If given that the area of a square is 121 cm², find the length of one side of the square.
A 30.25 cm
B 11 cm
C 60.5 cm
D 10 cm

She initially placed $6222 in the account.

With annual compound interest accruing at a rate of 4.4% after three years, she has now $7080 in the account.

From the question, we have

7080 = A * (1 + 4.4/100)^3

7080 = A * 1.1379

A = 7080/1.1379

= 6221.99 = $ 6222 (approx.)

Divide:

Divide, in its simplest form, means to divide into two or more equivalent portions, spaces, groups, or divisions. Divide, in plain English, means to provide the entire thing to a group in equal portions or to divide it into equal pieces. Let's say a square is divided into two triangles with equal areas by a diagonal. A division operation may or may not provide an integer as the outcome. The outcome may occasionally take the form of decimal numbers.

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Answer:

there is no value for x since there is no answer for the quetion

Step-by-step explanation:

The pH value of water when the H₃O⁺ is 1.0 x 10⁻⁷ will be 7.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The pH value of any ion is given as,

pH = - log [H₃O⁺]

The ions of H₃O⁺ is 1.0 x 10⁻⁷. Then the pH value is given as,

pH = - log [H₃O⁺]

pH = - log [1.0 x 10⁻⁷]

pH = - log [10⁻⁷]

pH = - (-7) log 10

pH = 7

The pH value of water when the H₃O⁺ is 1.0 x 10⁻⁷ will be 7.

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Answer:

23 is your answer for your question

The standard form of the number  [tex](1.5*10^(13))^2[/tex]  is  2.25×[tex]10^(26)[/tex] .

What is standard form of a number ?

 An equation, an expression, or a set of integers can all be written in standard form using the standard form approach. It is possible to express a number in a way that adheres to certain standards by writing it in its standard form. Standard form refers to any number between 1.0 and 10.0 that may be expressed as a decimal number and multiplied by a power of 10. The term "standard form" in this context refers to the act of condensing a particularly big expanded form of a number.

Here given is ,

=> [tex](1.5*10^(13))^2[/tex]

=> [tex]1.5^2[/tex] × [tex]10^(13)^2[/tex]

=> 2.25×[tex]10^(26)[/tex]

Therefore standard form of the number is  2.25×[tex]10^(26)[/tex].

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Maxwell's pension is $21,278.64.

Given:

Maxwell is a plant manager at NV Electric Company. He has been employed there for 20 years and will be retiring at the end of this year. His pension is calculated on the average of his last 4 years' salaries. In those years, he earned $85,000; $86,756; $88,888; and $94,000.

His employer will credit him 1.2% of that average for each year he worked.

Average = 85000+86756+88888+94000 / 4

= 3,54,644/4

= 88,661

1.2% of average = pension for each year

= 1.2*88661/100

= 106393.2/100

= $1063.932.

she worked for 20 years

20 years pension = 20*1063.932

= $21,278.64

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Answer:

.32, 36/100, and 0.4

Step-by-step explanation:

As per the given graph, the price per gallon at Miguel's Gasoline station is $4.4

Graph:

Graph means a pictorial representation or a diagram that represents data or values in an organized manner.

Given,

Question 6

Six customers are buying gasoline at Miguel's Gasoline Station. The number of gallons bought and the total cost of their purchases are plotted on the graph.

Here we need to find the price per gallon at Miguel's Gasoline Station.

In order to find the price, we have to take the points from the given graph.

Then we the points as, (4,10) and (9, 22)

By looking in the graph, the plotted points will form the straight line on the graph.

So, we have to use the formula for straight line to find the cost on one liter,

For, that we have to find the following,

m = (22 - 10) / (9 - 4)

m = 12/5

And the value of y intercept is,

10 = 12/5 (4) + c

50 = 48 + c

c = 2

The equation for the graph is y = 12/5x + 2

Therefore, the cost of 1 liter of the material is,

y = 12/5 (1) + 2

y = 12/5 + 2

y = 12+10/5

y = 22/5

Therefore, the cost is 4.4.

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The distance between the two points (5,-3,-4) and (-1,-2,7) is:

d = √158

So the correct option is the last one.

The distance between two points (x₁, y₁, z₁) and (x₂, y₂, z₂) is given by:

distance = √( (x₁ - x₂)² + (y₁ - y₂)² + (z₁ - z₂)²)

Here we want to find the distance between the two points (5,-3,-4) and (-1,-2,7), using the above formula we will get:

d =  √( (5 + 1)² + (-3 + 2)² + (-4 - 7)²)

d =  √( (6)² + (-1)² + (-11)²)

d =  √( 36 + 1  + 121)

d = √158

So the correct option is the last one.

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Using the velocity - time graph given, the value of t is 180 seconds

Velocity-time graph is a plot between Velocity and Time. It shows the Motion of the object that moves in a Straight Line. Magnitude of Velocity at a given instant is equal to its Instantaneous Speed. It is drawn for 1-D motion only and can take both positive and negative values.

To calculate speed, distance and time, we can use the formula below

speed = distance / time

Harry walked back home at a constant speed of 2 m/s

This can be represented mathematically as

2 = 150 / t - 105

The value of t in the equation above

150 = 2(t - 105)

150 = 2t - 210

2t = 150 + 210

2t = 360

t = 360 / 2

t =  180 seconds

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Answer:

x = - 1 ± 2[tex]\sqrt{2}[/tex]

Step-by-step explanation:

x² + 2x = 7

solve using the method of completing the square

add ( half the coefficient ot the x- term )² to both sides

x² + 2(1)x + 1 = 7 + 1

(x + 1)² = 8 ( take square root of both sides )

x + 1 = ± [tex]\sqrt{8}[/tex] = ± 2[tex]\sqrt{2}[/tex] ( subtract 1 from both sides )

x = - 1 ± 2[tex]\sqrt{2}[/tex]

An assumption or concept is given as a hypothesis for the purpose of debating it and testing if it might be true.

hence,sample test of means one-sample test of proportions one-sample test of variances two-sample test of means (independent samples) two-sample test of means (paired samples) two-sample test of proportions two-sample test of variances.

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Answer:

x = 70

Step-by-step explanation:

0.04 + 0.015x = 1.09 ( subtract 0.04 from both sides )

0.015x = 1.05 ( divide both sides by 0.015 )

x = 70

The percentage of high school seniors and eighth grade students is the 40% and the 15%.

According to the statement

we have  to find that the percentage of high school seniors and eighth grade students.

For this purpose, we know that the

The percentage is a ratio expressed as a fraction of 100.

And with the given information,

the percentage is the used by the marijuana in the past year.

By the researchers,

the percentage of high school seniors in 2011 is 40%

And

the percentage of eighth grade students is 15%.

So, The percentage of high school seniors and eighth grade students is the 40% and the 15%.

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The x -intercept and y-intercept of the graph 9x + 3y = 18 are x = 2 and y  =6 respectively.

The y-intercept is the point where the graph intersects the y-axis. In other words, the y -intercept of a graph is the point where the graph crosses the y -axis. The y-intercept is the value of y when x = 0.

The x-intercept is where a line crosses the x-axis. In other words, the x-intercept of a line is the point on a graph where the line crosses an axis.

The x-intercept is the value of x when y = 0.

Therefore, let's find x-intercept of the graph

9x + 3y = 18

9x + 3(0) = 18

9x = 18

x = 18 / 9

x = 2

Hence, let's find the y-intercept.

9x + 3y = 18

9(0) + 3y = 18

3y  =18

y  =18 / 3

y = 6

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The equation of the line that passes through the points (6,−2) and (−4,−2) is y = -2

The equation of a line can be represented in different form such as slope intercept form, point slope form, standard form and general form.

Let's represent the equation of the line in slope intercept form as follows:

The equation of the line passes through the points (6,−2) and (−4,−2).

Hence,

y = mx + b

where

Therefore,

m = -2 + 2 / -4 - 6

m = 0 / - 10

m = 0

Therefore, let's find y-intercept using (6, -2).

-2 = 0(6) + b

b = -2

Therefore, the equation of the line is y = -2.

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Step #1:  Find the slope of the given line.

To do this, solve the equation for slope-intercept form:

         x + 2y = 16

               2y = -x + 16

                 y = -1/2 x +8

The slope of this line is -1/2.

Step #2: Find the slope of the new line.

To be perpendicular, the other line needs a slope that is the opposite reciprocal slope.  So, that'd be +2/1 or just 2.

Step #3: Find n.

Now, you know m=2 and we also have the slope formula

         m = (y2 - y1) / (x2 - x1)

Using the two points (-9,n) and (1,5n), we can set up:

         2 = (5n - n) / (1 - (-9))

         2 = 4n / 10

         2 = 2n/5

Multiply by 5 and divide by 2:

         10 = 2n

         5 = n

The process was: find the slope of the given line, use that to find the slope of the perpendicular line, and then use and the slope formula to find n.

Using the test statistic formula, the test statistic is 7.3408.

In the given question,

We have to testing a claim about a population proportion of 0.2.

We have to find the test statistic given the following sample results:

Success (x) : 89

Sample Size (n) : 225

So estimation point,

p = x/n

p = 89/225

p = 0.396

We have to check the test hypothesis for:

H(0): P = 0.2

H(a): P > 0.2

Test Statistic Z = (p - P)/√P(1-p)/n)

Z = (0.396 - 0.2)/√(0.2(1-0.2)/225)

Z =0.196/√(0.2*0.8/225)

Z =0.196/√(0.16/225)

Z =0.196/√0.000711

Z =0.196/0.0267

Z = 7.3408

Hence, the test statistic is 7.3408.

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[tex]\begin{cases} x=-4\implies &x+4=0\\\\ x=6\implies &x-6=0 \end{cases}\qquad \implies (x+4)(x-6)=\stackrel{y}{0} \\\\\\ (x^2-2x-24)=\stackrel{y}{0}\implies 4(x^2-2x-24)=\stackrel{y}{0}\implies {\Large \begin{array}{llll} 4x^2-8x-96=y \end{array}}[/tex]

Check the picture below.

Answer: No

Step-by-step explanation: Ratios can be expressed as fractions. The ratio of 4:3 = 4/3, and 18:15 = 18/15. If you multiply the numerator and denominator by 5 (to get the same denominator as 18/15), you get 20/15.

20/15 doesn't equal 18/15.

There are many ways Julio can roll the ball to reach it target. We can evaluate this situation by using probability.

Hence, we can evaluate the outcome by using probability.

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1. A = 45°         B = 110°

2. B = 88°        C = 44°

3. A = 59°        B = 48°        C= 73°

4. The measure of the exterior angle is 108°

5. The tornado's direction needs to change by 30°

The sum of interior angles of triangle is always equal to 180°.

Now let's apply it in the given questions.

1. A = x

B = x + 65

C = 25

So, x + x + 65 + 25 = 180

2x = 180 - 90

x = 90/2

x = 45°

2. x + 48 + x - 44 = 180

2x = 180 - 4

x = 176/2

x = 88°

3. x + 73 + x - 11 = 180

2x = 180 - 62

x = 118/2

x = 59°

4. Let the third interior angle be b.

2a + b = 180

b = 180 - 2a

now by applying angle sum property

a + 10 + 44 + 180 - 2a = 180

2a - a = 54

a = 54°

the exterior angle is 2a that is 54*2 = 108°

5. For the tornado to deviate and pass through radar station instead of cell phone tower the angle that needs to be made will be nothing but the third interior angle of the triangle as the tornado is at the vertex.

Let us suppose the angle to be y

so y + 75 + 75 = 180

y = 180 - 150

y = 30°

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Given that a line has a y-intercept of 3 and an x-intercept of 4

The equation of the line is 4y−12=3x.

The line has an x-intercept at x=−4 and y intercept at y=3, this means that the line passes through the points (−4,0) and (0,3).

Now we find the slope m of the line passing through the points (−4,0) and (0,3)  (x-intercept).

The slope of the line is:

[tex]m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}} = \frac{3-0}{0-(-4)} = \frac{3}{4}[/tex]

Point-Slope Formula:

y−y1=m(x−x1) where m is the slope and (x1,y1) is the given point.

Now substituting the values:

[tex]y-0 = \frac{3}{4} (x-(-4))[/tex]

[tex]y = \frac{3}{4}(x+4)[/tex]

[tex]4y = 3(x+4)[/tex]

[tex]4y = 3x + 12\\4y-12 = 3x[/tex]

Hence, the equation of the line is 4y−12=3x.

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Answer:

Micheal is 13

Jessica is 39

Step-by-step explanation:

3M=J

J-26=M

J=M+26

3M=M+26

2M=26

M=13

3(13)=J

39=J

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The answer is, 720 minutes ahead of clock b will clock a be 48 hours later.

How to read time?

The three hands on the clock's face display the time in hours, minutes, and seconds. The hour hand, minute hand, and second hand all display the hours, minutes, and seconds respectively.

A clock has 12 large divisions that are marked. Each of the large divisions has five smaller divisions. For a minute, the little separation remains in place. Five minutes have elapsed once the minute hand transitions from one large division to the next.

we will get after 360 hrs, clocks A and B will both have the same time.

Clock A will show the correct time, whereas clock B will be running faster by 12 hrs and therefore show the same time. A clock that moves forward by 12 hours will appear to display the same time once more. 12hours*60minutes/hour= 720 minutes.

Hence the answer will be 720 minutes.

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For a two-tailed test, the p-value is the probability of obtaining a value for the test statistic at least as unlikely as or more unlikely than that provided by the sample.

What is two tailed test ?

In statistics, a two-tailed test is a procedure that determines whether a sample is greater than or less than a specific range of values by using the critical area of a distribution that is two-sided.

Main body:

Hence the p-value is the probability of obtaining a value for the test statistic at least as unlikely as or more unlikely than that provided by the sample.

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Answer:

x=31.5

Step-by-step explanation:

30x+1616=2561

30x=2561-1616

30x=945

x=31.5

anwser

4

Step-by-step explanation:

17

Answer:

1,330.46

Step-by-step explanation:

v=h times pie times r squared.

since the diameter is 11 the radius is 5.5.

5.5x14=77

Now multiply that by pie and your answer is

1,330.46

Answer: 1330.46cm³

Step-by-step explanation:

The equation for a volumne of a cylinder is πr²h (r=radius h=height)

The radius is half of the diameter so the radius is 5.5

πx5.5²x14=1330.46