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3 years ago

Find the value of sec 19 degrees using your calculator also what does 'sec' mean?

2 answers:

7 0

To the nearest thousandth, it is 0.058.
The secant function is the reciprocal of the cosine function, which is the x-coordinate of the point where the terminal side of an angle intersects the unit circle.

DedPeter [7]3 years ago

4 0

Sec is also known as 1/cos.
Use the calculator to find 1/cos19

You might be interested in

What is 3/4 + 2/4

Rashid [163]

3/4=2/4=5/4
5 divided by 4 or 5/4= 1 1/4
6 1/4+5=6 1/4

hope that helps. It wasn't very clear. so those are the questions I got out of that and those are the answers. Again hope this helps

4 0

3 years ago

Kiran and Mai are trying to figure out if this equation is an identity, what do you think

ValentinkaMS [17]

Expanding the left side of the equation, it is found that since both sides are equal, yes, it is an identity.

An equality represents an identity if both sides are equal.

In this problem:

$(a - b)^4 = a^4 - 4a^3b + 6a^2b^2 - 4ab^3 + b^4$

Expanding the left side:

$(a - b)^2(a - b)^2 = a^4 - 4a^3b + 6a^2b^2 + 4ab^3 + b^4$

$(a^2 - 2ab + b^2)(a^2 - 2ab + b^2) = a^4 - 4a^3b + 6a^2b^2 - 4ab^3 + b^4$

$a^4 - 4a^3b + + 6a^2b^2 - 4ab^3 + b^4 = a^4 - 4a^3b + 6a^2b^2 - 4ab^3 + b^4$

Since both sides are equal, yes, it is an identity.

A similar problem is given at brainly.com/question/24866308

7 0

2 years ago

9x + 4y < 8 - 3x – 7y > 5 Is (1, -2) a solution of the system?

xz_007 [3.2K]

Answer:

yes

Step-by-step explanation:

9 - 8 < 8

1 < 8 yes

-3 + 14 > 5

11> 5 yes

6 0

3 years ago

What are ALL the true statements.

ale4655 [162]

Answer:

C, E, F

Step-by-step explanation:

A is false because dilations can not only increase the length of line segments, but also decrease the length of line segments.

B is a true statement.

C is true because when angles undergo dilations, their "size" does not change.

D is false because dilations do not increase the measures of angles.

E is false because a triangle that underwent a dilation becomes similar, not congruent.

F is true because of E's reasoning.

8 0

3 years ago

Read 2 more answers

A bicyclist rides 16 miles in 144 minutes. If she continues at this speed, how long will it take her to travel 36 miles? 576 min

Leni [432]

Answer: 324 minutes
Steps:
16 miles equals to 144 minutes
36 miles equals to x minutes

So first divide 144/16 which equals to 9
Then multiply 36×9 which equals to 324 minutes

Hope this helps ʕ•ᴥ•ʔ

5 0

3 years ago