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4 years ago

13

Given image A' B' C' D' E' if the pre-image contained point A(-1,5), which of the transformation resulted in image A' B' C' D' E

'

1 answer:

Svetradugi [14.3K]4 years ago

5 0

Answer: c

Step-by-step explanation:

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Alexei wants to hang a mirror in his boat and put a frame around it. The mirror and frame must have an area of 19.25 square feet

zhuklara [117]

Let

x---------> the thickness of the frame in feet

At-------> Area of the mirror and the frame in square feet

we know that

$At=19.25ft^{2}$ ------> equation $1$

$At=(3+2x)*(5+2x)\\ At=3*5+3*2x+5*2x+2x*2x\\ At=15+6x+10x+4x^{2} \\ At=4x^{2} +16x+15$ --------> equation $2$

equate equation $1$ and equation $2$

$19.25=4x^{2} +16x+15\\ 4x^{2} +16x+15-19.25=0\\ 4x^{2} +16x-4.25=0$

therefore

the answer is the option

$C. 4x2 + 16x - 4.25 = 0$

5 0

3 years ago

Read 2 more answers

Lucy is a dress maker. She sews \dfrac47

Strike441 [17]

Answer:

$\frac{16}{21}$ dresses

Step-by-step explanation:

We are given that

Lucy sews dress in 3/4 hours= $\frac{4}{7}$ of dress

Lucy sews at constant rate.

We have to find the number of dresses sewed by Lucy in hour.

To find number of dress sewed by Lucy in 1 hour we will use unitary method.

By using unitary method

Lucy sews in 3/4 hours= $\frac{4}{7}$ dress

Lucy sews in 1 hour= $\frac{\frac{4}{7}}{\frac{3}{4}}$

Lucy sews in 1 hour= $\frac{4}{7}\times \frac{4}{3}$

Lucy sews in 1 hour= $\frac{16}{21}$ dresses

Hence, Lucy sews $\frac{16}{21}$ dresses in 1 hour.

5 0

3 years ago

Can anybody tell what this is

Rzqust [24]

The answer is c...the domain is the set of all real numbers greater than -4

7 0

3 years ago

beks73 [17]

Answer:

5 units

Step-by-step explanation:

Length AB,

Just apply the formula;

Length between two points =square root of [(difference in x coordinates)^2 + (difference in y coordinates)^2]

Length AB =square root of [(4 - 7)^2 + (-5 - - 9)^2]

Length AB =square root of [ (-3)^2 + (4)^2]

Length AB = square root of (25)

Length AB = 5 units

6 0

3 years ago

Read 2 more answers

Answer ASAP please

Vikki [24]

<u>Answer</u>:

h = 16 || solution after squaring: $x = -0.683$ <em> or </em> $x = -7.32$

<u>steps by fieranswererft</u>:

Given: $x^2+8x+5=0$

Take half of the x term and square it

$[8*\frac{1}{2} ]^2=16$

$x^2+8x+16=- 5+16$

$(x+4)^2=-5+16$

$(x+4)^2=11$

$x+4 = \pm \sqrt{11}$

$x = \pm \sqrt{11}-4$

$x = -0.683$ <em> or </em> $x = -7.32$

7 0

3 years ago