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3 years ago

What is the value of the expression 4x+y2y−x when x = 2 and y = 4?

Mathematics

1 answer:

NeX [460]3 years ago

7 0

When x=2 and y=4,

4x+y2y-x
=4(2)+(4)(2)(4)-2
=38

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The population of bats in a large cave is 7000 and is growing exponentially at 14% per year. Write a function to represent the p

Evgen [1.6K]

Answer:

y=7000+14^t

Step-by-step explanation:

This equation shows that the original population of bats was 7000 and grows exponentially at a rate of 14% per year.

I put the graph below so you can see it.

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3 years ago

I WILL GIVE BRAINLIEST

VARVARA [1.3K]

Answer:

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Step-by-step explanation:

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3 years ago

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Angle measurement, help

IrinaVladis [17]

Answer:

...

Step-by-step explanation:

1.) if supplement then its equal to 90, so subtract from 90

2.) 90-72= 18, so the asnwer is 18

39+2x+1=90

40+2x=90

2x=50

x=25

3.) x-24+29=296

x+5=296

x=291

4.)vertical angles so congruent, 107

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84+4x=180

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3 years ago

At a high school, 18% of the students play football and 6% of the students

aliina [53]

Answer:D. 33.3%

Step-by-step explanation:

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3 years ago

Cos (x + π/ 3) + cos (x - π/ 3) = 1 Solve for "x" on the interval [0, 2pi)

kenny6666 [7]

$\bf cos\left( x+\frac{\pi }{3} \right)+cos\left( x-\frac{\pi }{3} \right)=1\\\\
-----------------------------\\\\\
[cos(x)cos\left( \frac{\pi }{3} \right)\underline{-sin(x)sin\left( \frac{\pi }{3} \right)}] 
+ [cos(x)cos\left( \frac{\pi }{3} \right)\underline{+sin(x)sin\left( \frac{\pi }{3} \right)}]=1
\\\\\\$

$\bf cos(x)cos\left( \frac{\pi }{3} \right)+cos(x)cos\left( \frac{\pi }{3} \right)=1\implies 2cos(x)cos\left( \frac{\pi }{3} \right)=1
\\\\\\
2cos(x)\cdot \cfrac{1}{2}=1\implies cos(x)=1\implies \measuredangle x=cos^{-1}(1)
\\\\\\
\measuredangle x = 
\begin{cases}
0\\
2\pi 
\end{cases}$

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4 years ago