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3 years ago

How do you solve this

Mathematics

1 answer:

poizon [28]3 years ago

3 0

where is the line CA going through

57 or 58 ish

go to the line on the protractor that has 0 at line CB

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Which statement best describes how to determine whether f(x) = 9- 4x4 is an odd function?

vitfil [10]

Answer:

Option C.

Step-by-step explanation:

Note: In the given function the power of x should be 2 instead of 4, otherwise all options are incorrect.

Consider the given function is

$f(x)=9-4x^2$

If $f(-x)=f(x)$ , then $f(x)$ is an even function.

If $f(-x)=-f(x)$ , then $f(x)$ is an odd function.

Now, substitute x=-x in the given function.

$f(-x)=9-4(-x)^2$

$f(-x)=9-4(x)^2$

$f(-x)=f(x)$

So, the given function not an odd function. It means it is an even function.

To check whether the given function is odd, we have to determine whether $9-4(-x)^2$ is equivalent to $-(9-4(x)^2)$ .

Therefore, the correct option is C.

6 0

3 years ago

Give the boundaries of the indicated value.<br> 29.4 miles<br> The boundaries are<br> miles.

sineoko [7]

Answer:

The boundaries for the observed value, 42.8 miles are 42.75 miles up to 42.85 miles.

Step-by-step explanation:

hope it helps you friend ☺️

6 0

3 years ago

In a right triangle, if tan x = 1/2 then what is cos x

NARA [144]

Answer:

2√5

cos x = -------------

Step-by-step explanation:

If tan x = 1/2 then what is cos x?

Recall that tan x is defined as the quotient sin x / cos x, so that in this case sin x / cos x = 1 / 2 = opp side / adjacent side. Also, recall that cos x = adj side / hypotenuse.

To determine cos x, we need to find the length of the hypotenuse. That, in turn, through use of the Pythagorean Theorem, is √(1^2+2^2), or √5.

Then cos x = adj side / hyp = 2/√5. Rationalizing the denominator, we get

2√5

cos x = -------------

5 0

3 years ago

Can someone help me with these answers please

andre [41]

since we were given the key ( how it should be sort out or used )

then we get all the numbers out which are:

21, 23, 30, 32, 32, 35, 43, 44, 46, 48, 49, 49, 50, 52, 52, 53, 55

then we go ahead to answer the questions:

a) Range = highest number minus Lowest number

55 - 21 = 34

b) 17 (by counting all individual ages ).

c) Median = the middle age

(but before that, we must arrange the ages either a cording to their sizes either from biggest to smallest (descending order) or from smallest to biggest (ascending order)

so we arrange in ascending order but the numbers are already arranged so we don't have to stress ourselves:

Median = 46 (the number in the middle ).

Hope you ace your tests, Good luck ✅.

6 0

2 years ago

Percent decreasebetween80 and 70

vagabundo [1.1K]

You basically do 80-70 as the numerator of a fraction which should equal 10 and then the denominater should be 80 so you then do 10 divided by 80 and multiply your answer by 100 Hope This Helps You

5 0

3 years ago

How do you solve this ​

How do you solve this