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3 years ago

H(x) = x2 + 1 k(x) = x – 2 (h + k)(2) =

Mathematics

1 answer:

weeeeeb [17]3 years ago

6 0

Answer:

Step-by-step explanation:

Evaluate (h + k)(x) then substitute x = 2 into the result

(h + k)(x) = h(x) + k(x)

h(x) + k(x) = x² + 1 + x - 2 = x² + x - 1, thus

(h + k)(2) = 2² + 2 - 1 = 4 + 2 - 1 = 5

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Help! I have looked at so many lessons on writing exponential functions from a graph and nothing has helped.

Over [174]

Answer:

y = $8(-\frac{1}{2})^x$

Step-by-step explanation:

Let the equation of the exponential function is,

y = a(b)ˣ

Since the graph of this function passes through two points $(4, \frac{1}{2})$ and (3, -1)

For the point $(4, \frac{1}{2})$ ,

$\frac{1}{2}=a(b)^4$ ---------(1)

For second point (3, -1),

-1 = a(b)³ ---------(2)

Divide equation (2) by equation (1),

$\frac{\frac{1}{2}}{-1}$ = $\frac{a(b)^4}{a(b)^3}$

$-\frac{1}{2}=b^{(4-3)}$

$-\frac{1}{2}=b$

From equation (2)

-1 = $a(-\frac{1}{2})^3$

-1 = $-\frac{1}{8}a$

a = 8

Therefore, equation of the exponential function will be,

y = $8(-\frac{1}{2})^x$

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3 years ago

In the equations of Law of Cosines do I multiply the two by both a AND b or just A?

SashulF [63]

The final answer is 34.0

See the attached image to see how I got that answer.

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3 years ago

What is the y and x? <br> write an equation.

solong [7]

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~{{ 1993}} &,&{{ 14220}}~) 
% (c,d)
&&(~{{ 1997}} &,&{{ 9780}}~)
\end{array}
\\\\\\
% slope = m
slope \implies 
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\\\\\\
y-14220=-1110x+2212230\implies y=-1110x+2226450$

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3 years ago

Kelly has 1/2 of a gallon of milk left in her refrigerator. She drank 3/4 of it. What fraction of gallon of milk is left in the

Colt1911 [192]

1/4
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1/2=2/4

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3 years ago

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bezimeni [28]

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