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fiasKO [112]
3 years ago
13

Your local Ford dealership is having a sale. All 2008 model trucks have been reduced by 15% and for a limited time, all tra

Mathematics
1 answer:
vekshin13 years ago
5 0

Answer: the answer is A. 0.85; 0.95

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Please help explain how to solve problem 16?
Anarel [89]
Here is the problem.....√(15x + 10) = 2x+3

to remove the square root, we do the opposite which is to square everything.

(√(15x + 10))² = (2x + 3)²      (the square negates the square root)
15x + 10 = (2x +3)(2x + 3)    (use the distributive property to continue)
15x + 10 = 4x² + 6x + 6x + 9  (combine like terms)
15x + 10 = 4x² + 12x + 9      (subtract 15x and 10 from each side)
-15x - 10          -15x - 10
0 = 4x² - 3x - 1                      (factor completely)
(x - 1) (4x + 1)                    (set each to equal 0)

x - 1 = 0                4x + 1 = 0
x = 1                      4x = -1
                               x = -1/4

place both into the equation to check for reasonableness...we see the negative number is not reasonable, but the x value of 1 is a solution.

answer is 1
4 0
3 years ago
Which is the solution to the inequality 1/4+x<5/8
Masteriza [31]

Answer:

x<3/8

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Step-by-step explanation:

Step 1: Simplify both sides of the inequality.

x+1/4<5/8

Step 2: Subtract 1/4 from both sides.

x +  1/4 - 1/4 < 5/8 - 1/4

x<3/8

7 0
3 years ago
For a sample size n = 24 and a population parameter of p = 0.4, a normal curve can be used to approximate the sampling distribut
Kipish [7]

Answer:False

Step-by-step explanation:

6 0
3 years ago
Estimate : 1) 48% of 8 2) 3% of 119 3) 26% of 32 4) 76% of 280
zaharov [31]
1) 48% of 8=3.84 
2) 3% of 119=3.57
3) 26% of 32=8.32
4) <span>76% of 280=212.8

Hope this helps ya!</span>
7 0
3 years ago
Miguel's teacher instructed him to graph the linear equation y = (3/5)x + 1. He
gladu [14]
I think it is C.) (3,6)
5 0
3 years ago
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