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sleet_krkn [62]
3 years ago
12

Please help this is due tomorrow

Mathematics
2 answers:
trapecia [35]3 years ago
8 0
The answer is 8 because you have to do the math and then it would be 8.5 so it’d have to be 8 or 9
mote1985 [20]3 years ago
7 0

Answer:

8

Step-by-step explanation:

because if you do it then the anwser would be 8.5 so it could be 8 or 9

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A: What are the solutions to the quadratic equation x^2+9=0?
Nataliya [291]

Answer:

Part A)

x=-3i

x=3i

Part B)

(x+3i)(x-3i)

Step-by-step explanation:

Given:

Part A)

x^2+9=0

x^2=-9

x= √-9

x=√-1 *√9

x=± i *3

x=±3i

Part B)

x^2+9=0

x^2 - (-9)=0

x2-(3i)^2=0

(x-3i)(x+3i)=0 !

3 0
3 years ago
Determine how much money you will have after 8 years if you invest 4,000$ at 7% compounded monthly
Solnce55 [7]
You would get $26,880.
0.07*4000= 280; so $280 are added every month
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7 0
2 years ago
Please help! Will give Brainly!
Semmy [17]

Answer:

Yes no no

Step-by-step explanation:

8 0
2 years ago
Complete the steps of the derivation of the quadratic formula step 1: (x+b/2a)^2-b^2-4ac/4a^2=0
CaHeK987 [17]
(x+b/2a)^2-(b^2-4ac)/2a=0
Step 2:
Re-write the expression:
(x+b/2a)^2=(b^2-4ac)/4a^2

Step 3:
get the square root of both sides:
x+b/2a=sqrt[(b^2-4ac)/4a^2]

Step 4:
Simplifying we get:
x+b/2a=sqrt[b^2-4ac]/2a

Step 5
Make x the subject:
x=-b/2a+/-sqrt[b^2-4ac]/2a


5 0
3 years ago
Read 2 more answers
Whats an equation in the form of y=ax+b ?
Step2247 [10]

Answer: Slope-Intercept

6 0
2 years ago
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