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3 years ago

13

What does it mean to multiply divide fractions

1 answer:

ElenaW [278]3 years ago

4 0

Answer:

Step-by-step explanation:

when multiplying they help each other out

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You have a rectangular piece of fabric with side lengths of 7 inches and 4 inches. What is the area of the biggest possible squa

Pavel [41]

Answer:

If you were to cut it in half (3.5 x 2)

The answer would be 7

Step-by-step explanation:

8 0

3 years ago

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A certain triangle has side lengths of 125 feet, 142 feet, and 250 feet. Which of the corresponding side lengths below represent

madam [21]

Answer: 100ft 113.6ft 200ft

Step-by-step explanation:

These new lengths are all ⅘of the original length

6 0

2 years ago

Line L is shown in the coordinate plane. a. What are the coordinates of points and ? b. Is the point (16,20) on line L ? Explain

kipiarov [429]

Answer:

so its will be the equal number

Step-by-step explanation:

pls dont get mad if I'm wrong I tried :)

3 0

3 years ago

HOW DO YOU CONVERT SURFACE AREA TO VOLUME! <br> HELP!!!!<br> WILL MARK BRAINLIST!!

slamgirl [31]

Answer:

Formulas for a rectangular prism:

Volume of Rectangular Prism: V = lwh.

Surface Area of Rectangular Prism: S = 2(lw + lh + wh)

Space Diagonal of Rectangular Prism: (similar to the distance between 2 points) d = √(l2 + w2 + h2)

Step-by-step explanation:

Hope it helps :))))

3 0

3 years ago

Help me please!!?!?? ?

Mekhanik [1.2K]

1

$3x^2 + 5y^2 - 12x + 30y + 42 = 0$

$3x^2 - 12x + 5y^2 + 30y = - 42$

$3(x^2 - 4x) + 5(y^2 + 6y) = -42$

$3(x^2 -4x + 4) + 5(y^2 + 6y + 9) = -42 + 12 + 45$

$3(x-2)^2 + 5(y+3)^2 = 15$

$\dfrac{(x-2)^2}{5} + \dfrac{(y+3)^2}{3} = 1$

Ellipse, same signs different coefficients on $x^2$ and $y^2$

2

$9x^2 -36x - 4y^2 + 8y = 4$

$9(x^2 - 4x + 4) - 4(y^2 - 2y + 1) = 4 + 36 - 4$

$9(x- 2)^2 - 4(y - 1^2) = 36$

Hyperbola, opposite signs on $x^2$ and $y^2$

3

$y = x^2 +2x + 3 = (x + 1)^2 + 2$

parabola

4

$x^2 - 4 x + y^2 + 4y = 4$

$(x - 2)^2 + (y+2)^2 = 4 + 4 + 4 = 12$

equal coefficents on $x^2$ and $y^2$ , circle

5

$-9x^2 - 18x + 4y^2 - 8y = 41$

$-9(x^2 -2x + 1) + 4(y^2 - 2y + 1) = 41 - 9 + 4$

$-9(x-1)^2 + 4(y-1)^2 = 36$

hyperbola, opposite signs

6

$-4x = y^2 - 2y - 11 = (y-1)^2 - 12$

That's a parabola, sideways open to the left

7

$2(x^2 + 6x) + 3(y^2 - 8y) = -60$

$2(x^2 + 6x + 9) + 3(y^2 - 8y + 16) = -60 + 18 + 48$

$2(x+3)^2 + 3(y - 4)^2 = 6$

$\dfrac{(x+3)^2}{3} + \dfrac{(y-4)^2}{2} = 1$

Ellipse, different coefficients

8

$16x^2 - 32x - y^2 - 6y = 57$

$16(x^2 - 2x + 1) - (y^2 + 6y + 9) = 57 + 16 - 9 = 64$

opposite signs, hyperbola

You'll have to do the graphing yourself, sorry

4 0

3 years ago