Round off 3. 55 to one significant figure

Answers

Answer 1

Answer:

3.6

Step-by-step explanation:

We must first clarify how a number is rounded.

To round a number to unity we have to look at the first number after the comma.

If this number is less than 5 (1, 2, 3, 4) we should not do anything, but if that number is 5 or greater (5, 6, 7, 8, 9) we must add a unit to the number.

That is to say:

<5 do nothing

=> 5 round to the next number (+1)

So in the case of 3.55 it would be.

3.55 = 3.6


Related Questions

PLEASE HELP!!!!

Find the greatest common factor. 5x^2a+5xa^2

Answers

The greatest common factor of the expression 5x²a + 5xa² is 5xa

How to find greatest common factor of 5x²a + 5xa²?

To find the greatest common factor (GCF) of the expression 5x²a + 5xa², we need to find the greatest term that can divide into both terms in the expression.

In this case, the GCF is 5xa, as it can divide into both 5x²a and 5xa².

We can check this by dividing both terms with 5xa:

5x²a + 5xa² = (5xa)(x) + (5xa)(a) = 5xa (x + a)

Thus, the GCF of 5x²a + 5xa² is 5xa.

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PLEASE ANSWER - PLEASE ANSWER
The diagram shows triangle ABC. ABC and BED are straight lines. AB = 12.2cm, CD = 5.8cm, BE:ED = 3:1, Angle ADB = 90°, Angle ABD = 38°.
Work out the size of angle DCE, correct to 1 decimal place. SHOW ALL WORKING IN TEXT FORM, NO IMAGES.

 PLEASE ANSWER - PLEASE ANSWER The diagram shows triangle ABC. ABC and BED are straight lines. AB = 12.2cm,

Answers

The measure of angle DCE in this problem is given as follows:

m < DCE = 22.5º.

How to obtain the measure of angle DCE?

The triangles in this problem are right triangles, meaning that the trigonometric ratios are used to find the measures.

The three trigonometric ratios are given as follows:

Sine of angle = length of opposite side divided by the length of the hypotenuse.Cosine of angle = length of adjacent side divided by the length of the hypotenuse.Tangent of angle = length of opposite side divided by the length of the opposite side.

The segment DB is adjacent to angle of 38º, while the hypotenuse is of 12.2 cm, hence the length of segment DB is calculated as follows:

cos(38º) = DB/12.2

DB = 12.2 x cosine of 38 degrees

DB = 9.6 cm.

BE:ED = 3:1, means that segment DE is one-fourth of segment DB, and thus it's length is given as follows:

DE = 1/4 x 9.6

DE = 2.4 cm.

Then for the angle DCE, we have that the opposite side is of 2.4 cm while the adjacent side is of 5.8 cm, hence the tangent is used to find it's measure, as follows:

tan(x) = 2.4/5.8

x = arctan(2.4/5.8)

x = 22.5º

m < DCE = 22.5º.

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Answer:

x = 22.5°

Step-by-step explanation:

BD = cos(38)*12.2 = 9.61

DE = 9.61*¼ = 2.4

∠DCE = tan(2.4/5.8) = 22.5°

Create an inequality to describe the possible values for the total area, A, in square feet of your green section.

Create an inequality to describe the possible values for the total area, A, in square feet of your green

Answers

The Area of triangle represented using inequality is A ≤  48.67 \(ft^{2}\).

What is Area of triangle?

The area of a triangle is half the product of its base and height.

i.e., Area of triangle= \(\frac{1}{2} * b* h\)

Given, b= 6.2 feet and h= 15.7 feet

Area of triangle= \(\frac{1}{2} * b* h\)

                          = 0.5 x 6.2 x 15.7

                          = 48.67 \(ft^{2}\)

The inequality will be: Area of triangle, A≤  48.67 \(ft^{2}\)

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Finding the volume of the solid.Use unit cubes to help.

Finding the volume of the solid.Use unit cubes to help.

Answers

Answer:

the answer is 125. if you cut them slice to slice you'll get 25 because of there five slices of 25 all you got to do is 25 x 5 and you'll get 125.

Hope this help

Have a nice day :)

Given that p(x)=2(5−x)2+1 , what is the value of p(-4)? Responses

Answers

Answer:

37

Step-by-step explanation:

x=-4

=2(5-(-4)2+1

=2(5+4)2+1

=2(9)2+1

=18(2)+1

=36+1

=37

Please help with this math question!

Please help with this math question!

Answers

Answer:

\(2000 {(1 + \frac{.07}{12}) }^{5 \times 12} = 2835.25\)

What is the sine of Ø?
Please help I've been stuck!

What is the sine of ? Please help I've been stuck!

Answers

Answer:it means nothing i think

Step-by-step explanation:ive never seen that and im doing well in math so i dont think it means anything

Which is the mean? a density curve that models the distribution of a quantitative variable shown here. identify the location of the mean and median by letter. justify your answer.

Which is the mean? a density curve that models the distribution of a quantitative variable shown here.

Answers

The location of the mean and median by letter are C and B, respectively

How to identify the location of the mean and median by letter?

The given parameter is the density curve that models the distribution of a quantitative variable

From the density curve, we can see that:

The density curve is a right-skewed distribution

In a right-skewed distribution, the median is the middle line and the mean is to the right of the median

This means that

Median = B

Mean = C

Hence, the location of the mean and median by letter are C and B, respectively

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help please i need helpp​

help please i need helpp

Answers

I think it’s 28,800 I’m not sure but I think if I’m wrong sorry

which number line shows the following number plotted correctly -0.5,7/4,0.75,-9/4

which number line shows the following number plotted correctly -0.5,7/4,0.75,-9/4

Answers

D, Because there are two negative numbers must be before zero and three positive numbers must be after zero so the right answer is D i'm sure

-0.5 is between -1 and 0

7/4 = 1.75 is between 1.5 and 2

0.75 is between 0 and 1

-9/4 = -2.25 is after -2

1.25 is between 1 and 1.5

Change 5 3/4 into an imporper fraction

Answers

Answer:

23/4

Step-by-step explanation:

you keep the 4 were it is at. Then you multiply 4 and 5 which is 20. then you add 3 by 20.

pls pls pls help asap

pls pls pls help asap

Answers

Answer:

1/2(-1.4m+0.4)=-0.7m+0.2

1. 18x^3-2x^2+4x-1
1.1 How many terms are in 18x^3-2x^2+4x-1​

Answers

The polynomial 18x³ - 2x² + 4x - 1 consists of four terms.

The number of terms in a polynomial helps when performing operations like simplification, factoring, or evaluating expressions.

The polynomial 18x³ - 2x² + 4x - 1 consists of four terms.

In order to determine the number of terms in a polynomial, we count the number of distinct algebraic expressions separated by addition or subtraction operations.

In this polynomial, we have:

Term 1: 18x³ (This is the term with the highest degree, which is 3 in this case, and it includes the coefficient 18.)

Term 2: -2x² (This term has a degree of 2 and a coefficient of -2.)

Term 3: 4x (This term has a degree of 1 and a coefficient of 4.)

Term 4: -1 (This is a constant term with a degree of 0.)

We can see that there are four distinct terms separated by addition and subtraction operations:

18x³, -2x², 4x, and -1.

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Whta is the answer to the multiplication problem below? Look at the graph in picture

Here are answers
3/4
7/8
3/8
1/2

Whta is the answer to the multiplication problem below? Look at the graph in pictureHere are answers

Answers

Answer:

3/4

Step-by-step explanation:

6 squares of 8 which can be simplified to 3/4

The Downtown Community Barbecue served 363 dinners. A child’s plate cost $4.20 and an adult’s plate cost $9.00. A total of $2,681.40 was collected. How many of each type of plate was served?

Answers

Answer:

there were 223 child plates and 149 adult plates

Step-by-step explanation:

There were 223 child plates.

Since there were a total of 372 plates, there will be 149 adult plates (223 + 149 = 372)

To verify, the total amount raised would be $2121.50:

3.50c + 9a = 2121.50

3.50*223 + 9*149 = 780.50 + 1341.00= $2121.50

The number of the child’s plate and adults plate were served is 125 and 155

Let (5x+10) represent the measure of a right angle. What is the possible value of x?

Answers

Answer:

16

Step-by-step explanation:

A right angle has the measurement of 90°. Set the expression equal to 90:

5x + 10 = 90

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, subtract 10 from both sides:

5x + 10 (-10) = 90 (-10)

5x = 90 - 10

5x = 80

Next, divide 5 from both sides:

(5x)/5 = (80)/5

x = 80/5

x = 16

16 is your possible value.

~

please help me i’ll give you brainlist!

please help me ill give you brainlist!

Answers

X intercept: 10/5

Y intercept: 0

How to find  intercept of a linear equation?

To find the intercepts of a linear equation, you need to set either the X or Y variable to 0 and then solve for the other variable.

For example, if you have the equation 5x - 2y = 10, you can set X equal to 0 and solve for Y to find the Y intercept, or you can set Y equal to 0 and solve for X to find the X intercept.

X Intercept:

To find the X intercept, set Y equal to 0 and solve for X.

5x - 2(0) = 10

5x = 10

x = 10/5

X intercept = 10/5

Y Intercept:

To find the Y intercept, set X equal to 0 and solve for Y.

5(0) - 2y = 10

-2y = 10

y = -10/2

Y intercept = 0

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A bag contains eight white marbles, six red marbles and four blue marbles.
How many blue marbles must be added to the bag so that the probability
of choosing a blue marble is 1/2?
a. 6
b. 5
c. 10
d. 0

Answers

Answer:

c) 10

Step-by-step explanation:

you need to add the white and red marbles which would be 14.

then you subtract 14 by the amount of blue marbles.

(x−1) 2+(y+3) 2=16Use the equation of the circle given above to find the center and radius.Use the graph provided in the Show Your Work box to graph the circle.Center:Radius:

(x1) 2+(y+3) 2=16Use the equation of the circle given above to find the center and radius.Use the graph

Answers

Given:

\(\text{ The equation of a circle }(x-1)^2+(y+3)^2=16\)

Required:

Use the equation of the circle given above to find the center and radius.

Explanation:;

We know the standard equation of the circle

\(\begin{gathered} (x-h)^2+(y-k)^2=r^2 \\ \text{ Where, }center(h,k)\text{ and }radius(r) \end{gathered}\)

Now ,

in given equation, center is (1, -3) and radius is 4.

Answer:

Answered the question.

(x1) 2+(y+3) 2=16Use the equation of the circle given above to find the center and radius.Use the graph

Write an expression using the distributed property to dind the product of 7x63

Answers

The product of the expression 7 x 63 is 441.

We have,

To find the product of 7 x 63 using the distributive property, we can break down 63 as the sum of its factors, such as 60 and 3:

7 x 63 = 7 x (60 + 3)

Now, we can apply the distributive property by multiplying 7 to each term inside the parentheses:

7 x (60 + 3) = 7 x 60 + 7 x 3

Simplifying further:

7 x 60 + 7 x 3 = 420 + 21

Therefore,

The product of 7 x 63 is 441.

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The figure below is a scale drawing of an office courtyard using the scale 1 centimeter = 4 feet.



Which figure is a scale drawing of the same courtyard using the scale 1 centimeter = 3 feet?

The figure below is a scale drawing of an office courtyard using the scale 1 centimeter = 4 feet.Which

Answers

Using proportions, it is found that option A gives a figure that is a scale drawing of the same courtyard using the scale 1 centimeter = 3 feet.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

Researching this problem on the internet, the figure with a scale of 1 cm = 4 feet has the dimensions of:

51 cm, 75 cm, 30 cm and 72cm.

For a scale of 1 centimeter = 3 feet, these measures will be multiplied by 4/3, hence the figure is given in option A, as:

51 x 4/3 = 68 cm.75 x 4/3 = 100 cm.30 x 4/3 = 40 cm.72 x 4/3 = 96 cm.

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Can y'all answer it?

Can y'all answer it?

Answers

On solving the provided question we can say that the slope intercept equation is = y-y1 = m(x-x1) => y = 5x/8 - 1  

what is slope intercept?

In mathematics, the intersection point is the place on the y-axis where the slope of the line crosses. a place where the y-axis crosses on a line or curve. Y = mx+c, where m stands for the slope and c for the y-intercept, is used as the equation for the straight line to show this. The slope (m) of the line and its y-intercept (b) are emphasised in the equation's intercept form. When an equation has the intercept form (y=mx+b), the slope is m and the y-intercept is b. Some equations can also be rewritten such that they seem to be slope intercepts. If y=x is rewritten as y=1x+0, for instance, the slope and y-intercept are both changed to 1.

the points are (-8, -4)

the slope is =  5/8

the slope intercept equation is =

y-y1 = m(x-x1)

y +4 = 5/8(x+8)

8y+32 = 5x+40

8y = 5x -9

y = 5x/8 - 1  

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Input (x) 1 2 4 5
Output (y) 6 12 18 24 30
1
6 12
2 3
18
4
24
5
30

Answers

The output is determined by the pattern of the input.

What is pattern?

Pattern is a repeated design or motif used to create a visually pleasing effect. Patterns are often seen in nature, architecture, clothing, and artwork. Patterns can be used to create shapes, textures, and decorations. They can add interest and depth to a design. Patterns can be made up of geometric shapes, lines, curves, and combinations of those elements. They can be created with a variety of materials and techniques, including weaving, printing, embroidery, and painting. Patterns can be used to create continuity, emphasize a focal point, or provide a sense of balance. Patterns can be used to draw the eye to a particular area, or to create a sense of order and organization.

In this example, each output number is the sum of the two numbers before it. Therefore, the output is 6 (1 + 2), 12 (2 + 4), 18 (4 + 5), 24 (5 + 6), and 30 (6 + 8).

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Find the equation of the line.

Find the equation of the line.

Answers

Answer:

y= 4/1x +1

Step-by-step explanation:

the number on the y axis is the b and you do rise over run to find m you rise (so you go up or down) 4 times and run( go to the sides) once.

rise 4

-------- = -----

run 1

Answer:

y = 3x + 1

Step-by-step explanation:

Slope: As it rises 3, it runs 1

Slope = Change in y/change in x

Slope = 3/1

y - intercept = 1 ,the point of intersection

Equation : y = mx + b

m = slope

b = y-intercept

Equation : y = 3x + 1

-Chetan K

5. Match the steps for constructing a congruent line segment to their pictures.


1. Step 2: Draw a second line
segment that is longer than the
first.
2. Step 4: That intersection is the
final endpoint of the copied
segment.
3. Step 1: Put the point of the
compass on one endpoint of the
segment to be copied. Change the
compass setting so that the
pencil end is just touching the
other endpoint, make a small arc
to see this.
4. Step 3: Without changing the
compass setting, put the
compass point on the new
endpoint on a new line. Make a
small arc that intersects the line.

5. Match the steps for constructing a congruent line segment to their pictures.1. Step 2: Draw a second

Answers

We can see here that matching the steps for constructing a congruent line segment to their pictures, we have:

Step 1 - Picture a

Step 2 - Picture b

Step 3 - Picture c

Step 4 - Picture c.

What is a line segment?

Any portion of a line with two ends and a set length is referred to as a line segment. It differs from a line that has neither a beginning nor an end and can be stretched in both directions.

The endpoints of a line segment can be used to define it. The portion of the line that begins at point A and finishes at point B, for instance, is known as the line segment AB.

A ruler or measuring tape can be used to determine the length of a line segment. The distance between two line segments' endpoints is the segment's length.

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Answer:

Step-by-step explanation:

As part of their employee benefits , all workers at Middletown Electronics receive a pension that is calculated by multiplying the number of years worked times 1.56% of the average of their three highest years’ salary. Maureen has worked for Middletown for 30 years and is retiring. Her highest salaries are $107,000, $107,800, and $108,198. Calculate Maureen’s pension.

Answers

Maureen's pension would be $50,035.20.

What is Percentage?

To compute a percentage, divide the value by the entire amount and multiply the result by 100. A percentage is a quantity or ratio that is stated as a fraction of one hundred. The percent sign, "%," is frequently used to represent it.

First, we need to calculate the average of Maureen's three highest salaries:

Average = (107,000 + 107,800 + 108,198) / 3

Average = 322,998 / 3

Average = 107,666

Next, we need to calculate 1.56% of this average:

Percentage = 1.56% * 107,666

Percentage = 1,667.84

Finally, we multiply this percentage by the number of years worked to find the pension:

Pension = 30 * 1,667.84

Pension = 50,035.20

So, Maureen's pension would be $50,035.20.

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Solve x^2 - 4x + 1 = 0.

Answers

x
=
4.23606797

,

0.23606797

A truck with 30-in.-diameter wheels is traveling at 50 mi/h.
Find the angular speed of the wheels in rad/min, "hint convert miles to inches & hours to minutes:

_________rad/min

How many revolutions per minute do the wheels make?
___________rpm

Answers

Answer:

A. the angular speed is 3771.4 rad/min

b. 5921 rpms

Step-by-step explanation: I just got this same question right on a test.

A cylinder has a volume of 100π cubic meters.
a. What is the volume of the cylinder if the height is halved? Explain
b. What is the volume of the cylinder if the diameter is halved? Explain

Answers

Answer:

a) V/2 ; b) V/4

Step-by-step explanation:

a) V = πR²h

If h --> h/2 the new volume V' = πR²h/2 = V / 2

b) πR²h

If D --> D/2 then R --> R/2 and the new volume V" = π(R/2)²h = π(R)²h/4 = V/4

In certain deep parts of oceans, the pressure of sea water,P, in pounds per square foot, at a depth of d feet below the surface, is given by the following equation P=14+ 4d/9
If a scientific team uses special equipment to measure the pressure under water and find it to be 306 pounds per square foot, at what depth is the team making their measurements?

Answers

It is important to note that this equation assumes a constant density of seawater, which is not always the case in the deep ocean. In addition, the pressure at a given depth can vary depending on factors such as temperature and salinity. This equation should be used with caution and in conjunction with other measurements and data analysis techniques.

The given equation for pressure in pounds per square foot at a depth of d feet is P = 14 + 4d/9. We are given that the pressure measured by the scientific team is 306 pounds per square foot. To find the depth at which this pressure is measured, we need to solve the equation for d.

Substituting P = 306 in the equation, we get:

306 = 14 + 4d/9

Multiplying both sides by 9, we get:

2754 = 126 + 4d

Subtracting 126 from both sides, we get:

2628 = 4d

Dividing both sides by 4, we get:

d = 657 feet

The scientific team is measuring the pressure at a depth of 657 feet below the surface of the ocean.

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