Answers
Answer:
43
Step-by-step explanation:
I got it right on my quiz.
Related Questions
One leg of a right triangle measures 8 inches and the hypotenuse 17 inches. determine the length of the other leg.
a. 9 inches
b. 13 inches
c. 15 inches
d. 17 inches
Answers
Which graph represents the function?
Answers
f(x) = (x +7)(x -7)/(x +7)
f(x) = x -7 . . . . . . . . . . . . . . x ≠ -7
The graph will be a line with a slope of 1 and a y-intercept of -7. It will have a "hole" at (-7, -14).
The lower-left selection is appropriate.
A quadrilateral has angles that measure 71°, 74°, 113°, and x°. What is the measure of x?
Answers
Bascially for answer 360-258
What is the sum of a 6-term geometric series if the first term is 23 and the last term is 1,358,127? 1,395,030 1,461,460 1,527,890?
Answers
The sum of 6 terms is
.. 23*(9^6 -1)/(9 -1) = 1,527,890 . . . . . . . . . . selection 3
Answer:
Last term is 1,527,890.
Step-by-step explanation:
In this question a geometric series has been given with
first term A = 23
6th term = 1,358,127
Number of terms n = 6
we have to calculate the sum of this geometric series
we know [tex]T_{n}=a(r)^{n-1}[/tex]
[tex]T_{6}=23.(r)^{6-1}=1358,127[/tex]
[tex]r^{5}=\frac{1358127}{23}=59049[/tex]
[tex]r = 59049^{\frac{1}{5} }[/tex]
r = 9
Now we know the formula to sum a geometric series is
[tex]S=a.\frac{r^{n-1} }{r-1}[/tex]
S = 23 × [tex]\frac{(9^{6-1)} }{(9-1)}[/tex]
S = 23 × [tex]\frac{(531441-1)}{8}[/tex]
S = [tex]\frac{23.(531440)}{8}[/tex] = 23 × 66430
S = 1,527,890
(Please Answer Quickly)
Algebra 2 Question! I will make sure to give a medal and pin the most helpful answer!
After a dreary day of rain, the sun peeks through the clouds and a rainbow forms. You notice the rainbow is the shape of a parabola. The equation for this parabola is y = -x^2 + 36. (Graph of a parabola opening down at the vertex (0,36) crossing the x–axis at (-6,0) and (6,0))
In the distance, an airplane is taking off. As it ascends during take-off, it makes a slanted line that cuts through the rainbow at two points. Create a table of at least four values for the function that includes two points of intersection between the airplane and the rainbow.
Analyze the two functions. Answer the following reflection questions in complete sentences. What is the domain and range of the rainbow? Explain what the domain and range represent. Do all of the values make sense in this situation? Why or why not? What are the x- and y-intercepts of the rainbow? Explain what each intercept represents. Is the linear function you created with your table positive or negative? Explain. What are the solutions or solution to the system of equations created? Explain what it or they represent.
Create your own piecewise function with at least two functions. Explain, using complete sentences, the steps for graphing the function. Graph the function by hand or using a graphing software of your choice.
Answers
y=x+8
"Create a table of at least four values for the function that includes two points of intersection between the airplane and the rainbow."
To find the intersection points we need to solve system of two equations:
[tex]y=- x^{2} +36 \\ y=x+36[/tex]
Solution are two points:
(-1,35) and (0,36)
Now we can create a table
x -1 0 1 2
f(x) 35 36 37 38
"What is the domain and range of the rainbow? Explain what the domain and range represent. Do all of the values make sense in this situation? Why or why not?"
The domain represents all possible values that x can have. The range represents all possible values that y can have.
In this example not all values make sense. Rainbow goes above ground and touches it.
Limitations exist if we have fraction, root, logarithm, trigonometric function... We do not have any of these so there are no limitations, so x can have any value.
Domain: -6≤x≤6 because x can not have smaller values than those at ground touch.
The formula for parabola is:
[tex]y=a x^{2} +b[/tex]
Depending on sign of [tex] x^{2} [/tex] the maximum or minimum value of y is equal to b. All other smaller or greater values are possible.
Range: 0≤y≤36 because y can not have smaller values than those at ground touch.
"What are the x- and y-intercepts of the rainbow? Explain what each intercept represents."
x- and y- intercepts represent points at which function touches x- and y- axis.
To find y- intercept we insert x=0 into equation:
y=0+36
y=36
To find x- intercept we insert y=0
0=-[tex] x^{2} [/tex]+36
[tex] x^{2} =36 \\ x_{1} =-6 \\ x_{2} =6[/tex]
"Is the linear function you created with your table positive or negative? Explain."
Function is positive if it lies above x-axis. Function is negative if it lies below x-axis.
Positive on interval: x ∈ <-6,∞>
Negative on interval: x ∈ <-∞,-6>
Not defined: x= -6
"What are the solutions or solution to the system of equations created?Explain what it or they represent."
We already found these solutions:
[tex]y=- x^{2} +36 \\ y=x+36[/tex]
Solution are two points:
(-1,35) and (0,36)
These solutions represent points of intersection of linear function and parabola.
"Explain, using complete sentences, the steps for graphing the function."
Step 1) we need to find domain and range
Step 2) we need to find x- and y- intercepts
Step 3) if the function is exponential we find minima and maxima
Step 4) we find at least three values for the function
The sum of three numbers is 12. The first number is the difference of the other two numbers. When you add the other two numbers and subtract 8, the result will be the first number. Find the numbers.
2, 4, 6
2, 5, 5
3, 7, 2
5, 10, -3
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You earn $10 a week for doing chores, and you have just been paid for completing eight weeks of chores. If you were paid $8 a week doing chores, how many weeks would it take to earn the same amount of money? weeks
Answers
Can someone please help me I would appreciate it please!?!
I well mark brainliest if its explained and right.
Answers
_____________________________________________________
The formula for the surface area, "S.A.", of a "cylinder":
S.A. = 2 π r² + 2 π r h ;
in which:
"S.A." = "surface area" of the cylinder; for which we wish to solve;
π = 3.14 (approximation we shall use) ;
r = radius = 5 cm (given; from figure);
h = height = 2 cm (given; from figure);
______________________________________
To solve for the surface area, "S.A." . let us plug in our known values, and solve:
S.A. = 2 π r² + 2 π r h ;
S.A. = 2 * (3.14) * (5 cm)² + 2 * (3.14) * (5 cm) * 10 cm) ;
= 2 * (3.14) * (5²) * (cm²) + 2 * (3.14) * 5* 10 * cm² ;
= 2 * (3.14) * (25) * (cm²) + 2 * (3.14) * 5* 10 * cm² ;
= 157 cm² + 314 cm² ;
= 471 cm² .
________________________________________________
The answer is: " 471 cm² " .
________________________________________________
Solve the equation using square roots. x2 + 10 = 9
A. Plus or minus the square root of 1.
B. no real number solutions
C. 1
D. –1
Answers
Subtract 10 from both sides.
[tex] x^2 = -1 [/tex]
Since the square of a number, x, equals a negative number, -1, the answer cannot be a real number because the square of a real number is always non-negative. Therefore, there is no real number solution to this equation.
Answer: B. no real number solutions
Answer:
no real number solutions
Step-by-step explanation:
A sample has a mean of m = 90. if each score in the sample is multiplied by 5, then what is the mean for the new distribution?
Answers
Then:
m= 90x5
m=450
Therefore, the answer is: The mean for the new distribution is 450 (m=450).
Final answer:
When each score in a sample is multiplied by a constant, the mean of the new distribution will also be multiplied by that constant, resulting in a new mean value of 450.
Explanation:
The mean of a sample is a measure of the average value of the data points in that sample.
When each score in a sample is multiplied by a constant, like 5 in this case, the resulting mean of the new distribution will also be multiplied by that constant.
In this scenario, since each score is multiplied by 5, the mean of the new distribution will be 5 times the original mean, giving a new mean of 450.
Find an equation for the circle that has center (−1, 4) and passes through the point (3, −5).
Answers
The correct answer for the equation of the circle with center (-1,4) and passes through point (3,-5) is [tex](x+1)^2 + (y-4)^2 = 97[/tex].
Given Co-ordinates:
Centre:
(-1,4)
Point of intersection:
(3,-5)
The standard equation of circle with center (h, k) is:
[tex](x-h)^2 + (y-k)^2 = r^2[/tex]
(h, k) are co-ordinates of center
Given in question:
h= -1
k = 4
Find radius of the circle:
distance between the center(-1,4) and the given point (3, -5).
[tex]r = [\sqrt{(x_{2}- x_{1})^2 + (y_{2}- y_{1})^2 }[/tex]
[tex]r = [\sqrt{((3- (-1))^2 + (-5-4)^2 }[/tex]
[tex]= \sqrt{(4)^2 + (-9)^2 }[/tex]
[tex]= \sqrt{16 + 81}[/tex]
[tex]= \sqrt{97}[/tex]
Now, Equation of circle:
[tex](x-(-1))^2 + (y-4)^2 = (\sqrt{97})^2[/tex]
[tex](x+1)^2 + (y-4)^2 = 97[/tex]
The equation of circle is [tex](x+1)^2 + (y-4)^2 = 97[/tex].
Learn more about Equation of circle here:
https://brainly.com/question/29288238
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The equation of the circle with center (-1, 4) and passing through the point (3, -5) is (x + 1)² + (y - 4)² = 97.
Explanation:The subject of this question is geometry, specifically about the equations of circles. We start by noting that the general equation of a circle is (x-h)² + (y-k)² = r², where (h, k) are the coordinates of the circle's center and r is the radius of the circle.
Here, the center of the circle is at (-1, 4). We don't know the radius yet, but we know that the circle passes through the point (3, -5). The radius is the distance from the center of the circle to any point on the circle. We can find this using the distance formula which is d = sqrt[(x₂ - x₁)² + (y₂ - y₁)²].
Substituting the given points into the distance formula, we get: r = sqrt[(3 - (-1))² + (-5 - 4)²] which simplifies to r = sqrt[(4)² + (-9)²] = sqrt[16 + 81] = sqrt[97].
Now we can write the equation of the circle, substituting the center and radius values into the equation. This gives us: (x - (-1))² + (y - 4)² = sqrt[97]² which simplifies to (x + 1)² + (y - 4)² = 97.
Learn more about Equations of Circles here:https://brainly.com/question/29288238
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Randy bought a zero coupon bond and a TIPS 5 years ago for $2,500 each. Both had 10 years to maturity. The TIPS's coupon was 2% while the zero coupon bond will be redeemed for $3,000. What should the maximum real value of his bonds be if he tries to sell them today? Select the best answer from the choices provided. $250 $750 $5,250 $5,750
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Solve the system of equations using the substitution method.
{4x+5y=7
{y=3x+9
Enter your answers in the boxes.
x=
y=
Answers
y=3x+9
1) 4x+5(3x+9)=7 2) y=3(-2)+9
y= -6 +9
4x+15x+45=7 y=3
19x+45=7
19x= -38
x= -2
x is -2 and y is 3
The marketing department of a sports supply store wants to estimate the percentage of adults in the town who belong to a gym.
Which statement describes a method that will help the marketing department accurately estimate this percentage?
A)Select the store’s first 20 customers every day for one week, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.”
B)Take a random sample of adults at the local park, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.”
C)Take a random sample of adults in the town, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.
D)Take a random sample of the store’s adult customers, and ask what percentage of their friends belong to a gym. Calculate the mean of the responses.
Answers
B) While it does not have necessarily the same amount of bias as sampling people in the sports supply store, people that go to a park are generally more likely to be people that exercise or have a gym membership.
C) Taking a random sample of people in town is a good way to get a non-biased sample. They are not necessarily predisposed to answer your question one way or another.
D) For the same reason as choice A, this is a biased sample.
C is the best choice.
marion is making trail mix for a group camping trip. she buys 3 pounds of granola for $3 per pound and 0.75 pounds of raisins for $2 a pound. what equation can you use to find the price per pound of the trail mix?
Answers
x-------------> pounds of granola-----------> $3 per pound
y-------------> pounds of raisins-----------> $2 per pound
z------------ > price per pounds of the trail mix
we have that
z=3x+2y--------------------- > this is the equation
for x=3 pounds of granola and y=0.75 pounds of raisins
z=3*3+2*0.75=$10.5 of trail mix
It's B on edg. 3(3) + 0.75(2) = (3 + 0.75)x
Mrs. Smith and her daughter Laura want to learn ballet. The cost of beginning ballet classes for kids is $3,200 per year, and it increases by 2% every year. The cost of beginning ballet classes for adults is $4,800 per year, and it increases by 2.7% per year. Which function can Mrs. Smith use to determine the total cost of their ballet classes, T(x), after x years?
Answers
Since it increases by a percentage every year we will use an exponential function.
C(x) = 3200(1+0.02)ˣ. This comes from the $3200 for the first year, and 2% increase every year is 0.02. Add this to 1 because we have all of the first year's cost, 100%, and the additional 2%.
A(x) = 4800(1+0.027)ˣ. This comes from the $4800 for the first year, and 2.7% increase every year is 0.027. Add this to 1 because we have 100% of the first year's cost with an additional 2.7%.
T(x) = 3200(1+0.02)ˣ+4800(1+0.027)ˣ=3200(1.02)ˣ+4800(1.027)ˣ
Describe how to find linear expressions for the possible dimensions of a rectangular prism with a volume of 8k^3 +26k^2+ 6k.
Answers
For this case, the first thing you should do is rewrite the expression.
We have then:
Step 1:
Take out common factor.
8k ^ 3 + 26k ^ 2 + 6k
2k * (4k ^ 2 + 13k + 3)
Step 2:
Factor quadratic expression.
2k * (4k ^ 2 + 13k + 3)
2k * (4k + 1) * (k + 3)
Answer:
to find linear expressions for the possible dimensions of a rectangular we rewrite the expression:
2k * (4k + 1) * (k + 3)
Describe the number and type of roots for the polynomial (how many real and complex?). x3 + 5x2 – 4x – 2 = 0
Answers
A graph shows there to be 3 real roots, two of which are negative. Thus there are no complex roots.
helpppppppppppppppppppppppp
Answers
1 / 4x
Explanation:
(4x^3) * (2x)^-4 = 4x^3 * 2^-4 * x^-4
= (4x^3) / (2^4 * x^4)
= (1/4) * (1/x)
= 1 / 4x
Hope this helps :)
(4x ^ 3) * (2x) ^ - 4
Using properties of exponents we have:
(4x ^ 3) / (2x) ^ 4
Rewriting:
(4x ^ 3) / 16x ^ 4
(x ^ 3) / 4x ^ 4
(1) / (4x)
answer:
An equivalent expression is:
(1) / (4x)
option 1
Use systems of equations to solve the problem.
A farmer raises wheat and oats on 180 acres. She plants wheat on 20 more acres than she plants oats on. How many acres of each crop does the farmer plants?
Answers
Y = wheat, x = oats
Y = x + 20. In the 1st equation, get y by itself getting y = 180 - x.
So 180 - x = x + 20. Subtract x on both sides to get 180 - 2x is 20. Subtract 180 to both sides is -2x = -160. Divide -2 to both sides is x = 80. So 80 + 20 is 100 wheat, and 80 oats of acres.
80 acres oats
100 acres wheat
What is the question
Answers
2x - 2y - 5y + 5z - 2x - y + 3z; now, we need to list like-terms together and simplify.
2x - 2x; 0
2y - y; -3y
5z + 3z; 8z
Now, let's put this into an expression;
-3y + 8z.
From our answer choices in the image above, the last option "D.) -3y + 8z" is the correct answer.
I hope this helps!
The current San Francisco cable railway is driven by two large 14-foot-diameter drive wheels, called sheaves. Because of the figure-eight system used, the cable subtends a central angle of 270°on each sheave. Find the length of cable riding on one of the drive sheaves at any given time.
Answers
The angle θ in this case is 270°, while the radius is 7 feet, diameter is 14 feet
Thus the length of the of the cable will be;
=(270/360)× 22/7×14
= 0.75 × 44
= 33 feet
Answer:
The length of the cable is around 32.97 feet.Step-by-step explanation:
The problem is about a circular sector, where the angle is 270° and the lenght of the subtended arc is the arc is the unknown variable.
The radius of the drive wheel is
[tex]r=\frac{d}{2}=\frac{14}{2}=7ft[/tex]
The central angle is 270°.
The length of the arc is
[tex]L=\frac{2\pi r \theta}{360\°}[/tex]
Replacing all values, we have
[tex]L=\frac{2(3.14)(7)(270\°)}{360\°}=\frac{11869.2}{360} \approx 32.97[/tex]
Thereofre, the length of the cable is around 32.97 feet.
what is the product (7x^3y^3)(3x^5y^8)
a)10x^5y^15
b)10x^10y^24
c)21x^7y^11
d)21x^10y^24
Answers
You have studied polynomials consisting of constants and/or variables combined by addition or subtraction. The variables may include exponents. The examples so far have been limited to expressions such as 5x4 + 3x3 – 6x2 + 2x containing one variable, but polynomials can also contain multiple variables. An example of a polynomial with two variables is 4x2y – 2xy2 + x – 7.
Many formulas are polynomials with more than one variable, such as the formula for the surface area of a rectangular prism: 2ab + 2bc + 2ac, where a, b, and c are the lengths of the three sides. By substituting in the values of the lengths, you can determine the value of the surface area. By applying the same principles for polynomials with one variable, you can evaluate or combine like terms in polynomials with more than one variable.
The product of (7x²y³) and (3x⁵y⁸) is obtained by multiplying the coefficients and adding the exponents of like terms, resulting in c) 21x⁷y¹¹.
To find the product of the two algebraic expressions (7x²y³) and (3x⁵y⁸), we simply multiply the coefficients and add the exponents of corresponding variables:
Multiply the coefficients: 7 * 3 = 21
Add the exponents of x: x² * x⁵ = x²⁺⁵ = x⁷
Add the exponents of y: y³ * y⁸ = y³⁺⁸ = y¹¹
Therefore, the product is 21x⁷y¹¹, which corresponds to option (c).
Anita brings 6 dolls to her grandmas house. These dolls represent 20% of Anita's doll collection. What is the total number of dolls in Anita's dolls collection?
Answers
6=20%*x
6=20/100 *x
6*100/20=x
30=x
the total number of dolls is 30
Answer:
30 is your answer
Step-by-step explanation:
Which of the following data sets represents a positive correlation?
A
B
C
Answers
It is B) because the y-value is increasing as the x-value is increasing.
Are elite runners thinner than the average person? Devon thinks that skin thickness of elite runners is thinner than the average person. He compares a data set of elite runners to regular people by looking at the skin thickness. Which statement correctly compares the two groups?
A) The skin thickness of the elite runners varied by about 11 mm.
B) The skin thickness of the average person varied by about 11 mm.
C) The skin thickness of elite runners is on average about 11 mm thinner than that of the average person.
D) The skin thickness of the average person is on average about 11 mm thinner than that of the elite person.
Answers
I hope it's right!!!!
Answer:
c is the answer
Step-by-step explanation:
How to estimate the square root of a number that is not a perfect square?
Answers
I need help on how to convert the radian into degrees for 7pi/10 !!
Answers
[tex] \frac{7}{10} \pi * \frac{180}{\pi}= 126 [/tex]
We divide by pi to get rid of it because we want the answer in degrees:
So your answer is 126°.
The medicine capsule shown consists of a cylinder with a hemisphere at each end. The total length of the capsule is 18 millimeters. The diameter is 7 millimeters. Which choice is the best approximation of the total surface area of the capsule? Use 3.14 to approximate pi.
Answers
Answer:396
Step-by-step explanation:
Which of the following best explains why one graph appears skewed and one graph appears symmetric?
The intervals on the x-axis of the histogram are too large.
The interval on the y-axis of the histogram is too small.
The interval on the x-axis of the histogram is inconsistent.
The interval on the box-and-whisker plot is too small.
Answers
The interval on the X-Axis of the Histogram is inconsistent:
An Histogram is a graphic representation of the frequency of values. It should include all the data range on the x-axis. In this case, the x-Axis should include all intervals from 0 to 24 years, but in the graph the intervals "jump" from 10-14 to 20-24.
This inconsistency causes the difference between the two graphics because the two of them should be skewed to the left, according to the age distribution.
Answer:
The interval on the X-Axis of the Histogram is inconsistent
Step-by-step explanation:
edge