CAN YALL HELP IM IN CLASSS PLEASE

Answer:

7.25

Step-by-step explanation:

Given :

___________ Sample size __ sample mean

Treatment 1 ____ 5 _______ 4

Treatment 2 ____ 10 ______ 8

Treatment 3 ____ 5 _______ 9

Sample size = (5 + 10 + 5). = 20

Overall mean = ((5*4). + (10*8) + (5*9)) / 20

Overall mean = (20 + 80 + 45) / 20

= 145 / 20

= 7.25

Answer:

3/8 kg of tomatos

Step-by-step explanation:

1/4 * 2 = 2/8

2/8 + 3/8 = 5/8

1 - 5/8 = 3/8

The amount of tomatoes was left to the mother in kilograms will be 0.375 kilograms.

Algebra is the study of mathematical symbols, and the rule is the manipulation of those symbols.

Mother has 1 kg of tomatoes.

She gave 1/4 to aling nena and 3/8 to aling ana.

Then the amount of tomatoes was left to the mother in kilograms will be

Let x be the amount of tomatoes.

x = 1 - 1 × 1/4 - 1 × 3/8

x = 1 - 0.25 - 0.375

x = 1 - 0.625

x = 0.375 kilograms

More about the Algebra link is given below.

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Answer:

51.04

Step-by-step explanation:

Answer:

A) endothermic process in which energy is absorbed

Step-by-step explanation:

A thermochemical reaction equation is a chemical reaction equation in which the enthalpy of reaction is written after the symbols of reactants and products.

The importance of thermochemical reaction equations is that they show us whether energy was absorbed or evolved in a reaction as well as the magnitude of energy absorbed or evolved.

When the enthalpy of reaction is positive, the reaction is endothermic and energy is absorbed. When the enthalpy of reaction is negative, the reaction is exothermic and energy is evolved or released.

The enthalpy of the reaction  I + I → I2 + 35 kcal is positive hence the reaction is an endothermic process in which energy is absorbed.

The equation shows that the formation of an iodine molecule is an A. endothermic process in which energy is absorbed.

It should be noted that an endothermic process is where heat is transferred from the surroundings to the systems. In this case, the system has gained heat from the surroundings.

The change in enthalpy, delta H is positive for an endothermic process. When the enthalpy of reaction is positive, the reaction is endothermic and energy is absorbed. The enthalpy of the reaction is positive as illustrated in this case.

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Answer:

3 and -3

Step-by-step explanation:

For 3  and -3  [tex]x^{2}[/tex]+ 3  has same answer

Answer:

9) x= 1/2

11)= 1 2/3

13)1 1/5

15) x=2

17)x=6

19) -2 1/7

21)1/2

You can use mat hway for these alegbra qustions

Answer:

-3

Step-by-step explanation:

Answer:

the slope is 3

Step-by-step explanation:

y values increase by 3 for every increase in x by 1 as shown from the x and y axes. therefore it is 3

Answer:

A

Step-by-step explanation:

Add 8 from the middle row, then two from the one after that. then add the last one there and there ya go.

Answer:

240

Step-by-step explanation:

hello! i'm assuming you need to find the area, so you would need to multiply 20 and 12. Hope this helped and have a nice day/night!

- Holl ^^

A rectangle is a two-dimensional shape where the length and width are different.

The area of a rectangle is given as:

Area = Length x width

The area of the living room wall = The area of the rectangle

The amount of paint needed to cover one wall is 240 square feet.

A rectangle is a two-dimensional shape where the length and width are different.

The area of a rectangle is given as:

Area = Length x width

Example:

The area of a rectangle with length 2cm and width 3cm is 6cm².

We have,

A living room wall is 20 feet long, and 12 feet high.

The living room can be considered a rectangle.

Length = 20 feet

Width = 12 feet

The area of the living room wall = Area of a rectangle

Now,

Area of the living room wall.

= 20 x 12

= 240 square feet

Thus,

The amount of paint needed to cover one wall is 240 square feet.

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x+10/(x+9)(x-2).(3x-6)(x-2)/3(x+10)

3(x-2)/3(x+9)(x-2)

1/x+9

A

Step-by-step explanation:

(1.7×8.0)/3.4 ×10^23-14-23

=4×10^-14

Answer: 30 people

Step-by-step explanation: 250+5x< or = 400. 5x< or = 150. x=30

Answer:

Gym A is growing faster

Gym A gained 13 members between months 2 and 4

Gym B gained 10 members between months 2 and 4

Step-by-step explanation:

Gym A:  (2,20) (4,46)

rate of change = (46-20)/(4-2)  =  26/2 or 13

Gym B:  (2,40) (4,60)

rate of change = (60-40)/(4-2)  =  20/2 or 10

Answer:

6 times the value of 3,117 plus 724

Step-by-step explanation:

Hope that helps :)

Answer:

The answer is A, a total of 12 students spend 31 or more hours online per month.

Step-by-step explanation:

From the hours of 31 to 65 there are twelve students.

Answer:

Get a ruler

Step-by-step explanation:

I can't really answer this because it's a measuring problem.

But I'll walk you through it.

First, grab your ruler. Once you have it, you're gonna measure the icon, so the  square picture. Make sure you measure it in centimeters (cm). Measure EACH side. Once you have the measurement of each sides, add them up to get your perimeter. The perimeter will always be length + width + length + width.

To find the area, take your length and your width and multiply them together.

For the second problem, you're going to take your measured side and multiply EACH of them by 2.5. The scale 1 cm = 2.5 mm means that for every represented centimeter in the image, the actual image is 2.5 mm. Once you have multiplied each sides by 2.5, you're going to repeat the steps above to get the perimeter and the area.

Answer:

7/21 x 10/20

1/3 x 1/2 = 1/6

Step-by-step explanation:

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.

probability of picking a white marble first = total number of white marbles / total number of marbles = 7/21

probability of picking a green marble second = total number of green marbles / total number of marbles = 10/20

7/21 x 10/20

1/3 x 1/2 = 1/6

Answer:

x - 1.7 = 14

Step-by-step explanation:

Sarah thought of a number: x

Then she subtracted 1.7 FROM it: x - 1.7

and gets an answer if 14: x - 1.7 = 14

so the equation is x - 1.7 = 14

Answer:

-3/ (2x√x)

Step-by-step explanation:

y=3/√x

y= 3x^(-½)

y'= -3/2 x^(-3/2)

= -3 / (2x√x)

Answer:

There are 3 of them

Step-by-step explanation:

Answer:

it's in the hundredths and tens and thousandths and it's a 9 aka an upsidedown 6

Step-by-step explanation:

Answer:

x =  ∠BCF+ ∠FCG

Step-by-step explanation:

According to the given measure, we can say that, line Fc bisects  ∠BCF and  ∠FCG and the sum of  ∠BCF and  ∠FCG is  ∠BCG. Mathematically;

∠BCF+ ∠FCG =  ∠BCG

Given

∠BCG = 60degrees

∠FCG = 35degrees

Let x be equal to  ∠BCG

Hence the required equation will be;

∠BCF+ ∠FCG =x

Swap sides

x =  ∠BCF+ ∠FCG

Answer:

the Median is 6.5

Step-by-step explanation:

......

0.52

0.125

You just need to divide the numerator and denominator. ^^

Answer:

z = 12

Step-by-step explanation:

z - 5 = 7

z = 7 + 5

z = 12

hope that helped

Answer:

$140,000

Step-by-step explanation:

Paso 1

Si a una persona le deben 7/9 de $ 450,000

La cantidad que se le debe a la persona se calcula como:

7/9 × $ 450,000

= $ 350,000

Paso 2

Solo se cancela 3/5 de esa deuda.

El monto de la deuda que se cancela se calcula como:

3/5 × $ 350,000

= $ 210,000

Paso 3

Por lo tanto, la cantidad de dinero que debe se calcula como:

$ 350,000 - $ 210,000

= $ 140,000

Answer:

[tex]Diagonal \ of \ cuboid =\sqrt{ l^2 + b^2 +h^2} = \sqrt{121+25+49} = \sqrt{195}[/tex]

option D

Answer:false

The answer is false because 1/6 is not the same as 6/12

Given:

[tex]L=2\dfrac{1}{2}[/tex] ft and [tex]W=3\dfrac{2}{5}[/tex] ft.

[tex]P=2L+2W[/tex]

To find:

The value of P.

Solution:

We have,

[tex]P=2L+2W[/tex]

Substituting [tex]L=2\dfrac{1}{2}[/tex] and [tex]W=3\dfrac{2}{5}[/tex], we get

[tex]P=2\times 2\dfrac{1}{2}+2\times 3\dfrac{2}{5}[/tex]

[tex]P=2\times \dfrac{2(2)+1}{2}+2\times \dfrac{3(5)+2}{5}[/tex]

[tex]P=2\times \dfrac{5}{2}+2\times \dfrac{17}{5}[/tex]

[tex]P=5+\dfrac{34}{5}[/tex]

Taking LCM, we get

[tex]P=\dfrac{5(5)+34}{5}[/tex]

[tex]P=\dfrac{25+34}{5}[/tex]

[tex]P=\dfrac{59}{5}[/tex]

[tex]P=11\dfrac{4}{5}[/tex]

Therefore, the value of P is [tex]11\dfrac{4}{5}[/tex] ft.