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velikii [3]
3 years ago
5

Please help me! DO NOT SEND LINK!

Mathematics
2 answers:
azamat3 years ago
4 0
The area of the rectangle is 40 cm.
To find this, just multiply 8 and 5.
Area: length times width
Area: 8 times 5
Area: 40 cm

The perimeter of the rectangle is 26 cm.
Perimeter: 2L + 2W
Perimeter: 2(8) + 2(5)
Perimeter: 16 + 10
Perimeter: 26
Hope this helps!
Arte-miy333 [17]3 years ago
3 0

Answer:

Area is 40

perimeter is 26

Step-by-step explanation:

area = l×w

8 \times 5 = 40

Perimeter = 2L +2W

2 \times 8 + 2 \times 5 \\ 16 + 10 \\ 26

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3/5 ÷ 4/5 = ???<br> A. <br> 3/4<br> B. <br> 2/5<br> C. <br> 7/9
Ahat [919]

Answer:

Option A

Step-by-step explanation:

⅗ ÷ ⅘

⅗ × 5/4

= 3/4

<h2>HOPE IT HELPS</h2>
6 0
2 years ago
Read 2 more answers
If 25^x+1 = 125/5^x find the value of x
storchak [24]
  • Answer:

<em>x =1/3</em>

  • Step-by-step explanation:

<em>25ˣ⁺¹ = 125/5ˣ</em>

<em>5²⁽ˣ⁺¹⁾ = 5³/5ˣ</em>

<em>5²⁽ˣ⁺¹⁾ = 5³ : 5ˣ</em>

<em>5²⁽ˣ⁺¹⁾ = 5³⁻ˣ</em>

<em>2(x + 1) = 3 - x</em>

<em>2x + 2 = 3 - x</em>

<em>2x + x = 3 - 2</em>

<em>3x = 1</em>

<em>x = 1/3</em>

8 0
2 years ago
A home improvement contractor is painting the walls and ceiling of a rectangular room. The volume of the room is 875.00 cubic fe
Reika [66]

Answer:

The room dimensions for a minimum cost are: sides of 10 feet and height of 8.75 feet.

Step-by-step explanation:

We have a rectangular room with sides x and height y.

The volume of the room is 875 cubic feet, and can be expressed as:

V=x^2y=875

With this equation we can define y in function of x as:

x^2y=875\\\\y=\dfrac{875}{x^2}

The cost of wall paint is $0.08 per square foot. We have 4 walls which have an area Aw:

A_w=xy=x\cdot \dfrac{875}{x^2}=\dfrac{875}{x}

The cost of ceiling paint is $0.14 per square foot. We have only one ceiling with an area:

A_c=x^2

We can express the total cost of painting as:

C=0.08\cdot (4\cdot A_w)+0.14\cdot A_c\\\\C=0.08\cdot (4\cdot \dfrac{875}{x})+0.14\cdot x^2\\\\\\C=\dfrac{280}{x}+0.14x^2

To calculate the minimum cost, we derive this function C and equal to zero:

\dfrac{dC}{dx}=280(-1)\dfrac{1}{x^2}+0.14(2x)=0\\\\\\-\dfrac{280}{x^2}+0.28x=0\\\\\\0.28x=\dfrac{280}{x^2}\\\\\\x^3=\dfrac{280}{0.28}=1000\\\\\\x=\sqrt[3]{1000} =10

The sides of the room have to be x=10 feet.

The height can be calculated as:

y=875/x^2=875/(10^2)=875/100=8.75

The room will have sides of 10 feet and a height of 8.75 feet.

4 0
3 years ago
GEOMETRY PEOPLE HELP MEEEEEEE
Jlenok [28]
The answer to that question is the letter B
5 0
3 years ago
Read 2 more answers
Gregory spins the spinner once. What is P(vowel)? <br> PLEASE HELP ME!!!
NikAS [45]

Answer:

There is two vowels and 6 sections in total

2 wanted sections / 6 total sections = 1/3

1/3 chance or 33.33333%

Step-by-step explanation:

7 0
3 years ago
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