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2 years ago

What is 6/12 plus 3/12

Mathematics

2 answers:

Lilit [14]2 years ago

3 0

Answer:

3/4

Step-by-step explanation:

Decimal form: 0.75

Dovator [93]2 years ago

3 0

Step-by-step explanation:

so you have the same denominator, which means that you can just add the numerator. 6+3 =9 which gets you 9/12 BUT we want to make its simplified so we do 9/12 divided by 3 is 3/4

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Make x the subject of formular y=5√x+3-4

pochemuha

Answer:

x={(y+1) / 5}²

Step-by-step explanation:

y = 5√x +3 -4

⇒y = 5√x -1

add 1 on both sides

⇒ y + 1 = 5√x

divide both sides by 5

⇒(y+1) / 5 = (5√x) /5

⇒(y+1) / 5 = √x

now, square both sides

⇒{(y+1) / 5}² = (√x)²

∴{(y+1) / 5}² = x

8 0

3 years ago

What is the slope of a line that contains the points (12,17) and (-8,-17)

professor190 [17]

$\frac{y2 - y1}{x2 - x1}$
$\frac{ - 17 - 17}{ - 8 - 12} = \frac{ - 34}{ - 20} = \frac{17}{10}$
Alternative forms:
$1 \frac{7}{10} \: or \: 1.7$
Slope: 17/10
Equation : y= 17/10x

6 0

3 years ago

(5+5i)(5-5i)=what????

Irina18 [472]

(First,Outer,Inner,Last)
25-25i+25i-25
0

3 0

2 years ago

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The fraction 2/5 is equivalent to 0.4 and 2 40%. Write 0.4 and 40% as unreduced fractions.

Bezzdna [24]

0.4 = 4/10
40% = 40/100

5 0

2 years ago

What is the quotient 2y^-6y-20/4y+12 ÷ y+5y+6/3y^2+28y+27

malfutka [58]

Answer with explanation:

$\rightarrow \frac{\frac{2y^2-6 y-20}{4 y+12}}{\frac{y^2+5 y+6}{3 y^2+28 y+27}}\\\\\rightarrow \frac{\frac{y^2-3y-10}{2 y+6}}{\frac{(y+2)(y+3)}{3 y^2+28 y+27}}\\\\\rightarrow \frac{\frac{(y-5)(y+2)}{2 (y+3)}}{\frac{(y+2)(y+3)}{3 y^2+28 y+27}}\\\\\rightarrow \frac{(y-5)(y+2)}{2 (y+3)}} \times {\frac{3 y^2+28 y+27}{(y+2)(y+3)}}\\\\ \rightarrow\frac{(y-5)\times(3 y^2+28 y+27)}{2 (y+3)^2}}$

→y²+5y+6

=y²+3 y+2 y+6

=y×(y+3)+2×(y+3)

=(y+2)(y+3)

→y² -3 y-10

=y² -5 y+2 y -10

=y×(y-5)+2×(y-5)

=(y+2)(y-5)

6 0

3 years ago

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