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kiruha [24]
4 years ago
6

4. (7x + 5) – (3x + 2) =

Mathematics
1 answer:
Pani-rosa [81]4 years ago
6 0
Collect like terms and calculate the sum
answer is: 4x+7
You might be interested in
A student is instructed to square a binomial and gets the results show
otez555 [7]

The correct option about squaring the binomial is that B. The student is wrong. There is a missing term.

<h3>How to use binomial theorem?</h3>

We want to square a binomial and using pascal's triangle in binomial theorem, we know that; (x + a)² will follow the pattern;

1x²a⁰ + 2a¹x¹ + 1x⁰a²

Thus, we can say that the expression (x + 3)² will give us;

x² + 2(3x) + 9a²

= x² + 6x + a²

Thus, we can say that the correct option about squaring the binomial is that B. The student is wrong. There is a missing term.

Complete Question is;

A student is instructed to square a binomial, and gets the result shown. Choose the correct description of the student's work.  (x + 3)² = x² + 9 Choose the correct answer below.

A. The student is wrong. You cannot square a binomial, only monomials.

B. The student is wrong. There is a missing term.

C. The student is correct. Each given term is squared.

D. The student is wrong. The student should add the threes instead of multiplying them.

Read more about binomial Theorem at; brainly.com/question/13602562

#SPJ1

7 0
2 years ago
A farm has chickens and goats. Each chicken has 2 legs and each goat has 4 legs. The total number of chicken legs and goat legs
Inessa05 [86]
I’m going with 22 because 10x2 is 20 then 10x4 is 40 then 40+20 is 60 so the answer would be 22 because I would also have to add the other 2 to the problem. I’m so so so sorry if I did this wrong
8 0
3 years ago
At a certain vineyard it is found that each grape vine produces about 10 lb of grapes in a season when about 700 vines are plant
Delicious77 [7]

Answer:

Number of vines that should be planted are 150.

Step-by-step explanation:

The number of pounds of pounds of grapes produced per acre is represented by the expression A_{n}=(700+n)(10-0.01n)

Where n = additional vines planted

To maximize the production of grapes we will find the derivative of A(n) and equate it to zero.

A_{n}=(7000+3n-0.01n^{2} )

A'_{n}=(3-0.02n)

For A'_{n}=0

3 - 0.02n = 0

0.02n = 3

n = \frac{3}{0.02}

n = 150

To check whether the maximum value of the function is at n = 150, we will find the second derivative A(n).

A''_{n}=-0.02

Which shows A"(n) < 0

Therefore, A(n) has the maximum value at n = 150.

Therefore, number of vines that should be planted are 150.

5 0
4 years ago
Q + 12 ≥ 5<br> Solve the inequality
koban [17]

Answer:

Q≥-7

Step-by-step explanation:

Q+12≥5 subtract 12 from both sides Then simplify

8 0
3 years ago
One-quarter of a pound of bananas costs $0.82. How much does one pound of bananas cost?
aev [14]

Answer:

.82 x 4 = $3.28

.82 = 1/4 pound, so you multiply by 4 (the reciprocal of 1/4) to get a whole.

Hope this helps <3

3 0
4 years ago
Read 2 more answers
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