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NemiM [27]
3 years ago
10

What is the answer to this?? thank u if u help me! :)

Mathematics
1 answer:
solong [7]3 years ago
5 0
I think it’s 3 I’m not sure
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Write an equation in slope-intercept form for the line with slope −2/5 and y-intercept −4.
BartSMP [9]

Answer:

y = (-2/5)x - 4

Step-by-step explanation:

y = mx + b

where m is the slope and b is the y-intercept

Therefore, y = (-2/5)x - 4

3 0
3 years ago
Five million bacteria live in an organism. The doubling period is 1.5 hours. How many will there be after:
finlep [7]
We write the generic exponential equation:
 y = A (b) ^ t
 Where,
 A: initial population
 B: growth rate
 t: time in hours.
 Substituting values we have:
 y = 5 (2) ^ ((1 / 1.5) * t)
 For t = 9 hours we have:
 y = 5 (2) ^ ((1 / 1.5) * 9)
 y = 320 million
 For t = 24 hours (one day) we have:
 y = 5 (2) ^ ((1 / 1.5) * 24)
 y = 327680 million
 For t = 2 hours we have:
 y = 5 (2) ^ ((1 / 1.5) * 2)
 y = 12.5992105 million
 Answer:
 
a) t hours?
 
y = 5 (2) ^ ((1 / 1.5) * t)
 
b) 9 hours?
 
y = 320 million
 
c) 1 day?
 
y = 327680 million
 
d) 2 hours?
 
y = 12.5992105 million
8 0
3 years ago
Whats The sum of twice a number x and thrice a number y minus the square of z as an expression
SpyIntel [72]

Answer:

2x+3y-z²

Step-by-step explanation:

twice a number =2x

thrice a number =3x

minus z²

HOPE THIS HELPS!!!

8 0
3 years ago
Read 2 more answers
Many realistic application involve sampling without replacement. For example, in manufacturing, quality control inspectors sampl
stich3 [128]

Answer:

a. possible sample size is 10

b. mean is 3

c standard deviation is 0.9

Step-by-step explanation:

Mean of any given set of numbers is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers.

Standard deviation is a measure of the amount of variation or dispersion of a set of values.

Go to attachment for detailed analysis.

4 0
4 years ago
Help pls. Three sodas cost$4.50 at a convenience store. How many would it cost to buy 10 sodas at the same price.
soldier1979 [14.2K]

Answer: $15.00

Step-by-step explanation: If 3 sodas cost you $4.50 then you divide it by 3 to get $1.50 per soda. Then you multiply the number by ten to get $15.

5 0
3 years ago
Read 2 more answers
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