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Ulleksa [173]
3 years ago
5

The mean temperature for the first 7 days in January was 3 °C.

Mathematics
1 answer:
weeeeeb [17]3 years ago
6 0

m = \frac{a_1 + a_2 + ... + a_n}{n}\\~\\m = \frac{3 * 7 + 2}{8} = \frac{21 + 2}{8} = \frac{23}{8} = 2,875

Answer: 2,875.

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Which describes the graph of fx=[x]-2 on [0, 3)?
marissa [1.9K]

Answer:

Step-by-step explanation:

Find the absolute value vertex. In this case, the vertex for  

y = |x − 2 | + 1 is  ( 2 , 1 ) .

To find the  x  coordinate of the vertex, set the inside of the absolute value  

x − 2  equal to  0 . In this case,  

x − 2 = 0. x−2 = 0

Add  2  to both sides of the equation.

x = 2

Replace the variable  x  with  2  in the expression.

y = | ( 2 ) − 2 | + 1

Simplify  

| ( 2 ) − 2 | + 1 .

Simplify each term.

Subtract  2  from  2

y = | 0 | + 1

The absolute value is the distance between a number and zero. The distance between  0  and  0  is  0 .

y = 0 + 1

Add  0  and  1 .

y = 1

The absolute value vertex is  ( 2 , 1 ) . ( 2 , 1 )

8 0
3 years ago
a certain number of quartersz five times as many pennies as quarters, and 12 more dimes than quarters are worth 8.00. dollars ho
Naya [18.7K]
5... I'm guessing and just trying to get credit lol
7 0
3 years ago
Read 2 more answers
I need help on #10. I figured the other ones out
GalinKa [24]
First, find the ratio between the two polygons. Lets take segment MG and TV since they are congruent. MG is 4, TV is 3. The ratio of MG to TV is 4:3. We can write it as 4/3. Since other arts are congruent as well, then NK is congruent to PR, and has a ratio of 4:3. This means that (3x-2)/(x+4) is equal to 4/3. Now solve for x
(3x-2)/(x+4)=4/3 
3(3x-2)=4(x+4)         ---cross multiply
9x-6=4x+16
9x-4x-6=4x-4x+16    ---subtract 4x from both sides
5x-6=16
5x-6+6=16+6            ---add 6 on both sides
5x=22
5x/5=22/5                 ---divide 5 on both sides
x=22/5

6 0
2 years ago
Name another ordered pair that is on the graph
kotegsom [21]

Answer:

(5,30)

Step-by-step explanation:

That is the constant change in the y's as the x's increase by 1?

12 - 6 = 6

18 - 12 = 6

24 - 18 = 6

The common difference is 6 so the next coordinate will be 6 more on the y and 1 more on the x.

(5,30)

4 0
2 years ago
Write and solve the equation and then check your answer. Which statements are true about the equation and its solution? Check
ch4aika [34]

The correct equation is n - 31 = 52

To check the solution, substitute 83 for the variable in the equation

This is an addition problem.

To solve the equation, add 31 to both sides.

Step-by-step explanation:

A number decreased by thirty-one is fifty-two

That means:

  • Subtract 31 from a number
  • The difference equal 52

Assume that the number is n

∵ The number is n

∵ When n decreased by 31 the answer is 52

∴ The equation is n - 31 = 52

The correct equation is n - 31 = 52

∵ n - 31 = 52

- To find n add 31 to both sides of the equation

∴ n - 31 + 31 = 52 + 31 ⇒ addition property

∴ n = 83

-To check the equation substitute n by 83 in the left hand side, the

  answer must be equal the right hand side

∵ Left hand side = 83 - 31 = 52

∵ Right hand side = 52

∴ n = 83 is correct answer

To check the solution, substitute 83 for the variable in the equation

This is an addition problem.

To solve the equation, add 31 to both sides.

Learn more:

You can learn more about solving equation in one variable in brainly.com/question/11306893

#LearnwithBrainly

7 0
3 years ago
Read 3 more answers
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