Please solve x^2 − 3x = −8

Answer:

Step-by-step explanation:

4.2) 2z² - 3z² = -z²

8x - x = 7x

4.3)  3x² - 4x²  = (3 -4)x² = -x²

    4z² - 3z²  = (4- 3)z² = z²

z² - 2z² = (1 - 2)z² = -z²

3x - x = 2x

Cannot be subtracted.

3y² - 3y² = 0

4.3) 2xy - x y                =  xy

      x²y² - 4x²y²           = -3x²y²

     x - y                        = /

   2x²y² - 6x²y²            = -4x²y²

  4xy  - 2xy                  = 2xy

4.4)  5xy - xy   = 4xy

       x²y² - 3x²y²  = -2x²y²

     3x³y - 2yx³  = x³y

Answer:

120L

Step-by-step explanation:

Given quantity;

    0.12kL to L

Solution:

Convert the given quantity to Liters;

      1000L  = 1kL

So.

        1kL gives 1000L

        0.12kL will be 1000 x 0.12  = 120L

Answer:

Step-by-step explanation:

Given the decimal number 7.7592

The value of the 7 in the ones place is 7 tens i.e 10

The value of 7 in the tenths place is 7 tenth i.e 7/10 = 7 * 1/10. The value of 7 in the tenths place is 1/10 = 0.1

Comparing both values

We will compare both values by finding their ratios as shown;

ratio = value of the 7 in the ones place/value of the 7 in the tenth place

ratio = 10/0.1

ratio = 100

Since the ratio is 100, this means that "the value of the 7 in the ones place is 100 times the value of the 7 in the tenths place"

Answer

Given the decimal number 7.7592

The value of the 7 in the ones place is 7 tens i.e 10

The value of 7 in the tenths place is 7 tenth i.e 7/10 = 7 * 1/10. The value of 7 in the tenths place is 1/10 = 0.1

Comparing both values

We will compare both values by finding their ratios as shown;

ratio = value of the 7 in the ones place/value of the 7 in the tenth place

ratio = 10/0.1

ratio = 100

Since the ratio is 100, this means that "the value of the 7 in the ones place is 100 times the value of the 7 in the tenths place"

Answer:

The answer is "Screen B is wider , because 5.3 is greater than 5 and one-third".

Step-by-step explanation:

The mobile display unit must be made similar. Phone A uses a decimal device, and telephone B uses a fraction in this case.

It's easier for you to use. Attempt using the decimal. The width of the phone B fraction could then be translated to decimal width. The computing is:

= 5 cm + [tex]\frac{1}{3}[/tex] cm

= 5 cm + 0.333cm

= 5.333 cm

It is evident from here that the wider screen of Phone B is than that of Phone A.

Answer:

They are all the same width

Step-by-step explanation:

Answer: for number one it is t=2

And for number 2 the answer is t=1

Step-by-step explanation:

Answer:

Similar

Step-by-step explanation:

Both triangles have corresponding sides, so they are similar.

The two triangles A and B are similar to each other.

If two objects are having the same shape then they will be termed as similar. So in mathematics, if two figures have the same shapes, lines or angles then they are called similar.

Given that triangle, A has side lengths 3,4, and 6. Triangle B had side lengths 6,8 and 12.

The second triangle is dilated by factor 2. This means in triangle B the sides are two times the side of triangle A.

Therefore, the two triangles A and B are similar to each other.

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Answer:

I believe it would be $2 per bag normally.

Step-by-step explination:

If you take $2 and subtract $.50 it is $1.50. Take that multiplied by the number of bags he bought (4), would mean he spent $6 at Wal-mart.

Now $2 subtracted my the sale of $1, is $1 per bag. If he bought 6 bags at Kroger, 1 multiplied by 6, would equal 6. Meaning he spent $6 at both stores if the price was $2.

Answer:

75.36

Step-by-step explanation:

First you would use the formula [tex]C=2\pi r[/tex] and the fill in your values, 2·3.14·12 and you will get 75.36.

Answer:

wait isn't the answer right there-

Answer:

[tex]-5\frac{1}{2}+2\frac{1}{2}=-3[/tex]

Step-by-step explanation:

[tex]-5\frac{1}{2}+2\frac{1}{2}[/tex] or [tex](-5+2)+(\frac{-1}{2}+\frac{1}{2}) =[/tex]

[tex]-3+\frac{-1+1}{2}=[/tex]

[tex]-3+\frac{0}{2} =[/tex]

[tex]-3[/tex]

I think this is right.(✿◠‿◠)

I hope this helps! (✿◕‿◕✿)

Answer:

Step-by-step explanation:

a² + b² + c² = ab + bc + ca

On multiplying both sides by “2”, it becomes

2 ( a² + b² + c² ) = 2 ( ab + bc + ca)

2a² + 2b² + 2c² = 2ab + 2bc + 2ca

a² + a² + b² + b² + c² + c² – 2ab – 2bc – 2ca = 0

a² + b² – 2ab + b² + c² – 2bc + c² + a² – 2ca = 0

(a² + b² – 2ab) + (b² + c² – 2bc) + (c² + a² – 2ca) = 0

(a – b)² + (b – c)² + (c – a)² = 0

=> Since the sum of square is zero then each term should be zero

⇒ (a –b)² = 0, (b – c)² = 0, (c – a)² = 0

⇒ (a –b) = 0, (b – c) = 0, (c – a) = 0

⇒ a = b, b = c, c = a

∴ a = b = c.

hence

a+b/b​

a+a/a= (since a=b)

2a/a=

a....

Answer:

The equation that represents the number of flyers Max made be represented as : 4(x)

Where x is the number flyers Max put in his bag.

Hence, Max made 40 flyers.

Step-by-step explanation:

Mark divides all the flyers evenly among 4 bags, one for each person.

Let the number of flyers Max put in the bag is represented by x

The equation that represents the number of flyers Max made be represented as : 4(x)

Each bag contains 10 flyers.

= 4(10 flyers)

= 40 flyers.

Answer:

Step-by-step explanation:

If two lines are parallel then they will have the same slope. So all you need to do is find the slope of the line that joins the two given points. You can use the slope formula [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]. You can also graph the two points and use rise over run. [tex]\frac{7-(-5)}{-5-7} =\frac{12}{-12}=-1[/tex]

-1  is the slope of a line that is parallel to the line joining (7,-5) and (-5,7)

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.

Given, a line that is parallel to the line joining (7,-5) and (-5,7)

Since lines are parallel to each other thus their slope will be the same.

From the general formula of slope:

Slope = (y₂ - y₁)/(x₂ - x₁)

Slope = (7 + 5)/ -5 - 7)

Slope = -1

Therefore, the slope of a line that is parallel to the line joining (7,-5) and (-5,7) is -1.

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Complete question :

Continent _________building _height(m)

________Carlton center office tower _ 223m

_________ burj Khalifa ____________828m

_________ QI ________________323

_________ the shard _________310

_________ Willis tower _______442

_________ grand torre ______300

Answer:

Kindly check explanation

Step-by-step explanation:

1 meter is approximately 3.28 feets

Height of the buildings in feets is obtained by multiplying the height in meters by 3.28

Carlton center office tower = (223 * 3.28) = 731.44 feets

Burj Khalifa = (828 * 3.28) = 2715.84 feets

QI = (323 * 3.28) = 1059.44 feets

The Shard = (310 * 3.28) = 1016.8 feets

Willis tower = (442 * 3.28) = 1449.76 feets

Grand Torre = (300 * 3.28) = 984 feets

Answer:

B. 2/3

Step-by-step explanation:

The equation for area of a triangle is A=1/2bh

so we can plug in what were given

2/5 =1/2(6/5)b now we solve for b

2/5=6/10 b

2/5 divided by 6/10 =b

2/5 x 10/6 =b

4/6=b

2/3=b

Answer:

$7,750

Step-by-step explanation:

10% of 15,500 is 1,550 and 1,550 x 5 years = 7,750 and 15,500 - 7,750 = 7,750

Answer:

13/24

Step-by-step explanation:

1/3 + 1/8 = 11/24

1/1 - 11/24 = 13/24

(sorry if wrong)

Answer:

I would use associative property and the awnser should be -29+-18= -47

Step-by-step explanation:

i hope that helps im very sorry if thats not right

Answer:700x 10= 7,000

Answer: 7000

Step-by-step explanation:

Answer:

should be the last one 0.02

Answer:

pretty sure it's 3 7/8

Answer: D) It has no slope because x 2 minus x 1 in the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction is zero, and the denominator of a fraction cannot be zero.

Step-by-step explanation:

slope is y2-y1/x2-x1

20-10/7-7

10/0

denominator can't be 0

Answer:

D

Step-by-step explanation:

cause i said so

Answer:

50% profit

Step-by-step explanation:

Cost price = £ 5000

Selling price = £ 7500

Profit  = Selling price - cost price

        = 7500 - 5000

       = £ 2500

Profit percentage = [tex]\frac{2500}{5000}*100[/tex]

                             = 50 %

Answer:

2. -8 < x < -2

Step-by-step explanation:

The x-values of the line where the line slants downwards before it begins to slant upwards to the right, is the interval at which g(x) is decreasing only.

From the graph, at x = -8, y = -2. When x = -2, y = -5.

Between the intervals of x = -8 and x = -2, g(x) decreased from -2 to -5.

Therefore, the answer is: 2. -8 < x < -2

Answer:

x = 39°

Step-by-step explanation:

The triangle shown is a right angle triangle having angles 90°, 51° and x°.

Sum of interior angles of a triangle = 180°, therefore:

[tex] 90 + 51 + x = 180 [/tex]

Add like terms

[tex] 141 + x = 180 [/tex]

Subtract 141 from each side

[tex] 141 + x - 141 = 180 - 141 [/tex]

[tex] x = 39 [/tex]

x = 39°

Answer:

1,75 m

Step-by-step explanation:

The radius is by definition half of the diameter and so the half of 3.5 m is 1.75 m

Answer:

1.75m

Step-by-step explanation:

d=3 ½

r=d÷2

so 3 ½ ÷ 2= 1.75

Answer: B. 2x + y = 10; 5 minutes

Given :

To Find :-

Solution :-

Here , 96° & 2x° are co - interior angles and we know that the sum of co - Interior angles is 180°.

⇒ 96° + 2x = 180° .

⇒ 2x = 180° - 96° .

⇒ 2x = 84° .

⇒ x = [tex]\red{\sf \dfrac{84^{\circ}}{2}}[/tex]

[tex]\bf\longmapsto x = 42^{\circ}[/tex]

Hence value of x is 42° .

Similarly , 94° & ( 3y + 44) ° are co- interior angles

⇒ 94° + ( 3y + 44)° = 180° .

⇒ ( 3y + 44 )° = 180° - 94° .

⇒ 3y + 44° = 86°.

⇒ 3y = 86° - 44° .

⇒ 3y = 42° .

⇒ y = [tex]\sf \red{\dfrac{42^{\circ}}{3}}[/tex]

[tex]\bf\longmapsto y = 14^{\circ}[/tex]

Hence the value of y is 14°.