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inysia [295]
3 years ago
14

Simplify 3 – b(7b + 2) + 3b – (11 – b).

Mathematics
2 answers:
lutik1710 [3]3 years ago
6 0

Answer: -7b2+2b-8

Step-by-step explanation:

I just did the assignment

bixtya [17]3 years ago
4 0
<span>Simplifying 7b + -4 + 3b + 11 + -1b = 0
 
Reorder the terms: -4 + 11 + 7b + 3b + -1b = 0
 
Combine like terms: -4 + 11 = 7 7 + 7b + 3b + -1b = 0
 
Combine like terms: 7b + 3b = 10b 7 + 10b + -1b = 0
 
Combine like terms: 10b + -1b = 9b 7 + 9b = 0
 
Solving 7 + 9b = 0
 
Solving for variable 'b'.
 
Move all terms containing b to the left, all other terms to the right.
 
Add '-7' to each side of the equation.
7 + -7 + 9b = 0 + -7
 
Combine like terms: 7 + -7 = 0 0 + 9b = 0 + -7 9b = 0 + -7
 
Combine like terms: 0 + -7 = -7 9b = -7
 
Divide each side by '9'. b = -0.7777777778 Simplifying b = -0.7777777778</span>
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choli [55]

Answer:

y = -cos(2x)

Step-by-step explanation:

Mean/mid line: y = 0

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7 0
2 years ago
If sally got 28 questions correct and received 70% on the exam, how many questions were on the exam
Furkat [3]

Answer: 40

Step-by-step explanation:

Number of correct questions Sally got = 28 questions

Percentage of correct questions answered= 70% on the exam,

Total number of questions in the exam = Unknown

Let the total questions in the exam be represented as y.

Since Sally got 70% correctly, this will be:

70% of y = 28

70/100 × y = 28

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0.7y = 28

Divide both side by 0.7

0.7y/0.7 = 28/0.7

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7 0
3 years ago
Caroline has a movie card worth $75 that her grandfather gave to her for her birthday. After seeing her first movie, the card’s
faust18 [17]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
What is 1 third added to 5 sixths?
Brilliant_brown [7]
The answer is 61/100
7 0
3 years ago
Read 2 more answers
Find two numbers that multiply to make the first number and add to make the second number. (I understand how to do it, I’m just
oee [108]
Let
x-----------> <span>the first number 
y-----------> </span><span>the second number

we know that
x*y=x-----------> y=x/x----------> y=1
and x+y=y------> x=y-y---------> x=0

 the answer is
</span> the first number  is 0
 the second  number is 1<span>

</span>
6 0
3 years ago
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