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Alenkinab [10]
2 years ago
9

HELP ASAP

Mathematics
1 answer:
Schach [20]2 years ago
5 0

Answer:

Step-by-step explanation:

(a). A_{1} = x ( 2x + 1 ) = <em>2x² + x</em>

(b). A_{2} = 2( 2x + 1 )( 5x + 3 ) = <em>20x² + 22x + 6</em>

(c). A_{3} = 20x² + 22x + 6 - ( 2x² + x ) =

( 20x² - 2x² ) + ( 22x - x ) + 6 =

<em>18x² + 21x + 6</em>  

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What is one take away three fourths
MaRussiya [10]

Answer:

0.25

Step-by-step explanation:

6 0
2 years ago
Instructions: Use the ratio of a 30-60-90 triangle to solve for the variables. Leave your answers as radicals in simplest form.
wel

Answer:

n=42, m=42\sqrt{3}

Step-by-step explanation:

The side opposite the 30° angle is half the size of the hypotenuse. So, 84/2=42. Now, the side opposite the 60° angle is shown as 84/2 · \sqrt{3}, which is the same as 42√3.

6 0
3 years ago
Plz help ill give brainliest
horrorfan [7]

Answer:

Step-by-step explanation:

Cone

Givens

r = 1.5 inches

h = 4 inches

Formula

V = 1/3 pi r^2 h

V = 1/3 3.14 * 1.5^2 * 4

V = 1/3* 3.14 * 2.25 * 4

V = 9.42

Semi sphere

Givens

r = 1.5

Formula

V = 2/3 * pi * r^3

Solution

V = 2/3 * 3.14 * 1.^3

V = 7.065

Total

V = 9.42 + 7.065

V = 16.485

Rounded to the nearest 1/100

V = 16.49

Answer

First left column = 0

Next left column= 1

Tens column          6

Then the decimal  .

Next column          4               (Tens column)

Hundredths           9

8 0
3 years ago
Write each absolute value in a box to show the order from least to greatest.
arsen [322]

Answer:

|–2| |5| |–8| |11| |–12|

7 0
3 years ago
Read 2 more answers
If 3 times a certain number is increased by 4 the result is 28. What is the number?
Minchanka [31]
3x+4=28 because 3 times an unknown number was mentioned first and mentioned together so they will be together, increased by 4 is +4 and comes after, the result of is the same as equals so you put the equals sign and whatever number they gave after.
8 0
3 years ago
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