How do you simplify this expression? 9x(7-4) (2) +9 the 2 is an exponent

1 answer:

7 0

Here is a way you can write an exponent on the phone (x^2) just so you don’t have to explain the 2 is an exponent

i am confused on where the exponent is supposed to be so could you please rewrite it and i will help you solve it!

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Which pair of numbers is relatively prime?

tamaranim1 [39]

Not A.(17 is a common factor)
B. only common factor is 1
not C (7 is a common factor)
D. only common factor is 1

Both B and D are relatively prime.

3 0

3 years ago

1. Find the domain and range of the function<br> f(x)=√1-4x².

slamgirl [31]

$f(x) = \sqrt{1 - 4{ x}^{2} }$

$1 - 4x {}^{2} \geqslant 0$

$- \infty \: \: \: \: \: \: \: \: - 0.5 \: \: \: \: \: \: \: \: \: 0.5 \: \: \: \: \: \: \: \: \infty \\ - \: \: \: \: \: \: \: \: \: \: \: \: \: \:0 \: \: \: \: \: + \: \: \: \:0 \: \: \: \: \: -$

$domain \\ [ \: -0.5 \: , \: 0.5 \: ]$

$g(x) = 1 - 4x {}^{2} \\ g'(x) = - 8x \\ g'(x) = 0 \\ x = 0 \\ g(0) = 1 - 4(0) = 1 \\ maximum \: = 1$

$range \\ [ \: 0 \: , \: 1 \: ]$

5 0

2 years ago

Read 2 more answers

A boat is 400 feet away from one dock and 500 feet away from the another dock. the angle between the paths is 45°. what is the a

FinnZ [79.3K]

Answer:

The approximate distance between the docks is 357 feet

Step-by-step explanation:

Let the distance between docks be d.

This is the opposite side to 45° angle of triangle with other sides 400 ft and 500 ft.

Use the law of cosines to find the value of d:

$d = \sqrt{400^2+500^2-2*400*500*cos45} =357$ (rounded)

8 0

2 years ago

The ratio of the measures of the angles in a triangle is 5 to 2 to 3 what's the measure of one angle

aleksandr82 [10.1K]

5x + 2x + 3x = 180
10x = 180
x = 18

Angles are 36, 54, 90

4 0

3 years ago

Thank you very much ! Don't forget to show your work please.

SSSSS [86.1K]

10. angle APB = (1/2) arc AB
   108 = (1/2) arc AB
   multiply both sides by 2 to clear the fraction
   216 = arc AB

11. Area of regular Octagon s = 5 in
   A = (P * apothem)/2 => => If you divide the octagon into 8 triangles, the apothem is the perpendicular height of the triangle.
   A = (5 * 8 * 6)/2
   A = 120 in^2

   Area of regular Hexagon s = 5 in
   A = (5 * 6 * 4.3)/2
      A = 129 in^2

6 0

4 years ago