The phrase "subtract 7 from c" written in algebraic expression is c - 7
<h3>Algebraic expression</h3>
This is a system of computation using letters or other symbols to represent numbers, with rules for manipulating these symbols.
= c - 7
For instance, if c = 15
c - 7
= 15 - 7
= 8
Therefore, the phrase "subtract 7 from c" written in algebraic expression is c - 7
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Answer:
0 < x < 2.5
Step-by-step explanation:
-16x² + 38x + 5 = 0
-16x² + 40x - 2x + 5 = 0
-8x(2x-5) - 1(2x-5) = 0
x = -⅛ , 2.5
0 < x < 2.5
Answer:y= -9x-25
Step-by-step explanation: Write the slope-intercept form of an equation of the line with slope -9 and passes through the point (-2, -7).
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Form:: y = mx + b
Solve for "b"::
-7 = -9*-2 + b
-7 = 18 + b
b = -25
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Equation:
y = -9x - 25
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Cheers,
Stan H.
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point slope formula
y-y1=m(x-x1)
y+7= -9(x+2). Notice that we are subtracting a negative, so we have to add.
y+7=-9x-18
y= -9x-25
It is 0.8 or 80% that is the answer