Mathematics High School

a ship moved 16 miles east, 21 miles west and 7 miles west where is the ship

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Answer 1

Answer:

The ship is 12 miles west from where it started.

Related Questions

Pleaseee helpppp meeee

Answers

Answer:

150

Step-by-step explanation:

The question is unclear. Do they want an angle that is under 180 (to your left) or over 180 (to your right)? I'm guessing that it is just under 180.

Each hour on a clock takes up 30 degrees. Each 5 minutes hand sweep out out 5/60 * 360 = 30 degrees as well. This angle looks like it is 5 minutes to seven if it was on a clock.

So the large angle from 12 oclock would sweep out 210 degrees and that would mean that the left angle would be 150. But the time is not quite 7 o,clock.

My guess would be 150. Remember, this is an estimate. You can't use a protractor on the question.

The cost to rent a car is a linear function of the distance driven. A car rental company
charges $100 plus $ 0.40 a mile. Write an equation that represents this situation?
A y = 100x +0.40
B y = 100.4x
C y = 40x+100
Dy =0.4x +100

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D. 0.40 is a variable and changes depending on the X value, and 100 is a one time fee so it does not change ever

PLEASE HELPPPP ASAPPP !! thank you in advance

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Answer:

hakdog keep it up po11828282882827272++--yyyxxxxxx

Find the perimeter of the
polygon if ZB = D.
A
5 cm
B
6 cm
D
7 cm
P = [?] cm
What is the perimeter?

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167

hope that helps :)))

Answer: 48

Step-by-step explanation:

yes

Help me with questions 7&8 plssssss

Answers

Hi the slope for problem 7 is m=1/8
The slope for number 8 is m=-1/12

^starigjt line equation (SLE)^

how to find slope of line (m)

=y2 - y1/x2 - x1

7. there, (16,2) occupies the x1 (16) and y1 (2) positions.

and, (32,4) occupies the x2 (32) and y2 (4) positions.

ok, enter:

m = y2 - y1/ x2 - x1

=4 - 2 / 32 - 16

=2/16

= 1/8

8. there, (-2,17) occupies the x1 (-2) and y1 (17) positions.

and, (-1,5) occupies the x2 (-1) and y2 (5) positions.

ok, enter:

m= y2 - y1/ x2 - x1

=5 - 17/ -1 - (-2)

=5 - 17 / -1 + 2

= -12 / 1

= -12

FINALLY FOUND, MODERATOR!!!

Which of the following could NOT be the measures of the angles of a triangle?
A. 30°-120°-30°
B. 40°-40°-100°
C. 60°-60°-60°
D. 70°-50°-70°

Answers

Answer:

Step-by-step explanation:

The Triangle Sum theorem states the angles of all triangles will add up to 180.

70 + 50 + 70 = 190. Therefore, this cannot be a triangle.

a ² + b ² + 2 (ab + bc + ca)

Answers

Answer: = a^2 + 2ab + 2(ac+ b^2 + 2bc)

Step-by-step explanation:

how do i make m the subject of this formula.
y=3mt-a^2m

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Here’s the answer::::

A math test has 12 multiplication problems and 24 division problems.

What is the ratio value of multiplication problems to division problems?

Type your answer as a fraction in simplest form.

Answers

Answer:

The answer would be 2/3

Step-by-step explanation:

There are 36 total problems and 24 division problems.

So take 24 over 36 and simplify and you get 2/3

Hector's parents sent 24 text messages last month. This is 16% of the total recorded on the bill. How many total text messages did the family send last month?

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Answer:

I cant answer, but I can help, divide 100 by 16, than multiply what you get from that with 24, it'll look like this:

(100÷16)x24=A

20. What is the slope-intercept form of the equation of the line with a slope of 1/4 and y-intercept at the origin?

Answers

Answer

The slope-intercept form of the equation of the line with a slope of 1/4 and y-intercept at the origin:

[tex]y=\frac{1}{4}x[/tex]

Step-by-step explanation:

Given

The slope = m = 1/4The y-intercept is (0, 0)

We know that the slope-intercept form of the line equation is

[tex]y=mx+b[/tex]

where m is the slope and b is the y-intercept.

substituting the values m=1/4 and the y-intercept b=0 to determine the equation in slope-intercept form

[tex]y=mx+b[/tex]

[tex]y=\frac{1}{4}x+0[/tex]

[tex]y=\frac{1}{4}x[/tex]

Thus, the slope-intercept form of the equation of the line with a slope of 1/4 and y-intercept at the origin:

[tex]y=\frac{1}{4}x[/tex]

Victoria created the scatterplot below based on the data in the table for the ages and heights of some teachers in her school. Teacher Age vs. Height Teacher Age Height (in.) 1 36 62 2 28 70 3 50 60 4 44 72 5 58 68 6 24 65 A graph titled Teacher Age versus height has age on the x-axis and height (inches) on the y-axis. Points are at (22, 66), (28, 70), (35, 62), (42, 72), (60, 50) and (59, 69). She wants to see if a teacher’s height depends on his or her age. What did she do wrong when she created the scatterplot? She mixed up the independent and dependent variables. She labeled the x-axis of the scatterplot “Age” when she should have labeled it “Teacher.” She plotted the point (36, 62) when she shouldn’t have. She mixed up the x- and y-coordinates of the point representing teacher 3.

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

I took the test and got 100%.

x - 9 = 0.7*x + 0.6*x

Answers

Answer:

x = -30

Step-by-step explanation:

[tex]0.7x+0.6x=1x-9\\=>1.3x=1x-9\\=>1.3x-1x=9\\=>0.3x=-9\\=>\frac{3}{10}x =-9\\=>x=\frac{-9*10}{3} =-30[/tex]

stephanie and amanda each improved their yards by planting hostas and shrubs. they bought their supplies from the same store. stephanie spent $141 on 13 hostas and 10 shrubs. amanda spent $87 on 11 and 2 shrubs. what is the cost of one hosta and the cost of one shrub?

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where are the answer choices

PLEASE HELP ME THIS IS DUE SOON RJFVRPIVNOIEL

Answers

Answer:

you can calculate it like two rectangle volume

For each ordered pair determine whether it is a solution to the system of equations 2x-7y=8 -3x+2y=5

Answers:
(-3,-2)

(4,0)

(5,4)

(-7,-8)

Answers

Answer:

The solution of this system of linear equations is [tex](x,y) = (-3,-2)[/tex].

Step-by-step explanation:

Let be the following system of linear equations:

[tex]2\cdot x - 7\cdot y = 8[/tex] (1)

[tex]-3\cdot x + 2\cdot y = 5[/tex] (2)

From (1) we clear [tex]y[/tex]:

[tex]2\cdot x -8 = 7\cdot y[/tex]

[tex]y = \frac{2\cdot x - 8}{7}[/tex]

And we apply this variable in (2):

[tex]-3\cdot x+2\cdot \left(\frac{2\cdot x -8}{7} \right)= 5[/tex]

[tex]-3\cdot x +\frac{4}{7} \cdot x -\frac{16}{7} = 5[/tex]

[tex]-\frac{17}{7}\cdot x = \frac{51}{7}[/tex]

[tex]x = -\frac{51}{17}[/tex]

[tex]x = -3[/tex]

And the value of [tex]y[/tex] is:

[tex]y = \frac{2\cdot (-3)-8}{7}[/tex]

[tex]y = -\frac{14}{7}[/tex]

[tex]y = -2[/tex]

The solution of this system of linear equations is [tex](x,y) = (-3,-2)[/tex].

What is the yyy-intercept of y=5x-1y=5x−1y, equals, 5, x, minus, 1?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
(-1,0)(−1,0)left parenthesis, minus, 1, comma, 0, right parenthesis

(Choice B)
B
(0,-1)(0,−1)left parenthesis, 0, comma, minus, 1, right parenthesis

(Choice C)
C
(5,0)(5,0)left parenthesis, 5, comma, 0, right parenthesis

(Choice D)
D
(0,5)(0,5)

Answers

Answer:

B.(0,-1)

Step-by-step explanation:

Answer:

B.(0,-1)

Step-by-step explanation:

i just got it right

Graph the system of inequalities.

(x-y< or = to 1
(x+2y < 4

Answers

Answer:

[tex]y\ge \:-1+x,\:y<\frac{4-x}{2}\quad :\quad \begin{bmatrix}y\ge \:-1+x\\ y<\frac{4-x}{2}\end{bmatrix}\quad \mathrm{Unbounded}[/tex]

The graph is attached below.

Step-by-step explanation:

Given the system of inequalities.

[tex]\begin{bmatrix}x-y\le \:1\\ x+2y<4\end{bmatrix}[/tex]

Isolate y for [tex]x-y\le \:1[/tex]

[tex]x-y\le \:1[/tex]

subtract x from both sides

[tex]x-y-x\le \:1-x[/tex]

simplify

[tex]-y\le \:1-x[/tex]

Multiply both sides by -1 (reverse the inequality)

[tex]\left(-y\right)\left(-1\right)\ge \:1\cdot \left(-1\right)-x\left(-1\right)[/tex]

simplify

[tex]y\ge \:-1+x[/tex]

now solving

[tex]x+2y < 4[/tex]

isolate y for [tex]x+2y < 4[/tex]

[tex]x+2y < 4[/tex]

subtract x from both sides

[tex]x+2y-x<4-x[/tex]

simplify

[tex]2y<4-x[/tex]

Divide both sides by 2

[tex]\frac{2y}{2}<\frac{4}{2}-\frac{x}{2}[/tex]

Simplify

[tex]y<\frac{4-x}{2}[/tex]

Graphing Method:

1. Graph each inequality separately

2. Choose a test point to determine which side of the line needs to be shaded

3. The solution to the system will be the area where the shadings from each inequality overlap one another.

Thus,

[tex]y\ge \:-1+x,\:y<\frac{4-x}{2}\quad :\quad \begin{bmatrix}y\ge \:-1+x\\ y<\frac{4-x}{2}\end{bmatrix}\quad \mathrm{Unbounded}[/tex]

The graph is attached below.

someone plzzz help me real fast on this its due in 10 mins plz helpppppppppppppppp

Answers

Answer:

first one = greater than or equal to 1 and less than 10

Step-by-step explanation:

it's a method of writing numbers as the product of two factors where the first factor is a number whose absolute value is greater than or equal to 1 but less than 10 while the second factor is a power of 10

the following are the duration in minutes of a sample of long - distance phone calls made within the continental united states reported by one long - distance carrier.

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The correct option is B) 5 minutes.

The width of each class /(class width) is 5 minutes.

What is termed as the class width/class interval?

The term "class interval" refers to the numerical width of a class in such a frequency distribution.

Some key features regarding the class width/class interval are-

Data in a grouped frequency distribution is organized into classes. The class interval is defined as the difference between both the upper and lower class limits.There are two kinds of class intervals in statistics: exclusive & inclusive class intervals. A table of frequency distribution can be built using these.A class interval is utilized in a table of frequency distribution to systematically organize data from an experiment. A frequency distribution's classes are usually mutually exclusive. A grouped frequency distribution can be organized according to whether the class intervals are exclusive or inclusive.

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The complete question is -

The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier.

RelativeTime (in Minutes)/

Frequency

0 but less than 5/0.37

5 but less than 10/0.22

10 but less than 15/0.15

15 but less than 20/0.10

20 but less than 25/0.07

25 but less than 30/0.07

30 or more/0.02

What is the width of each class?

A) 1 minute

B) 5 minutes

c) 2%

d) 100%

An online furniture store sells chairs for $150 each and tables for $550 each. The
store must sell at least $8500 worth of chairs and tables each day. Write an inequality
that could represent the possible values for the number of tables sold, t, and the
number of chairs sold, c, that would satisfy the constraint.

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Answer: 550t + 150c ≥ 8500

Step-by-step explanation: the store makes 550 for each table sold, so for t tables, the store will make 550t dollars. The store makes 150 for each chair sold, so for c chairs, the store will make 150c dollars. Therefore, the total revenue 550t + 150c must be greater than or equal to 8500

Y = 9x^2 - 81

Solve by following quadratic function by utilizing the square root method

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I believe it should be 9(x+3)(x-3). You start by simplifying the equation so you would divide 9x^2 and -81 to get 9x^2 and -9. Next you would take the square root of both x^2 and 9 to get 3 (3 squared = 9). And then you just put 9 in front then make two separate parentheses with one be x+3 and other be x-3.

A lady traveled 100 kilometers at a rate of 30 kilometers an hour. If she wants her return trip to be three-fourths of her initial trip, at what rate must she return?

Answers

Answer:

Step-by-step explanation:

100/30=3 1/3hrs to go

3 1/3*3/4=

10/3*3/4=30

30/12=2 1/5hrs return

100/2 1/2=

100/(5/2)=

100*2/5=200/5=40

100/2.5=40mph return

Simplify the following surd expressions
a) 7/3 - 2/3 + V3 - 3V3

Answers

Answer:

[tex]\frac{7}{3}-\frac{2}{3}+\sqrt{3}-3\sqrt{3}=\frac{5}{3}-2\sqrt{3}[/tex]

Step-by-step explanation:

Given the expression

[tex]\frac{7}{3}\:-\:\frac{2}{3}\:+\:v^3\:-\:3v^3[/tex]

solving the expression

[tex]\frac{7}{3}\:-\:\frac{2}{3}\:+\:\sqrt{3}-3\sqrt{3}[/tex]

combine the fractions i.e [tex]\frac{7}{3}-\frac{2}{3}=\frac{5}{3}[/tex]

[tex]\frac{7}{3}\:-\:\frac{2}{3}\:+\:\sqrt{3}-3\sqrt{3}=\frac{5}{3}+\sqrt{3}-3\sqrt{3}[/tex]

add similar elements i.e [tex]\sqrt{3}-3\sqrt{3}=-2\sqrt{3}[/tex]

[tex]=\frac{5}{3}-2\sqrt{3}[/tex]

Thus,

[tex]\frac{7}{3}-\frac{2}{3}+\sqrt{3}-3\sqrt{3}=\frac{5}{3}-2\sqrt{3}[/tex]

Help please!!!!!!!!!!!!!!!!!!

Answers

Answer:

trapezoid

Step-by-step explanation:

Leon says that when any number between 1 and 9 is multiplied by 0 , the product always has a 0 or 5 in the ones place. Is this reasonable? explain

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Answer:

Step-by-step explanation:

Any number multiplied by 0 is 0

4 × 0 = 0 , n × 0 = 0

What is the answer to log(10³x) =?

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The value of the logarithmic expression log(10³ x) is 3 + log(x).

The opposite of exponential functions is logarithmic functions. The exponential function y = aˣ has the inverse, [tex]x=a^{y}[/tex]. The exponential equation [tex]x=a^{y}[/tex] is defined as being identical to the logarithmic function y = logₐ x.

The properties of logarithm are:

Product rule: logₐ (mn) = logₐ m + logₐ n

Quotient rule: logₐ (m/n) = logₐ m – logₐ n

Power rule: logₐ (mn) = n( logₐ m )

Consider the logarithmic expression,

a = log ( 10³ x )

Using the property of logarithm:

logₐ ( mn ) = logₐ m + logₐ n

Then,

a = log( 10³ x )

a = log( 10³ × x)

a = log( 10³ ) + log( x )

By using the property of logarithm:

logₐ mⁿ = n( logₐ m )

So,

a = 3( log 10 ) + log( x )

a = 3 + log ( x )

Therefore, log( 10³ x ) = 3 + log ( x ).

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please help asap!!!!!!!!!!!!!!!!!

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That’s a right angle, so it is 90 degrees. It is split into a 39 degree angle and a 51 degree angle.

Subtract 25¢ from $7.42. Include the dollar sign and no spaces in your answer.

Answers

$7.17 hope this helps

Answer:

$7.17

Step-by-step explanation: hope it helped

I need a step by step to solving this problem 4|3x + 4 = 4x + 8

Answers

The solution to the equation given as 4(3x + 4) = 4x + 8 is x =-1

What are expressions?

Expressions are mathematical statements that are represented by variables, coefficients and operators

How to determine the solution to the equation?

The equation is given as

4(3x + 4) = 4x + 8

Open the bracket in the above equation

So, we have

12x + 16 = 4x + 8

Collect the like terms in the above equation

12x - 4x = 8 - 16

Evaluate the like terms in the above equation

8x = -8

Divide both sides by 8 in the above equation

x =-1

Hence, the solution to the equation given as 4(3x + 4) = 4x + 8 is x =-1