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nikdorinn [45]
2 years ago
14

Help me my grade depends on this

Mathematics
2 answers:
taurus [48]2 years ago
3 0

Answer:

If it’s asking what it is before the tax, it’s just $25.20.  With the tax, it’s $26.46

Step-by-step explanation:

mylen [45]2 years ago
3 0

Answer:

24

Step-by-step explanation:

b + b * 5% = 25.20

b + b * 0.05 = 25.20

b*(1 + 0.05) = 25.20

1.05 * b = 25.20

so

b = 25.20/1.05 = 24

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2x^3/3y equivalent expressions
ELEN [110]
ت &:$:$$:٧:٧٣٧٣٨٧٣(:(نيjdjsisvshsisbsushvzhdd
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2 years ago
To the nearest tenth of a second, how much time would it take the penny to hit the ground?
anzhelika [568]
Your answer is 0.7 seconds
8 0
3 years ago
Read 2 more answers
A car can travel 480 miles on a full tank of petrol. The tank holds 60 litres. A driver fills the tank and sets off on a journey
strojnjashka [21]

Answer:

After travelling 360 miles, 15 litres of petrol will be left.

Step-by-step explanation:

If a car can travel 480 miles with a full tank of 60 liters of petrol, it could be said that each liter of petrol allows to travel 8 miles (480/60 = 8). Therefore, since the driver has driven his car for 360 miles, his tank has spent 45 liters of petrol (360/8 = 45). In conclusion, given that the tank has a capacity of 60 liters and that it was full at the time of departure, having spent 45 liters, 15 liters remain in the tank.

7 0
3 years ago
PLs help me im stuck.....
Darya [45]
The answer is 20 I think so
5 0
3 years ago
Use the method in the Example to find the square roots of 1 + √3i
kiruha [24]

Answer:

\sqrt{1 + \sqrt{3} i}=\pm (1.58+i 0.548)

Step-by-step explanation:

Given

z = 1 + √3 i

Let \sqrt{1+\sqrt(3) i}=p+iq

Squaring both sides

1+\sqrt(3) i=p^2-q^2+2ipq

Comparing real and imaginary part

Re(LHS)=Re(RHS)

1=p^2-q^2...........................(1)

comparing Im(LHS)=Im(RHS)

√3=2pq

q=\frac{\sqrt{3}}{2p}

Substitute q in equation (1)

1=p^2-(\frac{\sqrt{3}}{2p})^2

p^4-p^2-0.75=0

Let x=p^2

x^2-x-0.75=0

x=\dfrac{1\pm \sqrt{1^2+4\times 0.75}}{2}

x=\frac{1\pm 4}{2}

we take only Positive value because p^2=x

x=2.5  

p^2=2.5

thus p=\pm 1.58

q=\pm 0.548

thus,

\sqrt{1 + \sqrt{3} i}=\pm (1.58+i 0.548)

5 0
3 years ago
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