the mean of that set is 31
Answer:
31
Step-by-step explanation:
Add all the numbers:
29 + 26 + 35 + 34 = 124
Divide by 4 (because there are 4 total numbers):
124/4 = 31
Two streets form an intersection. C and D are supplementary
angles. If the measure of C is 140° and the measure of D is
two times the value of x, what is the value of x?
Answer:
20degrees
Step-by-step explanation:
The sum of angle C and D is 180 degrees since they are supplementary
Given
m<C = 140 degrees
m<D = 2x
Taking the sum and equating to 180
140 + 2x = 180
2x = 180-140
2x = 40
x = 40/2
x = 20 degrees
Hence the value of x is 20degrees
Quien responda la operación se lleva 100 puntos en mi otra cuenta
Answer:
no me acuerdo
Step-by-step explanation:
sorry
Answer:
13.824
aclaracion: eso que esta al lado del signo de multiplicacion es 4 verdad?
en caso de que en realidad sea un 1 la respuesta es
0.216
3. How many possible negative real zeros are there for the polynomial g(x) = 2x4 + x3 - 4x + 1?
A. 1
B. 3
C. 2
D. 5
4) The path of a satellite orbiting the earth causes it to pass directly over two
tracking stations A and B, which are 60 km apart. When the satellite is on one side of
the two stations, the angles of elevation at A and B are measured to be 86.4 ° and
85 °, respectively.
Find how far the satellite is from station A and how high the satellite is above the
ground. Round your answers to 2 decimal places.
Answers:
Satellite is approximately 2446.43 km from station A.Satellite is approximately 2441.61 km above the ground.=========================================================
Explanation:
I'm assuming tracking stations A and B are at the same elevation and are on flat ground. In reality, this is likely not the case; however, for the sake of simplicity, we'll assume this is the case.
The diagram is shown below. Points A and B describe the two stations, while point C is the satellite's location. Point D is on the ground directly below the satellite. We have these lengths
AB = 60 kmAD = xCD = hFocusing on triangle ACD, we can apply the tangent rule to isolate h.
tan(angle) = opposite/adjacent
tan(A) = CD/AD
tan(86.4) = h/x
x*tan(86.4) = h
h = x*tan(86.4)
We'll use this later in the substitution below.
--------------------
Now move onto triangle BCD. For the reference angle B = 85, we can use the tangent rule to say
tan(angle) = opposite/adjacent
tan(B) = CD/DB
tan(B) = CD/(DA+AB)
tan(85) = h/(x+60)
tan(85)*(x+60) = h
tan(85)*(x+60) = x*tan(86.4) ............. apply substitution; isolate x
x*tan(85)+60*tan(85) = x*tan(86.4)
60*tan(85) = x*tan(86.4)-x*tan(85)
60*tan(85) = x*(tan(86.4)-tan(85))
x*(tan(86.4)-tan(85)) = 60*tan(85)
x = 60*tan(85)/(tan(86.4)-tan(85))
x = 153.612786190499
--------------------
We'll use this approximate x value to find h
h = x*tan(86.4)
h = 153.612786190499*tan(86.4)
h = 2441.60531869599
h = 2441.61 km is how high the satellite is above the ground.
Return to triangle ACD. We'll use the cosine rule to determine the length of the hypotenuse AC
cos(angle) = adjacent/hypotenuse
cos(A) = AD/AC
cos(86.4) = x/AC
cos(86.4) = 153.612786190499/AC
AC*cos(86.4) = 153.612786190499
AC = 153.612786190499/cos(86.4)
AC = 2446.43279498247
AC = 2446.43 km is the distance from the satellite to station A.
PLEASE PLEASE HELP MEE!!
Answer:
The equivalent functions are;
[tex]g(x) = 3^{-2 \cdot x }[/tex]
[tex]g(x) = 9^{-x}[/tex]
[tex]g(x) = \left (\dfrac{1}{9} \right )^x[/tex]
Step-by-step explanation:
The given function is f(x) = (1/3)^(2·x)
[tex]f(x) = \dfrac{1}{3} ^{2 \cdot x}[/tex]
The given function can be simplified as follows;
[tex]f(x) = \dfrac{1}{3} ^{2 \cdot x} = 3^{-1 \cdot2 \cdot x } = 3^{-2 \cdot x } = g(x)[/tex]
∴ [tex]f(x) = \dfrac{1}{3} ^{2 \cdot x}[/tex] ≡ [tex]g(x) = 3^{-2 \cdot x }[/tex]
2) The given function can also be simplified as follows;
[tex]f(x) = \dfrac{1}{3} ^{2 \cdot x} = \left (\dfrac{1}{3} ^2\right )^x = \left (\dfrac{1}{9} \right )^x = (9^{-1}) ^x} = 9^{-1 \times x} = 9^{-x} = g(x)[/tex]
∴ [tex]f(x) = \dfrac{1}{3} ^{2 \cdot x}[/tex] ≡ [tex]g(x) = 9^{-x}[/tex]
3) The given function can also be simplified as follows;
[tex]f(x) = \dfrac{1}{3} ^{2 \cdot x} = \left (\dfrac{1}{3} ^2\right )^x = \left (\dfrac{1}{9} \right )^x = g(x)[/tex]
∴ [tex]f(x) = \dfrac{1}{3} ^{2 \cdot x}[/tex] ≡ [tex]g(x) = \left (\dfrac{1}{9} \right )^x[/tex]
A shoe store uses a 50% markup for all of the shoes it sells. What would be the selling price of a pair of shoes that has a wholesale cost of $59?
Answer:
$88.5Step-by-step explanation:
[tex]59+50\%\times59=59+0.5\times59=59+29.5=88.5[/tex]
What is the slope of the line that passes through the points (-2,-5) and (-3,-6) write your answer in simplest form
Answer:
y = x - 3
Step-by-step explanation:
What shape will the vertical cross-section of
a cube be?
Answer:
a triangle;
Three faces of the cube meet to form the vertex, so the cross section is a two-dimensional figure with three sides
Step-by-step explanation:
The following histogram represents the number of hours students practice each week for band
How many hours did most students practice?
Answer:
Most Students practiced 5 to 6 hours
I need help pleaseeeee
Answer:
The answers are A, E and F because the amount Darren's friend adds to his savings each week is a faster rate or higher amount than $40 dollars:
y = 75x(higher than 40) + 120
y = 120 + 50x(higher than 40)
y = 87x(higher than 40) + 120
How can you tell that the following number is a rational number?
0.251
A. It is a rational number because the decimal terminates
B. It is a rational number because there is a value of 0 in the ones place
C. It is a rational number because the sum of the digits is less than 10
D. It is a rational number because it is not a repeating decimal
Answer:
In order to be called a 'rational' number, a number must be the quotient that results when one non-zero integer is divided by another. An irrational number can be written as a decimal, but not as a fraction. Your number is (3 sqrt(2)) / sqrt(2) = 3, and is a rational number indeed.
please help with this!!!!!!
Answer:
3,-2 (dark blue)
Step-by-step explanation:
plug the answer back into x:
(3-3)(-2+2)=0
(0)(0)=0
The solution satisfies the equation!
Find the geometric mean between 4 and 20.
Answer:
4[tex]\sqrt{5}[/tex]
Step-by-step explanation:
Geometric mean is when you multiply the two numbers 4 and 20 and then take the square root of the product.
So 4 x 20 = 80, and the [tex]\sqrt{80}[/tex] = 4[tex]\sqrt{5}[/tex]
However-- that's if you meant finding the geometric mean of 4 and 20 when you said "between"
A store decreases its prices on all items by 30%. A pair of shoes that originally cost x dollars before the sale now costs x – 0.3x. What is another expression to represent the new cost of any pair of shoes in the store?
Answer:
what are the answer choices ma'am or sir
Step-by-step explanation:
Answer:
x-0.3
Step-by-step explanation:
Enter the number that makes the equation true
Answer:
80
Step-by-step explanation:
First of all, before you do anything to compute the answer, you can see that there is (–13/100) on both sides of the equation. You can cancel them out, since they're the same thing.
Now, you're left with:
[tex]0.8 = \frac{}{100}[/tex]
This is also read as 0.8 is the same thing as [how many] hundredths.
You should know that 0.8 = eight tenths.
So if you move the decimal point right once, you'll get:
0.80
Which is also eighty hundredths.
Your answer would be:
[tex]0.8 = \frac{80}{100}[/tex]
which is 80.
To check your answer, you can also do:
80/100
Because the fraction bar can also be read as "divided by."
You will get 0.8.
write the equation of a line from the graph
Answer:
you take the graphs information and you write it in an equation.
Step-by-step explanation:
you take the graphs information and you write it in an equation.
please help me. i am so confused please
Answer:
what is the question above what you are showing in the picture ?
Step-by-step explanation:
it will help a lot
Find the 25th term in the arithmetic sequence: 23, 223, 423, 623,...
Answer:
823
Step-by-step explanation:
count by 30s to get the answer thats how i got 823
mr rolando sold the house and that at 10, 500,000,000.00 if he will receive 4% commansion, how much his commansion?
Answer:
$420,000,000
Step-by-step explanation:
Multiply 10,500,000,000 by .04.
Hope this helps!
Explain in 1-2 sentences how you identify
proportional relationship
using a table or graph.
PLEASE helpppp
Answer:
You can tell because, as x increases/decreases, y increases/decreases at the same rate EACH TIME. This way, no matter how many times the proportions increase OR decrease, the ratio between x and y always stays the same.
If you answer both questions properly I might give you the brainlies
Answer:
32
Step-by-step explanation:
Solve for x.
−1.5x−3.1<5.5
Drag and drop a number or symbol into each box to correctly complete the solution.
Answer:
x <-5.73
Step-by-step explanation:
Answer:
5.733333333...
Step-by-step explanation:
The answer is positive and has a repeating 3 at the end.
Sally puts $2,500 in a bank account. She takes it out 10 years later and with interest, now has $4,100. What is the percent change?
Answer:
The percentage increase is 64%
Step-by-step explanation:
Answer:The percentage increase is 64%
Step-by-step explanation:
56 + (- 56)
Please needed as possible
Answer:
0
Step-by-step explanation:
56-56=0
Answer:
0
Step-by-step explanation:
if you add than subtract in an equation like that, just ignore the addition and subtract.
The product of
two integers is – 24. The difference
between the two integers is 14. The sum of
the two integers is 10. What are the two
integers?
Answer:
a= 12
b=-2
Step-by-step explanation:
12 x -2 = -24
12 - (-2) = 14
12 + (-2) = 10
The two integers are 12 and -2.
What are simultaneous equation?In mathematics, a set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.
Let x and y be the two integers.
So it is given that,
Product of two integers = – 24
⇒ xy = - 24 ....(i)
The difference between the two integers = 14
⇒ x - y = 14 ...(ii)
The sum of the two integers = 10
⇒ x + y = 10 ....(iii)
Now adding equation (ii) and (iii) we get,
2x = 24
⇒ x = 12
Putting the value of x in equation (i) we get,
12y = - 24
⇒ y = - 2
So the required integers are 12 and - 2.
To learn more about simultaneous equation:
https://brainly.com/question/17726417
#SPJ2
Convert 9 cubic meters into cubic feet. Round your answer to the nearest whole number.
Answer:
318ft³
Step-by-step explanation:
The specific formula conversion for an APPROXIMATE answer would be to multiply the m^3 by 35.315 to get ft^3.
Anna hiked 95/8 miles in 23/4 hours. How fast did she walk overall?
A) 31/2 miles per hour
B) 31/4 miles per hour
C) 31/3 miles per hour
D) 35/3 miles per hour
Step-by-step explanation:
Your answer is right here...
What solid figure is shown below?
Answer:
froggy lookin kinda funky foo
Write an equation in point-slope form of the line that passes through the two given
points.
(4,7) and (5, 1)
Answer:
y-7=-6(x-4)
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(1-7)/(5-4)
m=-6/1=-6
y-y1=m(x-x1)
y-7=-6(x-4)
add 1/5 add 2/7 plz help
Answer:
17/35
Step-by-step explanation:
Answer:
17/35
Step-by-step explanation:
Math-way