I need help understanding this

Answer:

the answer is differently C

Answer:

B

Step-by-step explanation:

.

Answer:

(-4 + sqrt11)/5

Step-by-step explanation:

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

Answer:

y = -1/2 + 3

Step-by-step explanation:

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:

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:

660 square feet

Step-by-step explanation:

1 chain = 66 feet

Length ( l ) = 66 feet

Breadth ( b ) = 10 feet

To find :

The area of a cricket pitch in square feet = ?

The area of a cricket pitch in square feet will be in the shape of rectangle.

Formula : -

Area of a rectangle = lb

Area of a rectangle

= 66 x 10

= 660 square feet

Therefore,

660 square feet is the area of a cricket pitch.

Answer:

8x=y or y=8x

Step-by-step explanation:

So 8 is the number of hours,

we can interpet x for the amount of practice he goes to. For example if hee goes,

for example if he goes to 2 practices the equation will be =

8(2)=Y.... 8(2)=16

16 is the number of miles he runs for 2 practice

We can insert the number of practice he goes to into X

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:

put them in desmos......

Answer:

can't see the question man take a different picture

Answer:

Yes, you did.

Step-by-step explanation:

Answer: -10m - 18

Step-by-step explanation:

(-8m-2m) + (-8-10)

(-10m)+(-18)

-10m-18

please give me a brainliest answer

Answer:

[tex]\boxed {\sf -10m-18}[/tex]

Step-by-step explanation:

[tex]\sf -8m-8-2m-10[/tex]

Combine -8m and -2m = -10m:

[tex]\sf -10m-8-10[/tex]

Subtract 10 from -8 = -18:

[tex]\sf -10m-18[/tex]

_________________________

Answer:

I think it's >-4 subtracted by 3 but I'm not sure

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:

3200 i think

Step-by-step explanation:

2,000/5=400

400x8=3200

Answer:

-18a^7

Step-by-step explanation:

When you multiply like bases, you add the exponents.

(3a^4)(-6a^3) =

-18a^7

Answer:

-18a^7

Step-by-step explanation:

hope this helped

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:

$1,200,000

Step-by-step explanation:

Let x = sales

Since he gets 3% of a sale, we multiply x by 0.03

24,000 + 0.03x = 60,000

Subtract 24,000 from both sides

24,000 + 0.03x = 60,000

- 24,000            - 24,000

0.03x = 36,0000

Divide both sides by 0.03

0.03x/0.03 = 36,0000/0.03

x = 1,200,000

Answer:

3^4

Step-by-step explanation:

Therefore, the product of 3 × 3 × 3 × 3 written as a power is 3^4.

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:

y= -2x + 5

Step-by-step explanation:

Parallel equations share the same slope so, you need to take the x coordinate and multiply it by the slope which is -2, and you should get 0. To get from 0 to 5 we need to add 5, so 5 is your y-intercept.

When we reflect a point across an axis, the distance between the point and the axis stays the same, but is flipped to the opposite side.  

We know that the coordinates of point A are (4,1), the coordinates of point B are (6,3), and the coordinates of point C are (2,4).  

In this case, Triangle ABC is a reflection of point A'B'C' across the y-axis.  

=  reflection across the y-axis

Answer:

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

Answer:

1. NP

2. P

3. P

4. NP

Step-by-step explanation:

if this helped, Mark as brainliest, thank you

Answer:

Not polynomial for the first one.

second is polynomial.

third is polynomial.

and fourth is not polynomial.

Step-by-step explanation:

oh wait- yeah the other person is right too LOL

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:

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:

(6 / 5)²

Step-by-step explanation:

Answer:

1=1, 25=5, 81=9, 9=3, 64=8, 100=10, 169=13, 196=14, 144=12

Answer:

the first six square roots are 1, 3, 10, 5, 8 and 14.

Step-by-step explanation:

You will find yourself using square roots often enough to make it worth the effort to memorize the basic ones.

In the same order as presented here, the first six square roots are 1, 3, 10, 5, 8 and 14.  That is, √1 = 1; √9 = 3; √100 = 10; and so on.

Answer:

a.7a

b.9x

c.6p

Step-by-step explanation:

only like term can be add or subtracted

Answer:

a) 7a

b) 9x

c) 6p

Step-by-step explanation:

Combine like terms.

a) 2a + 5a = 7a

b) 12x - 3x = 9x

c) 3p + 2p + p = 6p