What is the value of x? ​

Answer:

[tex]2 {x}^{2} - 8[/tex]

hope it's helpful ❤❤❤

THANK YOU.

Answer:

2x² - 8

Step-by-step explanation:

Given

(x - 2)(2x + 4)

Each term in the second factor is multiplied by each term in the first factor, that is

x(2x + 4) - 2(2x + 4) ← distribute both parenthesis

= 2x² + 4x - 4x - 8 ← collect like terms

= 2x² - 8

Step-by-step explanation:

[tex] - \frac{1}{3} b = 9 \\ b = -9 \times 3 \\ b = - 27[/tex]

Answer:

b=−27

Step-by-step explanation:

took the quiz and got it right

Answer:

0.2 ( 65x − 24 ) hope this is correct and helps you

Answer:

40 respondents

Step-by-step explanation:

Percentage of respondents who watch TV for one hour each day = 75%

Number of respondents who watch TV for one hour each day = 30

Let [tex]x[/tex] denotes total of respondents who watch TV for one hour each day.

Therefore,

[tex]\frac{75}{100}x=30\\\\x=\frac{100}{75}(30)=40[/tex]

Answer:

77.36312849162011

Step-by-step explanation:

A rational numbers is any number that can be turned into a fraction/ratio. (Ex. 8, 0.75, 1/3). An irrational number is anything that can't be turned into a fraction/ratio. (Ex. Pi, square root of 2). Radicals and rational exponents are related because radicals can be converted into rational exponents.

Answer:

Any number that can be written as a fraction with integers is called a rational number. An irrational number is a number that cannot be expressed as a fraction for any integers. Radicals are related because for irrational numbers they cannot be simplified under the radical and you use a radical on the exponent to cancel it out, hope this helps!

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

Answer:

Yes you are right,

Answer:

1899.7 in^3.

Step-by-step explanation:

Radius = 1/2 diameter

= 22 * 1/2 = 11.

Volume = 1/3 pi r^2 h,  so

= 1/3 * 3.14 *1 1^2 *1 5

= 1899.7 in^3.

Answer:

2x...................

5.a) Steve - 60=5×12

= 5×3×2×2

5.b) Ian - 60=6×10

= 3×2×5×2.

Discussion - The prime factors reduce to the same numbers in both Steve's and Ian's case.

5.c) Case 1 of 48 = 6×8

= 3×2×2×2×2.

Case 2 of 48 = 12×4

= 2×2×3×2×2.

Answer:

3240 pounds of copper would be used

Step-by-step explanation:

[tex]\frac{18}{15}=\frac{x}{2700} \\(2700)*(\frac{18}{15})=x\\3240lbs=x[/tex]

Answer:

A

Step-by-step explanation:

Charles have 3533.10 quetzals.

It is the conversion of one unit to another unit with its standard conversion.

Examples:

1 hour = 60 minutes

1 minute = 60 seconds

1 km = 1000 m

We have,

Charles allocated amount for spending = $415.

The exchange rate from US dollars to Guatemalan quetzals.

= 1 : 8.5135

This means,

$1 = 8.5135 quetzals

Now,

$1 = 8.5135 quetzals

Multiplying 415 on both sides.

$415 = 415 x 8.5135

$415 = 3533.1025 quetzals

Rounding to two decimal places.

$415 = 3533.10 quetzals.

Thus,

Charles has 3533.10 quetzals.

Learn more about unit conversion here:

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308 personas por qué

268+8×5=308

Answer:

it is number 3. or III.

Step-by-step explanation:

hope this helps

Answer:

$1.09

Step-by-step explanation:

1) Sales Tax Amount = Net Price x (Sales Tax Percentage / 100)  

2) Total Price = Net Price + Sales Tax Amount

E= $18.53

H= $17.44

18.53 - 17.44= 1.09

You know you need to show your work.

9514 1404 393

Answer:

  $800

Step-by-step explanation:

The value formula can be written ...

  y = 40,000(1/2)^(t/3)

Using t=17, this becomes ...

  y = 40,000(1/2)^(17/3) ≈ 800

The value of the car after 17 years is about $800.

I believe the second one : drawing a number from a hat, not replacing it, and then drawing a second number

Answer:

The first choice.

Step-by-step explanation:

An independent event is an event where the probability of the event doesn't affect the probability of the other.

Randomly choosing a marble from a bag, replacing it, and choosing again reaching into your pocket and pulling out two dimes out of 20 coins.

- This is an independent event since the probability of the first event doesn't affect the probability of the second event in any way.  

Answer:

Given:

The radius of a wheel =r=35 cm=0.35 cm.

The speed it must keep =s=66 km/h=

60

66×1000

m/min=1100 m/min

To find out:

The number of revolution =n, it makes per minute to maintain that speed.

Solution:

The circumference =C of the wheel =2πr=2×

7

22

×0.35 m=2.2 m=C

The distance the wheel covers in 1 min=d=1100 m.

Now the distance =d covered by a wheel in one revolution = the circumference of the wheel.

∴ Here the number of revolution =n=

C

d

=

2.2

1100

=500.

Answer:

if i am correct the answer is A

Step-by-step explanation:

The quotient of 3 and -30 is a rational number. The correct answer would be an option (B).

A quotient is defined as the outcome of dividing an integer by any divisor that can be said to be a quotient. The dividend contains the divisor a specific number of times.

The quotient of 3 and -30 is:

3 ÷ (-30) = -0.1

Therefore, the quotient is a rational number. Option B is correct.

A rational number is a number that can be expressed as a ratio of two integers, where the denominator is not zero. In this case, -0.1 can be expressed as the ratio of the integer -1 and the integer 10, where the denominator 10 is not zero.

Note that the quotient is negative because we are dividing a positive number (3) by a negative number (-30).

Learn more about the quotient here:

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Answer & Step-by-step explanation:

-52-3+2+21-21 =

-55+2+21-21 =

-53+21-21 =

-32-21 =

-53 =

Answer:

10

Step-by-step explanation:

Answer:

r=6.4

Step-by-step explanation:

Get r by itself you need to add 8.5 to get 6.4

Hope this helps (:

Answer:

r-8.5=-2.1

r=-2.1+8.5

r=6.4

Step-by-step explanation:

Answer:

3/11

Step-by-step explanation:

If we add all the numbers together we get 11.

6 + 3 + 2 = 11

Therefore there are 11 parts altogether in the drink.

Orange is 3 parts out of all, so that means it is 3/11 in fraction-form.

Answer:

6 cm

Step-by-step explanation:

Vcuboid  = lwh

⇒ h = Vcuboid ÷ lw

∴  h = 540 cm³ ÷ 90 cm²

⇒ h = 6 cm

After solving the given equations, the value obtained for x and y will be equal to (1, 2).

Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.

This relationship is illustrated by the left and right expressions being equal to one another. The left-hand side equals the right-hand side is a basic, straightforward equation.

As per the given equations in the question,

4x + 3y = 10      (i)

9x - 4y = 1        (ii)

Multiply equation (i) by 9 and multiply equation (ii) by 4  

36x + 27y = 90

36x - 16y = 4

A similar term of x will cancel out from here.

y = 86/43

y = 2

Put y = 2 in equation (i)

4x + 3(2) = 10

4x = 4

x = 1

To know more about equation:

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Answer:

140.8 cm2

Step-by-step explanation:

a spare has 4 sides so you need to times 35.2 by 4 which is 140.8