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3 years ago

What is a frequency table

Mathematics

2 answers:

Verizon [17]3 years ago

6 0

Answer: its a method or organizing your info while displaying it

Step-by-step explanation:

stiv31 [10]3 years ago

4 0

Answer:

A frequency distribution is a list,table or graph that displays the frequency of various outcomes in a sample.hope this helps you .

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What is the value of x?

Charra [1.4K]

Answer:

The value of x

Step-by-step explanation:

Is -3 i think soooooo

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2 years ago

I need<br> Help on this one

elixir [45]

The answer is
X=7
Have a nice day <3

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2 years ago

Read 2 more answers

What is c in 6c + 3y = 18 if y is 2?

Natali [406]

Answer:

c = 2

Step-by-step explanation:

6c + 3y = 18

6c + 3(2) = 18

6c + 6 = 18

6c = 12

c = 2

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2 years ago

Read 2 more answers

A. Evaluate ∫20 tan 2x sec^2 2x dx using the substitution u = tan 2x.

irakobra [83]

Answer:

The integral is equal to $5\sec^2(2x)+C$ for an arbitrary constant C.

Step-by-step explanation:

a) If $u=\tan(2x)$ then $du=2\sec^2(2x)dx$ so the integral becomes $\int 20\tan(2x)\sec^2(2x)dx=\int 10\tan(2x) (2\sec^2(2x))dx=\int 10udu=\frac{u^2}{2}+C=10(\int udu)=10(\frac{u^2}{2}+C)=5\tan^2(2x)+C$ . (the constant of integration is actually 5C, but this doesn't affect the result when taking derivatives, so we still denote it by C)

b) In this case $u=\sec(2x)$ hence $du=2\tan(2x)\sec(2x)dx$ . We rewrite the integral as $\int 20\tan(2x)\sec^2(2x)dx=\int 10\sec(2x) (2\tan(2x)\sec(2x))dx=\int 10udu=5\frac{u^2}{2}+C=5\sec^2(2x)+C$ .

c) We use the trigonometric identity $\tan(2x)^2+1=\sec(2x)^2$ is part b). The value of the integral is $5\sec^2(2x)+C=5(\tan^2(2x)+1)+C=5\tan^2(2x)+5+C=5\tan^2(2x)+C$ . which coincides with part a)

Note that we just replaced 5+C by C. This is because we are asked for an indefinite integral. Each value of C defines a unique antiderivative, but we are not interested in specific values of C as this integral is the family of all antiderivatives. Part a) and b) don't coincide for specific values of C (they would if we were working with a definite integral), but they do represent the same family of functions.

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2 years ago

Give the y intercept <br><br>y=3/2x+3

morpeh [17]

Answer:

Y intercept: (0,3) or 3

Step-by-step explanation:

the b in y = mx + b is the y intercept.

3 0

2 years ago