Please help will give Brain!!

The expression (2x-3)(2x-3) can be written as (2x-3)² or 4x² - 12x + 9 after expanding by using the identity (a - b)² = a² -2ab + b²

It is defined as the combination of constants and variables with mathematical operators.

We have given an expression:

= (2x-3)(2x-3)

After multiplication:

= (2x-3)²

We can also expand the above expression by using the identity:

(a - b)² = a² -2ab + b²

= 4x² - 12x + 9

Thus, the expression (2x-3)(2x-3) can be written as (2x-3)² or 4x² - 12x + 9 after expanding by using the identity (a - b)² = a² -2ab + b²

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Answer:

[tex]\boxed{\textsf{ The amount shared by Nandi is \textbf{ Rs 500. }.}}[/tex]

[tex]\boxed{\textsf{ The amount shared by Thabo is \textbf{ Rs 1,000. }.}}[/tex]

Step-by-step explanation:

Given that Nandini and Thabo share Rs 1500 in the ratio 1:2 . And we need to find how much each gets . So lets take the given ratio be 1x :2x . Now here we can find the share of both as ,

[tex]\qquad\boxed{\boxed{\sf Share =\dfrac{ Ratio \ number }{Sum \ of\ ratio\ nos. }\times Amount }}[/tex]

Hence here the sum of ratio numbers would be 1+2 = 3 . Here the ratio number of Nandi is 1 and that of Thaboo is 2 . So ,

Share of Nandi :-

[tex]\sf\implies Share =\dfrac{ Ratio \ number }{Sum\ of\ ratio\ nos. }\times Amount \\\\\sf\implies Share_{(Nandi)}= \dfrac{1}{1+2}\times Rs\ 1,500 \\\\\sf\implies Share_{(Nandi)}= \dfrac{1}{3}\times Rs\ 1,500 \\\\\sf\implies \boxed{\pink{\frak{ Share_{(Nandi)}= Rs\ 500 }}}[/tex]

[tex]\rule{200}2[/tex]

Share of Thabo :-

[tex]\sf\implies Share =\dfrac{ Ratio \ number }{Sum\ of\ ratio\ nos. }\times Amount \\\\\sf\implies Share_{(Thabo)}= \dfrac{2}{1+2}\times Rs\ 1,500 \\\\\sf\implies Share_{(Thabo)}= \dfrac{2}{3}\times Rs\ 1,500 \\\\\sf\implies \boxed{\pink{\frak{ Share_{(Thabo)}= Rs\ 1,000 }}}[/tex]

Answer:

im sorry i need points

Step-by-step explanation:

Answer: z=5

Step-by-step explanation:

Answer:

5x + 70 = 320

Step-by-step explanation:

We know that Carmine paid an electrician a certain amount per hour, we also know that they worked for 5 hours. Therefore we have 5x.

He also got paid 70 for parts, meaning an extra $70

And we know that we have the total charge and that the main point of this question is to determine how much the electrician was paid per hour.

Therefore :

5x + 70 = 320

Answer:

b

Step-by-step explanation:

Reasoning: the square root of 16 is 4 and 81 square root is 9

so it is b pls give brainliest! have a good day

a) The length of shelf in centimeters is 72 cm

b) The length of shelf in metres is 0.72 m.

The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometres, feet, or any other measurement unit instead of miles.

Given:

A shelf measures 720 mm long.

a) As 1 cm = 10 mm

So, the length of shelf in centimeters

= 720 /10

= 72 cm

b) As 1 m = 1000 mm

So, the length of shelf in meters

= 720 /1000

= 0.72 m

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Answer:

bacteria A

Step-by-step explanation:it is growing at a faster rate

Answer: Bacteria A

Step-by-step explanation:

becasue the growth rate of bacteria a is growing faster than b

Answer:

the solution to the equation is 5

Answer:

n = 5

Step-by-step explanation:

We can substitute n for 5 in the equation to check and see if it is true.

2(5) - 3 = 7

10 - 3 = 7

hope this helps :)

Answer:

B) work backwards.

Step-by-step explanation:

Since they are asking for how much money he had at first and they displayed how much he spent without telling the amount of money at the start of the question, this is definitely a backwards question. For working backwards, you will need to do workings the opposite as what they said in the question.

Given:

The diameter of the cylindrical pipe = 6ft.

Height of the pipe = 34 ft

To find:

The volume of the pipe.

Solution:

We have,

Diameter of cylinder = 6 ft

Radius of cylinder [tex]=\dfrac{6}{2}=3[/tex] ft

Height of the pipe = 34 ft

Volume of a cylinder is

[tex]V=\pi r^2h[/tex]

Where, r is the radius and h is the height.

Putting r=3 and h=34, we get

[tex]V=\pi (3)^2(34)[/tex]

[tex]V=\pi (9)(34)[/tex]

[tex]V=306\pi [/tex]

[tex]V=306(3.14)[/tex]

[tex]V=960.84[/tex]

Therefore, the volume of the cylindrical pipe is [tex]306\pi \approx 960.84[/tex] cubic ft.

Answer:

8%

Step-by-step explanation:

5 increase 8% =

5 × (1 + 8%) = 5 × (1 + 0.08) = 5.4

Step-by-step explanation:

sides opposite to equal angles are equal in length :

angle45 = angle 45

r = s

by Pythagoras theorem :

r² + s² = (9√2 )²

s²+s²= 9 × 9 × 2

2s²= 9× 9×2

s²= 9 × 9

s= √9× 9

s = 9

r= s = 9 units .

plz mark my answer as brainlist plzzzz hope this will be helpful to you.

Answer:

Slope-Intercept Form. A function whose graph is a line or a part of a line is called a linear function. In general, a linear function is a function that can be represented by an equation in the form y = mx + b. The form y = mx + b, or f(x) = mx + b, is called the slope-intercept form of a linear equation

Step-by-step explanation:

hope this help:))

Answer:

172 degrees

Step-by-step explanation:

Answer:

4+(-5-i)

Step-by-step explanation:

what is "i"?

Answer:

8

Step-by-step explanation:

Answer:

36 units²

Step-by-step explanation:

I used the triangles' area to find the area of the quadrilateral. The area of a triangle is 1/2 x base x height. The top triangle is 1/2 x 5 x 10 or 25. The bottom triangle is 1/2 x 2 x 11 or 11. Add 25 + 11 to get the total area.

Hope it helps!

Answer: IT should be

Answer:

1

Step-by-step explanation:

When rounding to the nearest whole number by looking at the tenth's value. Remember if it is 5 or more you would raise the number while if it is 4 or less you would round down. In your case you would round down.

0.5, 0.6, 0.7, 0.8, 0.9=1 if rounded to nearest whole number.

0.1, 0.2, 0.3, 0.4=0 if rounded to nearest whole number.

Hope this helps!

Answer:

The missing angle is 109°

Answer: 2.1

Step-by-step explanation:

5n = 21/2  --  Rearrange the equation

5n = 10.5  --  Divide

n = 2.1       --  Simplify

Answer:

125

Step-by-step explanation:

2:5

50: ?

50 divided by 2 = 25

25 times 5 is = ?

50:125

di sure kung tama ^^

Answer:

yes!

Step-by-step explanation:

Answer: 16 units

Step-by-step explanation:

In similar triangles, the sides keep the same ratio, in this case 3:4:5.

Thus, because 12 is 3*4 and 20 is 5*4, x must be 4*4, or 16.

Hope it helps <3 :D

Answer:

1a. 156

1b. 147

2a. 45

2b. 84

3a. 160

3b. 108

4a. 210

4b.132

Answer:

Step-by-step explanation:

[0,7)

because the dot is colored in you need to have the bracket

Answer:

645.60m

Step-by-step explanation:The m will stand for months and it is a variable meaning you can replace it with the number of months and then just multiply it

135 is the answer hope this helps

Answer:

33.333% repeating, the 3 after the decimal repeats