All categories

3 years ago

Cos X Y 12 X 16 20 Z 4 A) 3/4 B) 4/3 C)3/5 D) 5/4

Mathematics

1 answer:

yanalaym [24]3 years ago

5 0

Answer:

$\cos X = \frac{12}{20} \\ = \frac{3}{5}$

You might be interested in

Which polynomial correctly combines the like terms and expresses the given polynomial in standard form?

Lera25 [3.4K]

Answer:

The first option

Step-by-step explaination:

$9 {xy}^{3} - 4 {y}^{4} - 10 {x}^{2} {y}^{2} + {x}^{3} y + {3x}^{4} + {2x}^{2} {y}^{2} - 9 {y}^{4}$

$(- 4 {y}^{4} - 9 {y}^{4} ) + ( - 10 {x}^{2} {y}^{2} + {2x}^{2} {y}^{2}) + 9 {xy}^{3}+ {x}^{3} y + {3x}^{4}$

$- 13 {y}^{4} - 8 {x}^{2} {y}^{2} + 9 {xy}^{3} + x {}^{3} y + 3x {}^{4}$

$- 13 {y}^{4} + {3x}^{4} - 8 {x}^{2} {y}^{2} + {x}^{3} y + {9xy}^{3}$

7 0

3 years ago

What is the domain for each function below? Choose the correct inequality symbol from the drop down menu and fill in the blank w

erik [133]

Answer:

$x \le 3$

$x \ge 0$

Step-by-step explanation:

The functions, missing from the question are:

$f(x) = \sqrt{3 - x$

$f(x) = \sqrt{3 x$

Required

Determine the domain

To get the domain, means we want to get the possible values of x.

(a)

$f(x) = \sqrt{3 - x$

Equate 3 - x to 0

$3 - x = 0$

Solve for x

$-x = -3$

$x = 3$

From the calculated value of x above;

When x exceeds 3; f(x) = undefined

So: the domain is:

$x \le 3$

(b)

$f(x) = \sqrt{3x$

Equate 3x to 0

$3x = 0$

Solve for x

$x = 0$

From the calculated value of x above;

When x falls below 0; f(x) = undefined

So: the domain is:

$x \ge 0$

4 0

3 years ago

Plz help me plz!!!!!(

Gre4nikov [31]

A. 15 × 1 1/2= 15/1 × 3/2= 45/2= 2 2/5

b.15min +1extra minute=16min. × 15 students =240min so no not enough time

5 0

3 years ago

Simplify. rewrite the expression in the form 5^n<br><br>(5^-8) (5^-10)<br>

cluponka [151]

Answer:

5^-18 or 1/(5^18)

Step-by-step explanation:

(5^-8) (5^-10)

= 5^(-8 + -10)

= 5^-18

or 1/(5^18)

6 0

3 years ago

Mike observed that 75% of the students of a school liked skating. If 35 students of the school did not like skating, the number

galben [10]

Answer:

105

Step-by-step explanation:

35 is 25% of the students in the school so you could do 35 x 4 which is 140...

then you will take 35 and subtract them...

140 - 35 = 105

So 105 is 75%

8 0

3 years ago