In ΔBCD, the measure of ∠D=90°, BD = 20, CB = 29, and DC = 21. What is the value of the cosine of ∠C to the nearest hundredth?

Mathematics

1 answer:

Romashka-Z-Leto [24]2 years ago

8 0

Step-by-step explanation:

This is what the triangle should look like, when you draw it.

As its a right-angle triangle, trigonometry was used.

Let theta represent the angle of cosine C

You might be interested in

What is .625 in fraction form? or what is half of 1 1/4

PSYCHO15rus [73]

5/8 is the answer to this question

5 0

3 years ago

Solve 15 ≥ -3x or 2/5x ≥ -2. <br><br> A.) {x | x ≤ -5}<br> B.) {x | x ≥ -5}<br> C.) {all reals}

Lapatulllka [165]

$15 \geq -3x\quad|:(-3)\qquad\vee\qquad \dfrac{2}{5}x \geq -2\quad|\cdot5\\\\\\
-5 \leq x\qquad\vee\qquad 2x \geq -10\quad|:2\\\\\\
-5 \leq x\qquad\vee\qquad x \geq -5\\\\\\x\geq -5\qquad\implies\qquad\boxed{\{x | x \geq -5\}}$

Answer B.

6 0

3 years ago

Read 2 more answers

What is the domain of the function f(x)=√6−2x?

Mumz [18]

Domain of f(x) = √6 - 2x is {x | -∞ < x ≤ 3}

8 0

3 years ago

Helpmeeejjrjjrjrjtktktktii

Artist 52 [7]

I would first convert the mixed fraction into an improper fraction. To put it lightly, the reciprocal is the numerator and denominator are switched. For this instance it would be 4/37.

7 0

3 years ago

3. Use the diagram 2 and 3 are ____ angles 1. complementary 2. vertical 3. right 4. supplementary

Vladimir79 [104]

2 and three are supplementary angles .

#4.

The answer is opposite angles .