Step-by-step explanation:
angle of 45° is drawn.
I hope you got it.
what is the solution of the system of linear equations? y = 3x - 2 y - 2 = x
Answer:
x = 2 y = 4
Step-by-step explanation:
y = 3x - 2
x = y - 2
Plug in the equation of x into the first equation and solve for y.
y = 3x - 2
y = 3(y - 2) - 2 Multiply out
y = 3y - 6 - 2
y = 3y - 8 Add 8 to each side
y + 8 = 3y - 8 + 8 8 cancels on the right
y + 8 = 3y Subtract y from each side
y - y + 8 = 3y - y The y on the left cancels
8 = 2y Divide each side by 2
8/2 = 2y/2 2 on the right cancels because 2/2 = 1
8/2 = y
4 = y
Now plug your answer into the 2nd equation given to solve for x.
x = y - 2
x = 4 - 2
x = 2
What is the answer to 4x+2=18
Answer:
x=4
Step-by-step explanation:
4x+2=18
-2 -2
4x=16
divide both sides by 4 to get 4
What is 10^5 as a decimal
Answer:
10^5=100000
Step-by-step explanation:
Were should I go to study for my 10 grade geometry Fundamentals test which is tomorrow :[
Answer: in a quiet room or the library,
also you better summarize your geometry lessons and remember the formulas :P
A total of 360 people were surveyed. Of the people surveyed, 70 said they were an early bird and preferred tea. The percentage of people surveyed who are night owls is ___%. The percentage of early birds who prefer to drink tea is ___%.
Answer:
A total of
360
people were surveyed. Of the people surveyed,
70
said they were an early bird and preferred tea. The percentage of people surveyed who are night owls is
60
%. The percentage of early birds who prefer to drink tea is
49
%.
Step-by-step explanation:
The last row and the last column give the total number of people surveyed, which is 360.
The joint frequency of the Early Bird column and the Tea row show that 70 people said they were an early bird and preferred tea.
To get the percentage of night owls, divide the total number of night owls by the total number of people surveyed and multiply by 100:
To get the percentage of early bird tea drinkers, divide the joint frequency of early birds and tea by the marginal total number of early birds and multiply by 100:
From total of 360 people surveyed, 70 people are early birds and preferred tea. Hence night owls is 60% and people who prefer to drink tea is 49%
What is a survey?A survey is a method of data collection and can be in the form of questionnaires and interviews. The survey tells us about the demands and needs of the people.
As per the question, the last row and column give us a total of 360. Those who are early birds and take tea are 70% of the population. To get the percentage we need to X night owls by the number of people surveyed multiplied by 100.
For the early bird tea, the total frequency of early birds by the marginal total number of early birds multiplied by 100.
Find out more information about the survey.
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foil (3x-5)(x+6) need the answer ASAP
Answer:
3x²+13x-30
Step-by-step explanation:
3x×x =3x²
3x×6= 18x
-5×x = -5x
-5×6=-30
Connect them together to form:
3x²+13x-30
(I got the 13x by doing 18x-5x)
Help me please!!!!!!!!!
Answer:
[tex] { \:( {6}^{10})}^{ - 7} [/tex]
Step-by-step explanation:
For all choices the exponent are addeed not multiplied.
hope it helps ❤❤❤
For any question comment me
factorise ax + ay + 3bx + 3by
Factor like terms..
(ax + ay) + (3bx + 3by)
= a(x + y) + 3b(x + y)
Finally, group the common factors of x + y and collect the terms to get:
(x + y )(a + 3b)
The factors of the given expression are (x + y ) and (a + 3b).
What is the expression?Expressions are defined as mathematical statements that have a minimum of two terms containing variables or numbers.
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
We have been given that expression as :
ax + ay + 3bx + 3by
We have to factorize the given expression.
⇒ ax + ay + 3bx + 3by
Factor like terms.
⇒ (ax + ay) + (3bx + 3by)
⇒ a(x + y) + 3b(x + y)
Take out the common factors of x + y and combine the terms to get:
⇒ (x + y )(a + 3b)
Therefore, the factors of the given expression are (x + y ) and (a + 3b).
Learn more about the Expressions here :
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6(y + 3) = 30
(ignore this i8)
Answer:
y = 2
Step-by-step explanation:
Step 1:
6y + 18 = 30
Step 2:
6y = 12
Answer:
y = 2
Hope This Helps :)
Find x
A) 4
B) 4 root 2
C) 4 root 3
D) 8 root 3
This triangle is a 30-60-90 triangle, which you can just find by solving for the unknown angle in the triangle, making it a 30-60-90 triangle.
You'll need to memorize the side lengths for these triangles, but the side opposite from the hypotenuse (x in this case), will be half the length of the hypotenuse.
Meaning that [tex]2x=8[/tex]
So [tex]x=4[/tex]
Hope this helps.
頑張って!
A car dealership pays $8,350 for a car. They mark up the price by 17.4% to get the retail price. What is the retail price of the car at this dealership? Round your answer to the nearest hundredths (second) decimal place.
Answer:
1452.9
Step-by-step explanation:
the weights of students in a junior college are normally distributed with a mean of 100 lbs. and a standard deviation of 18 lbs. What is the probability that a student drawn at random will weigh less than 150 lbs
Answer: 0.9973 .
Step-by-step explanation:
Given: Weights of students in a junior college follows normal distribution with a mean = 100 lbs and a standard deviation =18 lbs.
Let X denotes the random variable that represents the weights of students .
Then, the probability that a student drawn at random will weigh less than 150 lbs will be :
[tex]P(X<150)=P(\dfrac{X_\mu}{\sigma}<\dfrac{150-100}{18})\\\\=P(Z<2.78 )\ \ \ \ [Z=\dfrac{X_\mu}{\sigma}]\\\\ =0.9973\ \ \ [\text{By p-value table for z}][/tex]
Hence, the e=required probability is 0.9973 .
Floyd has just opened his new sandwich shop. He makes $3.00 on every sandwich sold and his monthly expenses
are $5,000. Which equation can be used to model the number of sandwiches, s, he needs to sell in a month in order to
make a profit, P?
O P = 5,000 - 35
O P = 5000 + 35
O P = 3s - 5000 6
Os= 5000-P
0
Answer:
I think the answer is P=3s-5000
Step-by-step explanation:
you wouldn't subtract anything from the 5000, you would subtract the 5000 from how much you made from the sandwiches.
hope that helps
can you please tell me the ans of my questions. the right ans with the process
Answer: i) 216 liters ii) 60 cm
Step-by-step explanation:
i) 216,000 cm³ × 1 liter/1000 cm³ = 216 liters
ii) [tex]\sqrt[3]{216,000\ cm^3} =60\ cm[/tex]
What is the difference between the high and low temp in the thermometer?
Answer:
The difference between the high and low temperature in the thermometer is 23°F.
Step-by-step explanation:
Given information: Highest temperature = 20°F and the lowest temperature = -3°F.
We need to find the difference between the high and low temperature in the thermometer.
Difference between the high and low temperature is
Difference = Highest temperature - Lowest temperature
Difference = 20°F - (-3°F)
Difference = 20°F + 3°F
Difference = 23°F
Therefore the difference between the high and low temperature in the thermometer is 23°F.
If one leg of a right triangle is 6 cm long, and the other leg is 8 cm long, how long is the triangles hypotenuse?!!
Answer:
approximately 9
Step-by-step explanation:
6 squared (36) plus 8 squared (64) is 84, and the square root of that is about 9
Answer:
10cm
Step-by-step explanation:
a²+b²=c²
6²+8²=c²
36+64=c²
100=c²
10=c
Select all the points that are on the graph of the equation 4y-6x=12 a (-4, -3) b (3, -4) c (0, -2) d (0, 3) e (6, 4) f (-1, 1.5)
Answer:
a,b,d,f
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask :)
Find all possible values of the expression 1/y if: .125
Answer:
The possible values for 1/y of the expression 0.125 < y < 0.25 are in the range
4 < 1/y < 8
Step-by-step explanation:
The given information are;
The range of values of y are 0.125 < y < 0.25, therefore, we have;
The boundaries of the function, y are 0.125 and 0.25
The inverse of the boundaries of the function, y are 1/0.125 = 8 and 1/0.24 = 4
Therefore;
The limits of the inverse of the function y are ;
The inequality that represents 1/y is therefore;
1/0.25 < 1/y < 1/0.125 or 4 < 1/y < 8
The possible values of 1/y for the expression 0.125 < y < 0.25 are therefore;
4 < 1/y < 8.
6
Triangle RST has the vertices R(2, 3), S(-2, 1), and T(-1,5). What are the coordinates after the
two transformations:
Reflection over the y-axis and rotation at 180 degrees around the origin. *
(2 points)
Enter your answer
Please and thank you
Answer:
R(-2,-1)
S(-1,-5)
T(2,-3)
Step-by-step explanation:
First, you flip all coordinates to their exact points, just of the other side of the y-axis.
Then, you just gotta graph it and rotate it 180* around the origin.
A lotion is made from an oil blend costing $1.50 per ounce and glycerin costing $1.00 per ounce. Four ounces of lotion costs $5.50. A table titled Lotion, showing Ounces, Cost per Ounce, and Total. The first row shows, Oil Blend, and has 4 minus g, 1.50, and x. The second row shows Glycerin, and has g, 1.00, and blank. The third row shows, Mixture, and has 4, blank, and 5.50. Which value could replace x on the table? (4 – g) 1.5 (4 – g) + 1.5 4g – g(1.5) (4 – g)g'
Answer:
A
Step-by-step explanation:
Answer: A: (4-g) 1.5
Step-by-step explanation:
(-4x2)^2 / 2-9-5 how do I simplify
Answer:
-16/3
Step-by-step explanation:
To solve for this use the mnemonic device PEMDAS (parenthesis, exponent, multiplication, division, addition, subtraction)
First multiply -4 and 2 (-8)
(-8)^2/2-9-5
Next find out what -8 squared is (64)
64/2-9-5
Now simplify the denominator
64/-12
Lastly, divide 64 and -12
-16/3
Given h(t) = t2+t+ 12 and k(t) = V1-1, evaluate (ko h)(10).
O 11
0 24
O 122
366
Answer:
A-11
Step-by-step explanation:
Correct on EDGE
The value of the function k(h(10)) will be 11. The correct option is A.
What is a function?A function is defined as the expression that set up the relationship between the dependent variable and independent variable.
Given h(t) = t²+t+ 12 and k(t) = √t-1, we are to find k(k.h)(10)
k{h(t)} = k{ t²+t+ 12}
Since k(t)= √t-1, we will replace the variable t in the function with t²+t+ 12
k(h(t)) = √{(t²+t+ 12)-1}
k(h(t)) = √t²+t+12-1
k(h(t)) = √t²+t+11
Substituting t = 10 into the resulting function;
k(h(10)) = √(10)²+(10)+11
k(h(10)) = √100+10+11
k(h(10)) = √121
k(h(10))= 11
Therefore, the value of the function k(h(10)) will be 11. The correct option is A.
To know more about functions follow
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What is the value of sin(60°+0) - sin(60°+0)?
Answer:
0
Step-by-step explanation:
Let us take sin(60 degree + theta) =x
Substituting x in equation
=> x-x
=> 0
Step-by-step explanation:
Hey there!!
= Sin (60°+0) - sin (60°-0)
= sin 0° - sin0° { as sin0° = 0}.
= 0-0
=0.
Hope it helps...
2/3 - 4x + 7/2 = -9x + 5/6 need help asap please!
Answer:
X= Negative 2/3 or -0.6
Step-by-step explanation:
here you go
Can someone please help me with this problem? In the picture down below. WILL MARK BRAINLIEST!!!
Answer:
only a
Step-by-step explanation:
Answer: The answer would be B
Step-by-step explanation:
Use the protractor tool to measure the angle.
What is the measure of the angle? Enter the answer in the box.
degrees
Answer: i belive its 140 i really coudn't tell.
Step-by-step explanation:
I used the protactor and I aligned it agaist the problem. Hope this helps. :)
By that i meant i got my protactor and I aligned it on the tiny dot you can see, the arrow pointed onto the number. I really don't think there is much to explain. If their is any confusion i will re-write it.
Answer:
the answer for this question is 110
Lin makes a line plot to show the data in the table. He places one dot above the 2 on the scale .How many dots should he place above the 3
Answer: 4
Step-by-step explanation: cause the chart has 4 number 3
Plea help me get the answer
A sequence of numbers consists of natural numbers that are
not perfect squares. What is the 1000th member of this
sequence?
Given :
A sequence of numbers consists of natural numbers that are
not perfect squares.
To Find :
The 1000th member of this sequence .
Solution :
Now , [tex]31^2=961[/tex] and [tex]32^2=1024[/tex] .
So , there are 31 numbers before 1000 which are perfect square .
Therefore , the [tex]999^{th}[/tex] is 1000+31 = 1031 .
Also , the first perfect square after 1000 is 32 .
So , we have to continue to 1031 + 1 = 1032 to compensate for the 32nd square.
Therefore , the 1000th member of this sequence is 1032 .
Hence , this is the required solution .
PLEASE HELP I HAVE 20 POINTS The mass of the Eiffel Tower is about 9.16 ⋅ 10^6 kilograms. The mass of the Golden Gate Bridge is 8.05 ⋅ 10^8 kilograms. Approximately how many more kilograms is the mass of the Golden Gate Bridge than the mass of the Eiffel Tower? Show your work and write your answer in scientific notation. (10 points)
Step-by-step explanation:
8.05 * 10^8 - 9.16 * 10^6
= 10^6 * (8.05 * 10^2 - 9.16)
= 10^6 * (805 - 9.16)
= 10^6 * (795.84)
= 10^8 * 7.9584
Therefore the answer in scientific notation is 7.9584 * 10^8.
Alr im not smart ok sorry to not answer it right but i think its 2^2 kilograms