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Alisiya [41]
2 years ago
7

PLEASE HELP I WILL GIVE BRAINLIEST

Mathematics
1 answer:
yan [13]2 years ago
6 0

Answer: part A its -1/9 and for part B its -1/18 trust me i did the test it was hard but I got an 80 and I got part A and B right

Step-by-step explanation:

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Let b be a number such that (2b+5)(b-1)=6b. What is the largest possible value of b? Express your answer as a common fraction.
Oksi-84 [34.3K]

Answer:

Foil the expression and solve the derivative with respect to b at f'(x)=02b^2+3b+5=6b\\d/dx(2b^2+9b+5=0)\\4b+9=0\\b=-9/4

Step-by-step explanation:

4 0
3 years ago
If you subtract 16 from my number and multiply the difference by -7, the result is -154 What is my number
adell [148]

Answer:

16-x*(-7)=-154

7x =-154-16

7x/7=-170/7

X=-24.29

Step-by-step explanation:

Let x represent "my number"

7 0
2 years ago
PLS HELP ME ASAP WITH 1, 2, 5, 6, 11, and 12 PLS!!
melamori03 [73]
1-

number 2) is correct





2- 3) is true



11) Jacob is not correct. because 6radical 5 is irrational



12) radical 20 is an irrational number but

so a+b is irrational



but
\sqrt{225}  = 15 \\ it \: is \: rational

so b+c is rational



good luck
8 0
3 years ago
Help w it please oka
Nadusha1986 [10]

Answer:

13

Step-by-step explanation:

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