What are the coordinate of ABC after a dilation with center 0,0 and a scale factor of 3

What expressions are equivalent to -56z + 28

makvit [3.9K]

Answer:

3b+b and 2(2b)

Step-by-step explanation:

4 0

3 years ago

The standard form of the equation of a parabola is y = x2 - 8x + 29. What is the vertex form of the equation?

Bess [88]

Y = x² - 8x + 29
y = (x² -8x +4²) + 29 -4² . . . . add and subtract the square of half the x-coefficient
y = (x -4)² + 13 . . . . . . . . . . . . simplify

The appropriate choice is
C. y = (x - 4)² + 13

7 0

3 years ago

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Please help me i need to find the area of shaded region please help me

Montano1993 [528]

Answer:

Part 1) $A=60\ ft^2$

Part 2) $A=80\ cm^2$

Part 3) $A=96\ m^2$

Part 4) $A=144\ cm^2$

Part 5) $A=13\ m^2$

Part 6) $A=(49\pi -33)\ in^2$

Step-by-step explanation:

Part 1) we know that

The shaded region is equal to the area of the complete rectangle minus the area of the interior rectangle

The area of rectangle is equal to

$A=bh$

where

b is the base of rectangle

h is the height of rectangle

so

$A=(12)(7)-(8)(3)\\A=84-24\\A=60\ ft^2$

Part 2) we know that

The shaded region is equal to the area of the complete rectangle minus the area of the interior square

The area of square is equal to

$A=b^2$

where

b is the length side of the square

so

$A=(12)(8)-(4^2)\\A=96-16\\A=80\ cm^2$

Part 3) we know that

The area of the shaded region is equal to the area of four rectangles plus the area of one square

so

$A=4(4)(5)+(4^2)\\A=80+16\\A=96\ m^2$

Part 4) we know that

The shaded region is equal to the area of the complete square minus the area of the interior square

so

$A=(15^2)-(9^2)\\A=225-81\\A=144\ cm^2$

Part 5) we know that

The area of the shaded region is equal to the area of triangle minus the area of rectangle

The area of triangle is equal to

$A=\frac{1}{2}(b)(h)$

where

b is the base of triangle

h is the height of triangle

so

$A=\frac{1}{2}(6)(7)-(4)(2)\\A=21-8\\A=13\ m^2$

Part 6) we know that

The area of the shaded region is equal to the area of the circle minus the area of rectangle

The area of the circle is equal to

$A=\pi r^{2}$

where

r is the radius of the circle

so

$A=\pi (7^2)-(3)(11)\\A=(49\pi -33)\ in^2$

6 0

3 years ago

The equation of the line through (3,-4) with slope 2/3 is?

alexira [117]

E maybe not certain that it is correct, hope it helps even tho i might be wrong

6 0

3 years ago

Could someone help me asap? :)

svetoff [14.1K]

Answer:

1. The top choice.

2. The third choice.

3. The third choice.

Step-by-step explanation:

Number one is a line, so it should have two arrows.

Number 2 is a segment, so it should have no arrows.

Number 3 is a ray, so it should have one arrow. (The letters need to be in the same direction as the ray, hence why it is BC and not CB)

5 0

4 years ago

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