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Gelneren [198K]
1 year ago
8

If x= -2 and y=√12 then 2(3x³+ 2y²)=

Mathematics
1 answer:
Illusion [34]1 year ago
7 0

Answer:

Step-by-step explanation:

Begin by filling in x as -2 and y as √12 in the given expression:

2(3(-2)^3+2(\sqrt{12})^2).  Work inside the parenthesis first and deal with those exponents:

(-2)³ is the same as (-2)(-2)(-2) which is -8;

(√12)² is the same as (√12)(√12) which is √144 which is 12.

Filling those simplifications in:

2(3(-8)+2(12))=2(-24+24)=2(0)=0

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Evaluate the expression below.
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Answer:

<h2>A. 1</h2>

Step-by-step explanation:

Use:

|a| = a for a ≥ 0 or |a| = -a for a < 0

PEMDAS:

P Parentheses first

E Exponents

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

========================================

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3 years ago
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ser-zykov [4K]

Answer:

-1-5<2x+5-5<4-5

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3 years ago
Choose the point-slope form of the equation of this line.​
igor_vitrenko [27]

Answer:

y= -5x +7

Step-by-step explanation:

We can see points on the graph:

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The function in general form is:

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Let's find the slope and y-intercept as per identified points on the graph:

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Based on the found values of m and b, the given line is:

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4 0
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PLEASE SHOW FULL SOLUTIONS!!! WILL MARK BRAINLIEST!!! SHOW ALL STEPS!!! THANK YOU!!!
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9514 1404 393

Answer:

  a) BE = 5; DE = 6; EF = 4

  b) ∠EFC ≅ ∠DA.F ≅ ∠BDE  or  <em>b = e = f = i</em>

Step-by-step explanation:

Each short segment is the same length as the marked one it is parallel to.

  E is the midpoint of BC, so BE = EC = 5.

  ADEF is a parallelogram, so DE = A.F = 6.

  D is the midpoint of AB, so AD = DB = 4. ADEF is a parallelogram, so ...

     EF = AD = 4

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As we have noted, AB║EF and DE║A.F, so corresponding angles and alternate interior angles are congruent. <em>b = e = f = i</em>

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3 years ago
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Answer:

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