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kupik [55]
3 years ago
5

If ab= 1 , bc = -9, c =-b and c < -a, what is the value a + b ?

Mathematics
1 answer:
MaRussiya [10]3 years ago
7 0
1/3+3

Ab=1
-b^²=-9
B=3
A=1/3
a+b=1/3+3


Mark brainliest please
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Find the x-intercepts for the parabola defined by the equation below. y = x2 + 9x + 14
faltersainse [42]

Answer:

x - intercepts are (-7,0) and (-2,0)

A is the correct option.

Step-by-step explanation:

We have been given the equation of the parabola y=x^2+9x+14

For x- intercept, y = 0

0=x^2+9x+14

We can split the middle term as 9x = 7x +2x

x^2+7x+2x+14=0

Now take GCF

x(x+7)+2(x+7)=0

Factored out the common term

(x+7)(x+2)=0

Apply the zero product property

(x+7)=0,(x+2)=0

Solve for x

x=-7,-2

Hence, x - intercepts are (-7,0) and (-2,0)

A is the correct option.

4 0
4 years ago
I really don’t get it
posledela

<em>you just add 8 + 8 + 8 it equals </em><u><em>24. rounded it will be 20</em></u>

<u><em>--------------------------------------------------</em></u>

<u><em>im pretty sure thats how you do it if not sorry</em></u>

8 0
3 years ago
Find the distance between the points:
lesantik [10]
To calculate distance between two points we use the distance formula sqrt((x2−x1)^2+(y2−y1)^2).  

To start, we find the square of the distance between x1 and x2 and y1 and y2.  The distance between x1 and x2, or 1 and 3, is 2. The distance between y1 and y2, or 3 and -4, is 7.

Now we square 2 and 7 and add them together to get 4 + 49 = 53.

The last thing we do to find the distance is take the square root of 53. 53 is not a perfect square and is also a prime number so our answer in simplest form is still sqrt53.<span />
6 0
3 years ago
Solve for k. m=−8j−9k+9
inn [45]
Answer: k = -8/9j + -1/9m + 1

Step 1: Flip the equation.<span><span><span><span>−8j </span>− 9k </span>+ 9 </span>= m

</span>Step 2: Add -9 to both sides.<span><span><span><span><span>−8j </span>− 9k </span>+ 9 </span>+ −9 </span>= <span>m + −9</span></span><span><span><span>−8j </span>− 9k </span>= <span>m − 9

</span></span>Step 3: Add 8j to both sides.<span><span><span><span>−8j </span>−9k </span>+ 8j </span>= <span>m −9 + 8j</span></span><span><span>−9k </span>= <span><span>8j + m </span>−9

</span></span><span>Step 4: Divide both sides by -9.
-9k/-9 = 8j + m - 9/-9
</span><span>k = -8/9j + -1/9m + 1</span>
7 0
3 years ago
Read 2 more answers
Airport offers 2 shuttles that run on different schedules.if they both leave airport at 4:00 p.m. what time will they next leave
koban [17]
 basically have to find the lowest common multiply of 6 and 9.

The LCM of 6 minutes and 9 minutes = 18 minutes

so if they both leave at 4:00 p.m., they would then both leave at 4:18 p.m.
3 0
3 years ago
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