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Mama L [17]
3 years ago
14

6 + 6y = 30 Submit Answer What is y

Mathematics
2 answers:
Lapatulllka [165]3 years ago
7 0

Answer:

5

Step-by-step explanation:

Vesna [10]3 years ago
6 0

Answer:

y=4 bc 6+6times 4=30

Step-by-step explanation:

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How do I solve this?
anyanavicka [17]

Answer:

Step-by-step explanation:

Slope= -3/1

plot from point  (-2,4)

3 0
3 years ago
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A line tangent to the curve f(x)=1/(2^2x) at the point (a, f(a)) has a slope of -1. What is the x-intercept of this tangent?
kirza4 [7]

Answer:

x-intercept = 0.956

Step-by-step explanation:

You have the function f(x) given by:

f(x)=\frac{1}{2^{2x}}   (1)

Furthermore you have that at the point (a,f(a)) the tangent line to that point has a slope of -1.

You first derivative the function f(x):

\frac{df}{dx}=\frac{d}{dx}[\frac{1}{2^{2x}}]  (2)

To solve this derivative you use the following derivative formula:

\frac{d}{dx}b^u=b^ulnb\frac{du}{dx}

For the derivative in (2) you have that b=2 and u=2x. You use the last expression in (2) and you obtain:

\frac{d}{dx}[2^{-2x}]=2^{-2x}(ln2)(-2)

You equal the last result to the value of the slope of the tangent line, because the derivative of a function is also its slope.

-2(ln2)2^{-2x}=-1

Next, from the last equation you can calculate the value of "a", by doing x=a. Furhtermore, by applying properties of logarithms you obtain:

-2(ln2)2^{-2a}=-1 \\\\2^{2a}=2(ln2)=1.386\\\\log_22^{2a}=log_2(1.386)\\\\2a=\frac{log(1.386)}{log(2)}\\\\a=0.235

With this value you calculate f(a):

f(a)=\frac{1}{2^{2(0.235)}}=0.721

Next, you use the general equation of line:

y-y_o=m(x-x_o)

for xo = a = 0.235 and yo = f(a) = 0.721:

y-0.721=(-1)(x-0.235)\\\\y=-x+0.956

The last is the equation of the tangent line at the point (a,f(a)).

Finally, to find the x-intercept you equal the function y to zero and calculate x:

0=-x+0.956\\\\x=0.956

hence, the x-intercept of the tangent line is 0.956

5 0
2 years ago
Examine the equation.<br><br> –2(–x + 9) = 2(x – 9)<br> 2x – 18 = 2x – 18<br> This equation has
kolezko [41]

Answer:

infinite solutions

Step-by-step explanation:

6 0
3 years ago
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the area of a square room can be expressed as 196x12y10z6 square feet . hajime is installing a wallpaper border along the perime
pantera1 [17]
Area for square = s² = 196x¹²y¹⁰z⁶

s = √(<span>196x¹²y¹⁰z⁶)

s = 14x</span>⁶y⁵z³

Perimeter = 4*s = 4*(14x⁶y⁵z³) = 56x<span>⁶y⁵z³

Perimeter = 56</span>x<span>⁶y⁵z³        D</span>
7 0
3 years ago
When you graph a system of equations what are the three possible outcomes?
siniylev [52]

Answer:

i think its a beaner

Step-by-step explanation:

5 0
2 years ago
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