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2 years ago

7

HELPPP KE PJEASE. ASAPPPP ITS FOR A QUIZZZ

1 answer:

san4es73 [151]2 years ago

8 0

=(1/2) * 2 * 3.2 + (1/2) *2 * 3.2 + (1/2) * 2 * 4 + (1/2) * 2 * 4
= 2 * 3.2 + 2 * 4
= 2 * (3.2 + 4)
= 2 * 7.2
= 14.4 sq feet
2 * 14.4 = 28.8 sq feet

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The line with equation x-3y-27=0 meets the parabola y²=4x at two points. Find their coordinates

lesantik [10]

$x-3y-27=0\\
y^2=4x\\\\
x-3y-27=0\\
x=\frac{y^2}{4}\\\\
\frac{y^2}{4}-3y-27=0\\
y^2-12y-108=0\\
y^2-12y+36-144=0\\
(y-6)^2=144\\
y-6=-12 \vee y-6=12\\
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4 0

2 years ago

Read 2 more answers

Pani-rosa [81]

The vertices of the triangle are the points where any pair of lines intersect.

We start by setting up the system

$\begin{cases}y=-x+2\\y=2x-1 \end{cases} \iff -x+2=2x-1 \iff 3x=3 \iff x=1$

Using one of the two equations we can derive the correspondent y value:

$f(x)=-x+2 \implies f(1)=-1+2 = 1$

So, one vertex is (1, 1)

We choose the other two pairs of lines to find the other vertices:

$\begin{cases}y=-x+2\\y=x-2 \end{cases} \iff -x+2=x-2 \iff x=2 \implies y = 0$

$\begin{cases}y=x-2\\y=2x-1 \end{cases} \iff x-2=2x-1 \iff x=-1 \implies y=-3$

So, the three vertices are (1, 1), (2, 0), (-1, -3).

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2 years ago

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solmaris [256]

Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

First find the discount and subtract 32.55 is discount

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2 years ago

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Question 2 (1.25 points) Question 2 options: Parallelogram ABCD is a rectangle. AC = 5y − 2BD = 4y +1 What is the value of y? En

avanturin [10]

Answer: The value of y is 3 units.

Step-by-step explanation:

Since we have given that

ABCD is a rectangle

So, their both diagonals are equal .

so, AC= BD

here,

$AC=5y-2\\\\BD=4y+1$

So, According to question,

$AC=BD\\\\5y-2=4y+1\\\\5y-4y=1+3\\\\y=3$

Hence, the value of y is 3 units.

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3 years ago