \: \frac{ 1 }{64} \: \\ [/tex]

Answer:

4+2x

Check attached file for steps :)

Total distance from w to z is -10 to 6 = 16

Add the ratios: 2 + 3 + 3 = 8

Divide distance by total ratio: 16/8 = 2

Multiply each ratio by 2 : 2x 2 = 4, 3 x 2 = 6, 3 x 2 = 6

WX is 4 units apart, add 4 to -10 to get x = -6

Answer: A. -6

Answer:

Global warming is a good friend who is a good friend who y9ydoy

Vifpyxifzudz

Step-by-step explanation:

Vhcyodkgxifxtix

U gusto lhzruzifrskfskgskfxogxkfaurs

YffytdtstditdblkgsigxifsohsigstixogsitspuxR7irzxphx9hdzogzlbIFgzixgohhdhdhdhdjjjgjfxsakddvsd

Answer:

-[tex]\frac{35}{2}[/tex]

Step-by-step explanation:

-5 ÷ [tex]\frac{2}{7}[/tex] = 17[tex]\frac{1}{2}[/tex]

17[tex]\frac{1}{2}[/tex] = -[tex]\frac{35}{2}[/tex]

Step-by-step explanation:

keep change flip, keep the first number, change the division to multiplication, and flip the fraction.

-5 * 7/2 and multiply straight across

-35/10

Answer:

The scale factor from Figure A to Figure B is 0.50.5

Step-by-step explanation:

brainly this please

Answer:

you didn't show a screenshot

Step-by-step explanation:

Answer:

the answer is d

Step-by-step explanation:

hope this help

Answer:

46 2/3

Step-by-step explanation:

Divide 90 by 1.5 because:

Average Distance= distance/time

then 120 by 3 for same reason

then u find each

then add 90 with 120 to get 210 then divide by 4.5 to get 46 2/3

Answer:

46.6666667

Step-by-step explanation:

we need to know the TOTAL average speed. To do that, we need to know how to get the speed, which is distance/time. Now we have to substitute. The equation we get is: s= (90+120)/(1.5+3). After solving, you should get s= (210miles)/(4.5hrs). Now all we have to do is divide, which equals 46.6666667.

Hope this helps! (:

Answer:

(H).........................

Answer:

90 cents

Step-by-step explanation:

$2.70

$2.85

______

.94 round to the nearest teeth percent is 90

Answer:

27.5 :))

Step-by-step explanation:

so this is the way i did it  i breaked it down right so the equation is 5.50 x 5

take away the decimal and now its 550 and i did repeative addition of 5 until i got 2's of 1,100 i added them up then added the 2,200 + 550 without the decimal and i got 2750 instead of adding ',' i took the number 5.50 and saw there were two spaces under the numbers before it got to the decimal and it was two spaces so you do two hops like you do on a line in math so it basically turns to 27.50 :)) but you always take away the 0 if theres no number behind it so it turns to 27.5 :) but if the questions dont have the answer 27.5 then just add the 27.50! its the same number anyways :D ( i hope you understand it!)

Answer:

$27.5

Step-by-step explanation:

All you have to do is 5.50 multiplied by the number of days she is staying their, which is 5. Once you put that in, you get your answer which is 27.5!

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

Answer:

x = 8 and y=9 or y = 8 and x = 9

Step-by-step explanation:

8 x 9 = 72

8+9 = 17

9 x 8 = 72

9+8 = 17

Answer:

11 and 7

Step-by-step explanation:

Let these two numbers be x and y where x is greater than y.

We can write two equations from the given information:

x - y = 4

and

x + y = 18

If we add them together, the y's cancel out:

x - y = 4

x + y = 18

2x = 22

x = 11

y is 4 less than x, meaning it is 7.

The two numbers are 11 and 7

9514 1404 393

Answer:

Step-by-step explanation:

Let p and c represent the costs (in thousands) of swimming pool and Caribbean weddings, respectively. We have ...

  5p +2c = 55 . . . . . total cost of the weddings

  p = c -10 . . . . . . . . the difference in their cost

Substituting for p in the first equation gives ...

  5(c -10) +2c = 55

  7c -50 = 55

  7c = 105

  c = 15

  p = 15 -10 = 5

The Swimming Pool weddings cost $5000; the Caribbean weddings cost $15,000.

Answer:

b

Step-by-step explanation:

2 consecutive integers have a difference of 1 between them, example 5, 6

let m be the first integer then m + 1 is the second and their product is

m(m + 1) → b

Given :-

To Find :-

Solution :-

Let ,

Their product ,

Hence option b is correct .

Answer:

114 3/8 gallons

Step-by-step explanation:

To solve the question, we multiply by the number of gallons and the amount travelled per gallon:

Let's convert all fractions to improper fractions:

15 1/4 = (15*4 + 1)/4 = 61/4

7 1/2 = (7*2 + 1)/2 = 15/2

Multiply the numerators and the denominators:

61/4 * 15/2 = 61*15/4* 2 = 915/8 = 114 3/8

-Chetan K

Answer:

(-4 + sqrt11)/5

Step-by-step explanation:

-8 + sqrt(64-20)/10 = -4/5 + sqrt11/5

Answer:

1:10 PM.

Step-by-step explanation:

If the meeting started at 12:15, it took 45 minutes to get to 1PM, however it lasted 10 minutes longer than that (55 minutes total). If 10 minutes of the meeting remains at 1PM, the meeting ended at 1:10PM. Therefore, 55 minutes after 12PM is 1:10PM.

Answer:

the 2nd, 3rd, and 5th are your positive sums

Answer:

(6 / 5)²

Step-by-step explanation:

Answer:

1.23

0.067

25.34

Step-by-step explanation:

10^2 = 100

The point moves two places towards the right

Answer:

x = - [tex]\frac{5}{2}[/tex]

Step-by-step explanation:

x + 4 = 3x + 9 ( subtract x from both sides )

4 = 2x + 9 ( subtract 9 from both sides )

- 5 = 2x ( divide both sides by 2 )

- [tex]\frac{5}{2}[/tex] = x

Answer:

18750 miles in 3.75 hours

Step-by-step explanation:

5000 x 3.75 = 18,750