1) Use the rules of exponents to evaluate or simplify. Write without negative exponents.3*4^0 =

2) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
1 / 4^-2 =

Answers

Answer 1

Answer: $1)\n 3*4^0=3*1=3\n\n 2)\n a^{-b=((1)/(a))^b}}\n (1)/(4^(-2))=(1)/(((1)/(4))^2)=(1)/((1)/(16))=1*(16)/(1)=16$

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X + y = 155x - y = 9
Elimination method

(4, ? )

what number is the ?

Answers

The ? Is 11.

You add the equations to get rid of one variable, then you have 6x=24 then you divide both sides and you have x=4, then you substitute the given value of x and you are left with 5*4 - y = 9. And the solution or well possible solution is y = 11 which gives youuuuu. (x , y) = (4 , 11)

4 + y = 15....1
20 - y = 9.....2

....1*5
20 + 5y = 75....3

....3 - .....2
4y = 60
y = 15

the answer for (?) is 15
i’m not sure if this 100% correct but i’m trying my best to help you

A hummingbird is flying toward a large tree that has a radius of 6 feet. When it is 33 feet from the center of the tree, its lines of sight form two tangents. What is the measure of the arc on the tree that the hummingbird can see?

Answers

Answer:

Length of the arc = 5.25017 feet

Step-by-step explanation:

The line from the middle of the tree to the tip of the tangent lines is 33 ft and from the circumference of the tree its 27ft. One of the right angle triangles is picked and the angle is determined using SOHCAHTOA

Hence Tan X = 6/27

X = Tan-1 (6/27) = 12.52880770915o

Hence both sum of angles where tangent lines meet = 2 x 12.52880770915o = 25.05761541830o

Angle of the arc inside the circle = 50.115o

Length of the arc = 50.115/360 x (2x22/7 x 6) = 5.25017040025ft

-(-2)with an exsponet of 6 help plz

Answers

-(-2) is the same thing as saying 2 and 2^6 is 64 Enjoy!=)

-(-2) is the same thing as 2, and 2 raised to the sixth power is the same thing as 2 x 2 x 2 x 2 x 2 x 2. this equals 64

Simplify radical. Intermediate Algebra

Answers

180 ÷ 2 = 90; 90 ÷ 2 = 45 ; 45 ÷ 3 = 15 ; 15 ÷ 3 = 5 ; 5 ÷ 5 = 1 => 180 = (2^2) * (3^2) * 5 => $√(180) = 2*3 * √(5 )=6 √(5) ;$

In the same way we have $√(245)=7 √(5) ;$ and $√(320 )=8 √(5) ;$

Finally, $6 √(5)+7 √(5) - 8 √(5) = 13 √(5) - 8 √(5) =7 √(5).$