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iVinArrow [24]
2 years ago
7

22. Every hour, Jennifer can sew 24 dresses

Mathematics
1 answer:
JulsSmile [24]2 years ago
3 0

Answer:

2.5 hours

Step-by-step explanation:

24 + 20 = 44

110 divided by 44 = 2.5

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Hiii! does anyone stan nct? if so what's your favorite unit and bias? :D
romanna [79]

Answer:

i not a nctzen yet but i want to be!

Step-by-step explanation:

i am a multistan but there are just too many handsomeness in nct that i cant even keep track of

right now im just trying my best to learn some of their names which i cant even remember lol  

8 0
3 years ago
Read 2 more answers
Suppose that a normal distribution has a mean of 20 and a standard deviation of 4. What is the z-score of 13?
Papessa [141]

Answer:

-1.75.

Step-by-step explanation:

The z-score = (n - m) / d  where n is the value (13) m = mean and d = standard deviation.

= (13 - 20) / 4

= -1.75  (answer)

5 0
3 years ago
Find all solutions in the interval [0, 2π). tan x + sec x = 1
svp [43]
Use the identity 
sec^2x = 1 + tan^2 x
- so sec x = sqrt(1 + tan^2 x) then:-
tan x + sqrt( 1 + tan^2 x) = 1
sqrt ( 1 + tan^2 x) = 1 - tan x
1 + tan^2 x  = 1 + tan^2x - 2 tan x
0 = -2 tanx 

tan x = 0 

x =  0, π 
π is an extraneous root because sec 180 = -1 
So the answer  is 0 degrees
6 0
3 years ago
(X+2) (x+8) <br> expand and simplify
Nutka1998 [239]

Answer:

X+2=2x

x+8=8x

(2x).(8x)=16x

8 0
3 years ago
Sage and Tom started the month with the same number of talk minutes on their cell phones. Sage talked for 7 minutes with her dad
Paraphin [41]

Answer:

a. Sage and Tom have the same number of talk minutes left on their cell phone plans.

b. y = x - 7

Explanation:

Sage talked for 7 minutes with her dad.

Tom talked for 4 minutes with a friend and 3 more minutes with his mom which means he spoke for :

= 4 + 3

= 7 minutes

They both spoke for 7 minutes and therefore have the same amount of time left.

Algebraic expression:

Assuming the time Tom started with is denoted by x and the time he is left with is denoted by y.

The expression is:

y = x - 7

6 0
3 years ago
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