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Nana76 [90]
3 years ago
12

A couple wants to install a square mirror on their bathroom wall. The area of the square mirror is 720 square inches. To the nea

rest hundredth of an inch, what length of wood trim is needed to go around the entire mirror?PLZ ANSWER I NEED THIS IN LESS THAN 10 MINUTES
Mathematics
1 answer:
34kurt3 years ago
6 0

Answer:

26.83inches

Step-by-step explanation:

Area of the square mirror is expressed as A = L²

L is the side length of the square mirror

Given

Area = 720in²

Get the length

720 = L²

L = √720

L = 26.83

Hence the length of wood trim needed to go around the entire mirror is 26.83inches

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I dont know what I'm doing! could you help me​
photoshop1234 [79]

Answer:

c = 24.34

Step-by-step explanation:

Here, we can use the cosine rule

Generally, we have this as:

a^2 = b^2 + c^2 - 2bcCos A

12^2 = 14^2 + c^2 - 2(14)Cos 19

144 = 196 + c^2 - 26.5c

c^2 - 26.5c + 196-144 = 0

c^2 - 26.5c + 52 = 0

We can use the quadratic formula here

and that is;

{-(-26.5) ± √(-26.5)^2 -4(1)(52)}/2

(26.5 + 22.23)/2 or (26.5 - 22.23)/2

24.37 or 2.135

By approximation c = 24.34 will be correct

8 0
3 years ago
(5 – 3x)4 – 2<br><br> Please I need help. Show steps im so confused
RSB [31]

Answer:

6

Step-by-step explanation:

P (5-3) =2

E X

M 2 x 4 =8

D X

A X

S 8 - 2 =6

6 0
3 years ago
Drag each symbol and number to the correct location on the inequality. Not all symbols and numbers will be used. Sam initially i
galben [10]

Answer:

t \leq 18.67\ years

Step-by-step explanation:

we know that

The simple interest formula is equal to

A=P(1+rt)

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

t=?\ years\\ P=\$4,500\\ A=\$7,020\\r=0.03

The inequality that represented this situation is

P(1+rt) \leq A

substitute the values and solve for t

4,500(1+0.03t) \leq 7,020

(0.03t) \leq (7,020/4,500)-1

t \leq [(7,020/4,500)-1]/0.03

t \leq 18.67\ years

7 0
3 years ago
What are the answers
Shalnov [3]
Slope formula: 
y2-y1
-------
x2-x1
    48)
1-3       -2
----    = ----
-2-4     -6

So the slope of MN is 1/3
5 0
3 years ago
Read 2 more answers
Please helpppppppppppppppppppppppppppppppppppp
Pani-rosa [81]

Step-by-step explanation:

  • (2×10^8)(2×10^-2)
  • 4×10^8+(-2)
  • 4×10^6

<h3>stay safe healthy and happy.</h3>
6 0
3 years ago
Read 2 more answers
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