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3 years ago

7

This is the question Below.

1 answer:

Digiron [165]3 years ago

4 0

Answer:

5

Step-by-step explanation:

5

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Help with this I don't know how to solve please!

WITCHER [35]

Answer:

sin∅ = 0.7311

Step-by-step explanation:

Pythagorean Theorem: a² + b² = c²

sin∅ = opposite/hypotenuse

Step 1: Find our hypotenuse

14² + 15² = c²

c = √421

Step 2: Find sin∅

sin∅ = 15/√421

sin∅ = 0.731055

6 0

4 years ago

In the diagram, AB is a tangent to the circle, centre O. D is the mid-point of the chord BC. Given that BAC = x, find COD in the

Westkost [7]

Answer:

$\angle COD =\frac{90+x}{2}$ in term of x

Step-by-step explanation:

Given that AB is tangent to a circle with center O and radius of OC=OB

D is the mid-point of the chord BC and D is 90

Here, Angle BAC = x.

From figure,

AC is a straight line.

we can write as

$\angle AOB+\angle BOD +\angle COD =180$

Since D is the mid-point of the chord BC

We know,

Angle opposite to sides are congruent

$\angle BOD=\angle COD$

So,

$\angle AOB+\angle BOD +\angle COD =180$

$\angle AOB +2\angle COD =180$

Now, In triangle AOB

$\angle ABO = 90$

Therefore,

$\angle AOB+\angle ABO+\angle BAO=180$

$\angle AOB=90-x$

Therefore.

$\angle AOB +2\angle COD =180$

$(90-x) +2\angle COD =180$

$-x+2\angle COD =90$

$2\angle COD =90+x$

$\angle COD =\frac{90+x}{2}$

Thus, $\angle COD =\frac{90+x}{2}$

6 0

4 years ago

A triangle with lengths 12 in, 14 in, and 16 in, what type of triangle is that?

iragen [17]

Answer:

scalene triangle

Picture:

(in attachment)

5 0

3 years ago

Which expressions are equivalent to 26+36?

maks197457 [2]

Answer:

Step-by-step explanation:

20 + 6 + 30 + 6

or

10(2) + 6(2) + 15(2)

or

25 + 37

7 0

3 years ago

Name the axis or quadrant in which the point (−1, −4) lies.

11Alexandr11 [23.1K]

The point (-1, -4) lies in the third quadrant

8 0

3 years ago