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3 years ago

What are the laws of exponents

Mathematics

2 answers:

Kitty [74]3 years ago

4 0

Answer:

One rule to remember that everyone forgets is, multiply the base number as many times as what the exponent is. So for example, 3² is not 3 x 2 = 6, it's 3 x 3 = 9. Hope that makes sense! :)

Step-by-step explanation:

mafiozo [28]3 years ago

3 0

The exponent of a number says how many times to use the number in multiplication.

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I can't find the answer for 46.3 divided by 1.5 Help!

Olenka [21]

46.3/1.5 = 30.87 or 1.5/46.3 = 0.034
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2 years ago

A population grows with an annual growth rate of 16.5 % per year. (a) what is the monthly growth rate

Shtirlitz [24]

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2 years ago

Find the area of the shaded region.

miv72 [106K]

Answer:

The answer would be 27π

Step-by-step explanation:

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2 years ago

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Solve the system of equations by substitution. 3/8 x + 1/3 y =17/24 and <br> x + 7y = 8

goblinko [34]

$\left \{ {{ \frac{3}{8}x+ \frac{1}{3}y = \frac{17}{14} } \atop {x+7y=8}} \right.$

To solve this system by substitution, first isolate x in the second equation.

$x+7y=8$
$x+7y-7y=8-7y$
$x=8-7y$

Now, plug this expression ( $8-7y$ ) for x in the top equation to solve for y.

$\frac{3}{8} (8-7y)+ \frac{1}{3} y= \frac{17}{14}$
$3- \frac{21}{8} y+ \frac{1}{3} y= \frac{17}{24}$
$72-63y+8y=17$
$72-55y=17$
$-55y=17-72$
$-55y=-55$
$y=1$

Now that you have y, plug it into the second equation and solve for x.

$x+7y=8$
$x+7(1)=8$
$x+7=8$
$x=1$

Last step is to plug your x- and y-values in to both equations to check your work.

$\frac{3}{8} (1)+ \frac{1}{3} y= \frac{17}{24}$

$\frac{3}{8} * \frac{3}{3} = \frac{9}{24} ; \frac{1}{3} * \frac{8}{8} = \frac{8}{24}$

$\frac{9}{24} + \frac{8}{24} = \frac{17}{24}$ <--True

$1+7(1)=8$
$1+7=8$ <--True

Answer:
$x=1 \\ y=1$

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3 years ago

Find the area of the following circle.<br> r=9 yd.<br> Area =<br> square yards.

Katen [24]

81pie square yards, the formula of area of circle is pie•r cubed,

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2 years ago

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