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gladu [14]
3 years ago
15

X^2+10x+5=30 quadratic equation

Mathematics
1 answer:
Vsevolod [243]3 years ago
4 0
First subtract 30 from both sides so it is equal to 0

the quadratic formula is -b plus or minus sqrt of (b^2 - 4ac) all over 2a so
-10 plus or minus sqrt (100-25) all over 2
this is equivalent to 
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Which points are solutions to the system of inequalities shown below? Check all that apply.
Alexandra [31]
I: y<2*x
II: y<8
III: x>2

a: (5,3):
I: 3<2*5
3<10 ?yes
II: 3<8 ?yes
III: 5>2 ?yes
This is a solution

b: (6,0):
I: 0<2*6
0<12 ?yes
II: 0<8 ?yes
III: 6>2 ?yes
This is a solution

c: (3,3):
I: 3<2*3
3<6 ?yes
II: 3<8 ?yes
III: 3>2 ?yes
This is a solution

d: (1,-4):
I: -4<2*1
-4<2 ?yes
II: -4<8 ?yes
III: 1>2 ?no
This is not a solution

e: (4,-2):
I: -2<2*4
-2<8 ?yes
II: -2<8 ?yes
III: 4>2 ?yes
This is a solution

f: (5,9):
I: 9<2*5
9<10 ?yes
II: 9<8 ?no
This is not a solution

so a,b,c,e are solutions and d,f not
6 0
3 years ago
Q4) Kiarah collects data throughout the basketball season and uses these 1 point
Jobisdone [24]

Answer:

C. Bulldogs

Step-by-step explanation:

In this question, we want to compare several numbers with different denominators and find out which number is the least. To compare this number, we have to change the denominator into the same number by finding the least common multiple (LCM) of the 4 numbers. The factor of each number will be:

3= 3 ^1

5= 5^1

8= 2 * 2 * 2 = 2^3

2= 2^1

We can find the LCM by multiplying a higher exponent of each prime number. The LCM will be:3^1 * 5^1 * 2^3 = 120

Each number will be:

Tiger= 2/3 * 40/40= 80/120

Redbird = 4/5 * 24/24= 96/120

Bulldogs = 3/8 * 15/15 = 45/120

Titans = 1/2 * 60/60 = 60/120

As you can see, the team with the lowest chance to play is Bulldogs = 45/120

6 0
3 years ago
Which quantity is proportional to 20/5?
kirza4 [7]

Answer:

100/25, 60/15, and 4/1

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Help me please I dont get it
aev [14]

Answer:

x>10

Step-by-step explanation:

I hope it helps. Please let me know.

4 0
2 years ago
Read 2 more answers
6.<br> Find the slope of a line that contains the points: (-3,5) and (-1, 12).<br> Slope =
kap26 [50]

Answer:

7/2

Step-by-step explanation:

Slope= y2-y1/x2-x1

(12-5)/(-1--3)

-> (7)/(2)

7/2

6 0
3 years ago
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