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PIT_PIT [208]
3 years ago
10

What is 8x to the power 3 over 6x to the power 5

Mathematics
1 answer:
bulgar [2K]3 years ago
3 0

In this question, you're simplifying the "fraction".

<em>Simplify:</em>

8x² / 6x^5

<em>First, simplify the 8 and the 6 by dividing by 2</em>

4x² / 3x^5

<em>Now simplify the exponents:</em>

The exponents is equivalent to: x² - x^5

x² - x^5 = -x²

Since it's a negative, it would stay in the bottom of the fraction, or the denominator.

4 / 3x²

Answer:

4 / 3x²

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Let sin A= -3/5 with 270°&lt; A&lt; 360°. Find the following.<br> sin A/2
GREYUIT [131]

Answer:

1/sqrt10

Step-by-step explanation:

1) Find out cosA using formula (cosA)^2+(sinA)^2=1

The module of cosA= sqrt (1- (-3/5)^2)= sqrt 16/25=4/5

So cosA=-4/5 or cosA=4/5.

Due to the condition 270degrees< A<360 degrees, 0<cosA<1 that's why cosA=4/5.

2) Find sinA/2 using a formula cosA= 1-2sinA/2*sinA/2 where cosA=4/5.

(sinA/2)^2= 0.1

sinA= sqrt 0.1= 1/ sqrt10 or sinA= - sqrt 0.1= -1/sqrt10

But 270°< A< 360°, then 270/2°<A/2<360/2°

135°<A/2<180°, so sinA/2 must be positive and the only correct answer is

sin A/2= 1/sqrt10

6 0
3 years ago
Which is the equation in slope intercept form for the line that passes through (-3,3) and is parallel to 3x + y= 7?
Helga [31]

Answer: B

See how I get

3 0
3 years ago
Read 2 more answers
What is the y-intercept of y = 5?
Vlada [557]

Answer&Step-by-step explanation:

In the equation of a straight line (when the equation is written as "y = mx + b"), the slope is the number "m" that is multiplied on the x, and "b" is the y-intercept (that is, the point where the line crosses the vertical y-axis). This useful form of the line equation is sensibly named the "slope-intercept form".

You can see also in the picture i post

5 0
3 years ago
What is the temperature increase in degrees Fahrenheit that is equivalent to a temperature increase of 10 degrees Celsius?
bogdanovich [222]

Answer:

18 degrees Fahrenheit

Step-by-step explanation:

7 0
3 years ago
Use the net to find the surface area of the square pyramid.
damaskus [11]

Answer:

The answer is B

Step-by-step explanation:

S.A of pyramid = base area × 4(area of triangle)

base area = (24×24)in

= 576in²

area of triangle = (1/2)×24×12

= 144in²

S.A = 576 + 4(144)

= 1152in²

5 0
3 years ago
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