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3 years ago

What is the difference in the graphs of f(x)=x^2 and f(-x)=(-x)^2?

Mathematics

1 answer:

drek231 [11]3 years ago

4 0

Answer:

B the graph is a refelction over the x axis

Step-by-step explanation:

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Does increase in sample size increases degrees of freedom for t-tests.

Elena-2011 [213]

Basically degrees of freedom are related to sample size (n-1). If the df increases, it also stands that the sample size is increasing; the graph of the t-distribution will have skinnier tails, pushing the critical value towards the mean.

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3 years ago

What's the reciprocal of 6⁄5

Alik [6]

Answer:

5/6

Step-by-step explanation:

the reciprocal of any fraction is the fraction flipped

8 0

4 years ago

Read 2 more answers

Which ratios of side lengths are equal to tan (a) ?

Eddi Din [679]

Answer:

$tan(\alpha)=\frac{opposite}{adjacent}$

Step-by-step explanation:

$tan(\alpha)=\frac{opposite}{adjacent}$

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2 years ago

Read 2 more answers

Triangle ABC and DEF are right triangles, as shown. Triangle ABC is similar to triangle DEF. which ratios are equal to sin C?

Dafna11 [192]

Answer:

First option and Fourth option.

Step-by-step explanation:

To solve this exercise you need to use the following Trigonometric Identity:

$sin\alpha=\frac{opposite}{hypotenuse}$

In this case you know that:

$\alpha =C$

Since triangle ABC is similar to triangle DEF:

$\angle C=\angle F$

Let's begin with the triangle ABC.

You can identify that:

$opposite=AB\\hypotenuse=AC$

Then, substituing values, you get:

$sinC=\frac{AB}{AC}$

In triangle DEF, you know that:

$opposite=DE\\hypotenuse=DF$

So, substituing values, you get:

$sinF=sinC=\frac{DE}{DF}$

4 0

3 years ago

A local baseball team about 75 shirts from the T-shirt company. The team was charged $6.25 for total shipping but received a $20

ollegr [7]

In order to solve this question
Make an equation
Let x be the cost of each T- shirt
75x+6.25-20=398.75
Simplify the equation
75x-13.75= 398.75
Get Rid of The Constant
75x-13.75+13.75= 398.75+13.75
75x=412.5
Make sure your Variable is equal to one
75x÷75= 412.5÷75
x= 5.5
The price of each shirt is $5.50

4 0

4 years ago