true or false? help please

Answer:

try B. 2x^2 - x - 2

Step-by-step explanation:\

Cant realy give step by step- i just know

The solution 2x² - x - 1 is equivalent to expression y + yz.

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.

The operator that performs the arithmetic operation is called the arithmetic operator.

Operators which let do a basic mathematical calculation

+ Addition operation: Adds values on either side of the operator.

For example 12 + 2 = 14

- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.

for example 12 -2 = 10

* Multiplication operation: Multiplies values on either side of the operator

For example 12*2 = 24

Given expression as :

⇒ y + yz

y = x + 1/2 and

z = 2x - 3

Substitute the values of y and z in the expression y + yz,

⇒ x + 1/2 + (x + 1/2)(2x - 3)

⇒ x + 1/2 + x(2x - 3) + 1/2(2x - 3)

⇒ x + 1/2 + 2x² - 3x + x - 3/2

Rearrange the like wise term and apply the arithmetic operations,

⇒ 2x² - 3x + x + x + 1/2 - 3/2

⇒ 2x² - x - 1

Hence, the solution 2x² - x - 1 is equivalent to expression y + yz.

Learn more about Arithmetic operations here:

brainly.com/question/25834626

#SPJ2

Answer:

D: 2 1/2

Step-by-step explanation:

Answer:

the correct answer is.

A. 2/5

Answer:

£30

Step-by-step explanation:

Let Brian initially had money in his wallet = £x

and Colin had the money = £y

Since ratio of money in Brian's wallet to Colin's wallet was 5 : 1

Therefore,  

⇒ x = 5y -------(1)

Brian spent £27 that day, so money left with him = £(x - 27)

After spending the money Brian had £3 less than Colin.

(x - 27) = (y - 3)

x = y + 27 - 3

x = y + 24 -------(2)

Now we equate the equations (1) and (2) for the value of x,

5y = y + 24

5y - y = 24

4y = 24

y = £6

From equation (2),

x = 6 + 24

x = £30

Therefore, Brian initially had £30.

i hope this helps

Answer:

192 haircuts

Step-by-step explanation:

Given that,

In 8 weeks, a hair salon gave 1,536 haircuts.

We need to find how many haircuts did the hair salon give each week.

8 weeks = 1,536 haircuts

1 week = (1,536 /8) haircuts

= 192 haircuts

Hence, the hair salon gives 192 haircuts each week.

Answer:

Yes

5,5

Y

Step-by-step explanation:

Answer:

y > 3.0083

Step-by-step explanation:

6(2y-4) +2.6 >14.7

=6 ×2y +6(-4) +2.6 >14.7

=12y - 24 + 2.6> 14.7

And then collect like terms

12y > 14.7 +24 -2.6

12y > 38.7 - 2.6

12y > 36.1

12. 12

y > 3.0083

S.S[4,5,6,7......]

Answer:

at 5 and 5

Step-by-step explanation:

Answer:

4(5+16)

Step-by-step explanation:

21 x 4 is 84 and the 20+64 is 84

Answer:

yes and yes

Step-by-step explanation:

Step-by-step explanation:

6 min => Run 12 laps around the track

1 min => 12/6 = 2 laps around the track

Therefore Lin runs 2 laps per minute.

Answer:

2 laps per minute

Step-by-step explanation:

What we know:

Lin runs

12 laps

in 6 minutes

Laps per minute = [tex]\frac{Laps}{Minute} = \frac{12 laps}{6 minutes} = \frac{12}{6} = 2 \frac{laps}{minute}[/tex]

Answer:

The exact value of

sin

(

30

)

sin(30) is

1

2

12.

15

⋅

1

2

15⋅12

Combine

15

15 and

1

2

12.

15

2

152

The result can be shown in multiple forms.

Exact Form:

15

2

152

Decimal Form:

7.5

7.5

Mixed Number Form:

7

1

2

712

Step-by-step explanation:

Answer:

Step-by-step explanation:

-9x+1=-80

first subtract 1 from both sides

-9x=-81

we divide by -9

x=9

Answer:

.19 ¢

Step-by-step explanation:

1.) Multiply

There are 3 feet in one yard. And there are 3 yards. So,

3 x 3 = 9

2.) Divide

1.71 ÷ 9 = .19

3.) Check answer

.19 x 9 = 1.71

So it cost .19¢ per foot.

Hope this helps you out : )

Answer:

Here is the answer to your question it is in this picture

Answer:

-3/4

Step-by-step explanation:

to get the slope use u need two points and substitute them into

slope (m) = [tex]\frac{y2-y1}{x2-x1}[/tex]

the two clearest points here are the y-intercept:(0,6) and x-intercept:(8,0)

m= [tex]\frac{6-0}{0-8}[/tex] = -3/4

Answer:

-3.66

Step-by-step explanation:

6x-3=-25

6x=-22

X=-3.66

Answer

The total rainfall last year is 12.75 inches.

Step-by-step explanation:

The total rainfall this year is 10.2 inches.

Let the total rainfall last year be x inches.

It is given that the total rain this year 20% less than last year's total rainfall

Therefore total rainfall last year is 12.75 inches.

Answer:

hey does this look good trying to hide a busted lip lol

Step-by-step explanation:

let's just say that me and my brothers got into a fight but I won XD

It is A: Condensation.

Step By Step Explaination:

Condensation is the process by which water vapor in the air is changed into liquid water. Condensation is a apart of the  water cycle because it is responsible for the formation of clouds.

Answer:

3404.14159

Step-by-step explanation:

just use a calculator to add every thing together

Answer:

3404.14159265

Step-by-step explanation:

Calculator

Brainliest please!

Answer:

p=2.5t

Step-by-step explanation:

p stands for pages

2.5 is how long it takes him to read 1 page

t is the time

the reason why the t is next to 2.5 is so when you replace t with the actual time, you would multiply it by 2.5 to get how many pages he read in any amount of time

Answer:

x = -1

Step-by-step explanation:

Given

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

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

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

x = - 1

Answer:

the value of y should be 4

Step-by-step explanation:

hope it help

Answer:

what the person above me said is correct :)

Step-by-step explanation:

Answer:

Both inequalities use the division property to isolate the variable, y. When you divide by a negative number, like –7, you must reverse the direction of the inequality sign. When you divide by a positive number, like 7, the inequality sign stays the same. The solution to the first inequality is y > -23, and the solution to the second inequality is y <>

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

Answer:

here you go

Step-by-step explanation:

50 + 50

75 + 25

60 + 40

90 + 10

80 + 20

64 + 36

18 + 82

70 + 30

45 + 55

Hope this helps!

I gave extra for learning purposes

Answer:

if you want it in standard form it would be −1/4x-1/2x-5/6

If you want it simplified it would be -3x/4-5/6

Step-by-step explanation:

(This is the best you'll get for 5 points)

I solved it on that screenshot I put it has it with all the work

Answer:

yes

Step-by-step explanation:

6/ 16 both divided by 2

Answer:

Yes

Step-by-step explanation:

3/8 and 6/16 are equivalent fractions

Answer:

w = -45

Step-by-step explanation:

1/5w + 7 = -2

Subtract 7 from both sides.

1/5w = -9

Get w alone. To get w alone, divide 1/5 from both sides. You can also multiply 5 to both sides which is basically the same as dividing by 1/5.

w = -45