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3 years ago

7

If the graph of y=x^2 is vertically stretched by the factor 3, reflected over the x-axis, translated left 7 and up 9, what would

be the equation?
A) y= -3(x + 7)^2 +9
B) y= (3x + 7)^2 +9
C) y= 3(x + 7)^2 +9
D) y= (-3x + 7)^2 + 9

1 answer:

julia-pushkina [17]3 years ago

8 0

Y=-3xt7 2 + 9 is my answer

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A figure is composed of a rectangle and a right triangle. What is the area of the figure?

strojnjashka [21]

QUESTION 1

The figure is a tra-pezoid.

The area of a trapezoid is given by the formula;

$A=\frac{1}{2}(Sum\:of\:parallel\:sides)\times h$

We substitute the values to obtain;

$Area=\frac{1}{2}(13.2cm+8.4cm)\times 6cm$

$Area=\frac{1}{2}(21.6cm)\times 6cm$

$Area=64.8cm^2$

QUESTION 2

The approximate length of the ribbon is equal to the circumference of the circular table cloth.

We can find this by using the formula for calculating the circumference of a circle.

$C=2\pi r$

where $r=3.5ft$ is the radius of the circular table cloth.

We substitute this value and $\pi=3.14$ into the formula to get;

$C=2(3.14)(3.5)ft$

$C=21.98ft$

The approximate length of the ribbon is 22.0ft to the nearest tenth.

QUESTION 3

Type of quadrilateral:Rectangle

Explanation: A rectangle has 4 angles that are right angles.

The two pairs of opposite sides of a rectangle are also congruent.

QUESTION 4.

The circumference of a semi circle is calculated using the formula;

$C=\pi r$

where $r=12.5cm$ is the radius of the semicircle.

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$C=39.25cm$

QUESTION 5

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$Area=\frac{1}{2}\times3.14\times12.5^2+\frac{1}{2}\times25\times 24$

$Area=345.3125+300$

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$Area\approx645cm^2$

QUESTION 6

The area of the parallelogram is given by the formula;

$A=bh$

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We substitute the values to obtain;

$23.7=3y$

$y=\frac{23.7}{3}$

$y=7.9in.$

QUESTION 7

The area of a rectangle is given by the formula;

$Area=l\times b$

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3 years ago

What is the slope of line PQ?

Scilla [17]

we know that

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$m=\frac{y2-y1}{x2-x1}$

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substitute in the formula

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<u>the answer Part b) is </u>

undefined

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we know that

Any line perpendicular to X-axis has slope undefined

Because the term $(x2-x1)$ will always be zero

so

<u>the answer Part c) is</u>

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3 years ago

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Tatiana [17]

Answer:

4) 26+4/842-/×375-^×

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Step-by-step explanation:

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2 years ago

-2=-(n-8)=<br> Help please!??

motikmotik

Answer:

n = 10

Step-by-step explanation:

move all terms to the left:

-2-(-(n-8))=0

calculate terms in parentheses: -(-(n-8)), so:

-(n-8)

get rid of parentheses

-n+8

add all the numbers together, and all the variables

-1n+8

go back to the equation:

-(-1n+8)

get rid of parentheses

1n-8-2=0

add all the numbers together, and all the variables

n-10=0

move all terms containing n to the left, all other terms to the right

n=10

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3 years ago

the slipperiness of a floor (demoted by S) can be defined as a function of the number or banana peels (denoted by P) and the are

QveST [7]

We have been given that the slipperiness of a floor (demoted by S) can be defined as $S=\frac{P}{A}$

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Area can be measured in $m^2$

Since, slipperiness of a floor is the ratio of these two hence, we have

$\text{slipperiness of a floor}=\frac{\text{Peels}}{m^2}$

A is the correct option.

3 0

3 years ago