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Lilit [14]
3 years ago
6

If the sum of x and 3 is ten ,what is the value of x​

Mathematics
1 answer:
olga_2 [115]3 years ago
6 0

Answer:

7 will be the value of x in the question

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Solve for x in the equation x² - 4x - 9 = 29.
alexandr1967 [171]

Answer: First option.


Step-by-step explanation:

 1. To solve this problem you can applly the quadratic formula, which is shown below:

 x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}

2. The quadratic  equation is:

x^{2}-4x-9-29=0\\x^{2}-4x-38=0

3. Then:

a=1

b=-4

c=-38

4. Therefore, when you substitute these values into the quadratic formula, you obtain the following result:

x=\frac{-(-4)+/-\sqrt{(-4)^{2}-4(1)(-38)}}{2(1)}

x=2±√42


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3 years ago
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On a straight road, a car speeds up at a constant rate from rest to 20 m/s over a 5 second interval and a truck slows at a const
KIM [24]
To determine the total distance traveled by an object in constant speed, just multiply the speed by the time. So, for the car, the total distance traveled is,
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For decelerating object, the distance traveled is,
                          distance = Vt - (at^2)/2
For the truck,
         distance by truck = (20 m/s)(10s) - (2m/s^2)((10s)^2)/2 = 100 m

Relatively, both have traveled the same distance. 
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Complete the double number to line show percentages of $50. Fill in the blanks below to match the order of the number line and i
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0.05 then divide each number by 50% then simplify or if it’s a small number then just leave it
8 0
3 years ago
Evaluate 2/3+3/4 <br> 1and5/12
chubhunter [2.5K]

2/3 + 3/4 = 8/12 + 9/12 = 17/12 = 1 5/12

1 + 5/12 = 12/12 + 5/12 = 17/12 = 1 5/12

2/3 + 3/4 = 1 + 5/12

6 0
3 years ago
“Choosing is Refusing” means individuals face an opportunity cost with each decision they make. True or False?
denpristay [2]
The answer is true! 


Hope this helps!
If another answer comes in, mark me as brainliest!
6 0
3 years ago
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