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3 years ago

The length of a rectangle is 12 less than the width find the length and width of the rectangle if the area is 160 square meters

Mathematics

1 answer:

Svet_ta [14]3 years ago

5 0

Answer:

the width is 13.11meter and the length is 1.11meter

Step-by-step explanation:

let the width be x and the length be x-12

area = 160 = l×b = x×x-12

x×x-12 = 160

x^2 = 172

x= 13.11

thus, the width is 13.11 and the length is 1.11

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when your finding the area of a rectangle do you multiply the numbers around the perimeter or add them.

Flura [38]

When you are finding the area, you multiply the length x the width. So for example, we have a rectangle that the length is 6 feet and the width is 4 feet. So, first of all we multiply 6x4= 24. Since its area don't forget it is Square Feet (or any other type of measurement).

Hope it helps!

3 0

3 years ago

Write an equation in slope-intercept forra for the line that passes through (1, - 2) and (3, 7)

Llana [10]

Answer:

y = 9/2x -6.5

Step-by-step explanation:

m = (7-(-2))/(3-1)

m = 9/2

b = -6.5

y = 9/2x -6.5

5 0

3 years ago

Three consecutive vertices of a parallelogram are (– 2, 1); (1, 0) and (4, 3). Find the coordinate of the fourth vertex and find

antiseptic1488 [7]

Answer:

D(1,4) - the fourth vertex, the area is equal to 12

Step-by-step explanation:

A(2,-1), B(1,0),C(4,3), They are consecutive, we need to find the point D, find the midpoint of AC (O)

xo= (xA+xc)/2 x0= (-2+4)/2=1

y0=(yA+yC)/2 y0= (1+3)/2=2

0(1,2)

O is the midpoint of BD, so let's find the vertex D

X0= (xB+xD)/2 1= (1+xD)/2 xD=1

y0= (yB+yD)/2 2= (0+yD)/2 yD=4

D(1,4)

the vector DA is (-2-1, 1-4)= (-3,-3)

the vector DC is (4-1, 3-4)= (3,-1)

The modul of DC is sqrt ((-3)^2+(-3)^2)= 3*sqrt2(the length of the side Dc)

The modul of DA is sqrt (3^2+(-1)^2)= sqrt10(the length of the side DA)

cosD= (-3*3+(-3)(-1))/3*sqrt2*sqrt10=-6/3*2*sqrt5=-1/sqrt5

sinD= sqrt (1- 1/5)=2/ sqrt5

S=3sqrt2*sqrt10*2/sqrt5= 12

6 0

2 years ago

I just want to see if my answer is correct, I haven't done volume in a long time!

motikmotik

You did it right because 12 x 2 = 24 x 8 = 192

7 0

3 years ago

Read 2 more answers

Given the Functions.

andrew-mc [135]

Answer:

a. g(-1)=-16
b. g(2)=2
e. f(2)=4

Step-by-step explanation:

When numerous function evaluations are involved, it is convenient to let a calculator or spreadsheet do them.

The function values that match your answer list are shown above.

3 0

3 years ago