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Anni [7]
2 years ago
9

1. Which is equivalent to (3x - 8)(4x + 2)?

Mathematics
2 answers:
ella [17]2 years ago
8 0

Answer:

12x² - 26x - 16

Step-by-step explanation:

(3x - 8) (4x + 2)

= 3x (4x + 2) - 8 (4x + 2)

= 12x² + 6x - 32x - 16

= 12x² - 26x - 16

Reil [10]2 years ago
4 0

Answer:

12x2 + 6x - 16

Step-by-step explanation:

You foil. "FOIL" stands for "FIRST - OUTER - INNER - LAST" numbers of the two parenthesis.

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What is the equation of the midline of the function f(x) = 5.6sin (2.6x - 4.2) - 9.1?
Iteru [2.4K]

Answer:

f(x) = -9.1

Step-by-step explanation:

The midline is set on f(x) = -9.1, when the sine function is equal to zero, eliminating the effect from amplitude. The midline is a horizontal line. Hence, the equation of the midline is:

f(x) = -9.1

5 0
3 years ago
What two steps are necessary to put this equation into standard form?
andrew-mc [135]
X² - 3x + 27 = 8x - 3     аdd 3 to both sides  ⇒
           + 3          + 3
---------------------------
x² - 3x + 30 = 8x         subtract 8x from both sides ⇒<span>
    - 8x          - 8x
--------------------------
x</span>² - 11x + 30 = 0    ←  <span>standard form
</span>

A. Add 3 to both sides and subtract 8x from both sides.
4 0
3 years ago
Read 2 more answers
PLEASE HELPPP!!!! y = 2/5x + 2
Snezhnost [94]

Answer:

Your answer is y.

Step-by-step explanation:

You start graphing by plotting the 2 and the you go two points up and 5 to the right.

6 0
3 years ago
PLZ ANSWER!
lisabon 2012 [21]

Answer:

357

Step-by-step explanation:

5% of 340 is 17 add that to 340, the price of bicycle by itself and you get 357

6 0
2 years ago
What radius of a circle is required to inscribe a regular hexagon with an area of 210.44 cm2 and an apothem of 7.794 cm
alekssr [168]
We know that

[area of a regular hexagon]=6*[area of one <span>equilateral triangle]
</span>210.44=6*[area of one equilateral triangle]
[area of one equilateral triangle]=210.44/6-----> 35.07 cm²

[area of one equilateral triangle]=b*h/2
h=7.794 cm
b=2*area/h------> b=2*35.07/7.794------>b= 9 cm

the length side of a regular hexagon is 9 cm
<span>applying the Pythagorean theorem
</span>r²=h²+(b/2)²------>r²=7.794²+(4.5)²------> r²=81--------> r=9 cm

<span>this last step was not necessary because the radius is equal to the hexagon side------> (remember the equilateral triangles)
</span>
the answer is
the radius is 9 cm
8 0
3 years ago
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