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arsen [322]
3 years ago
9

What is the solution set to the inequality 5(x – 2)(x + 4) > 0

Mathematics
1 answer:
Fittoniya [83]3 years ago
7 0
<span>5(x – 2)(x + 4) > 0
  (5x-10)(x+4)>0
   6x -6  > 0 
        +6  +6
       6x >
</span>x<-4 or x>2
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Find<br>a,b<br>such<br>that 7.2, a, b, 3 are in A.P.​
leonid [27]

Answer:

  • The value of a = 5.8
  • The value of b = 4.4

Step-by-step explanation:

Given

7.2, a, b, 3 are in A.P

2a = 7.2+b

b = 2a - 7.2

as

a, b, 3 are also in A.P

2b\:=\:a\:+\:3

Putting b = 2a - 7.2

2\left(2a-7.2\right)=a+3

4a-14.4=a+3

\mathrm{Add\:}14.4\mathrm{\:to\:both\:sides}

4a-14.4+14.4=a+3+14.4

4a=a+17.4

4a-a=a+17.4-a

3a=17.4

\mathrm{Divide\:both\:sides\:by\:}3

\frac{3a}{3}=\frac{17.4}{3}

a=5.8

Now, plugging a=5.8 in b = 2a - 7.2

b=2\left(5.8\right)-7.2

b=2\cdot \:5.8-7.2

b=11.6-7.2

b=4.4

Therefore,

  • The value of a = 5.8
  • The value of b = 4.4
4 0
3 years ago
vusi leaves home at 8:00 an cycles to marks house. after 30 minutes, 10km from his home, he gets a puncture. calculate vusis spe
lora16 [44]

hain hai ka hai ka bhi ka ke hai khaie hai ka hai

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3 years ago
PLZ HURRY IT'S URGENT!!
belka [17]
2y^4 and 5y^4 because same variable (y), same degree (3)
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3 years ago
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What is the value of the expression <br> 3.2(2.3)−4.8
Anna71 [15]
It is 2,56 i think but i dont completely know thoe


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3 years ago
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The number of counties in state a and the number of counties in state b are consecutive even integers whose sum is 9090. if stat
Oliga [24]
Let x = state b , then x + 2 = state a

now: x + (x +2) = 9090 or 2x + 2 = 9090 Solving this equation:
2x + 2 = 9090 subtract 2 from both sides
2x = 9088 divide both sides by 2
x = 4544
that means x + 2 = 4546

so state a = 4546 and state b = 4544
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3 years ago
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