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Alisiya [41]
3 years ago
10

What number should be added to the expression x2 + 12x to change it into a perfect square trinomial? (a.6 ( b.18 (c.12 (d.36

Mathematics
1 answer:
dlinn [17]3 years ago
3 0
Hello : 
x²+12x =x²+2(6)(x)
            = x²+2(6)(x) +6²-6²
            = (x-6)² -6²........ (answer : d ; 36)
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The volume v of a sphere with radius r is given by formula v=4/3 . if radius of a spherical rubber ball is 1 1\4 inches , what i
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3 years ago
Find the value of x if (1.1)^x=100​
iragen [17]

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  x ≈ 48.3177

Step-by-step explanation:

This is what logarithms are for (among other things).

  log(1.1^x) = log(100)

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6 0
3 years ago
Find the equation of the line
blagie [28]

Answer:

y= 2x +12

Step-by-step explanation:

Given:

  • line y= 2x -7
  • the point (-3. 6)

The line parallel to the given has the same slope of 2, let's find the intercept using the given point:

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So the equation is:

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7 0
3 years ago
Read 2 more answers
∠A and ∠ B ∠B are supplementary angles. If m ∠ A = ( 4 x − 16 ) ∘ ∠A=(4x−16) ∘ and m ∠ B = ( 8 x + 4 ) ∘ ∠B=(8x+4) ∘ , then find
inna [77]

Answer:

∠ A = 48°

Step-by-step explanation:

Supplementary angles are those angles that measure up to 180 degrees.

∠A and ∠B are supplementary angles. If m ∠ A = ( 4 x − 16 ) ∘ and m ∠ B = ( 8 x + 4 ) ∘,then find the measure of ∠ A

Step 1

∠A + ∠B = 180°

(4x−16)° + (8x+4)° = 180

4x - 16 + 8x + 4 = 180

12x -12 = 180

12x = 180 + 12

12x = 192

x = 192/12

x = 16

Step 2

To find the measure of ∠ A

∠ A = 4x - 16

= 4 × 16 - 16

= 64 - 16

= 48°

Therefore,

∠ A = 48°

6 0
3 years ago
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