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3 years ago

A rectangle with an area of 47 m² is dilated by a factor of 7. What is the area of the dilated rectangle?

1 answer:

8 0

We already know that the area of the rectangle increased by a square of the factor 7. So the dilated area of it (which we will call "Ad"), is:

Ad= (47)(7^2)
Ad= 47x49
Ad= 2303 m^2

What is the area of the dilated rectangle? The area of the dilated rectangle is 2303 m^2.

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The sum of three consecutive numbers is 45. What is the<br> largest of these numbers?

Arturiano [62]

Answer:

14,15,16

Step-by-step explanation:

a+a+1 +a+2=45

3a+3 =45

3a=45-3

3a=42

a=42:3 =14(the first number

14+1=15 (the second number

14+2=16 (the third number, the largest number

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3 years ago

jordan has been offered two summer jobs. one job pays 7 owr hour. the other 50 a week plus 5 per hour. how many hours would jord

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He would have to work 24 weeks to get the same amount from each job.

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3 years ago

Find the equation of a line parallel to the line 2x-y-9=0 and passing through the point of intersection of the lines 5x+y+4=0 an

Cerrena [4.2K]

Answer:

$y=2x-3$

Step-by-step explanation:

1. Using the point of intersections, we use the substitution method to find the coordinates of the line parallel to $2x-y-9=0$

$5x+y+4=0$

$y= -4-5x$

substituting the value of y in $2x+3y=1$ :

$2x +3(-4-5x)=1\\\\2x-12-15x-1=0\\-13x=13x\\x= \frac{13}{-13}= -1$

substituting x=-1 in y= -4-5x:

$y= 1$ (upon solving, you should get this)

$(x,y)= (-1,1)$

2. Using y=mx+c and making y the subject of the formula 2x-y-9=0 and using the coordinate we found earlier, we will find the equation of the parallel line. (We make y the subject of the formula to find the gradient)

$2x-y-9=0\\2x-9=y\\y= 2x-9$

$y= mx+c\\$

-1= 2 x 1 +c

-3=c

y= 2x-3

3 0

3 years ago

Find the area of the figure. Answer will be in cm squared.

ddd [48]

Answer:

Step-by-step explanation:

A= 1/2h (b1+b2)

A= 1/2 (4) (8+4)

A= 1/2 (4) (12)

A= 1/2 (48)

A= 24

Can i please have brainiest :)

7 0

3 years ago

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