Answer:
[tex]400\pi m^2[/tex]
Step-by-step explanation:
If the diameter is 40, the radius is 20.
The area is 400π
Please help! Find x, if x^2=2018·2020+1 and x<0.
Answer:
-2019
Step-by-step explanation:
Well you can calculate it.
2018 * 2020 + 1 = 4076361
Square root is 2019.
Since x is negative, the answer is -2019
An equation is a mathematical assertion that is made up of expressions connected by an equal signal. as an instance, 3x – five = sixteen is an equation. solving this equation, we get the fee of the variable x as x = 7.
What are equations and variables?A variable is used to symbolize something unknown. for instance x, y, z. An expression no longer has an identical signal. as an instance 4 + 10. An equation is made up of 2 expressions and has an identical signal.
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Which graph has a slope of ? A coordinate plane with a straight line. The line starts at (negative 5, negative 4) and passes through points at (0, 1) and (4, 5). A coordinate plane with straight line. The line starts at (negative 5, negative 2) and passes through points at (negative 1, 0) and (4, 5). A coordinate plane with straight line. The line starts at (negative 5, negative 1) and passes through points at (negative 2, 0) and (3, 2). A coordinate plane with straight line. The line starts at (negative 4, negative 5) and passes through points at (0, 0) and (4, 5).
Answer:
slope of the first line: 1
slope of the second line: 0.778
slope of the third line: 0.375
slope of the fourth line: 1.25
Step-by-step explanation:
Given two points (x1, y1) and (x2, y2), the slope of a line is computed as follows:
slope = (y2 - y1)/(x2 - x1)
Therefore,
slope of the first line: [5 - (-4)]/[4 - (-5)] = 1
slope of the second line: [5 - (-2)]/[4 - (-5)] = 0.778
slope of the third line: [2 - (-1)]/[3 - (-5)] = 0.375
slope of the fourth line: [5 - (-5)]/[4 - (-4)] = 1.25
Answer:
this the question and answer i have and i-d-k what the other person is solving l.o.l
Step-by-step explanation:
A bicycle tire is 28 inches in diameter. Approximately how far does the bicycle move forward
each time the wheel goes around? (Use as an approximation for 7r.)?
Answer: 88 inches
Step-by-step explanation:
So the radius of the tire is computed by dividing it in half. We know that in one round of the wheel, the wheel moves to a distance equal to the circumference of the wheel. So each time the wheel goes around, the bicycle moves about 88 inches 88 i n c h e s forward.
Answer:
The answer would be=
88 Inches!
Step-by-step explanation:
I hope you do well!
(-9n^4+8)-(9n^4+2n^3+5n^2)=
Answer:
[tex]-18n^4-2n^3-5n^2+8[/tex]
Step-by-step explanation:
[tex](-9n^4+8)-(9n^4+2n^3+5n^2)= \\\\-9n^4 - 9n^4 + 8-2n^3-5n^2= \\\\-18n^4-2n^3-5n^2+8[/tex]
Hope this helps!
Steps:
Distribute the Negative Sign:
=-9n⁴+8+-1(9n⁴+2n³+5n²
=-9n⁴+8+−1(9n⁴)+−1(2n³)+−1(5n²)
=−9n⁴+8+−9n⁴+−2n³+−5n²
Combine Like Terms:
=−9n⁴+8+−9n⁴+−2n³+−5n²
=(−9n⁴+−9n⁴)+(−2n³+(−5n²)+(8)
=−18n⁴+−2n³+−5n²+8
Description:
The first steps is to distribute the Negative Sign, after you do it your equation will end like =−9n⁴+8+−9n⁴+−2n³+−5n². Second step is to Combine Like Terms/factors. When you do it your equation will end like=−18n⁴+−2n³+−5n²+8. And that will be the answer to simplify.
Answer: =−18n4−2n3−5n2+8
Please mark brainliest
Hope this helps.
Find the value of x. If necessary, round to the nearest tenth
Answer:
8
Step-by-step explanation:
→ Use trigonometry to find x, we have no hypotenuse so we utilise the TOA formula
TOA = Tan = Opposite ÷ Adjacent
→ The opposite of the triangle is 8√3 and we want to find the adjacent of this triangle so we rearrange
Opposite ÷ Tan
→ Substitute in the values
8√3 ÷ tan(60) = 8
You should draw a line of best fit for a scatter plot if there is no correlation among the data points. True False
Answer:
False
Step-by-step explanation:
N/A
Which of the following questions describes the equation 4n = -24?
What number, when multiplied by -24, equals 4?
What number, when divided by 4, equals -24?
What number, when multiplied by 4, equals -24?
What number, when divided by -24, equals 4?
Which expression is equivalent to the given expression?
(6n-5)(3n-3)?
A.36n11
B.54n30
C. 36n30
D.54n11
Answer:
The answer is C = 36n30
Step-by-step explanation:
Why would someone choose to use a graphing calculator to solve a system of linear equations instead of graphing by hand? Explain your reasoning.Why would someone choose to use a graphing calculator to solve a system of linear equations instead of graphing by hand? Explain your reasoning.
We would prefer to use a graphing calculator because it will give a more exact solution, because it is easier to read, and because it is faster to do.
How to find a solution of a system of linear equations?
There are multiple ways, one of them is by graphing the lines and seeing where the lines intersect.
Now, there are two ways of doing this, graphing by hand and using a graphing calculator.
There are cases where graphing by hand is enough, but is more time-consuming than using a graphing calculator. But there are cases where the intersection happens at a point with irrational values, these cases is really hard to find the solution in a graph by hand (as it can have mistakes and you can't zoom in). While if you used a graphing calculator, you could zoom is as much as you want, so you would get a really good estimation for the solution.
If you want to learn more about systems of equations, you can read:
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plz I need help with my math hw
Answer:
270
Step-by-step explanation:
f(5) = 7+4(5) = 7+20 = 27
g(5) = 1/2(5) = 1/10
f(5)/g(5) = 27 / (1/10) = 27*10 = 270
Answer:
Step-by-step explanation:
(7+20)/(1/10)
27*(10/1)
270
The table of values represents the function g(x) and the graph shows the function f(x).
Which statement about the functions is true?
1. f(x) and g(x) are both absolute value functions.
2. f(−2) is greater than g(−2) .
3. f(x) and g(x) intersect at exactly two points.
4. f(x) is greater than g(x) for all values of x.
Answer:
2 and 3 are true
Step-by-step explanation:
1. Although f(x) is in fact an absolute value function and g(x) never goes below 0, g(x) is not an absolute value function because it does not grow linearly. This is known because, between even x intervals, the y value does not change the same amount.
2. f(-2)=2, and g(-2) is 1, meaning that this statement is in fact correct.
3. For this part, it would probably be a good idea to figure out the equation of both graphs. For g(x), starting at the line of symmetry at x=-3, y is 0, which means that the parabola has not been shifted up or down at all, and that its vertex is at (-3,0). Since it grows at the same rate as the parent function of a parabola, its graph is (x+3)^2. For f(x), you can see that it is an absolute value shifted left 3 and up 1, giving it an equation of |x+3|+1. Now, I've graphed both of them below, and you can see that they intersect at exactly two points, making this statement true.
4. Once again, the graph is helpful here. You can see that although f(x) starts off greater, g(x) with its exponential growth quickly overtakes it. Therefore, this statement is false.
Hope this helps!
Answer:
B and C
Step-by-step explanation:
Find the equation of the linear function
represented by the table below in slope-
intercept form.
X
у
-3
-6
1
1
-2
5
2
9
6
Answer:
I think that the answer is C D E
Circle X is shown. Points W, Y, and Z are on the circle. Lines are drawn through each point on the circle.
Which point is the center of the circle?
point W
point X
point Y
point Z
Answer:
Its point X
Step-by-step explanation:
Just did it on edge 2020
The point that is the center of the circle is point X
How to determine the center?The circle is given as:
Circle X
A circle is named after its center.
This means that the center of circle X is X
Hence, the point that is the center of the circle is point X
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1. How many solutions does the following equation have?
2x2 – 3x + 5 = 2x2.*- 3x + 5
no solution
- 2x -2% -2X
O
o -5% +5=0
2. Use the quadratic formula to solve the equation. If necessary, round to the nearest
hundredth.
x2 + 3 = -4x+3=- 4x
3- 4x
3. Solve the equation using the Zero-Product Property,
4p(5p+ 10) = 0
20p²+40p=0
-20p^2-20p^2
I just want to know if I got it right?
Answer:
1. The equation has no real solutions
2. [tex]x_1 = -1 [/tex] and [tex]x_2 = -3 [/tex]
3. p = 0 and p = -2
Step-by-step explanation:
1. Eq: x² - 3x + 5
discriminant: b² - 4(a)(c) = (-3)² - 4(1)(5) = 9 - 20 = -19 < 0
Therefore, the equation has no real solutions
2. Eq: x² + 3 = -4x
0 = x² + 4x + 3
[tex]x = \frac{-b \pm \sqrt{b^2 - 4(a)(c)}}{2(a)} [/tex]
[tex]x = \frac{-4 \pm \sqrt{4^2 - 4(1)(3)}}{2(1)} [/tex]
[tex]x = \frac{-4 \pm 2}{2} [/tex]
[tex]x_1 = \frac{-4 + 2}{2} [/tex]
[tex]x_1 = -1 [/tex]
[tex]x_2 = \frac{-4 - 2}{2} [/tex]
[tex]x_2 = -3 [/tex]
3. Eq: 4p(5p+ 10) = 0
Zero-Product Property states that:
4p = 0 or 5p + 10 = 0
The first solution is p = 0. The second is:
5p + 10 = 0
5p = -10
p= -10/5 = -2
James has 12.x coconuts. His father asks if he can take 2/3 of all the coconuts. He just received an income of 31 more coconuts. How many coconuts will be eaten?
A. 7.90
B. 69
C. 23
D. 5.98x
Answer:
Option D: 5.98x Coconuts
please help me with 4 more questions ill give brainliest plesase!!
Answer:
(- 1, - 1 )
Step-by-step explanation:
Since the dilatation is centred at the origin, then multiply the coordinates of the original point by the scale factor, that is
(- 3, - 3 ) → ([tex]\frac{1}{3}[/tex] × - 3, [tex]\frac{1}{3}[/tex] × - 3 ) → (- 1, - 1 )
Were you surprised by the shape of your scatter plot? Explain.
Do you think there might be other factors that influence the association between the variables?
If you switched which axis each variable is graphed on, would your scatter plot look different? Describe and interpret the association between the variables.
Answer:
Answers are below
Step-by-step explanation:
Yes I was surprised by the scatter plot because I didn't know there would be the most rain at 77 degrees F on the red line.
If you switched which axis each variable is graphed on, your graph would look different because the graph could be sideways on the left or the right.
The graph has a trend of increasing temperature and amount of rain as you get up to the 7th column. After the 7th column, the trend shows decreasing rain and temperature.
What is the standard form of y – 8 = 2(x + 3)?
Question 14 options:
a)
y = 2x + 14
b)
2x + y = 14
c)
y – 2x = 11
d)
2x – y = –14
Answer:
A
Step-by-step explanation:
So first you would distribute the 2
y - 8 = 2x + 6
Then you add 8 to both sides
y = 2x + 14
So your answer is A
I just need answer. Pls
Answer:
Step-by-step explanation:
directions for constructing the orthocenter of a triangle?
Answer:
6IMRYUr5yt
Step-by-step explanation:
rfuiyrbfbnggrnteetS32
Help mee pweaseeeeeee :)))
Answer: .4
Step-by-step explanation:
.
Anyone know the answer to this?
Answer:
3x-5+19-x+2x
5x-x=14
4x=14
Hope that helps
how do i calculate the first quartile and the third quartile???
!!!please help!!!
Answer: The Median: 78, The First Quartile: 63, and The Third Quartile: 99
Step-by-step explanation: Ok, so let's put the data set from least to greatest....
(63, 63, 76,) (77, 79,) (84, 99, 99)
First Quartile Third Quartile
First, let's find the median, since you made a little mistake...
77 + 79 = 156
156 ÷ 2 = 78
The median is 78!
Now, let's determine the first quartile and the third quartile.
For the the first quartile/third quartile it'll be the middle number, if it's even we'll do the same extra step just like we'll do for the median. In this case it's not even therefore...
First Quartile: 63
Third Quartile: 99
I hope this helps!
I will give brainliest answer
Answer:
The radius of circle is 162 units
Vector performed an experiment at a local farm to determine if the addition of bananas to his biomass cow manure recipes helps produce more or less energy. He collected random samples of manure and bananas from the farm, prepared 15 bottles of each of both mixtures, and placed a balloon on top of each bottle. After two weeks he measured the circumference of each balloon in centimeters; the bigger the balloon grew, the more energy that was produced. The results of the experiment are displayed in the box plots below.
Which description most accurately summarizes the sample results?
Answer:
For his balloon to grow bigger, more manure is needed to enhance more growth energy
The mean of cow manure with mashed bananas is always more than the mean of only cow manure in any country.
Then the correct option is B.
What is Mean?Mean is simply defined as the average of the given set of numbers. The mean is considered as one of the measures of central tendencies in statistics. The mean is said to be an arithmetic mean. It is the ratio of the sum of the observation to the total number of observations.
Vector performed an experiment at a local farm to determine if the addition of bananas to his biomass cow manure recipes helps produce more or less energy.
He collected random samples of manure and bananas from the farm, prepared 15 bottles of each of both mixtures, and placed a balloon on top of each bottle.
After two weeks he measured the circumference of each ballon in centimeters; the bigger the balloon grew, the more energy that was produced.
The mean of cow manure will be
Mean = 10+11 +13 +13 + 14 +15 + 15 + 15 + 18 + 18 + 19 + 20 +22+25+26/15
= 254/15
= 16.93
The mean of cow manure with mashed banana will be
Mean = 22+22+26+29+30+31+36+36+38+39+43+46+46+49+50/15
= 543/15
= 36.2
Thus, The mean of cow manure with mashed bananas is more than the mean of only cow manure.
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find the inverse of A(r)=15+3r
Answer:
A(r)=15-3r
Step-by-step explanation:
switch the sign of 3r to make it -3r
In the diagram shown, m <AOC =124 and OA=10 cm. Which of the following is closest to the length of
arc ABC?
(1) 20.6
(2) 21.6
(3) 40.4
(4) 41.2
Answer:
(2) 21.6
Step-by-step explanation:
The segment OA is the radius of the circle
The arc of the complete circle is equivalent to its perimeter
perimeter = 2*π*radius = 2*π*10 = 62.83 cm
This arc is proportional to 360°. So, for 124°:
360°/124° = 62.83 cm/ x cm
x = 124*62.83/360
x = 21.6 cm
Solve for y: 4y + 4 = -8
Answer: YOUR ANSWER IS -3
Step-by-step explanation:
4y + 4 = -8
-4 -4
___________
4y = -12
Divide -12 by 4
Y = -3
1. Trevor's fitness trainer recommends that Trevor drink 8 fluid ounces
of water 8 times a day. Trevor has a water bottle that holds 1 1/4 pints
of water when filled. Today, he has filled the water bottle three times
and drank all of the water each time. Trevor claims that he drank the
total amount of water recommended by his fitness trainer. Explain
why Trevor's claim is not true. (Remember 8 ounces = 1 cup; 2 cups
1 pint)
=
Answer: Trevor drinks 3 3/4 pints against his coach's 4 pints
Step-by-step explanation:
8 ounces per day x 8 times = 64 ounces = 8 cups = 4 pints
Water bottle holds 1 1/4 pints x 3 = 3 3/4 pints.
The side length of the cube is 9 inches. Find the volume of the cube.
_______________________________
Hey!!
Solution,
Length(l)=9 inches
Volume of cube=?
Now,
Volume of cube= (L)^3
=(9)^3
=729 inches^3
Hope it helps...
Good luck on your assignment
_____________________________
Answer:
[tex]729 {in}^{3} [/tex]
Step-by-step explanation:
[tex]volume = whl \\ [/tex]
[tex]v = x \times x \times x \\ = {x}^{3} \\ = {9}^{3} \\ = 9 \times 9 \times 9 \\ = 81 \times 9 \\ =72 9[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
