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ladessa [460]
3 years ago
11

PLZ HELP ME

Mathematics
1 answer:
Alchen [17]3 years ago
3 0

Answer:

The answer is...

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A useful rule of thumb called the "rule of 70" states that if something grows at a constant rate of z percent per year, it doubl
vesna_86 [32]
<span>The answer is b. (70/z). If I put $100 into a savings account and the annual growth rate is 10%, the 70/10%= 7 years that the initial $100 would take to double.</span>
4 0
4 years ago
Describe the nature of the roots for this equation.<br> 3x^2+x-5= 0
m_a_m_a [10]

Answer:

<h2>This equation has no natural roots.</h2>

Step-by-step explanation:

3x^2+x-5=0\\\\\text{Use the quadratic formula for}\ ax^2+bx+c=0\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\text{For the given equation:}\\\\a=3,\ b=1,\ c=-5\\\\b^2-4ac=1^2-4(3)(-5)=1+60=61\\\\x=\dfrac{-1\pm\sqrt{61}}{(2)(3)}=\dfrac{-1\pm\sqrt{61}}{6}\notin\mathbb{N}

4 0
3 years ago
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Convert 37.45 to a fraction
Art [367]

Answer:

37   9/20

Step-by-step explanation:

5 0
3 years ago
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Can someone SMART actually help me
lisov135 [29]
The answer is 196/3 pi in^3. All you have to do is multiply 7x7, then you have to multiply that by 1/3 and 4, and you get 65.333333333. Then, you have to turn it into a fraction. You have to multiply 65 by 3, then add one, and you get 196/3 pi in^3.
7 0
4 years ago
Multiply. Write the result in scientific notation.1.4 • 10^1)(8 • 10^4)
notsponge [240]

Answer:

1,12×10^6

Step-by-step explanation:

7 0
3 years ago
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