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2 years ago

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den301095 [7]2 years ago

8 0

42? I think I’m not sure

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Xác định nhóm galoa của pt x^6 -3

zimovet [89]

Answer:

ummmmm nobody here speaks that language

6 0

2 years ago

PLEASE HELP I WILL GIVE BRIANLIEST 15 POINTS!!! What is the equation in slope-intercept form of the line that crosses the x-axis

harkovskaia [24]

Answer:

Choice D

Step-by-step explanation:

First we should find the slope of the equation, so since it's perpendicular to the other equation that means it's the opposite and the reciprocal of that slope. So the slope is $\frac{9}{4}$ .

Now we have to find the y-intercept. We already know the x-intercept, so we could use that to find the y-intercept. For that we need to know the slope and one ordered pair, which is (36,0). Then we plug into this formula $y=mx+b$ .

$y=mx+b\\0=\frac{9}{4}(36)+b\\0=81+b\\b=-81$

So now that we found the y-intercept we just have to put it all together....

$y=\frac{9}{4}x-81$

8 0

3 years ago

If mln, solve for x.<br> (3x+9)(x+21)

Lilit [14]

(3x+9)+(x+21)=90
4x+30=90
4x=60
60/4=15
X=15

4 0

2 years ago

Evaluate inverse functions <br><br> Find the following values f^-1(f(3.14)) <br> F(f(-7))

Margaret [11]

Answer:

1. 3.14

Step-by-step explanation:

If we have

$f {}^{ - 1} (f(x)$

That just equals

$x$

For example, consider function

$f(x) = 2 {}^{x}$

The inverse of that function is

$y = 2 {}^{x}$

$x = 2 {}^{y}$

$log_{2}(x) = log_{2}(2 {}^{y} )$

$log_{2}(x) = y$

So

$f {}^{ - 1} (x) = log_{2}(x)$

If we compose the function, f(x) into f^-1(x).

We get

$log_{2}(2 {}^{x}) = x$

That proof of that.

1. Here x=f^-1(3.14)and f(3.14) cancel out so the answer is 3.14

2. We first find f(-7) which is -12,

We then find f(-12)= 5 so the answer here is 5.

8 0

2 years ago

Solve the application problem.

scoundrel [369]

Answer:

0

Step-by-step explanation:

8 0

3 years ago