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3 years ago

Guys I need help

Mathematics

2 answers:

Vinil7 [7]3 years ago

5 0

If I was you I would just make a new account, the same thing happened to me and yea just make a new one

ivann1987 [24]3 years ago

4 0

Answer:

ok after answering a question go to the answers of that question then you'll see a place written comment then press it and you'll be able to comment

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The width of a rectangle painting is 3 in. more than twice the height. A frame that is 2.5 in. wide goes around the painting.

Black_prince [1.1K]

A.
$A=(2h+8)(h+5)$

b.
If h = 12
$A=(24+8)(12+5)=(32)(17)=544$

c.
If h = 15
$A=(30+8)(15+5)=(38)(20)=760$

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3 years ago

Describe the transformations needed to translate the graph y=1/x to the graph of y=1/x+3 -4

S_A_V [24]

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3 years ago

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Find the product and sum of the roots of the equation:<br> 2x^2-9x-10=0

BabaBlast [244]

Answer:

<h3> sum of the roots: $x_1+x_2=4\frac12$ </h3><h3> product of the roots: $x_1x_2=-5$ </h3><h3> Step-by-step explanation:</h3>

$2x^2-9x-10=0\quad\implies\quad a=2\,,\ b=-9\,,\ c=-10$

$b^2-4ac=(-9)^2-4(2)(-10)=81+80=161>0$

From Vieta's formulas applied to quadratic polynomial we have:

if $b^2-4ac\geqslant0$ then

sum of roots: $x_1+x_2=-\dfrac ba=-\dfrac{-9}2=4\frac12$

product of the roots: $x_1x_2=\dfrac ca=\dfrac{-10}2=-5$

3 0

3 years ago

What is the solution to the equation x + 5.7 = 6.1?

Ann [662]

The solution is X=0.4

4 0

3 years ago

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Generate two numerical patterns

Klio2033 [76]

Answer:

vvv

Step-by-step explanation:

2,4,6,8,10

Pattern Rule:Add 2

1,2,4,8,16

Pattern:Multiply by 2

Sorry these were simple.

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3 years ago