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kherson [118]
3 years ago
11

Find the equivalent fraction to next expression 3b^2 + 2(a+5.4b) -2.4b + 1.5a - 2b^2 a 2b2 + 3.5a + 8.4 b b b2 +3.5a + 8.4b c 2b

2 + 3.5a + 8.4b d b2 + 10.8a + 8b
Mathematics
1 answer:
Neporo4naja [7]3 years ago
7 0

Answer:

b²+3.5a+8.4b

Step-by-step explanation:

Given the expression

3b^2 + 2(a+5.4b) -2.4b + 1.5a - 2b^2

Expand

3b^2 + 2a+10.8b -2.4b + 1.5a - 2b^2

Collect the like terms

= 3b²-2b²+2a+1.5a+10.8b-2.4b

= b²+3.5a+8.4b

Hence the equivalent expression is b²+3.5a+8.4b

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telo118 [61]
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Sue either travels by bus or walks when she visits the shops. The probability that she catches the bus from the shops is 0.7. Sh
Alina [70]

Corrected Question

Sue travels by bus or walks when she visits the shops. The probability that she catches the bus to the shops is 0.4. The probability she catches the bus from the shops is 0.7. Show the probability that Sue walks at one way is 0.72

Answer:

P(A \cup B) =0.72 (Proved)

Step-by-step explanation:

Sue travels by bus or walks when she visits the shops.

Let the event that she catches the bus to the shop=A

Let the event that she catches the bus from the shop=B

P(A)=0.4

P(B)=0.7

Both A and B are independent events.

Therefore,Probability that she catches the bus to and from the shop:

P(A∩B) = 0.4 X 0.7= 0.28

Probability Sue walks at least one way P(A \cup B) = 1 - P(A \cap B)

= 1 - 0.28\\= 0.72

Hence, the probability that Sue walks at least one way is 0.72.

8 0
3 years ago
If Joan read 75 pages in 4 hours how long will it take her to read 250 pages
denis23 [38]
75/4=25 pages per hour, so, now we have to divide 250 by 25.

250/25=10

So, it would take Joan 10 hours to read 250 pages. :)
6 0
3 years ago
Read 2 more answers
Y= 1/6x find y when x= -60
vitfil [10]

Answer:

-10

Step-by-step explanation:

Plugin the value of x.

y=1/6(-60)

y=-60/6

y=-10

If this helped please consider giving brainliest.

6 0
3 years ago
1. 612.2 expressed in standard form is
AveGali [126]

Answer:

I believe your question is "what is 612.2 in scientific notation?"

Answer is A) 6.122 x 10²

Step-by-step explanation:

8 0
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