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damaskus [11]
3 years ago
6

Determine an expression that represents: perimeter: area: 3x+8;5x+2

Mathematics
1 answer:
AfilCa [17]3 years ago
6 0

Answer:

........................

Step-by-step explanation:

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Pls Helpp!!! "Nancy currently has $50.75 in her bank account and plans on depositing $11.25 into the account each week. She plan
Savatey [412]

Answer:

Step-by-step explanation:

w = (197-50.75)/11.25 = 13

3 0
2 years ago
Identify the double displacement reaction.
Anit [1.1K]
A double replacement reaction occurs when the ionic parts of two ionic compounds are exchanged. 

Reaction 1 results in a product which is a single compound. No ionic parts are exchanged. 

Reaction 3 results in one compound being separated into its elemental parts. No ionic parts are exchanged. 

Reaction 4 has two reactants, but Pb is an element and not an ionic compound. No ionic parts are exchanged. 

Hence, the answer is Reaction 2. Both NaBr and Ca(OH)2 are ionic compounds. Br - is the anion in NaBr, and (OH)2 is also an anion. Ionic parts are exchanged. 
3 0
3 years ago
I need your help please​
Bess [88]

56m^2

see the steps from the pic

4 0
3 years ago
The diagram shows a logo​
Charra [1.4K]

Answer/Step-by-step explanation:

✔️Find EC using Cosine Rule:

EC² = DC² + DE² - 2*DC*DE*cos(D)

EC² = 27² + 14² - 2*27*14*cos(32)

EC² = 925 - 756*cos(32)

EC² = 283.875639

EC = √283.875639

EC = 16.85 cm

✔️Find the area of ∆DCE:

Area = ½*14*27*sin(32)

Area of ∆DCE = 100.15 cm²

✔️Since ∆DCE and ∆ABE are congruent, therefore,

Area of ∆ABE = 100.15 cm²

✔️Find the area of the sector:

Area of sector = 105/360*π*16.85²

Area = 260.16 cm² (nearest tenth)

✔️Therefore,

Area of the logo = 100.15 + 100.15 + 260.16 = 460.46 ≈ 460 cm² (to 2 S.F)

5 0
3 years ago
Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour. What is Nina's rate in mil
BabaBlast [244]
We know that 
3600 seconds = 1 hour
Then
3400 seconds = 3400/3600
                        = 17/18 hours
5280 feet = 1 mile
Then
63360 feet = 63360/5280 mile
                  = 12 mile
So
Distance covered by Nina in 17/18 hours = 12 mile
Then
Distance covered by Nina in 1 hour = 12/(17/18) miles
                                                         = 12.71 miles.
From the above deduction, we can conclude that the speed of Nina is 12.71 miles per hour.
Speed of Sophia is 10 miles per hour. So Nina is the girl that rides at a faster speed.
4 0
2 years ago
Read 2 more answers
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