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Kamila [148]
3 years ago
6

PLEASE HELP

Mathematics
2 answers:
balandron [24]3 years ago
5 0

Answer:

can I answer your question in comment box

tigry1 [53]3 years ago
3 0

Answer:

can I answer your question in comment box

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What is the intermediate step in the form (x + a)2 = b as a result of completing the
Eddi Din [679]

Answer:

(x + 7)^2 = 64

Step-by-step explanation:

x^2 + 23x – 19 = 9x - 4

x^2 + 23x - 9x = -4 + 19

x^2 + 14x = 15 = 0

Completing the square:

(x + 14/2)^2 - (14/2)^2 = 15

(x + 7)^2 - 49 = 15

(x + 7)^2 = 64

8 0
2 years ago
keith is an independent filmmaker . hes planning to serve pizza and sub sandwiches at his first film debut . the number of sandw
tamaranim1 [39]

Answer:

35 sandwiches

Step-by-step explanation:

62÷2=31

31+4=35

3 0
3 years ago
What whole numbers does the square root of 39 lie between
Oksi-84 [34.3K]
The square root of 39 is 6.245. It lies between the whole numbers 7and 8!
6 0
3 years ago
Classify this expression
lyudmila [28]

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8.

8. - 1. - 44

9

8 0
2 years ago
The American Water Works Association reports that the per capita water use in a single-family home is 74 gallons per day. Legacy
Lunna [17]

Answer:

Reject H0 since test statistic <-2.492

Step-by-step explanation:

Given that the American Water Works Association reports that the per capita water use in a single-family home is 74 gallons per day.

n = 25

x bar = 69

s= 8.3

std error = s/sqrt n = \frac{8.3}{5} \\=1.66

H0:\bar x = 74

Ha: \bar x

(Left tailed test at 5% significance level)

a) Reject H0 if t\leq-2.492

b) Test statistic = mean difference/std error

= \frac{69-74}{1.66} \\=-3.012\\

=-3.01

df =24

c) Reject H0

6 0
3 years ago
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