describe what you can do when solving an inequality to assure that the coefficient of the variable term will be positive
Answers
2X less than or equal to 8
divide by 2 throughout to get X is less than or equal to 4
If the coefficient is negative, then multiply or divide by the negative sign and the same number throughout
-2X is less than or equal to 8
divide by -2 throughout to get
X is GREATER THAN OR EQUAL to 8.
Remember the sign changes when you divide or multiply by negative.
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Answers
Answers
1/30 + 1/20 = 1/x
.083333333=1/x
x=1/.08333333
x=12 minutes
it will take 12 minutes for both hioses to fill the pool
10) Round to the nearest whole number. 70.59
76.684
11) Round to the nearest hundredth
815.755
12) Round to the nearest hundredth
877.71
13) Round to the nearest tenth
Answers
705.9
7668.4
8157.7
8777.3
Answer:
65.9
71
76.84
815.76
877.7
Step-by-step explanation:
Which graph represents the function 4(2x)?
Answers
Answer:
Step-by-step explanation:
index.
25.x4•y6 = 5.x2y3
What is the index for this expression?
A. 2
B. 4
au
Answers
Answer:
A is the answer.
Step-by-step explanation:
2 is the index for this expression.
Final answer:
The index used to simplify the radical expression 25x^4y^6 to 5x^2y^3 is 2 (option A), because each part of the expression was divided by 2 or rather, the square root was taken.
Explanation:
The question is asking about simplifying radicals, specifically what index was used. A key point is to remember that a radical is the inverse operation of applying an exponent, so the unknown index signifies how many times the base (25x^4y^6) in the radical would be multiplied by itself to reach the simplified form (5x^2y^3).
In this case, the index that we used to simplify the radical is 2. This is because the square root was taken of all parts of the under the radical sign and as a result, each part of the expression under the radical was divided by 2. So 25 became 5, x^4 became x^2, and y^6 became y^3. That indicates that the index is 2. Therefore, the answer is A. 2
Learn more about Radicals and Indices here:
#SPJ3
Answers
Here the only value that does not change is the 0.007, the rate! - this is the correct answer.