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Assoli18 [71]
3 years ago
5

A 1 ​ =7 and a_n=a_{n-1}+4a n ​ =a n−1 ​ +4

Mathematics
1 answer:
user100 [1]3 years ago
3 0

Answer:

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Step-by-step explanation:

potanginaaaa

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5^0×2^1 help me please
tankabanditka [31]
Starting with 5^0 (since in PEMDAS, we have parenthesis, exponents, multiplication, division, addition, and subtraction, and exponents come before multiplication), we know that anything to the power of 0 equals 1. Therefore, 5^0=1. Next, for 2^1, anything to the power of 1 means it's that number, so 2^1=2. Note that for 2^3 (and for most exponents), however, it's 2 multiplied by itself 3 times, or 2*2*2=8. Since 5^0=1 and 2^1=2, 5^0*2^1=1*2=2

Feel free to ask with further questions!
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4 years ago
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For number one I would recommend using an app called math papa it works really well with algebra and etc
7 0
3 years ago
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A gardener wants to fence a circular garden of diameter 21 m. Find the length of the rope he needs to purchase, if he makes 2 ro
djyliett [7]

Answer:

a). total length of rope=132 m

b). total cost of the rope=$528

Step-by-step explanation:

Step 1

To get the total length of rope needed to cover the circular garden twice, we express this as;

P=πD

where;

P=perimeter

π=pi

D=diameter

In our case;

π=22/7

D=21 m

replacing;

P=(22/7)×21=66 m

2×P=2×66=132 m

total length of rope=132 m

Step 2

The expression to calculate the total cost can be written as;

total cost=cost per meter length×total length of rope

where;

cost per meter=$4

total length of rope=132 m

replacing;

total cost=4×132=$528

total cost of the rope=$528

7 0
3 years ago
Question
KiRa [710]

Step-by-step explanation:

This problem bothers on the density of substances

Given data

Mass of substance m= 16kg

Volume of substance v = 2L

the equation that relates the volume. V. to the mass, m is the expression for density

ρ= mass/volume

Substituting our given data

ρ= 16/2= 8kg/L

Using the density calculated above we can get the volume liters, of 128kg of liquid

8= 128/v

v=128/8

v= 16L

The volume is 16L

The density of a substance is expressed as the mass per unit volume

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3 years ago
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Natasha_Volkova [10]
I have this homework too I need help
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3 years ago
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