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3 years ago

Order the temperatures from greatest to least.

Mathematics

1 answer:

ch4aika [34]3 years ago

4 0

Answer:

-10

-25

-45

Step-by-step explanation:

Do the biggest number. Then count down. When you get to negative number the smallest negative is the biggest number because it is closer to zero.

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How do you find the solution

aleksandr82 [10.1K]

Given that there were 30 bacteria present originally.
a=30
Also given that the number doubles every one hour.
After one hour the count =2×30=60
Since the count doubles every hour it forms a G.P. with r=2
a,ar,ar2........
The count at the end of 2nd hour=ar^2=30×2^2=120
The count at the end of 4th hour=ar^4=30×2^4=480
The count at the end of 8th hour=ar^8n=30×2^8=7680
etc.
The count at the end of n^th hour=ar^n=30×2^n

Also, the equation y=30*(2)^8/1 give the same result y= 7680

4 0

3 years ago

Paige Sanders bought a dozen eggs at a store for 3.65. She bought the same size eggs the next week at the same store for 2.92. W

algol13

The percent of decrease is $0.73. To get that subtract 3.65-2.92 which equals 0.73.

Hope it helps

6 0

3 years ago

Luke has $21 more than rachel and $48 more than daniel. altogether they have $168. how much does luke have?

Anettt [7]

this can be solve by 3 variable equation

let x be the money of luke

y money of rachel

z money of daniel

first equation

x = y + 21

second equation

x = z + 48

third equation

x + y + z = 168

solving simultaneously

x =79

y = 58

z = 31

7 0

3 years ago

A meteorologist who sampled 4 thunderstorms found that the average speed at which they traveled across a certain state was 16 mi

DENIUS [597]

Answer:

The 90 % confidence interval for the mean population is (11.176 ; 20.824 )

Rounding to at least two decimal places would give 11.18 , 20.83

Step-by-step explanation:

Mean = x`= 16 miles per hour

standard deviation =s= 4.1 miles per hour

n= 4

$\frac{s}{\sqrt n}$ = 4.1/√4= 4.1/2= 2.05

1-α= 0.9

degrees of freedom =n-1= df= 3

∈ ( estimator t with 90 % and df= 3 from t - table ) 2.353

Using Students' t - test

x`±∈ * $\frac{s}{\sqrt n}$

Putting values

16 ± 2.353 * 2.05

= 16 + 4.82365

20.824 ; 11.176

The 90 % confidence interval for the mean population is (11.176 ; 20.824 )

Rounding to at least two decimal places would give 11.18 , 20.83

4 0

3 years ago

Read 2 more answers

Need to find the direction angle for each vector. #10 and #12 please!

crimeas [40]

Answer:

10) - 45 degrees

12) 0 degrees

Step-by-step explanation:

10)

Find the x and y components that define the vector that joins C with D:

x-component: -4 - (-8) = - 4 + 8 = 4

y-component: 4 - 8 = -4

use the tangent function to find the angle $\theta$ :

$tan(\theta)=\frac{y-comp}{x-comp}=\frac{-4}{4} = -1\\\theta = -45^o$

12)

Find the x and y components that define the vector that joins A with B:

x-component: 7 - 4 = 3

y-component: - 1 - (-1) = -1 + 1 = 0

use the tangent function to find the angle $\theta$ :

$tan(\theta)=\frac{y-comp}{x-comp}=\frac{0}{3} = 0\\\theta = 0^o$

5 0

3 years ago