Please help, I'm lazy.

Answer:

OMG️️

Step-by-step explanation:

What is this❓

what have you wrote✍️

Answer:

hye nice what have written tell then I will answer you.

To find the concentration of H+ or H3O+ ions ([H+] or [H3O+]) given a pH value , you can use the formula:

[H+] = 10^(-pH)

Let's calculate the values for two different pH values: pH = 4.0 and pH = 4.8.

For pH = 4.0:

[H+] = 10^(-4.0)

[H+] ≈ 1 × 10^(-4)

Therefore, the concentration of H+ ions ([H+]) at pH 4.0 is approximately 1 × 10^(-4) or 0.0001.

For pH = 4.8:

[H+] = 10^(-4.8)

[H+] ≈ 1.6 × 10^(-5)

Therefore, the concentration of H+ ions ([H+]) at pH 4.8 is approximately 1.6 × 10^(-5) or 0.000016.

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The equation 22 = -13 + a gives the value a = 35.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 - 8 is an equation.

We have,

22 = -13 + a

Add 13 on both sides.

22 + 13 = a

a = 35

Thus,

The value of a is 35.

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Answer:

<S = 72 degrees

Step-by-step explanation:

Your first step you need to do is find what x is.

As the lines on the shape shows, angle S is congruent to angle Q so you would have to write the expression 4x + 12 = 5x - 3.

Try to get rid of the smaller coefficient which is 4x. So subtract 4x - 4x and 5x - 5x. This would leave you with 12 = x - 3. (Remember 1x = x)

Try to get the variable alone so add 3 to the constants, so -3 + 3 and 12 + 3 which leaves you with 15 = x.

Now all you need to do is replace the x in the angle S expression.

4(15) + 12 = ?

4 * 15 = 60

Then 60 + 12 = 72 degrees.

If you want to check your answer, remember that angle S is equal to angle Q, which you can do as 5(15) - 3 which also equals 72 degrees.

Answer:

Step-by-step explanation:

1. -42

2. 6

3. -9

4. 545

5. 145

6. -183

7. -46

8. -15

9. -92

10. -111

IF AB=3x, BC=x+5 and AC=24 then the midpoint of AC is point B.

Midpoint, as the word suggests, means the point which lies in the middle of something. Midpoint of a line segment means a point which lies in the mid of the given line segment.

WE have given that AB=3x, BC=x+5 and AC=24. Since B is the midpoint, then we have:

AB = BC = AC/2

Now Substitute and solve for x:

AB = BC

x + 5 = 3x

x + -3x = -5

2x = 5

x = 5/2

AB = 3(5/2) = 15/2

BC = x + 5 = 5/2 + 5 = 15/2

Hence, the midpoint of AC is point B.

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Answer:

Perimeter= 34a

Area= 42a

Step-by-step explanation:

Perimeter: 3a + 3a + 3a+ 3a +3a + 5a +5a + 9a = 34a

Area: (3a x 9a) + (3a x 5a) = 42a

True. Paired samples t-tests are used to compare the means of two related groups, such as a group of individuals tested before and after an intervention or treatment (pretest and post-test).

matched examples When comparing the means of two related groups, t-tests are a type of hypothesis test that pairs up each subject in one group with a subject in the other. The same group of people is assessed twice in a pretest-posttest design—once before and once after an intervention or treatment.
Paired samples t-tests do look at one group of individuals tested twice, such as with a pretest and post-test. This type of t-test is used to compare the means of the two related samples and analyze the difference between the two testing instances.

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I cant see any question on the attachment it is just a black screen

If BD = 3, then it means that CD is also equal to 3 by definition of Isosceles triangle.

We are given a triangle with the condition that BA ≅ CA. This means that side BA has a length equal to that of side CA.

Now, an Isosceles triangle is defined as a triangle that has at least two sides of equal length. This means that the given triangle ABC is an Isosceles triangle.

Now, since Triangle ABC is an Isosceles triangle, it means that when we draw a perpendicular line through the point joining the two equal sides, it bisects the third side of the triangle.

Thus, it means that BD is congruent to CD.

If BD = 3, then it means that CD is also equal to 3 by definition of Isosceles triangle.

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Answer: 60 passengers

Step-by-step explanation: i got it right on edge

Answer:

your answer is 60

Step-by-step explanation:

i got it correct

Since Sophie can grade 11 papers per hour

Since she worked for 5 hours, then

Multiply 11 by 5 to find the number of the graded papers

Since the total number of papers is 86, then to find the number of the remaining papers subtract 55 from 86

There were 31 paper Sophie has to grade after working 5 hours

6,438,593

The answer would be: 6,439,000

5 or higher gets the next number to round up meaning that because of the 5 in 593 would make the 8 in the thousands place round up to 9.

Glad I could help! (:

Answer:

15

Step-by-step explanation:

Answer:

63.6 m^2

Step-by-step explanation:

A = (pi)r^2

r = d/2 = 9 m / 2 = 4.5 m

A = (3.142)(4.5 m)^2

A = 63.6 m^2

Answer:

a is to be as b as 1 is to 3 (a:b as 1:3)

Step-by-step explanation:

Answer:

176800 per year

Step-by-step explanation:

There are 52 weeks in 1 year

3400 per week * 52 weeks per year

176800 per year

Answer:

$176,800

Step-by-step explanation:

3400 x 52 = 176,800

Answer:

TRUE

Step-by-step explanation:

(2x^2-5x-3)/(x-3) = (2x+1)

(2x^2)/(x-3) - (5x)/(x-3) - 3/(x-3) = (2x+1)

 [separated each term on the left side]

(2x^2)- (5x) - 3 = (2x+1)(x-3)

2x^2- 5x - 3 = (2x+1)(x-3)

(2x+1)*(x-3) = (2x+1)(x-3)

Both sides are the same.  The equation is TRUE.

Step-by-step explanation:

here is the answer attached

Answer:

14

Step-by-step explanation:

Substituting a = 3 and b = 5 into the expression

3² + 5 = 9 + 5 = 14

y= √x

Identify the equation of the function.

y= √-1+3

Answer:

b. y = square root x

Step-by-step explanation:

Answer:

1.47070788E36

Step-by-step explanation:

Answer:

Step-by-step explanation:

Sample Space

off  even numbers

= {2,4,6,8,10}.

There are 5 outcomes in the sample space,

The probability that a flight between New York City and Chicago is between 125 and 140 minutes is 50%.

To find the probability that a flight is between 125 and 140 minutes, we need to calculate the proportion of the total possible outcomes that fall within that range.

The total range of possible flight times is 150 - 120 = 30 minutes.

The range of interest is 140 - 125 = 15 minutes.

Therefore, the probability is given by the ratio of the range of interest to the total range:

Probability = (Range of interest) / (Total range) = 15 / 30 = 0.5.

So, the probability that a flight is between 125 and 140 minutes is 0.5 or 50%.

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--The given question is incomplete, the complete question is given below " The time to fly between New York City and Chicago is uniformly distributed with a minimum of 120

minutes and a maximum of 150 minutes. What is the probability that a flight is between

125 and 140 minutes?"--

The correct conclusions about the triangle reflections are -

        {y} - axis.

        {x} - axis.

In statistics, a quartile is a type of quantile which divides the number of data points into four parts, or quarters, of more-or-less equal size. The data must be ordered from smallest to largest to compute quartiles.

Given is the boxplot as shown in the image.

From the box - plot, we can write the results as -

Therefore, We c

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The transformation undergone by the triangle is: a horizontal translation by 4 units to the right

There are different types of transformations of shapes in geometry such as:

Translation

Reflection

Rotation

Dilation

Now, we are told that the triangle was moved by 4 units to the left.

We know that translation in transformation simply means moving an object from one point to another without any of the dimensions being affected and as such, we can easily say that:

The transformation undergone by the triangle is a horizontal translation by 4 units to the right

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A function f such that f '(x) = 3x^3 and the line 81x + y = 0 is tangent to the graph of f is f(x) = 3x^4/4 + 729/4.

In the given question, we have to find a function f such that f'(x) = 3x^3 and the line 81x + y = 0 is tangent to the graph of f.

The given function is f'(x) = 3x^3.

No integrating on both side,

f(x) = \(\int3x^3dx\) + C

f(x) = 3x^4/4 + C

As given, the line 81x + y = 0 is tangent to the graph of f.

So, slope at point of tangent; f'(x) = -81

So, 3x^3 = -81

Divide by 3 on both side, we get

x^3 = -27

Taking cube root on both side, we get

x = -3

So putting the value of x in 81x + y = 0, we get

y = 243

Thus, f(x) passes through (-3, 243).

So, 243 = 3/4(81) + C

Multiply by 4 on both side, we get

972 = 243 + 4C

Subtract 243 on both side, we get

4C = 729

Divide by 4 on both side, we get

C = 729/4

So, f(x) = 3x^4/4 + 729/4

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The statement which is true about the box plot for the provided data set is that the box will go from 44 to 64.

Box plot is the way of representation of data which gives the graphical image of the data set to understand better.

The minimum and the maximum values in the box plot is plotted at the end points.

The values of the data set is given as,

The statement is true of the box plot of this data set has to be find out.

In a box plot, the quartile is the limit of the box plot. The values can be go from the upper quartile to the lower quartile in a box plot.

Here, the upper quartile of the box plot is 64 and the lower quartile of box plot is 44. Thus, it can go only from 44 to 64.

Hence the statement which is true about the box plot for the provided data set is that the box will go from 44 to 64.

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The value of the missing number to complete the linear equation are 31 and -10 respectively.

What is Algebraic expression ?

Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.

Here the given tables shows the coordinates of the linear equation and to find the equation  we consider any two points let suppose the those two points be (0,-10) and (1,21).

Now using slope formula to find the slope of line m :

m = (y₂-y₁)/ (x₂-x₁)

m = (21-(-10))/(1-0)

m = 31

Let us first find the equation of the line using point-slope equation of line :

(y-y₁) = m(x-x₁)

Substituting all the values in above equation to get the equation of line :

(y-(-10)) = 31(x-0)

(y+10) = 31x

y = 31x - 10

Therefore, the value of the missing number to complete the linear equation are 31 and -10 respectively.

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Answer:

18 = m

Step-by-step explanation:

2=m/2-7

Add 7 to each side

2+7=m/2 - 7+7

9 = m/2

Multiply each side by 2

9*2 = m/2 * 2

18 = m