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3 years ago

Help me plsonly 10 points

Mathematics

2 answers:

RSB [31]3 years ago

8 0

Step-by-step explanation:

z represents the cost of an adult ticket while y represents the cost of a student ticket, so:

64z+132y=$1040

Adults ticket cost twice as much as a students ticket so:

64z=128y

128y+132y=$1040

260y=$1040

y=$4 (Cost of student ticket)

z=$8 (Cost of adult ticket)

nevsk [136]3 years ago

7 0

Answer:

64x+132y= 1040 for the first part

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Which expression below gives the average rate of change of the function h(x)=4^(x+2)+7 on the interval –3 ≤ x ≤ 5?

viktelen [127]

Answer:

$\frac{4^8-1}{32}$

Step-by-step explanation:

$h(x)=4^{(x+2)} +7$

We know that formula for average rate of change of a function from a to b is

$\frac{f(b)-f(a)}{b-a}$

Here f equals h and a =-3 b=5

h(a) = $4^{5+2} +7 = 4^7+7$

and

h(b) = $4^{-3+2} +7 = \frac{1}{4} +7$

h(b)-h(a) = $4^7-\frac{1}{4} =\frac{4^8-1}{4}$

b-a = 5-(-3) =8

Hence average rate of change is

$\frac{4^8-1}{4}(\frac{1}{8} )=\frac{4^8-1}{32}$

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