Simplify both sides of the equation. (Distribute)
<span><span><span><span>(−7.8)</span>(x)</span>+<span><span>(−7.8)</span>(6.5)</span></span>=−25.74 </span> <span><span><span><span>−7.8x </span>+ </span>−50.7</span>= −25.74 -------------> </span>−7.8x − 50.7= −25.74
<span>Add 50.7 to both sides.
</span><span><span><span>−7.8x </span>− 50.7 </span>+ 50.7 </span>= <span>−25.74 + 50.7 ---------------------> </span><span>−7.8x </span>= <span>24.96
</span><span>Divide both sides by -7.8.
</span><span><span>−7.8x /</span>−7.8 </span>= <span>24.96/<span>−<span>7.8
</span></span></span><span>
X= </span><span>−3.2 :D</span><span>
</span>
Answer:
Hey there!
First we find the slope: -3-0/10-4, or -3/6. That makes the slope -1/2.
Using point slope form we have-
y-0=-1/2(x-4)
y=-1/2x+2
Let me know if this helps, or if you need any more help :)
Answer:
C) =
Step-by-step explanation:
I -56I = I56I
Absolute value of a number I X I is always non-negative value
Value of I -2 I = 2 & I 2I = 2
Answer:
216 in 2
Step-by-step explanation:
Answer:
- x ≥ 2009
- 3.2x -6222.8
- 257.2 mm
- year 2100
Step-by-step explanation:
1. The problem statement tells you the function applies for year values (x) 2009 and later. The domain is real numbers greater than or equal to 2009.
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2. We can use the distributive property to eliminate parentheses:
3.2(x -2009) +206 = 3.2x -6428.8 +206
= 3.2x -6222.8
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3. Put 2025 in the equation and do the arithmetic
g(2025) = 3.2·2025 -6222.8 = 257.2 . . . . mm
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4. Put this value of level rise in the equation and solve for x.
g(x) = 3.2x -6222.8
500 = 3.2x -6222.8 . . put 500 mm where g(x) is in the equation
6722.8 = 3.2x . . . . . . . add 6222.8
x = 6722.8/3.2 = 2100.875
The water rise will be equal to about half a meter late in the year 2100.
