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2 years ago

Which percentage is greater?? 57.68 or 57.8%

Mathematics

2 answers:

alexandr1967 [171]2 years ago

6 0

57.8% is greater than 57.68%

erma4kov [3.2K]2 years ago

3 0

57.8 is greater. This is because of you change 57.68 to only go to the tenth’s place you have to round to this place. And since the 8 in 57.68 is greater than 5 we add 1 to the 6 making it 57.7 which is less than 57.8

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Write a linear equation that passes through the point (2,-9) and has a slope of -5

Doss [256]

Answer:

y=-5x+1

Step-by-step explanation:

y-y1=m(x-x1)

y-(-9)=-5(x-2)

y+9=-5x+10

y=-5x+10-9

y=-5x+1

3 0

3 years ago

X^2-8x+16 divided by ax-4x numerator

Vedmedyk [2.9K]

Answer:

Given:

1). $x^2-8x+16$ divided by $x-4$

⇒ $\frac{x^2-8x+16}{x-4}$

⇒ $\frac{x^2-2\times x\times 4+4^2}{x-4}$

By factorising numerator by using identity, $(a-b)^2=a^2-2\times a \times b +b^2$

⇒ $\frac{(x-4)^2}{x-4}$

⇒ $\frac{(x-4)\times(x-4)}{x-4}$

⇒ $x-4$ {Answer}

2). $3x^2y$ divided by $6xy^2$

⇒ $\frac{3x^2y}{6xy^2}$

⇒ $\frac{3\times x\times x\times y}{6\times x\times y\times y}$

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4 0

3 years ago

P (D) = .42, P (E) = .27, and P (D ∩ E) = .15 P (D U E)

Paul [167]

We know that $P(D\cap E)=P(D)P(E)=\boxed{0.1134}$ .

And $P(D\cup E)=P(D)+P(E)-P(D\cap E)=\boxed{0.5766}$ .

Hope this helps.

6 0

3 years ago

What two numbers add to 9 and multiply to -70

Alborosie

X, y - the numbers

The numbers add to 9 and multiply to -70.
$x+y=9 \\
xy=-70 \\ \\
y=9-x \\
xy=-70 \\ \\
\hbox{substitute 9-x for y in the second equation:} \\
x(9-x)=-70 \\
9x-x^2=-70 \\
-x^2+9x+70=0 \\
-x^2+14x-5x+70=0 \\
-x(x-14)-5(x-14)=0 \\
(-x-5)(x-14)=0 \\
-x-5=0 \ \lor \ x-14=0 \\
x=-5 \ \lor \ x=14 \\ \\
y=9-x \\
y=9-(-5) \ \lor \ y=9-14 \\
y=14 \ \lor \ y=-5 \\ \\
(x,y)=(-5,14) \hbox{ or } (x,y)=(14,-5)$

The numbers are -5 and 14.

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2 years ago

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Monica [59]

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3 years ago