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Stella [2.4K]
3 years ago
10

Solve the equation for x. -6x + 8x = -46 A) -23 B) 3.2 C) 12 D) 16

Mathematics
2 answers:
spayn [35]3 years ago
5 0
-6x+8x=-46
2x=-46
x=-46/2
x=-23
max2010maxim [7]3 years ago
3 0
6x+ 8x= 14x
14x= -46
/14        /14
x= -3.3
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12 times a number decreased by 5 is no more than 55
lions [1.4K]

Answer:

  12n -5 ≤ 55

Step-by-step explanation:

12 times a number (represented by n) is 12n.

"Decreased by 5" means 5 is subtracted from the product, giving 12n-5.

"Is no more than 55" means "is less than or equal to 55".

Then the expression written using math symbols is ...

  12n -5 ≤ 55

6 0
3 years ago
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verify that the fucntion satisfies the three hypotheses of rolles theorem on the given interval . then find all numbers c that s
Ghella [55]

The roots of the polynomial <span><span>x^3 </span>− 2<span>x^2 </span>− 4x + 2</span> are:

<span><span>x1 </span>= 0.42801</span>

<span><span>x2 </span>= −1.51414</span>

<span><span>x3 </span>= 3.08613</span>


x1 and x2 are in the desired interval [-2, 2]

f'(x) = 3x^2 - 4x - 4

so we have:

3x^2 - 4x - 4 = 0

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x_1 = -4/6 = -0.66

x_ 2 = 2

According to Rolle's theorem, we have one point in between:

x1 = 0.42801 and x2 = −1.51414

where f'(x) = 0, and that is <span>x_1 = -0.66</span>

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4 0
3 years ago
4.4: Measuring a Picture Frame
BlackZzzverrR [31]
It’s simple, do: 8+8+10+10, just add them you will get 36. The explanation is: Perimeter is add up all the sides, since it is a rectangle it has congruent sides, so they have the same length
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Tom [10]
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now multiply that by .15

now minus that by 595.80

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4 0
3 years ago
Which is the solution to the inequality?
makvit [3.9K]

Answer:

b>3.133333333

Step-by-step explanation:

13/5<b-8/15

13/5+8/15<b

39+8/15<b

47/15<b

3.13333333<b

b>3.13333333

6 0
3 years ago
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