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natima [27]
3 years ago
8

15. Which best reflects a correct conversion of an equation in exponential form to logarithmic form?

Mathematics
1 answer:
kkurt [141]3 years ago
3 0

Answer:

5^x = 25

\log_525 = x

Step-by-step explanation:

Given

Convert from exponential to logarithm

(a) to (d)

Required

Which of the options is correct

Given that:

a^b = c --- Exponential

The logarithm form is:

b = \log_ac

From (a) to (d), only option (c) is correct.

Because it follows the above pattern

i.e.

5^x = 25 \to\to  a^b = c

a = 5   b = x   c = 25

b = \log_ac becomes

x = \log_525

or

\log_525 = x

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andrey2020 [161]

Answer:

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Step-by-step explanation:

3 0
4 years ago
A tv has height:width in ratio 9:16. In a scale drawing the height is 4.5cm. What would the width be?
ehidna [41]
\frac{4.5}{width}=\frac{9}{16}\\\\cross\ multiply.\\16\times4.5=9(width)\\72=9(width)\\\boxed{width=8\ cm}
6 0
3 years ago
What is the equation of the line that passes through the point (-4,4) and has a<br> slope of -3
Arte-miy333 [17]

Answer: y-4=-3(x+4) or y=-3x-8

Step-by-step explanation:

To find the equation of the line with a given point and slope, we can fill them into the point-slope formula. The point-slope formula is y-y₁=m(x-x₁).

y-4=-3(x-(-4))            [multiply]

y-4=-3(x+4)

Another equation could be slope-intercept form. It is y=mx+b.

y-4=-3(x+4)              [distribute]

y-4=-3x-12                [add both sides by 4]

y=-3x-8

Now, we know that the equation is y=-3x-8 or y-4=-3(x+4).

3 0
3 years ago
Use the numbered angles in the diagram to answer the question.
iogann1982 [59]
I’m pretty sure it would be angle 3 and angle 5 and then angle 1 and angle 7
6 0
3 years ago
Katie is buying souvenir.gifts for her big family back home. She wants to buy everyone either a key chain or a magnet. The magne
NikAS [45]
The total number of gifts = x+y.
The inequality is:
x+y  \geq 24

Key chains cost $1, Magnets $0.50
Total Cost = x + 0.5y
Inequality is:
x+0.5y  \leq 20

Without graphing you can solve system by using substitution:
y = 24 - x  \\  \\ x + 0.5(24-x) = 20   \\  \\ 0.5x +12 = 20  \\  \\ x = 16 \\  \\ y = 24-16 = 8

This is one solution where the maximum x value is given.
So the most keychains that can be purchased is 16. However, because magnets are cheaper, more can be purchased as long as cost remains under 20.

If you solve both inequalities for "y", you get the upper and lower bounds for how many magnets can be purchased given a quantity of keychains.

24-x  \leq y  \leq 40 -2x \\  \\ x \leq 16

This is complete solution which gives all possible combinations.
(Graph is Attached)

6 0
3 years ago
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