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qaws [65]
3 years ago
15

Help please can’t get this wrong. Am I doing this right if not correct me. And how do I write it

Mathematics
2 answers:
Hunter-Best [27]3 years ago
7 0

Answer:

<-7/2 or a>1

i dunno how to explain i just got it.

zhannawk [14.2K]3 years ago
4 0

Answer:

a<-7/2 or a>1

Step-by-step explanation:

2a+5<-2 or -4a-1<-5

2a<-2-5 -4a<-5+1

2a<-7. -4a<-4

2a/2<-7/2 -4a/-4<-4/-4

a<-7/2 a>1

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Step-by-step explanation:

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(AC)^2 = 98 sq. cm. ( given)

So, (AB)^2 + ((BC)^2 = 98

But, AB = BC = a ( say) …. ( given)

Therefore, a^2 + a^2 = 98

Or, 2a^2 = 98.

So, a^2 = 98 / 2 = 49

Hence, a = AB = BC = √49 = 7 cm.

The side AC ( the hypotenuse) = √98 = √(7 *7*2)

= 7 *√2 = 7* 1.414 = 9..898cm., say, 9.9 cm.

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7 0
2 years ago
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Lorico [155]

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8 0
3 years ago
the volume of a cylinder is given by the formula v=3.14r^2h, where r is the radius of the cylinder and h is the height. suppose
photoshop1234 [79]

we know that

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where

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