All categories

3 years ago

ON THE SMARTBOARD, THE

Mathematics

1 answer:

Dafna11 [192]3 years ago

5 0

answer

width = 98 cm

length = 105 cm

set up equations

the perimeter of a rectangle = 2W + 2L

p = 2W + 2L

the perimeter is also 406

406 = 2W + 2L

we know that the length of the rectangle is 7 cm longer than the width so

L = W + 7

substitute equations and solve for width

plug L into p = 2W + 2L to get

406 = 2W + 2(W + 7) distribute the 2 to the terms in the parentheses

406 = 2W + 2W + 14

406 = 4W + 14

392 = 4W

W = 98

substitute equations and solve for length

now that we know the width, we can substitute W in L = W + 7 to find length

L = W + 7

L = 98 + 7

L = 105

final dimensions

width = 98 cm

length = 105 cm

You might be interested in

Multiply or divide as indicated. p^8 • p^-3 • p^2

NeTakaya

P^8 • p^−3 • p^2=p^10/p^3=p7

3 0

3 years ago

URGENT. PLEASE HELP WITH PROBLEM WITH EXPLANATION!!!

IRINA_888 [86]

Answer:

D is the answer of the question

3 0

3 years ago

Describe the end behavior of the function f(x)=-2x^4- x^3 +3.

Hoochie [10]

Answer:

Step-by-step explanation:

For a polynomial , the behaviour as x gets large is determined by the term of greatest degree,

f(x) = - 2 $x^{4}$ - x³ + 3

Is of even degree with a negative leading coefficient , then

f(x) → - ∞ as x → + ∞ and f(x) → - ∞ as x → - ∞

6 0

2 years ago

Solve the formula for the specified variable. V=CMU for C

damaskus [11]

In order to get c by itself you will need to divide MU by both sides give you V/MU=C

6 0

3 years ago

Use the function f(x)=-1|x-4|+3 and an initial value of 1.5. Find the last two iterations and make sure that you show all your w

dezoksy [38]

9514 1404 393

Answer:

f²(1.5) = -0.5
f³(1.5) = -1.5

Step-by-step explanation:

$f^2(1.5)=f(f(1.5)) = -1|0.5 -4|+3\\\\=-1|-3.5|+3\\\\=-1(3.5)+3\\\\=\boxed{-0.5}\\\\f^3(1.5)=f(f^2(1.5))=-1|-0.5-4|+3\\\\=-1|-4.5|+3\\\\=-1(4.5)+3\\\\=\boxed{-1.5}$

6 0

2 years ago