MATHEMATICS HIGH SCHOOL

Find the zeros in simplest radical form:
   y=1/2x^2-4

Answers

Answer 1
Answer: y= (1)/(2)x^2-4\n \n y =0 \n \n(1)/(2)x^2-4 =0 \ \ / \cdot 2\n \nx^2-8=0 \n \n(x-√(8))(x+√(8))=0 \n \n x-√(8)= \ \ or \ \ x+√(8) = 0 \n \nx=√(8) \ \ or \ \ x=-√(8) \n \nx=√(4\cdot 2) \ \ or \ \ x= -√(4\cdot 2)\n \n x=2√(2) \ \ or \ \ x=-2√(2)
Answer 2
Answer: y= (1)/(2) x^2-4\n\ny=0\ \ \ \Leftrightarrow\ \ \ (1)/(2) x^2-4=0\ /\cdot2\ \ \ \Leftrightarrow\ \ \ x^2-8=0\n\nx^2-(2 √(2) )^2=0\ \ \ \Leftrightarrow\ \ \ (x-2 √(2) )(x+2 √(2) )=0\n\nx-2 √(2) =0\ \ \ \ \ \ \ \ or\ \ \ \ \ \ \ \ \ x+2 √(2)=0\n\nx=2 √(2)\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x=-2 \sqrt{2

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Is sec (11 pi/6) equal to (2 sqrt 3/3)?

Answers

sec (11 \pi )/(6)= (1)/(cos (11 \pi )/(6) )
Than:cos (11 \pi )/(6)= ( √(3) )/(2)
(1)/( ( √(3) )/(2) ) = (2)/( √(3) ) = (2 √(3) )/(3)
Answer:Yes, it is equal.
Yeap. sec (11pi/6) = 1/cos(11pi/6), verifying by calculator, you will get 1.1547, which is the value of 2 sqrt3/3

C=5(y-8) solve for y

Answers

Answer:

The steps to do this :

c = 5(y - 8)

c = 5y - 40

c + 40 = 5y

y = (c + 40)/(5)
steps:
1. distribute 5 to y and 8 so you get c= 5y-40
2. subtract 40 over (c-40=5y)
3. finally divide by 5, getting you c-8=y :))

Relationship B has a greater rate than Relationship A. This graph represents Relationship A.Which equations could represent Relationship B?

Select each correct answer.


A.y = 1.4x

B.y=12x

C.y = 2.2x

D.y = 3x

Answers

I think it’s C: 2.2x (I’m so sorry if I’m wrong)

Which of the following expressions has a coefficient of 10 and a constant of 5?10 + 5.3
10 - 5
10x + 5
10 + 5

Answers

We have that

From the expressions

  • 10 + 5.3
  • 10 - 5
  • 10x + 5
  • 10 + 5

The correct expression is

  • 10x + 5
  • Option C

From the question we are told

Which of the following expressions has a coefficient of 10 and a constant of 5?

  • 10 + 5.3
  • 10 - 5
  • 10x + 5
  • 10 + 5

Generally

We Know That the coefficient of an expression precedes the main variable of the expression

While

The Constant is a Number that stands alone

Therefore

From the expressions

  • 10 + 5.3
  • 10 - 5
  • 10x + 5
  • 10 + 5

The correct expression is

  • 10x + 5
  • Option C

For more information on this visit

brainly.com/question/23366835
10x + 5 is the answer.

What is the answer 3-5+3-6+7-23+67=?

Answers

3-5+3-6+7-23+67=

(3-5)+(3-6)+(7-23)+67=

(-2)+(-3)+(-16)+67=

(-21)+67=

46

{\boxed{\sf\ Answer:\ 46}
the answer to this question  is 46

which fraction is halfway between 1/2 and 5/6? A. 2/3 B. 4/3 C.3/5 D.7/12 And another question Arrange these numbers from least to greatest: -3/7, -5/6, -3/5, and -7/9 ?

Answers

1st Question:

1/6, 2/6, 3/6 = 1/2, 4/6, 5/6, 6/6.

Halfway between 1/2 and 5/6 is 4/6 = 2/3.

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2nd Question: Could've been worked out on a calculator.

-5/6, -7/9, -3/5, -3/7
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