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3 years ago

How could you use the property to compute 2x8x2 mentally

2 answers:

8 0

First you need to kbkw you 2x tables then you multiply 2x8=16x2=32 the best way to do it is to break ot down in your head say that you know that 2x2=4 then you do 4x8=32

Llana [10]3 years ago

8 0

2×8=16×2=32 that is how you would get the answer

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PLEASE HELP ME

Vinil7 [7]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

• tanx = $\frac{sinx}{cosx}$

• sin²x + cos²x = 1 ⇒ sin²x = 1 - cos²x

Consider the left side

$\frac{tan^2x-sin^2x}{tan^2x}$

= $\frac{tan^2x}{tan^2x}$ - $\frac{sin^2x}{tan^2x}$

= 1 - cos²x

= sin²x = right side ⇒ verified

3 0

3 years ago

Find the slope given the 2 points: (6, 1) & (12, 11)

faust18 [17]

Answer: M = Five over three

4 0

3 years ago

Write the equation of the line that passes through the point(-6,12) and is parallel to the line y=8

Ugo [173]

Answer:

y = 12

Step-by-step explanation:

y = 8 is the equation of a horizontal line, parallel to the x- axis.

Thus a parallel line will also be horizontal.

The equation of a horizontal line is

y = c

where c is the y- coordinates of the points it passes through.

The line passes through (- 6, 12) with y- coordinate of 12, thus

y = 12 ← equation of parallel line

5 0

3 years ago

3x2 = 81<br> b. (x - 1)(x + 1)-9 = 5x<br> C. X - 9x + 10 = 32<br> d. 6x(x - 9) = 29

irakobra [83]

Answer:

a. 3x^2 = 81

x^2 = 27

$x = 3\sqrt{3} or -3\sqrt{3}$

Step-by-step explanation:

6 0

3 years ago

What’s the question mark

nikitadnepr [17]

Answer:

? = 30

Step-by-step explanation:

If the triangles are similar, then the only way I see this working is the sides measuring 63 and 54 are corresponding. The sides measuring 56 and 48 are corresponding. That leaves the sides measuring 35 and ? corresponding.

Set up a proportion.

63/54 = 35/?

63? = 54 * 35

63? = 1890

? = 30

8 0

3 years ago

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