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3 years ago

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Please help

1 answer:

Ludmilka [50]3 years ago

4 0

The table shown is graphed below

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Csc(x) - cot(x) forms an identity with which of the following?

Ksivusya [100]

Csc ( x ) - cot ( x ) = ( 1 / sin ( x) ) - ( cos (x) / sin (x) )
= ( 1 - cos (x) ) / sin (x)

then 1 - cos (x) = 2 sin^2 ( x/2 )
and sin x = 2sin( x/2)cos( x/2)

substitute it
= ( 1 - cos (x) ) / sin (x)
=2 sin^2 ( x/2 ) / 2sin( x/2)cos( x/2)

then simplify
= sin (x/2) / cos (x/2)
since sin/cos = tan

csc ( x ) - cot ( x ) = tan ( x/2)

6 0

3 years ago

Write 5 5/8 as a improper fraction<br> A. 33/8<br> B. 45/8<br> C. 40/8<br> D. 35/8

Vikentia [17]

Answer:

I believe this would be B

Step-by-step explanation:

The way I do improper fractions is called the 'boot'

It is where you take the whole number and the denominator and circle both of them so it kind of looks like a boot and you multiply those together.

So 5 * 8= 40 then you add your numerator to that which gets you 45, and you keep the denominator the same

So you end up with 45/8

Sorry if its a little confusing

Hope this helps :)

8 0

3 years ago

Read 2 more answers

Which graph shows the solution to the inequality -3x-7 <20?

Slav-nsk [51]

Answer:

Graphs..?

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A team of storm enthusiasts collected data to show the relationship between the time between seeing lightning and then hearing t

never [62]

Answer:

Proportionality constant = $\frac{1}{5}$

Step-by-step explanation:

From the graph attached,

Data set representing the relation between seeing lightning and the hearing thunder is,

{(15, 3), (25, 5), (35, 7), (45, 9)}

Since, Distance from lightening (d) ∝ Time between lightening and thunder (t)

d = kt

Here k = proportionality constant

k = $\frac{d}{t}$

From the data set one point is (15, 3).

k = $\frac{3}{15}$

k = $\frac{1}{5}$ miles per second

Therefore, proportionality constant is $\frac{1}{5}$ miles per second.

3 0

3 years ago

Point M (-3, 5) is translated using this rule. (x, y) ----> (x - 1, y) What are the coordinates of M'?

Nuetrik [128]

Answer:

The coordinates of point M' are $M'(x,y) = (-4, 5)$ .

Step-by-step explanation:

According to the statement, we have the following translation rule:

$M'(x,y) = M(x,y) + (-1, 0)$ (1)

Where:

$M(x,y)$ - Original point.

$M'(x,y)$ - Translated point.

$(-1, 0)$ - Translation vector.

If we know that $M(x,y) = (-3, 5)$ , then the coordinates of the point M' are:

$M'(x,y) = (-3,5) + (-1,0)$

$M'(x,y) = (-4, 5)$

The coordinates of point M' are $M'(x,y) = (-4, 5)$ .

5 0

3 years ago