1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
max2010maxim [7]
3 years ago
11

Please help me.

Mathematics
1 answer:
faltersainse [42]3 years ago
6 0

Answers:

Dimensions: 3 cm by 4 cm

Perimeter: 14 cm

Area: 12 square cm

========================================

Explanation:

We start off with a 12 cm by 16 cm rectangle, which turns into 3 cm by 4 cm when we divide each value by 4, which is the same as multiplying by 1/4. Alternatively, you can compute 1/4 = 0.25 first and then multiply 0.25 by 12 and 16 to get 3 and 4 respectively.

The length and width of this smaller rectangle is L = 3 and W = 4, so the perimeter P is

P = 2*(L+W) = 2*(3+4) = 2*7 = 14 cm

Alternatively, you can add up the four sides 3, 4, 3, 4 to get 3+4+3+4 = 7+7 = 14 which is the same perimeter value.

The area is

A = L*W = 3*4 = 12 square cm

note: You can write "square cm" as "cm^2"

You might be interested in
indictate which of the following are propositions.For the ones which are propositions, determine the truth value.(a) The integer
Semmy [17]

Answer:

Step-by-step explanation:

When we propose an hypothesis, it is either true or false. The same goes for a proposition.

The required objective here is to determine the truth value in the following proposition.

(a) The integer 24 is prime.

(b) Is the integer 3​15​ even?

(c) The sum of 3 and 4 is 12.

(d) -4 ∈ Ζ

From the first option:

(a) The integer 24 is prime.

The sentence is a proposition but the truth value is FALSE because a prime number is a number that can only be divide by 1 and itself but in the case of 24, Its factors include  1,2,3,4,6,8,12 and 24 which make 24 to falsify the proposition of being  a prime number.

(b) Is the integer 3​15​ even?

This option is not a proposition but rather a question since it has a question mark, however, 315 is an odd number since it is not divisible by 2.

( c)  The sum of 3 and 4 is 12.

This is a proposition and the truth value is FALSE

The sum of 3+4 = 7  ; Hence; 7 ≠ 12

(d)   -4 ∈ Ζ

This is a proposition and the truth value is TRUE.

-4 ∈ Ζ  is read as ( minus four is an integer  (∈)  of Z )

Yes, this is a proposition and its Truth value is TRUE , since  minus four is an integer  (∈)  of Z

6 0
3 years ago
A line goes through the point (6,-2) and has a slope of
Lilit [14]

Answer: a = 3

Step-by-step explanation: when you multiply 6 by -3 you get -18 and if you add 16 you get -2

so the slope is -3 and the y-intercept is 16

so a*-3 + 16 = 7

by subtracting 16 on both sides you get

-3a = -9

and to get a by itself you divide -3 on both sides

a = -9/-3

a= 9/3

a = 3

5 0
3 years ago
an architect is building a seminar hall to seat 1450 people. he wants the seating to be such that the number of rows and the num
Lady_Fox [76]
The seats must be arranged in a 38 by 39 arrangement to have the minimum amount of seats used.
You can find this by finding the square root of 1450, which is 38.0788655293.

5 0
3 years ago
If a triangle has sides of 8, 8, and 6, then it is classified as an _____ triangle.
ohaa [14]

Answer:

right

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Terry drove 228 miles in 6 hours at a constant speed. How long would it take him to drive 285 miles at the same speed ?
Hunter-Best [27]
First divide 228 miles by 6 hours and u get 38 miles per hour
next, divide 285 miles by 38 miles and u get 15/2 or 7.5 hours
the answer is 7 and a half hours
hope this helps! good luck!
8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the measure of the third angle
    11·1 answer
  • Find the x and the area of the shape perimeter is 64.5​
    7·1 answer
  • What is 3a2 + a2 added to a + 6?
    5·2 answers
  • Please help... I have no clue
    5·1 answer
  • Tell whether (2,6) is a solution of y = 3x. (show your work)
    7·1 answer
  • Solve the equation x/5 -9=4
    10·2 answers
  • What is the future value of a loan of $2800 to be repaid in 8 months at an annual interest of 9%?
    12·1 answer
  • Simplify (write in the smallest terms) the following expressions using the laws of exponents and distribution.:))) I WILL GIVE B
    10·1 answer
  • WILL IVE BRAINLEIST FOR FIRST AWNSER For Emma's birthday party, her dad bought a piñata to fill with small toys. The table shows
    9·1 answer
  • Write 2 equivalent expressions for each and find the total price ​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!