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Elina [12.6K]
3 years ago
15

The product of 2x^2+6x-8 and x+3 in standard form

Mathematics
1 answer:
anzhelika [568]3 years ago
6 0

Answer:

2x³ + 12x² + 10x - 24

Step-by-step explanation:

(2x² + 6x - 8)(x + 3)                         Distribute

2x³ + 6x² + 6x² + 18x - 8x - 24      Combine like terms

2x³ + 12x² + 10x - 24                      This expression is in standard form

If this answer is correct, please make me Brainliest!

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Can you please help me with this
Vitek1552 [10]

Answer:

log9

Step-by-step explanation:

Using the rules of logarithms

logx + logy = log(xy)

logx - logy = log(\frac{x}{y})

logx^{n} ⇔ nlogx

Given

2(log18- log3) + \frac{1}{2}log\frac{1}{16}

= 2(log(\frac{18}{3} ) ) + log(\frac{1}{16}) ^{\frac{1}{2} }

= 2log6 + log\frac{1}{4}

= log6² + log\frac{1}{4}

= log36 + log\frac{1}{4}

= log( 36 × \frac{1}{4} )

= log9

5 0
3 years ago
PLEASE HELP ASAP I’LL MARK BRAINLIEST Find the area of the figure.
Sonbull [250]
Area of a semicircle is 1/2* πr^2
Area of a square is s^2


Square’s area: 4mm^2

The radius is 3mm
Plug into the equation

1/2* π(3^2)
1/2* π(9)

We can use 3.14 as an estimate of pi

1/2*28.26

14.13mm^2

Now just add them both

Total area 18.13mm^2
4 0
3 years ago
Find three consecutive even integers that sum up to -48
Igoryamba
We can write the equation: x + x + 2 + x + 4 = -48, where x is the least digit and x + 4 is the greatest. We get 3x + 6 = -48, 3x = -54. x = -18, so x + 2 is -20, and x + 4 is -22. Therefore, the 3 consecutive even integers that sum to -48 are -18, -20, and -22.
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Hope this helps!
4 0
3 years ago
What is the total surface area of the pyramid below?
mel-nik [20]

Answer:I guess 6 ft as you gave same options

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Evaluate k(4) for the function k(x)=18−2x
KiRa [710]

Answer:

k(4) = 10

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

k(x) = 18 - 2x

k(4) is x = 4

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    k(4) = 18 - 2(4)
  2. Multiply:                               k(4) = 18 - 8
  3. Subtract:                              k(4) = 10
5 0
3 years ago
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