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klemol [59]
3 years ago
12

What is the value of 3(4x+5y) - 2(7x-3y) when x = -2 and y = 3

Mathematics
2 answers:
Shkiper50 [21]3 years ago
6 0

Answer:

67

Step-by-step explanation:

Subsitute both given values into the equation then continue to simplify the equation

3(4(-2)+5(3)) -2(7(-2)-3(3))

3(-8+15) -2(-14-9)

3(7) -2(-23)

21 +46

67

attashe74 [19]3 years ago
4 0
The answer to this question is 67..
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Which of the following shows the polynomial below written in descending<br> order?
Vladimir79 [104]

Answer:

A. 4x¹² + 9x⁷ + 3x³ -x

Step-by-step explanation:

Hi!

<em>==================================================================</em>

To write a polynomial in descending order, we write the terms with higher degrees, or exponents, first.

3x³ + 9x⁷ -x + 4x¹²

4x¹² has the highest degree, so it is written as the first term.

⇒4x¹²

9x⁷ has the next highest degree, so it is written next.

⇒4x¹² + 9x⁷

3x³ has the next highest degree, so it is written next.

⇒4x¹² + 9x⁷ + 3x³

-x has the lowest degree, so it is written last.

⇒4x¹² + 9x⁷ + 3x³ -x

<u>4x¹² + 9x⁷ + 3x³ -x</u>

<em>==================================================================</em>

<em>Hope I Helped, Feel free to ask any questions to clarify :)</em>

<em>Have a great day!</em>

<em>        -Aadi x</em>

8 0
3 years ago
What is a counterexample for "subtraction of whole numbers is commutative" ??
devlian [24]
The commutatice property for addition says a+b=b+a
If it was for subtraction, then it would be a-b=b-a
Take a=7 and b=5
7-5 is not equal to 5-7
2 is not equal to -2
So subtraction is not commutative for whole numbers.

Hope this helps :)
6 0
4 years ago
Which is the logarithmic form of 25 = 52?
goldfiish [28.3K]

Answer: 5^5=52

Step-by-step explanation:

7 0
3 years ago
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Answer:

0.4970

Step-by-step explanation:

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What is the exact situation
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Number Two or B would be correct
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