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Juli2301 [7.4K]
4 years ago
9

Write 3x 3x 3x 3 x 3 using exponents

Mathematics
1 answer:
Ahat [919]4 years ago
5 0
3\cdot3\cdot3\cdot3\cdot3=3^5
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4x- (1/2)x-7 = 7(1/2)x-7)
yanalaym [24]
All real numbers are solutions.
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3 years ago
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A 8 ft tall tent standing next to a bird bath casts a 18 ft shadow. If the bird bath is 4 ft tall then how long is its shadow?​
a_sh-v [17]
9ft shadow

Set up a proportion with height/shadow
8/18=4/x, cross multiply
8x=72
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2 years ago
Khalid invested $9500 in a savings account with a yearly interest rate of 3% for 8 years. How much simple interest did he earn?
NemiM [27]
So simple interest, you don't compound anything, you will always add 3% from $9500 and it will not change. The equation will look like this:

9500*[1+(0.03*8)]
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3 years ago
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In an 18-meter race between a tortoise and a hare, the tortoise leaves 23 minutes before the hare. The hare, by running at an av
seropon [69]
We know that:
time=distance/speed
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x=0.08 m/min
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6 0
3 years ago
Solve for x in the equation X2-8x+41 = 0 -
djverab [1.8K]

Answer:

The value of x fro the given equation is ( 4 + 2 i ) , ( 4 - 2 i )

I.e option D  

Step-by-step explanation:

Given equation as :

x² - 8 x + 41 = 0

For quadratic equation  ax² + b x + c = 0

The value of x = \frac{-b\pm \sqrt{b^{2}-4\times a\times c}}{2\times a}

∴ For equation x² - 8 x + 41 = 0

Or,                x = \frac{8\pm \sqrt{-8^{2}-4\times 1\times 41}}{2\times 1}

Or,                x = \frac{8\pm \sqrt{-100}}{2}

Or,                x = \frac{8\pm 10i}{2}

∴                  x = ( 4 + 2 i ) , ( 4 - 2 i )

Hence The value of x fro the given equation is ( 4 + 2 i ) , ( 4 - 2 i )

I.e option D     Answer

7 0
4 years ago
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