Sam is using the expression m/8n in class. what is the value of the expression when m = 4 and n = 1/2?

Answer:

(18x845h)(6)n

=1085hnx84

Complete question is in comment section :

Answer:

68%

Step-by-step explanation:

Mean = 25

Standard deviation = 5

The percentage of trees between 20 and 30

20 trees = 1 standard deviation below the mean ; mean - 1(standard deviation)

25 - 5 = 20

30 trees = 1 standard deviation above the mean ;

Mean + 1(standard deviation) ;

25 + 5 = 30

This means, 20 and 30 lies ±1 standard deviation from the mean which according to the empirical rule is 68%

According to the empirical rule :

Answer:

by using substuton method

2x=22-y

x=22-y/2                     equation (i)

so substuting the value x in x-y=5

22-y/2-y=5

22-y-2y/2=5

22-3y=10

22-10/3=y

12/3=y

4=y

now substitute the value of y in equation (i)

x=22-y/2

=22-4/2

=18/2

=9

therefore ,the value of x is 9 and y is 4

Step-by-step explanation:

Answer:

÷3

Step-by-step explanation:

&$#*×&×$;$:$&;%%:#,¿×€$:%

Answer:

A

Step-by-step explanation:

when doing algebra like this, you need to isolate the variable using its reverse operation. For + its -.  For - its +. For * its /. For / its *.

Answer:

y^2

Step-by-step explanation:

you just subtract 3 from 5

Answer:

Step-by-step explanation:

Answer:

you are absolutely correct .........

Answer:

i belive the answer is 3/14

Step-by-step explanation:

I could be wrong

Answer:

4/14 or 2/7

Step-by-step explanation:

there are 3 red pens, 4 blue, and 7 black

add those numbers to get the total (14 pens) then take the blue pens (4) to make the fraction 4/14 (4 blue out of 14 pens total). Then simplify the fraction.

Answer:

17.6 laps

Step-by-step explanation:

Total distance to be covered = 2 miles

distance coved in each lap = 400 yards

We know that 1 mile = 1760 yards

therefore, 4 miles will make = 4×1760

= 7040 yards.

Number of laps to be taken

= Total distance to be covered ÷ distance coved in each lap

= 7040/400 = 17.6 laps

Therefore, it would take 17.6 laps to cover a distance of 4 miles if lap were 400 yards.

Answer:

C

Step-by-step explanation:

Answer:

87.2º

Step-by-step explanation:

Complimentary angles total 90º

c + 2.8 = 90

c = 90 - 2.8

c = 87.2º

Answer:

Step-by-step explanation:

When angles are complementary, it means that they both add up to 90°.

In this case, one of the angles measures 2.8°.

So, to find the other one, we subtract 2.8 from 90.

90 - 2.8 = 87.2

The measure of the complementary angle is 87.2°

I hope this helps! I would really appreciate it if you would please mark me brainliest! Have a blessed day!

Answer:

Step-by-step explanation:

The meaning of the slope of the line of best fit for the graph of the data is that for each month the balance in the Saving account is increasing at a constant rate.

A slope also known as the gradient of a line is a number that helps to know both the direction and the steepness of the line.

The meaning of the slope of the line of best fit for the graph of the data is that for each month the balance in the Saving account is increasing at a constant rate.

Learn more about Slope of Line:

https://brainly.com/question/14511992

#SPJ2

Answer:

Empty Set: The empty set (or null set) is a set that has no members. Notation: The symbol ∅ is used to represent the empty set, { }.

Step-by-step explanation:

plss do me brainlest

Answer:

20

Step-by-step explanation:

To find the perimeter of a shape, you have to add all the sides together. Since this is a square, this means that all the sides are the same. If one side is 5, that means that all the other sides are 5 as well. So you will have to do 5+5+5+5 or 5 x 4.

Answer:

sure

Step-by-step explanation:

Answer: -9

Step-by-step explanation:

Given

The sum of a number and two is equal to negative 7

Suppose x is that number

[tex]\therefore x+2=-7\\\text{add -2 both sides}\\\Rightarrow x+2-2=-7-2\\\Rightarrow x=-9[/tex]

So, the number is [tex]-9[/tex].

Answer:

d should be correct

Step-by-step explanation:

Answer: convert 70/100 to a decimal

70 divided by 100 is gonna give us 0.7

The Answer is gonna be 0.7

This is the right Answer :3

I hope you are having a great day :3

Explanation :

70/100

=7/10

=0.7

Answer:

0.7

Step-by-step explanation:

Given:

70/100

7/10

0.7

Answer:

It should be 384^2

Step-by-step explanation:

Answer:

384 unit^2

Step-by-step explanation:

SA = 2(lw + wh + hl)

     = 2(8x8 + 8x8 + 8x8)

     = 2(64 + 64 + 64)

     = 2(192)

     = 384

Hope it helps!

Answer:

22

Step-by-step explanation:

21.962962963

Estimated: 22

Hope it helps plz give brainliest! :D

Answer: 15 units

Step-by-step explanation:

Given

The endpoints of the line segment are [tex](-7,10)\ \text{and}\ (-6,-5)[/tex]

The length of the line segment is given by the distance formula i.e.  

[tex]d=\sqrt{\left( x_2-x_1\right)^2+\left( y_2-y_1\right)^2}[/tex]

Insert the values,

[tex]\Rightarrow d=\sqrt{\left( -6+7\right)^2+\left( -5-10\right)^2}\\\Rightarrow d=\sqrt{1^2+\left( -15\right)^2}\\\Rightarrow d=\sqrt{1+225}\\\Rightarrow d=15.0\ \text{units}[/tex]

Therefore, the length of line segment TU is 15 units

Answer:

-7

Step-by-step explanation:

Given data

Tina's problem is

-16 - (-9)

Firstly let her open up the bracket

Note - * -= +

-16+9

Secondly, Rearrange

9-16= -7

Hence the answer is -7

Answer:

the awnser would be a I'm pretty sure

Step-by-step explanation:

make the other side the same ones so like take the bottom 8 and duplicate it to the top. do the same thing with the 6 but put it on the left side. and then combine 12 + 18 and there you go.

Answer:

D) 122

E) 30

F) 28

Step-by-step explanation:

Angle D:

value of angle across is equal to angle D = 122

Angle E:

value of angle across is equal to angle E = 30

Angle F:

180 - 122-30

Answer:

D) 122

E) 30

F) 28

Step-by-step explanation: