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FrozenT [24]
3 years ago
15

Write the function f(x)=-3x^(2)+18x-24 in intercept form

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0

Answer:

x=67

Step-by-step explanation:

chicken <3

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Which expression is a difference of two terms that is equivalent to -6z + 13?
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Answer: D

Step-by-step explanation:

(5z + 15) - (11z + 2)

= (5z-11z) +(15-2)

= -6z+13

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Austin is building a miniature replica of the empire state building. the actual empire state building is 1,423 feet tall and 6,0
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A study was designed to compare the attitudes of two groups of nursing students towards computers. Group 1 had previously taken
trasher [3.6K]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

Group 1:

μ1 = 59.7

s1 = 2.8

n1 = sample size = 12

Group 2:

μ2 = 64.7

s2 = 8.3

n2 = sample size = 15

α = 0.1

Assume normal distribution and equ sample variance

A.)

Null and alternative hypothesis

Null : μ1 = μ2

Alternative : μ1 < μ2

B.)

USing the t test

Test statistic :

t = (m1 - m2) / S(√1/n1 + 1/n2)

S = √(((n1 - 1)s²1 + (n2 - 1)s²2) / (n1 + n2 - 2))

S = √(((12 - 1)2.8^2 + (15 - 1)8.3^2) / (12 + 15 - 2))

S = 6.4829005

t = (59.7 - 64.7) / 6.4829005(√1/12 + 1/15)

t = - 5 / 2.5108165

tstat = −1.991384

Decision rule :

If tstat < - tα, (n1+n2-2) ; reject the Null

tstat < t0.1,25

From t table :

-t0.1, 25 = - 1.3163

tstat = - 1.9913

-1.9913 < - 1.3163 ; Hence reject the Null

5 0
3 years ago
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