Ask question

Ask question

All categories

4 years ago

11

8/3 × (−2 1/2) = ?Thanks!

2 answers:

olga2289 [7]4 years ago

8 0

Answer: It equals -8/3

Veronika [31]4 years ago

4 0

Answer: -20/3

Step-by-step explanation:

You might be interested in

A point (x,y) in the xy-plane whose coordinates satisfy xy<0 lies in quadrant(s) ____ or ____ .

lubasha [3.4K]

The possible ordered pairs whose product will be negative (less than zero) are,

$(x,-y) \: or \: (-x,y)$

That is all these products will give us,

$- xy$

$-xy< 0$

The point must be in the second quadrant where x is negative and y is positive.

Or in the fourth quadrant, where y is negative and x is positive.

5 0

4 years ago

Evaluate the six trigonometric functions of the angle 0.

Arturiano [62]

Given:

Right triangle

To find:

The six trigonometric functions of θ

Solution:

Hypotenuse = 18

Adjacent side to θ = 10

Opposite side to θ = ?

Using Pythagoras theorem:

$\text {Hypotenuse}^2 = \text{adjacent}^2+\text{opposite}^2$

$18^2 =10^2+\text{opposite}^2$

$324=100+\text{opposite}^2$

Subtract 100 from both sides.

$224=\text{opposite}^2$

Taking square root on both sides.

$4\sqrt{14}=\text{opposite}$

Using trigonometric ratio formula:

$$\sin\theta =\frac{\text{opposite }}{\text{hypotenuse}}$

$$\sin\theta =\frac{4\sqrt{14} }{18}$

$$\csc\theta =\frac{\text{hypotenuse}}{\text{opposite }}$

$$\csc\theta =\frac{18}{4\sqrt{14} }$

$$\cos \theta=\frac{\text { adjacent side }}{\text { hypotenuse }}$

$$\cos \theta=\frac{10}{18}$

$$\sec \theta=\frac{\text { hypotenuse }}{\text { adjacent side }}$

$$\sec \theta=\frac{18 }{10}$

$$\tan \theta=\frac{\text { opposite side }}{\text { adjacent side }}$

$$\tan \theta=\frac{4\sqrt{14} }{10}$

$$\cot \theta=\frac{\text { adjacent side }}{\text { opposite side }}$

$$\cot \theta=\frac{10}{4\sqrt{14} }$

8 0

3 years ago

Use the following sequence to complete the sentence below.

OLga [1]

Answer:not sure what u talking about

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

PLEASE HELP!!!!!!!!!!

kobusy [5.1K]

73 feet per second

Steps-
Miles to cover- 50 miles = 50*5280 feet = 264,000 feet
Time it takes- 1 hour = 1*60*60 seconds = 3,600 seconds

So speed is- 264,000 feet per 3,600 seconds = 264,000 / 3,600 = 73.33 ft per second

4 0

3 years ago

If T=[23 -38]<br> [17 -6 ]<br> then what is –10(T)?<br> PLEASE HELP

andrew-mc [135]

Answer:

B

Step-by-step explanation:

Multiply each term by -10

8 0

3 years ago