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Afina-wow [57]
3 years ago
12

I get pretty confused and I have a huge exam next week please help.

Mathematics
1 answer:
Alex Ar [27]3 years ago
7 0
From the angle bisector theorem, we know
\frac{9}{x}=\frac{21}{14}
\rightarrow9*14=21x
\rightarrow 21x=126
\rightarrow x=6
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Which ordered pairs is a solution to -5x + 3y > 12?
maks197457 [2]

Answer:

(-5,5)

Step-by-step explanation:

if you replace x and y with the numbers, the answer will be true.

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3 years ago
Why is water not used as a solvent in paper chromatography​
Anastaziya [24]

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Because the kind of compounfds that you try to determine using paper chromatography (organic compounds) are usually not soluble in water. Furthermore, water could react chemically with some of this compounds, because it's a very reactive molecule. You need organic solvents that are mostly inert.

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3 years ago
You buy a car for $25,000. It depreciates at the rate of 23% per year.
Juliette [100K]

The worth of the car in 10 years is $1,831.67 using an exponential equation approach.

What is an exponential equation?

An exponential equation is the one with exponents such X^3(the 3 is the exponent)

The exponential equation required here is the one where the future value would be lower than current value because the car reduces in value year-in-year-out.

FV=PV*(1-r)^N

FV=future worth of the car

PV=today's value=$25,000

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N=number of years=10

The fact that r is negative means the car is depreciating not appreciating.

FV=$25,000*(1-23%)^10

FV=$1,831.67

Find further explanation on exponential equation below in the link:

brainly.com/question/11832081

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7 0
2 years ago
X+5 divided by 3 is less than or equal to 2
hichkok12 [17]
\frac{x+5}{3}  \leq 2
times both sides by 3
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5 0
3 years ago
When comparing the functions which conclusion can be made
Nesterboy [21]

Answer:

Probably the one you have selected.

Step-by-step explanation:

This is a bad question because the domain of f(x) is not restricted, but the domain of its inverse is restricted to x >= 4. I would say you guessed correctly.

7 0
3 years ago
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