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3 years ago

Steps to how to solve this !

Mathematics

1 answer:

tiny-mole [99]3 years ago

7 0

W is 38 to form a right angle
Z is 29 for the same reason
Y is 52 because of vertical angles

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The coordinate grid shows W,X,Y,Z <br><br> which point is best represented by ordered pair (-3,2.5)

vlabodo [156]

Answer:

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Step-by-step explanation:

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3 years ago

A car travels 120 miles in 3 hours at a constant speed. How long will it take for the car to travel 200 miles?

weqwewe [10]

Answer:

Step-by-step explanation:

To calculate the travel speed per hour, divide 120 by 3. 120/3 = 40 mph. Now to calculate the time it will take to travel 200 miles, divided 200 by 40 mph. 200/40 = 5

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3 years ago

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7 1/6 times 3/4 is??

Paladinen [302]

Answer:

$7\frac{1}{8}$

Step-by-step explanation:

Multiply across.

$(7\frac{1}{6})(\frac{3}{4})=7\frac{3}{24}$

Then Simplify.

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3 years ago

I’ll mark Brainiest?

Usimov [2.4K]

The answer is D. Group =2

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3 years ago

Sin(60-theta)sin(60+theta)

ehidna [41]

Step-by-step explanation:

$\sin(60 - \theta) \sin(60 + \theta) \\ = \{ \sin(60) \cos( \theta) - \sin( \theta) \cos(60) \} \{ \sin(60) \cos( \theta) + \cos(60) \sin( \theta) \} \\ = \{ \frac{ \sqrt{3} }{2} \cos( \theta) - \frac{1}{2} \sin( \theta) \} \{ \frac{ \sqrt{3} }{2} \cos( \theta) + \frac{1}{2} \sin( \theta) \} \\ \\$

from difference of two squares:

${ \boxed{(a - b)(a + b) = ( {a}^{2} - {b}^{2} ) }}$

therefore:

$= \{ {( \frac{ \sqrt{3} }{2}) }^{2} { \cos }^{2} \theta \} - \{ {( \frac{ \sqrt{3} }{2} )}^{2} { \sin }^{2} \theta \} \\ \\ = \frac{3}{4} { \cos }^{2} \theta - \frac{3}{4} { \sin}^{2} \theta$

factorise out ¾ :

$= \frac{3}{4} ( { \cos }^{2} \theta - { \sin}^{2} \theta) \\ \\ = { \boxed{ \frac{3}{4} \cos(2 \theta) }}$

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3 years ago

Read 2 more answers