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Anestetic [448]
2 years ago
9

Solve 2 s^3 − 4r^ 2 if r = 1 and s = 5 . step by step

Mathematics
1 answer:
Ulleksa [173]2 years ago
3 0

Answer:

246

Step-by-step explanation:

2(5)^3 - 4(1)^2

250 - 4

246

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how do you determine if the answer to a problem is negative or positive in division multiplication addition and subtraction
erica [24]
In multiplication, a negative times a positive has a negative answer. if both are positive or both are negative, the answer is positive.
5 * -5 = -25
-5* -5 = 25


in divisions say you have
-5/5 = -1
-5/-5= 1
5/-5= -1


in addition and subtraction, subtracting a negative means to add the two numbers. adding a negative means to subtract the second number.

5+ (-5) = 0
5- (-5) = 10
7 0
3 years ago
Read 2 more answers
HELPPP FAST LIKE 4 minutes left
Levart [38]

Answer: A. 40

Step-by-step explanation:

3 0
2 years ago
Anyone know what -10 + 9 is?
KonstantinChe [14]

Answer:

Step-by-step explanation:

-1

3 0
3 years ago
Read 2 more answers
(6a −? )5a =? a2 − 35a
Karolina [17]
Answer:
5a(6a-7) = 30a² - 35a

Explanation:
Before we begin, remember the following:
a(b+c) = ab + bc

Now for the given:
Assume that the first question mark is x and that the second question mark is y.

The expression now becomes:
(6a-x) * 5a = ya² - 35a
Distribute the 5a over the bracket and equate it with the right-hand side as follows:
5a(6a) - 5a(x) = ya² - 35a
30a² - 5ax = ya² - 35a

By comparison:
30a² = ya² ..............> This means that y = 30
-5ax = -35a
-5x = -35
5x = 35
x = 35/5
x = 7

Based on the above, the expression is:
5a * (6a-7) = 30a² - 35a

Hope this helps :)
7 0
3 years ago
Read 2 more answers
CORRECT THE ERROR 1) 4a^(2)*3a^(5)=(4+ 3)a^(2+5)=7a^(7) // 2) x^(6)x*x^(3)=6^(4+3) //
Natasha2012 [34]

Answer:

3

Step-by-step explanation:

8 0
3 years ago
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