Answer:
1 week 2 inches
Step-by-step explanation:
Pretty self explanatory
so we started with 4cm and by week 3 its 10cm.
So since the 4cm doesn’t count toward the 10 cm since it was already there, that turns it into 6 becuase 10-4 is 6. So 3 weeks, 6 inches, find the unit rate by dividing 6 and 3 and you’ll get 2, so 2 inches every week, now to check they gave us another week which is by 6 weeks, its 16 cm tall, now remember to subtract the 4, so 12, 12/6=2. So 2 inches every week.
DOUBLE CHECK:
So 6 weeks in total, thats 12cm becuase each week is 2cm 6*2=12. Add the 4 from the beginning, it’s 16
TRIPLE CHECK
make equation:
X for growth each week
6*x+4=16
You’ll get 2
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?
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
HELP
These triangles
are congruent by
the triangle
congruence
postulate [ ? ).
A. SSS
B. SAS
C. Neither, they are not congruent
Answer:
C
Step-by-step explanation:
Answer:
SSS
Step-by-step explanation:
right on acellus
a ² + b ² + 2 (ab + bc + ca)
Answer: = a^2 + 2ab + 2(ac+ b^2 + 2bc)
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
Answer:
No
Step-by-step explanation:
Any number multiplied by 0 is 0
4 × 0 = 0 , n × 0 = 0
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?
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]
A bank offers an annual simple interest rate of 9% on home improvement
loans. Tobias borrowed $20,000 over a period of 4 years. How much did
he repay altogether?
Answer:
Tobias repayed a total of $7,200.
Step-by-step explanation:
If Tobias borrowed $20,000, and the annual interest rate is 9% of this per year, then we need to find 9% of 20,000.
20,000 x 0.09 = 1,800
Therefore, the yearly interest rate is $1,800. Now, we need to multiply this by 4.
1,800 x 4 = 7,200
Therefore, Tobias repayed a total of $7,200.
Hope this helps! :D
a point in space $(x,y,z)$ is randomly selected so that $-1\le x \le 1$,$-1\le y \le 1$,$-1\le z \le 1$. what is the probability that $x^2 y^2 z^2\le 1$?
Probability that [tex]x^2+y^2+z^2\leq 1[/tex] is 0.523
Given that a point (x, y, z) is in space which is randomly selected as
[tex]-1\le x \le 1$,$-1\le y \le 1$,$-1\le z \le 1$[/tex]
These three equations represents a cube in space.
Length of each side of the cube = 1 - -1 = 2
Now [tex]x^2+y^2+z^2\leq 1[/tex] represents a sphere with center (0, 0, 0) and of radius less than or equal to 1.
So we can imagine that this sphere is inside the cube.
So the probability that [tex]x^2+y^2+z^2\leq 1[/tex] = Volume of the sphere/Volume of the cube
Volume of sphere with radius 1 = [tex]\frac{4}{3} \pi r^3=\frac{4}{3} \pi \times 1 = \frac{4}{3}\times 3.14 = 4.186[/tex] cubic unit
Volume of the cube of length 2 = [tex]2^3 = 8[/tex] cubic units
So the probability that [tex]x^2+y^2+z^2\leq 1[/tex] = 4.186/8 = 0.523
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Graph the system of inequalities.
(x-y< or = to 1
(x+2y < 4
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.
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°
Answer:
D
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.
Andre wants to purchase some onions and tomatoes to make tomato soup. The recipe states that four times the number of tomatoes, x , plus five times the number of onions, y, should produce 56 bowls of tomato soup. A different recipe states that two times the number or tomatoes and onions used in the soup when Andre adds the two recipes together?
Answer:
Tomatoes = 11.5
Onions = 2
Step-by-step explanation:
Andre wants to purchase some onions and tomatoes to make tomato soup. The recipe states that four times the number of tomatoes, , plus five times the number of onions, x, should produce 56 bowls of tomato soup. A different recipe states that two times the number of tomatoes used minus the number of onions used should produce 21 bowls of tomato soup. What is the resulting recipe for the number or tomatoes and onions used in the soup when Andre adds the two recipes together?
Let
Tomatoes = x
Onions = y
Recipe 1:
4x + 5y = 56
Recipe 2:
2x - y = 21
4x + 5y = 56 (1)
2x - y = 21 (2)
Multiply (2) by 5
4x + 5y = 56 (1)
10x - 5y = 105 (3)
Add
10x + 4x = 105 + 56
14x = 161
x = 161 / 14
= 11.5
Substitute x =11.5 into
2x - y = 21
2(11.5) - y = 21
23 - y = 21
-y = 21 - 23
-y = -2
y = 2
Tomatoes = 11.5
Onions = 2
Subtract 25¢ from $7.42. Include the dollar sign and no spaces in your answer.
Answer:
$7.17
Step-by-step explanation: hope it helped
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.
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
how do i make m the subject of this formula.
y=3mt-a^2m
please help asap!!!!!!!!!!!!!!!!!
Find the area of the geometric figure.
Square
6.5
The area of the geometric figure which is the square will be 42.25.
What will be the area of the square?It should be noted that a square simply means a shape that has all its sides equal. It should be noted that the area of a square will be calculated as:
= Side × Side
In this case, the side is given as 6.5. Therefore, it should be noted that the area will be:
Area of a square = Side × Side
= 6.5 × 6.5
= 42.25
Therefore, the area of the geometric figure which is the square will be 42.25.
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Y = 9x^2 - 81
Solve by following quadratic function by utilizing the square root method
Pleaseee helpppp meeee
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.
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?
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
What is the answer to log(10³x) =?
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 ME THIS IS DUE SOON RJFVRPIVNOIEL
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)
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 2.5x0.012=
(20 POINTS)
Answer: 0.03
Step-by-step explanation:
Answer:
0.03
Step-by-step explanation:
[tex]\frac{25}{10}[/tex]×[tex]\frac{12}{1000}[/tex]=
[tex]\frac{300}{10000}[/tex]=0.03
PLEASE HELPPPP ASAPPP !! thank you in advance
Answer:
hakdog keep it up po11828282882827272++--yyyxxxxxx
Help please!!!!!!!!!!!!!!!!!!
Answer:
trapezoid
Step-by-step explanation:
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
Help me with questions 7&8 plssssss
^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
= 1/88. 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
= -12FINALLY FOUND, MODERATOR!!!x - 9 = 0.7*x + 0.6*x
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]
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.
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.To know more about the class width/class interval, here
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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%
Simplify the following surd expressions
a) 7/3 - 2/3 + V3 - 3V3
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]
[tex]Given \: cotA = \sqrt{\dfrac{1}{3}}[/tex]
Find all other trigonometric ratios.
[tex] \tt cotA = \sqrt{ \dfrac{1}{3}}[/tex]
[tex] \tt \implies cotA = \dfrac{1}{\sqrt{3}}[/tex]
To Find :All other trigonometric ratios, which are :
sinAcosAtanAcosecAsecASolution :Let's make a diagram of right angled triangle ABC.
Now, From point A,
AC = Hypotenuse
BC = Perpendicular
AB = Base
[tex] \tt We \: are \: given, \: cotA = \dfrac{1}{\sqrt{3}}[/tex]
[tex] \tt We \: know \: that \: cot \theta = \dfrac{base}{perpendicular}[/tex]
[tex] \tt \implies \dfrac{base}{perpendicular} = \dfrac{1}{\sqrt{3}}[/tex]
[tex] \tt \implies \dfrac{AB}{BC} = \dfrac{1}{\sqrt{3}}[/tex]
[tex] \tt \implies AB = 1x \: ; \: BC = \sqrt{3}x \: (x \: is \: positive)[/tex]
Now, by Pythagoras' theorem, we have
AC² = AB² + BC²
[tex] \tt \implies AC^{2} = (1x)^{2} + (\sqrt{3}x)^{2}[/tex]
[tex] \tt \implies AC^{2} = 1x^{2} + 3x^{2}[/tex]
[tex] \tt \implies AC^{2} = 4x^{2}[/tex]
[tex] \tt \implies AC = \sqrt{4x^{2}}[/tex]
[tex] \tt \implies AC = 2x[/tex]
Now,
[tex] \tt sin \theta = \dfrac{perpendicular}{hypotenuse}[/tex]
[tex] \tt \implies sinA = \dfrac{BC}{AC} [/tex]
[tex] \tt \implies sinA = \dfrac{\sqrt{3}x}{2x} [/tex]
[tex] \tt \implies sinA = \dfrac{\sqrt{3}}{2} [/tex]
[tex] \Large \boxed{\tt sinA = \dfrac{\sqrt{3}}{2}} [/tex]
[tex] \tt cos \theta = \dfrac{base}{hypotenuse}[/tex]
[tex] \tt \implies cosA = \dfrac{AB}{AC} [/tex]
[tex] \tt \implies cosA = \dfrac{1x}{2x} [/tex]
[tex] \tt \implies cosA = \dfrac{1}{2} [/tex]
[tex] \Large \boxed{\tt cosA = \dfrac{1}{2}} [/tex]
[tex] \tt tan \theta = \dfrac{perpendicular}{base}[/tex]
[tex] \tt \implies tanA = \dfrac{BC}{AB} [/tex]
[tex] \tt \implies tanA = \dfrac{\sqrt{3}x}{1x} [/tex]
[tex] \tt \implies tanA = \sqrt{3}[/tex]
[tex] \Large \boxed{\tt tanA = \sqrt{3}}[/tex]
[tex] \tt cosec \theta = \dfrac{hypotenuse}{perpendicular}[/tex]
[tex] \tt \implies cosecA = \dfrac{AC}{BC} [/tex]
[tex] \tt \implies cosecA = \dfrac{2x}{\sqrt{3}x} [/tex]
[tex] \tt \implies cosecA = \dfrac{2}{\sqrt{3}}[/tex]
[tex] \Large \boxed{\tt cosecA = \dfrac{2}{\sqrt{3}}}[/tex]
[tex] \tt sec \theta = \dfrac{hypotenuse}{base}[/tex]
[tex] \tt \implies secA = \dfrac{AC}{AB} [/tex]
[tex] \tt \implies secA = \dfrac{2x}{1x} [/tex]
[tex] \tt \implies secA = 2[/tex]
[tex] \Large \boxed{\tt secA = 2}[/tex]
[tex]\setlength{\unitlength}{2mm}\begin{picture}(0,0)\thicklines\put(0,0){\line(3,0){2.5cm}}\put(0,0){\line(0,3){2.5cm}}\qbezier(12.4,0)(6.6,5)(0,12.4)\put(-2,13){\sf A}\put(13,-2){\sf C}\put(-2,-2){\sf B}\put(-3,6){\sf 1}\put(6,-3){\sf \sqrt3$}\put(7,7){\sf 2}\end{picture}[/tex]
Solution :-Given ,
cotA = [tex]\sf \sqrt{\dfrac{1}{3}}=\dfrac{1}{\sqrt3}[/tex]We need to find ,
All the trigonometric identitiesFirst finding the other side of the triangle using Pythagoras theorem .
Hypotenuse² = Base² + Height²
[tex]\to\sf Hypotenuse^2 = (1)^2 + (\sqrt3)^2[/tex]
[tex]\to\sf Hypotenuse^2 = 1 + 3 [/tex]
[tex]\to \sf Hypotenuse = \sqrt4[/tex]
[tex]\to\bf Hypotenuse = 2[/tex]
Now ,
[tex]\rm sinA = \dfrac{opposite}{hypotenuse}=\sf\dfrac{\sqrt3}{2}[/tex][tex]\rm cosA = \dfrac{adjacent}{hypotenuse}=\sf\dfrac{1}{2}[/tex][tex]\rm tanA = \dfrac{opposite}{adjacent}=\sf\dfrac{\sqrt3}{1}[/tex][tex]\rm cosecA=\dfrac{hypotenuse}{adjacent}=\sf\dfrac{2}{\sqrt3}[/tex][tex]\rm secA = \dfrac{Hypotenuse}{adjacent}=\sf\dfrac{2}{1}[/tex][tex]\rm cotA = Already\; given =\sf \dfrac{1}{\sqrt3}[/tex]