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slava [35]
3 years ago
7

(x + 2) (x- 7), how to explain this quadratic equation in standard form​

Mathematics
1 answer:
Anna71 [15]3 years ago
3 0

Answer: X squared - 5x - 14

Step-by-step explanation:

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Subtraction of integers
Nataliya [291]

Answer:

First, keep the first number, Second, change the operation from subtraction to addition, Next, get the opposite sign of the second number (known as the subtrahend) and Lastly, proceed with the regular addition of integers.

Step-by-step explanation:

3 0
3 years ago
Suppose that a, b, c, d are positive real numbers such that a/b < c/d . What can you say about the fraction (a+c)/(b+d) ? Is
oee [108]

Answer: (a−c)(b−c)>0

Step-by-step explanation:

ab>1 and ac<01. a>0 if c<0 and also b>02. a<0 if c>0 and also b<0

how i did it:

At the vert first, write the inequality as an equation.

Solve the provided equation for one or more values.

Now, display all the values obtained in the number line.

Use open circles to show the excluded values on the number line.

Find the interim.

At the moment, take any random value from the interval and substitute it in the inequality equation to check whether the values reassure the inequality equation.

Intervals that reassure the inequality equation are the solutions of the given inequality equation.

5 0
2 years ago
What are square meters
marissa [1.9K]
A unit area measurement equal to a square measuring one meter on each side
6 0
3 years ago
WILL MARK BRAINLIEST <br> PLEASE HELP x
polet [3.4K]

Answer:

3. time = 6.4999  approximately 6.5 years

4. $2235.35

5.  $ 3950

Step-by-step explanation:

4. amount of interest =  final amount - principle= 7535.35 - 5300 = 2235.35

5. principle = final amount - interest earned = 4435.25 - 485.25 = 3950

7 0
4 years ago
Abigail has 16 apples she eats 2 apples per day.let y be the apples remaining as a function of the number of week,x
Greeley [361]

Answer:

Let X be the number of weeks.

2x - 16 = 14

   we add 16 on both sides.

2x = 30

now we divide 2 on both sides to get rid of the 2 to the x, we want to get x on its own.

X = 15

3 0
4 years ago
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