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Cerrena [4.2K]
3 years ago
12

Evaluate the function at the specified value and simplify when possible.​

Mathematics
1 answer:
Deffense [45]3 years ago
6 0

Answer: x1 = -2, x2 = -1

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GIVING BRAINLIEST PLS HELP!!!!!!1<br><br> Show ur work. And use PEMDAS<br><br> 32+4 x (16 x 1/2) - 2
poizon [28]

Answer:

62

Step-by-step explanation:

32+4x(16x1/2)-2

32+4x8-2

32+32-2

64-2

62

7 0
3 years ago
A rectangle has a length of 17 less than 6 times it's width. If the area of the rectangle is 7585 square feet find the length of
anzhelika [568]

9514 1404 393

Answer:

  205 ft

Step-by-step explanation:

Let w represent the width of the rectangle. Then the length is (6w-17) and the area is ...

  A = LW

  7585 = (6w-17)(w)

  6w² -17w -7585 = 0

Perhaps most straightforward is using the quadratic formula to solve this.

For ax² +bx +c = 0, the solution is x = (-b±√(b²-4ac))/(2a). For the above quadratic, the solution is ...

  x=\dfrac{-(-17)\pm\sqrt{(-17)^2-4\cdot6\cdot(-7585)}}{2\cdot6}=\dfrac{17\pm\sqrt{182329}}{12}\\\\x=\dfrac{17\pm427}{12}=\{-34\frac{1}{6},37\}

The width is 37 feet, so the length is ...

  6(37) -17 = 205 . . . feet

The length of the rectangle is 205 feet.

8 0
3 years ago
4^{3x+2}=<br> 4 <br> 3x+2<br> =<br> \,\,2^{2x-4}<br> 2 <br> 2x−4
aliina [53]

Answer:

Dont know

Step-by-step explanation:

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8 0
3 years ago
Liz is hiking a trail that is 0.8 miles long. Liz hikes the first 2 tenths of the distance by herself. She hikes the of the way
antoniya [11.8K]
0.6 miles.

Since there is 0.8 miles to hike in total, she hiked 0.2 miles.

To solve, we just easily subtract the amount that Liz hiked from the amount that needs to be hiked.

She hiked 0.2 miles, which means we need to subtract 0.2 from 0.8.

8 - 2 = 6

The answer is 0.6 miles.
3 0
3 years ago
Read 2 more answers
What if the following is the sum of both solutions of the equation....
LuckyWell [14K]

answer

D 2

factor

factor the equation x^{2} - 2x - 8 = 0  into (x + a)  and (x + b) so that a + b = -2 and a * b = -8

the two numbers that meet these conditions are a = -4 and b = 2

x^{2} - 2x - 8 = (x - 4)(x + 2)

find solutions

set both (x - 4) and (x + 2) equal to zero to find your solutions

x - 4 = 0

x = 4

x + 2 = 0

x = -2

add solutions

since the two solutions are x = 4 and x = -2, add them together to get your final answer

4 + (-2) = 2

6 0
3 years ago
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