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3 years ago

Can you help this this question 40 points

Mathematics

2 answers:

Levart [38]3 years ago

5 0

Answer:

1. Equation 1

2. -2x-3(6x-11)=-7

3. x=2

4. y=1

5. (2,1)

Scilla [17]3 years ago

4 0

Do you need this in a graph form?

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The length of a rectangle is 4 more than twice the width. If the perimeter of the rectangle is 104 centimeters, what are the len

qaws [65]

Answer:

Make Width = 'x'

Length = 4 + 2x

Perimeter = 2 x Width + 2 x Length

86 = 2(x) + 2(4 + 2x)

86 = 2x + 8 + 4x

Collect like terms:

2x + 4x = 86 - 8

6x = 78

x = 13

Width = 13 cm

Length = 30 cm

Step-by-step explanation:

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4 years ago

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The label on a \frac{1}{4}

alexgriva [62]

Answer:

$183.63$ square feet area is covered by seeds per pound

Step-by-step explanation:

Given

$41\frac{1}{4}$ pound bag of seed cover an area of $7575$ square feet

$\frac{165}{4}$ pound bag of seed cover an area of $7575$ square feet

$7575$ square feet area is covered by $\frac{165}{4}$ pound bag of seed

Area in square feet covered by one pound bag of seed

$= \frac{7575}{\frac{165}{4} } \\= \frac{7575 * 4}{165} \\= 183.63$ square feet

4 0

3 years ago

Which polar coordinates represent the same point as (4, −π/2)

marin [14]

You can go full 2π rotate around counterclockwise so the angle wouldn't be negative.

So -π/2 + 2π = -π/2 + 4π/2 = 3π/2

So (4, 3π/2) is the same point as (4, -π/2)

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3 years ago

What number must you add to complete the square?<br> x2 + 8x = 11

notsponge [240]

Answer:

Step-by-step explanation:

The number to add on both sides to complete the square is the square of the numerical coefficient that accompanies the term in "x", divided by 2.

That is in our case: $(\frac{8}{2}) ^2 = 4^2=16$

Therefore:

$x^2+8x+16=11+16\\x^2+8x+16 = 27$

That way the left hand side of the equation becomes the perfect square of the binomial: (x+4).

You can also prove that such is correct by developing the square of the binomial:

$(x+4)^{2} = (x+4)(x+4)= x^2+4x+4x+16= x^2+8x+16$

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3 years ago

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slamgirl [31]

Answer:

Table B

Step-by-step explanation:

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3 years ago

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