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3 years ago

Jen simplified a radical expression. Her work is shown.

Mathematics

1 answer:

9966 [12]3 years ago

6 0

Answer:

im taking the same test lol

Step-by-step explanation:

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Happy Monday Everybody Free 100 points no joke

vlabodo [156]

Answer:

Thank you

Step-by-step explanation:

Have a great day :D

5 0

3 years ago

Read 2 more answers

Which would be the best method to use to solve the following equations? Explain your reasoning.

o-na [289]

A. square root property

$3x^2-192=0\\x^2-66=0\\x^2=66\\x= -\sqrt{66} or \sqrt{66}$

it has one value with x which is x^2 and it cn be easily solved without having to factorise, quadratic formula cant be used as it need ax^2+bx+c=0 format

B. factorising

$x^2-x-6=0\\x^2+2x-3x-6=0\\(x+2)(x-3)=0\\x+2=0 and x-3=0\\x= -2 \\x= 3$

i just felt like this was easier to factorise than the other 2 options left

C. Completing the square

$x^2-6x-7=0\\(x-3)^2=0\\x= -1\\x= 7$

same reason personal preference

D- Quadratic

$x^2-17x-7=0\\x=\frac{-(-17)+\sqrt{(-17)^2-4(1)(-7)} }{2(1)} \\x=\frac{-(-17)-\sqrt{(-17)^2-4(1)(-7)} }{2(1)}\\x=17.4\\x=-0.402$

the 17 kinda threw me off and i didnt wanna get on factorising or doing completing the square so quadratic formal

7 0

3 years ago

A low-wattage radio station can be heard only within a certain distance from the station. On the graph below, the circular regio

zmey [24]

For the answer to the question above,
My answer in which equation represents the boundary for the region where the station can be heard would be multiple choice letter D. (x + 6)^2 + (y + 1)^2 = 16
I hope my answer helped you solve your problem, Have a nice day!

5 0

3 years ago

Question 17 Multiple Choice Worth 1 points) (06.02 LC) Which of these is the algebraic expression for "5 times the sum of 2 and

Setler [38]

Answer:

D 5(2 + y)

Step-by-step explanation:

3 0

3 years ago

A cardboard of length 15cm and breadth 12cm is to be cut into squares of equal sizes with no paper left over. What is the length

Andrews [41]

9514 1404 393

Answer:

3 cm

Step-by-step explanation:

The largest possible square will have a dimension that is the greatest common factor of 12 and 15. That number is 3.

The largest square is 3 cm.

The paper will be cut into 5 squares lengthwise and 4 squares across.

5 0

3 years ago