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4 years ago

How to multiply numbers with exponets and different bases

1 answer:

5 0

When the bases are diffenrent and the exponents of a and b are the same, we can multiply a and b first:
a n ⋅ b n = (a ⋅ b) n
Example:
32 ⋅ 42 = (3⋅4)2 = 122 = 12⋅12 = 144

When the bases and the exponents are different we have to calculate each exponent and then multiply:
a n ⋅ b m
Example:
32 ⋅ 43 = 9 ⋅ 64 = 576

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6) when f(x) = 2x - 4<br> f(9) =<br> f(-3) =

inessss [21]

Answer:

its f(-3)

Step-by-step explanation:

you divide 2x from both sides

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3 years ago

PLEASE HELP IVE BEEN WAITING FOR 3 HOURS AND NO ANSWER

aleksandrvk [35]

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3 years ago

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Find the area of the semicircle. Round your answer to the nearest hundredth.

sergejj [24]

Answer:226.195

Step-by-step explanation:

1/2(πr2 ), where r is the radius. The value of π is 3.14

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3 years ago

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A line that passes through the points (–4, 10) and (–1, 5) can be represented by the equation y = y equals negative StartFractio

Natali5045456 [20]

Answer:

y=-\frac{5}{3} x+\frac{10}{3} or what is the same: $5x+3y=10$

Step-by-step explanation:

First we find the slope of the line that goes through the points (-4,10) and (-1,5) using the slope formula: $slope=\frac{10-5}{-4-(-1)} =\frac{5}{-3} =-\frac{5}{3}$

Now we use this slope in the general form of the slope- y_intercept of a line:

$y=-\frac{5}{3} x+b$

We can determine the parameter "b" by requesting the condition that the line has to go through the given points, and we can use one of them to solve for "b" (for example requesting that the point (-1,5) is on the line:

$y=-\frac{5}{3} x+b\\5=-\frac{5}{3} (-1)+b\\5=\frac{5}{3}+b\\5-\frac{5}{3}=b\\b=\frac{10}{3}$

Therefore, the equation of the line in slope y_intercept form is:

$y=-\frac{5}{3} x+\frac{10}{3}$

Notice that this equation can also be written in an equivalent form by multiplying both sides of the equal sign by "3", which allows us to write it without denominators:

$y=-\frac{5}{3} x+\frac{10}{3}\\3*y=(-\frac{5}{3} x+\frac{10}{3})*3\\3y=-5x+10\\5x+3y=10$

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4 years ago

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Solve the following equation:2x + 4 = 8

Neporo4naja [7]

You have the following function:

2x + 4 = 8

in order to solve the prvious equation for x, as follow:

2x + 4 = 8 subtract 4 both sides

2x = 8 - 4

2x = 4 divide by 2 both sides

x = 4/2

x = 2

Hence, the solution for x is 2

8 0

1 year ago