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Dafna11 [192]
3 years ago
10

Plz ive been stuck on this for an hour plzzz help?​

Mathematics
2 answers:
qaws [65]3 years ago
8 0

X<-8

On the number line, put the dot at -8 and shade to the left.

AleksandrR [38]3 years ago
4 0

Answer:

X=-8

Step-by-step explanation:

2 #7&"8*_8-*'7&-$(7

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Xis directly proportional to y.
OleMash [197]
X = k x y
21 = k x 3
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In a study of 225 adults, the mean heart rate was 72 beats per minute. Assume the population of heart rates is known to be appro
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3 years ago
Read 2 more answers
Finding an Equation of a Tangent Line In Exercise, find an equation of the tangent line to the graph of the function at the give
Inga [223]

Answer:

y = 1/e

y = 0.37

Step-by-step explanation:

y = (ln x)/x; (e, 1/e)

Step 1

Find the point of tangency.

It's given as (e,1/e) or (2.72,0.37)

Step 2

Find the first derivative, and evaluate it at x=e

Using product rule.

d(uv) = udv + vdu

Where u = lnx and v = 1/x

du = 1/x , dv = -1/x^2

f'(x) = -lnx/x^2 +1/x^2

f'(x) = (1-lnx)/x^2

At x = e

f'(e) = (1-lne)/e^2

f'(e) = 0

The slope of the tangent line at this point is m= 0

Step 3

Find the equation of the tangent line at (e,1/e) with a slope of m=0

y−y1 = m(x - x1)

y-(1/e) = 0(x-1)

y = 1/e

y = 0.37

6 0
3 years ago
HELP PLEASEE!! <br> Could I have the answers or step by step because I am stuck please tell me!! :)
damaskus [11]

Answer:

1)

\frac{19}{12} \:   or \: 1\frac{7}{12}

2)

\frac{5}{21}

6 0
3 years ago
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