All categories

3 years ago

The choices are

Mathematics

2 answers:

gayaneshka [121]3 years ago

6 0

Answer:

Perimeter = (lenght×2) + (width×2)

Perimeter = (2.5n×2) + (2×(4n+5))

Perimeter = 5n + 8n + 10

Perimeter = 13n + 10

The Answer is D

Ksju [112]3 years ago

3 0

Answer:

13n+10

Step-by-step explanation:

The formula for perimeter of rectangle = 2*(L+B)

L = 4n+5

B = 2.5n

Perimeter = 2 * (4n + 5 + 2.5n)

Perimeter = 2 * (6.5n + 5)

Perimeter = 13n + 10

You might be interested in

Turn this into numerical form -> one-half the sum of x and 12 Thank you!

ycow [4]

Answer: 1/2(x+12)

Step-by-step explanation: Sum is adding.

3 0

3 years ago

The first floor of a house consists of a kitchen, playroom, and dining room. The areas of the kitchen, playroom, and dining room

guapka [62]

Answer: don’t know give me brainless

Theory: cause

7 0

3 years ago

I have to find the angle measurements of a interior triangle a is 4x b is 7x-2 and c is 5x-10

RSB [31]

Answer:

$m\angle a=48^o\\m\angle b=82^o\\m\angle c=50^o$

Step-by-step explanation:

we know that

The sum of the interior angles in any triangle must be equal to 180 degrees

$m\angle a+m\angle b+m\angle c=180^o$

substitute the given values

$4x^o+(7x-2)^o+(5x-10)^o=180^o$

solve for x

$(16x-12)^o=180^o$

$16x=180+12\\16x=192\\x=12$

Find the angle measurements

$m\angle a=4(12)=48^o$

$m\angle b=7(12)-2=82^o$

$m\angle c=5(12)-10)=50^o$

5 0

3 years ago

What is the answer to this math problem

vesna_86 [32]

Hello from MrBillDoesMath!

Answer:

1/243

Discussion:

3^(-3) * 3^(-2) => as a^m * a^n = a^(m+n), the exponents add

= 3^ (-3 -2)

= 3^ (-5) =

= 1/ 3^5 => as 3^5 = 243

= 1/243

which is approximately .0041

Thank you,

MrB

7 0

4 years ago

Read 2 more answers

Kelsey had $65 to spend on books. Each book cost $5.50, and there was a $7.50 fee for shipping. She let b equal the number of bo

larisa86 [58]

Kelsey must spend less than or equal to $65.
The expression 5.50b+7.5 is correct
Kelsey able to purchase 10 books.
On the end Kelsey can spend $2.50 to purchase small present (calendar or book for notes)

6 0

3 years ago

Read 2 more answers