Answers
Answer:
a.............
........
Answer:
A.
Step-by-step explanation:
So the d in this case is 2. D is the number of kilometers Erica walked.
T is the vertical distance.
Find the right choice:
After she had walked 2km along the trail, Erica's vertical distance from the top of the valley was equal to T kilometers.
Related Questions
Please answer. Question in picture.
Answers
Ans
Step-by-step explanation:
Solve for x rounded to the nearest tenth.
sin 52 =x/7
Answers
Answer:
6.9
Step-by-step explanation:
sin(52)=x
x=7sin(52)
Please answer this question and i will mark you brainliest.
Answers
Answer:
4 altogether
0,1 + 1, 1 = 1 RA
0,1 + 2,1 = 1 RA
0.2 +1, 2 = 1 RA
0,2 +2,2 = 1 RA
Step-by-step explanation:
3. Give two systems of equations that would be easier to solve by substitution
than by elimination. Then give two systems that would be easier to solve with
elimination. Finally, explain how you decide whether to use elimination or
substitution to solve a system.
Answers
Answer:These techniques for elimination are preferred for 3rd order systems and higher. They use "Row-Reduction" techniques/pivoting and many subtle math tricks to reduce a matrix to either a solvable form or perhaps provide an inverse of a matrix (A-1)of linear equation AX=b. Solving systems of linear equations (n>2) by elimination is a topic unto itself and is the preferred method. As the system of equations increases, the "condition" of a matrix becomes extremely important. Some of this may sound completely alien to you. Don't worry about these topics until Linear Algebra when systems of linear equations (Rank 'n') become larger than 2.
explanation Step-by-step explanation:ust to add a bit more information, "Elimination" Can have a variety of other interpretations. Elimination techniques typically refer to 'row reduction' to achieve 'row echelon form.' Do not worry if you have not heard of these terms. They are used in Linear Algebra when referring to "Elimination techniques"
Just to add a bit more information, "Elimination" Can have a variety of other interpretations. Elimination techniques typically refer to 'row reduction' to achieve 'row echelon form.' Do not worry if you have not heard of these terms. They are used in Linear Algebra when referring to "Elimination techniques"
Gaussian Elimination
Gauss-Jordan Elimination
LU-Decomposition
QR-Decomposition
These techniques for elimination are preferred for 3rd order systems and higher. They use "Row-Reduction" techniques/pivoting and many subtle math tricks to reduce a matrix to either a solvable form or perhaps provide an inverse of a matrix (A-1)of linear equation AX=b. Solving systems of linear equations (n>2) by elimination is a topic unto itself and is the preferred method. As the system of equations increases, the "condition" of a matrix becomes extremely important. Some of this may sound completely alien to you. Don't worry about these topics until Linear Algebra when systems of linear equations (Rank 'n') become larger than 2.
Substitution is the preferred method for 2 equations in 2 unknowns. The constants are unimportant other than having a non-zero determinant. It is always easy to find multiplicative factors using LCMs of one variable or the other to allow substitution into the other equation:
Example:
4X + 5Y = 9
5X - 4Y = 1
Notice that 20 is a LCM of either the X or Y variable. So multiply the first by 4 and the second by 5 and then adding the two (Y's will drop out allowing for substitution)
4(4X + 5Y = 9)
5(5X - 4Y = 1)
Multiplying to produce the LCM factors:
16X + 20Y = 36
25X - 20Y = 5
Adding the equations
41X = 41
X = 1
Substitution into either equation yields
Y = 1
What is the volume of the cylinder below?
A. 256 units 3
B. 1024 units 3
C. 64x units 3
D. 128 units 3
Answers
Answer:
A 256 units 3
Step-by-step explanation:
The volume of the cylinder given below is 256π units .
Given,
Radius of cylinder = 8 units
Height of cylinder = 4 units
Now,
Volume of cylinder is given by
V = π×r²×h
r = radius of base
h = height of cylinder
So,
Substitute the values in the formula,
V = π × 8² ×4
V = π × 64 × 4
V = 256π units .
Thus the volume of the cylinder is 256π units .
Know more about cylinder,
https://brainly.com/question/15891031
#SPJ2
explain how finding the volume of a cylinder is similar to finding the volume of a prism
Answers
Answer:
Finding the volume of a cylinder is similar to finding the volume of a prism because they share the same formula, that is:
V = base area x height
Hope this helps!
:)
Answer:
Volume of a prism is base area × height
Base of a cylinder is a circle,
Base area = pi× r²
Volume of cylinder = pi × r² × h
Which is the same as base area × height
Tom likes to go over to his friend's house almost every night to play video games. They usually spend 3 hours a night playing the video game together. Last week, they spent a total of 15 hours playing the video game. If Tom went over every night, he would spend 21 hours playing the video game. Also, Tom's friend's mom gives Tom two cookies each time he is there. How many cookies does Tom get last week?
Answers
Answer:
it is 10
Step-by-step explanation:
Answer:
he got ten cookies because since they play for 3 hours a night you do 15/3 to get 5 nights. since his friends gets 2 cookies everyday he is there 5*2 is 10 cookies last week
Step-by-step explanation:
i was reading this i was like what do the video games have to do with it
7. The original price of a bicycle is $700. It is discounted by 50%. What is the sales price of
the bike?
Answers
Answer:
$350.
Step-by-step explanation:
50% translates over to 1/2, so you take the price of $700 and multiply it by 1/2. You then get $350, which is half of $700.
i will mark brainliesttt!
Answers
Answer:
d = 52
Step-by-step explanation:
The two angles form a straight line so they are supplementary
Supplementary angles add to 180
d+128 = 180
Subtract 128 from each side
d+128-128 = 180-128
d = 52
Answer:
52
Step-by-step explanation:
so to solve this one, you have to get the value of d.
for this you need to first subtract the given angle from 180.
180-128=52
that is the value of d :) if u need any more help post a question, ill follow you!
25 points and brainly please help quick
Doug records how many miles and how long he rides his bike each day on a scatter plot.
Doug analyzes his data on the scatter plot and concludes that the more time he rides his bike, the slower his speed is. In two or more complete sentences, explain why or why not it is possible for Doug to make his conclusion based on his data.
Answers
Answer:
the plot shows he had a speed of 0.20 miles but the longer he travels the slower he gets, so his last speed is 0.17 miles a minute
Step-by-step explanation:
In a relay race, Nancy ran her part in 15.25 seconds, John ran his part in 13.8 seconds, Sylas ran his part in 16.4 seconds. What wasthe total time for the three runners
Answers
Answer:45.45
Step-by-step explanation:
First add 15.25 and 13.8 together and with hat answer then you will go ahead and add the answer and 16.4 together and that will give you your total hope this helps
A mother has one allele for color blindness and one allele for normal vision
What is the probability that her gamete will have the allele for color
blindness?
A. 0%
O B. 25%
C. 75%
D. 50%
Answers
Answer:
i say 50%
Step-by-step explanation:
if there is an outcome of 2
then there is a 50% chance she either has normal visions or color blindness
Answer:D
Step-by-step explanation:
Joe has 1/2 of a yard of fabric that needs to be cut into thirds. What is the fractional part of each third?
Answers
Answer:
1/6 of a yard
Step-by-step explanation:
1/2 of a yard x 1/3 of a yard = 1/6
Please answer CORRECTLY , Will mark brainliest !!!!!!
Answers
Answer:
answer c
Step-by-step explanation:
khan
Answer:
Step-by-step explanation:
C
The standard configuration for an Arizona license plate is 3 digits (0 - 9) followed by 3 letters (of 26). If you can not repeat digits or letters, how many plates (NO COMMAS NEEDED) can be made?
Answers
Answer:
11232000 plates
Step-by-step explanation:
To find the number of plates that can be made, we just need to check for each space filled how many possible values it can take:
We have 3 digits that can not repeat, so the first digit has 10 possible values (all digits from 0 to 9), the second digit has 9 possible values (as one is already taken) and the third digit has 8 possible values.
For the letters, the first one has 26 possible values, the second one has 25 and the third one has 24.
So the number of different plates is the product of all these possibilities for each digit and letter:
10 * 9 * 8 * 26 * 25 * 24 = 11232000 plates
Janitors at Strickland High School empty 25 trash cans each day. The design of
each trash can is shown below.
Height- 4.5 inches
Length- 3 inches
Width- 2 inches
What is the total volume of trash that the janitors empty each day?
Round to the nearest tenth and don't forget to include units. The tick mark
on the numbers represents inches.
Answers
Answer: 675 cubic inches of trash
Step-by-step explanation:
Hi, to answer this question, first, we have to calculate the volume of each trash can :
Volume of a rectangular prism: width x length x height
Replacing with the values given:
V = 2 x 3 x 4.5= 27 cubic inches
Since there are 25 trash cans every day, we have to multiply the volume of each one by 25.
27 x 25 =675 cubic inches of trash
Feel free to ask for more if needed or if you did not understand something.
What is the volume of a cylinder, in cubic meters, with a height of 5 meters and a base
diameter of 6 meters? Round to the nearest tenths place.
Answers
Answer:
the answer is 141.3 cubic meters ( if you use 3.14 for pi)
Step-by-step explanation:
the volume equation of a cylinder is
V= π[tex]r^{2} h[/tex]
we have to change the 6 meters to 3 meters because the equation for the volume of a cylinder wants the radius not the diameter
V= 3.14 × [tex]3^{2}[/tex] × 5
that equals 141.3
Answer:
141.4 meters3
Step-by-step explanation:
h\hspace{3px}=\hspace{3px}5\hspace{30px}d\hspace{3px}=\hspace{3px}6
h=5d=6
identify variables
r=
r=
\,\,3
3
radius is half of the diameter
V=
V=
\,\,\pi r^2h
πr
2
h
use volume of a cylinder formula
V=
V=
\,\,\pi(3)^2(5)
π(3)
2
(5)
substitute variables into formula
V=
V=
\,\,141.371669412
141.371669412
multiply
V=
V=
\,\,141.4\text{ meters}^3
141.4 meters
3
round to the nearest tenths place
ΔQRS is an isosceles triangle. What is the length of RT¯¯¯¯¯¯ ? Round to the nearest hundredth. Enter your answer in the
Answers
Answer:
RT = 9.200 cm
Step-by-step explanation:
[tex]RT = \sqrt{ {11}^{2} - {6}^{2} } \\ RT = \sqrt{121 - 36} \\ RT = \sqrt{85} \\ RT = 9.219 \: cm \\ RT = 9.200 \: cm[/tex]
Please give me the answer
Answers
Answer:
37°
Step-by-step explanation:
As we know the sum of angles of a triangle is 180 degrees.
Therefore,
angle A + angle B + angle C = 180°
In the given picture two angles are given and we have to find out the third angle.
x° + 45° + 98° = 180°
x° + 143° = 180°
x° = 180° - 143°
x° = 37°
The value of x in the triangle shown is 37°.
Janet saved $3500 in 2007. If each year after
this she saves $750 more than the year before,
how much will she save in 2012?
(A) $5750
(B) $6500
(C) $7250
(D) $8000
(E) $8750
Answers
Answer:
7250
Step-by-step explanation:
The equation would be as follows
3500+750x=y
Between 2012 and 2007, there are 5 years, thus x=5
3500+750(5)=7250
Which measurement shows how much space is inside a rectangular prism?
A.
faces
B.
area
C.
perimeter
D.
volume
Answers
Answer:
D: volume
Step-by-step explanation:
What is the value of y
Answers
Answer:
42
Step-by-step explanation:
We know that in the triangle, there are 3 values. 2 of them are y and 1 of them is unknown.
So, in order to find the value of the unknown number, they gave us an angle supplementary to the unknown.
Supplementary angles are angles that add up to 180 degrees. So the equation for that would be x+88=180.
By subtracting from both sides, we get x=92. So, the unknown angle is 92.
To solve for y, we have to do the same thing, but since we have 2 y's the equation will be 2y+92=180. (92 is the interior angle, aka the unknown one)
Solve: -92 -92
2y=88
/2 /2
y=42
Hence, y is equal to 42.
(edit: sorry they don't line up correctly)
What is the distance from the right center field fence to third base? Show all of your work and round
your answer to the nearest tenth of a foot
Answers
Answer:
[tex]381.5\,\,\,ft[/tex]
Step-by-step explanation:
Given: Figure
To find: distance from the right center field fence to third base
Solution:
In a right angled triangle,
using Pythagoras theorem, square of hypotenuse is equal to sum of squares of base and perpendicular.
In ΔBAC,
[tex]BC^2=AB^2+AC^2\\(392)^2=x^2+(90)^2\\153664=x^2+8100\\153664-8100=x^2\\145564=x^2\\\sqrt{145564}=x\\381.5\,\,\,ft=x[/tex]
So,
distance from the right center field fence to third base is 381.5 foot.
Which of the following closed sets of ordered pairs is not a function?
A
{(3, 2), (4, 6), (5, 8)}
B
{(2, 1), (3, 2), (4, 3)}
C
{(1, 2), (2, 5), (1, 3)}
D
{(2, 4), (5, 3), (4, 1)}
Answers
Answer:
C
Step-by-step explanation:
if 3/x=5/y then what is the value of y/x?
plss help
Answers
Answer:
Step-by-step explanation:
3/x=5/y
3y/x=5
y/x=5/3
Simplify the expression.
4 (2m – 6) – 3p – 2m + 8
Answers
-------------------------------------------------------------------
4 (2m – 6) – 3p – 2m + 8
Expand 4 (2m – 6):
8m - 24– 3p – 2m + 8
Simplify 8m - 24– 3p – 2m + 8:
Group like terms:
8m - 2m - 3p - 24 + 8
Add similar elements:
6m - 3p - 24 + 8
Add subtract the numbers:
6m - 3p - 16
Your Answer Is 6m - 3p - 16
plz mark me as brainliest if this helped :)
What is the shape of the cross section of the figure that is perpendicular to the rectangular base and passes through the top vertex of the figure? A rectangular pyramid. a parallelogram that is not a rectangle a rectangle a triangle that must have the same dimensions as one of the faces a triangle that does not have the same dimensions as one of the faces
Answers
Answer:
D
Step-by-step explanation:
The figure is a rectangular pyramid. The cross section is perpendicular to the rectangular base and passes through the top vertex of the figure. A triangle that does not have the same dimensions as one of the faces is formed. The sides of the new triangle are the heights of the triangles on the faces of the pyramid, and that is why their dimensions are different.
Answer:
d
Step-by-step explanation:
Approximate the real zeros of f(x)= x^4 -5x^3 +6x^2 -x -2 to the nearest tenth
Answers
Answer:
The zeros are approximately -0.433 and 3.352
Step-by-step explanation:
The easiest way to find the real zeros of a polynomial is to plot it and check where y = f(x) = 0. In the picture attached, the plot of f(x)= x^4 -5x^3 +6x^2 -x -2 is shown. Only two real zeros were found.
Answer:
it’s b
Step-by-step explanation:
you’re welcome
The following equation f(x) = x³ + 0.5x² + 4.5 has only 1 real root. It lies between the interval [-1,0].
a. yes
b. no
c. cannot determine the answer
Please select the best answer from the choices provided
Answers
Answer:
I believe that a=the answer is C if It's not then probably A
Step-by-step explanation:
Answer:
the answer is
b.no
Step-by-step explanation:
Completed the table of values using the function y=4x-3. Graph the function on the coordinate plane.
Answers
Answer:
Step-by-step explanation:
substitue values in the table into the equation.
x = 2, then y = 4(2)-3 =>
y= 5
y = -3, then -3 = 4x-3 =>
x = 0
x = -1, then y = 4(-1) - 3 =>
y = -7
x = 3, then y = 4(3) -3 =>
y = 9
y = 1, then 1 = 4x - 3 =>
x = 4
now plot all of these points and create a line from them