Answer:
The left side 2 does not equal to the right side − 2 , which means that the given statement is false. False
Step-by-step explanation:
Hopefully this helps :)
This is a linear equation what is the answer
6a - 2b = 8 + b
Answer:
Slope = 2
a-intercept = 8/6 = 4/3 = 1.33333
b-intercept = 8/-3 = -2.66667
Step-by-step explanation:
Pls, choose me as brainliest!
Answer:
Slope = 2
a-intercept = 8/6 = 4/3 = 1.3...
b-intercept = 8/-3 = -2.6...
Step-by-step explanation:
your welcome
(7xy-8yz+3x)-(4x-8yz)
Answer:
7xy-8yz+3x-4x+8yz
7xy-8yz+8yz+3x-4x
7xy-x
Step-by-step explanation:
Each problem below gives the endpoints of a segment. Find the coordinates of the midpoint of the segment.
a. (-3,11) and (5,6)
b. (-4,-1) and (8,9)
Answer: A
Step-by-step explanation:
What is 1 3/8 equals to
Answer:
1.375 in decimal form
Step-by-step explanation:
Classify the expression: 5x 3x2 − 7x3 2. Linear expression Quadratic expression Cubic expression Quartic expression.
The given expression 5x+3x²-7x³+2 is a cubic expression.
What is a cubic expression?A cubic expression is a three-dimensional algebraic equation of the form ax³ + bx² + cx + d = 0, where the coefficients are a, b, and c, and the constant is d.
In order to classify the given expression as 5x+3x²-7x³+2, we need to rearrange the given expression,
[tex]5x+3x^2-7x^3+2\\\\=-7x^3+3x^2+5x+2[/tex]
Since the highest power that is in the expression is 3, therefore, the given expression is a cubic expression.
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Which of the following scatterplots would have a trend line with a positive slope?
PLEASE HELP I WILL GIVE 20
Answer:
80°
Step-by-step explanation:
since 4x+5x=180, it means that x is 20.
to find SVW, you multiply 4 by 20 which is 80°
3.2. A sporting goods store sells soccer balls for a regular price of $40 each. If a team buys 20 or more
soccer balls, the store offers a discount of 15% off the price of each soccer ball.
How much more will it cost a team to buy 20 soccer balls than to buy 15 soccer balls?
A. $80
B. $100
C. $170
D. $200
Answer:
A. $80
Step-by-step explanation:
First, let's find the cost of 15 soccer balls.
[tex]15*40[/tex] $600Next, cost of 20 soccer balls.
20 x 40 = 80015 x 800 = 1200012000/100 = 120800 - 120 = 680Lastly, the difference between 20 and 15 soccer balls:
680 - 600 = $80Ava's math certificate is 18 centimeters tall and 26 centimeters wide. Ava wants to put the certificate in a fancy frame that costs $1.53 per centimeter. How much will it cost to frame Ava's math certificate?
PLEASE HELP
I put a photo
find the distance between A (2,-3)B(-4,5)
distance between point A and B is = 10
Find the perimeter of the triangle as a simplified polynomial if the sides are 3x + 2, 5x - 5, and 8x + 7
Answer: 16x+4
Step-by-step explanation:
perimeter = side + side + side
So in this case:
Perimeter= 3x+2+5x-5+8x+7= 3x+8x+5x+2+7-5 = 11x+5x+9-5 = 16x+4
6. select all the values for d that make the equation 9 = 18 / d true
Answer: 2
Step-by-step explanation:
The table shows the approximate height of an object x seconds after the object was dropped. the function h(x) = –16x2 100 models the data in the table. a 2-column table with 5 rows. the first column is labeled time (seconds) with entries 0, 0.5, 1, 1.5, 2. the second column is labeled height (feet) with entries 100, 96, 84, 65, 37. for which value of x would this model make the least sense to use? –2.75 0.25 1.75 2.25
The value of x for which this model will make the least sense to use is at x=-2.75 seconds.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
The function that is given to us is h(x) = –16x²+100 where x is the time in seconds.
Now, use the function to know the height of the object, therefore, the height of the object can be written as,
Time, t₁=0
Now, the height can be written as,
[tex]h(x) = -16x^2+100\\\\h(0)=0+100\\\\h_1=100[/tex]
Thus, the height of the object when the time is 0 seconds is 100.
Time, t₂=0.5
Now, the height can be written as,
[tex]h(x) = -16x^2+100\\\\h(0.5)=-4+100\\\\h_2=96[/tex]
Thus, the height of the object when the time is 0.5 seconds is 96.
Time, t₃=1
Now, the height can be written as,
[tex]h(x) = -16x^2+100\\\\h(1)=-16+100\\\\h_1=84[/tex]
Thus, the height of the object when the time is 1 second is 84.
Time, t₄=1.5
Now, the height can be written as,
[tex]h(x) = -16x^2+100\\\\h(1.5)=-36+100\\\\h_4=64[/tex]
Thus, the height of the object when the time is 1.5 seconds is 64.
Time, t₅=2
Now, the height can be written as,
[tex]h(x) = -16x^2+100\\\\h(2)=0+100\\\\h_5=36[/tex]
Thus, the height of the object when the time is 2 seconds is 36.
Now as we can see that the error in the height of the object can be a maximum of 1, therefore, for different values of x, the change in height will be,
Time, t₆= -2.75
Now, the height can be written as,
[tex]h(x) = -16x^2+100\\\\h(-2.75)=-121+100\\\\h_6= -21[/tex]
Thus, the height of the object when the time is -2.75 seconds is -21.
Hence, the value of x for which this model will make the least sense to use is at x=-2.75 seconds.
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Answer:
-2.75
Step-by-step explanation:
A
Maki paid a $14 basic fee plus $25 a day to rent a car. Evaluate the expression 14 + 5 X 25 to find out how much it cost her to rent the car for 5 days
Answer:
25(5)+14=139
$139
Step-by-step explanation:
Can anyone help me pls asap???
Answer:
Lin is taller than 150 centimeters but shorter than 160 centimeters. She could be ... (just put any number that is in between 150 and 160, like 155
Step-by-step explanation:
Answer:
lin is taller than 150
But shorter than 160
She could be 154 centimeters tall
The sign > means greater than.
The sign < means less than.
So, if h > 150, h is greater than 150
And, if h < 160, h is less than 160
h represents Lin
So, lin is taller than 150
But shorter than 160
She could be anywhere in between 150 and 160
So, she could be
151, 152, 153, 154, 155, 156, 157, 158, or 159
Just choose one of those.
16
Select the correct answer from each drop-down menu.
What is the equation of the quadratic function represented by this table?
х
у
-3
3.75
-2
4
- 1
3.75
0
3
1
1.75
y=
(x-
02 +
Answer:
[tex]y=\boxed{-\dfrac{1}{4}}\left(x-\boxed{-2}\:\right)^2+\boxed{4}[/tex]
Step-by-step explanation:
The graph of a quadratic function is symmetrical.
The axis of symmetry is the vertical line through the vertex of the parabola so that the left and right sides of the parabola are symmetrical.
From inspection of the given table, the axis of symmetry is x = -2 as the y-values of x = -3 and x = -1 are both 3.75.
Therefore, the vertex is (-2, 4).
Vertex form of a quadratic equation:
[tex]y=a(x-h)^2+k[/tex]
where:
(h, k) is the vertex.a is some constant.Substitute the vertex and one of the other points into the vertex formula and solve for a:
[tex]\begin{aligned}y&=a(x-h)^2+k\\\implies 3&=a(0-(-2))^2+4\\3&=a(2)^2+4\\3&=4a+4\\-1&=4a\\a&=-\dfrac{1}{4}\end{aligned}[/tex]
Substitute the vertex (-2, 4) and the found value of a into the formula to create an equation for the function:
[tex]y=\boxed{-\dfrac{1}{4}}\left(x-\boxed{-2}\:\right)^2+\boxed{4}[/tex]
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Answer:
-1/4 -2 4
Step-by-step explanation:
What type of graph would you use for a set of categorical data with 25 people surveyed?bar graphline graphpictographstem-and-leaf plot
The type of graph I would use for a set of categorical data with 25 people surveyed is bar graph.
Which types of graphs are good for categorical data?The type of graph or chart that is good for showing categorical data are:
Frequency tables Pie chartsBar chartsNote that bar graph is one of the the most appropriate graphical form of displays for any categorical variables.
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Which rule can be used to describe the x-coordinates in the translation below?. on a coordinate plane, triangle a b c is shifted 6 units up. x 0 x 6 x – 6 x 2
The rule that can be used to describe the x-coordinates in the translation is (x+6).
What is a translation?A translation is a sort of transformation that moves each point in a figure in the same direction by the same amount of distance.
We know that the coordinate is moving up, therefore, the coordinate of x will be increasing by 6 units.
Hence, the rule that can be used to describe the x-coordinates in the translation is (x+6).
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Answer:
x + 6
Step-by-step explanation:
Can you help please I really need it
Answer:
65cm
Step-by-step explanation:
100cm= 1 metre
?=2.5m
=2.5*100=250cm
250-(60+35+90)=65cm
remaining length=65cm
A lawn sprinkler sprays water 4 feet in all direction as it rotates.
Find the area of the lawn the sprinkler covers. Use 3.14 for pi.
Solution:
We know that:
To find the area of a circle, use πr².Since the sprinkler sprays water 4 feet in all directions, the radius will be 4 ft.
This means that:
Area of circle = (3.14)4²Now, let's solve for the area.
=> Area of circle = (3.14)16=> Area of circle = 3.14 x 16=> Area of circle = 50.24 ft² [Option D]if a town with a population of 500 doubles in size ever 9 years, what will the population be 36 years from now?
The population of the town in 36 years would be 8000.
What would be the population of the town in 36 years?The formula that can be used to determine the town's population is:
FV = P (1 + r)^n
Where:
FV = Future value P = Present value R = rate of growth = 100%N = number of years = 36/9 = 4500 x 2^4 = 8000
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Given Set and Set. Calculate the mean and mean absolute deviation for both sets. Then, answer the following questions. How many data points in Set are closer than one mean absolute deviation from the mean of Set ? How many data points in Set are further than two mean absolute deviations from the mean of Set ? Find the difference between the two means. How does this difference relate to the mean absolute deviation of each set? For example, is it the same as the mean absolute deviation, twice as much, half as much, etc?.
The difference between the mean of the two sets is 1, which is half the Mean absolute deviation.
What is mean absolute deviation?The mean absolute deviation is the average distance between the data points and the mean of the data set.
A.) For the data set M, {0, 1, 3, 4, 7}, the mean and the mean absolute deviation can be written as,
[tex]\text{Mean of M}, (\mu_M) = \dfrac{0+1+3+4+7}{5} = 3[/tex]
The mean absolute deviation of the set M,
[tex]MAD = \dfrac{1}{n}\sum_{i=0}^{n}|x_i-m(x)|[/tex]
[tex]MAD = \dfrac{1}{5}\sum_{i=0}^{5}|x_i-m(x)|\\\\MAD_M= \dfrac{10}{5} = 2[/tex]
Now, since the MAD of the set M is 2, therefore, the data points in Set M that are closer than one mean absolute deviation from the mean are 3 because the range of the one mean absolute deviation from the mean,
Mean±MAD
= 3±2
= 3+2, 3-2
= 5, 1
Thus, the numbers coming between 1 to 5 are the data points that are closer than one mean absolute deviation which is 3{1, 3, 4}.
B.) For the data set N, {1, 2, 3, 4, 5, 9}, the mean and the mean absolute deviation can be written as,
[tex]\text{Mean of N}, (\mu_N) = \dfrac{1+2+3+4+5+9}{6} = 4[/tex]
The mean absolute deviation of the set N,
[tex]MAD = \dfrac{1}{n}\sum_{i=0}^{n}|x_i-m(x)|[/tex]
[tex]MAD = \dfrac{1}{6}\sum_{i=0}^{6}|x_i-m(x)|\\\\MAD_m= \dfrac{12}{6} = 2[/tex]
Now, since the MAD of the set N is 2, therefore, the data points in Set N that are further than two mean absolute deviations from the mean of Set are 3 because the range of the one mean absolute deviation from the mean,
Mean±2MAD
= 4±2(2)
= 4+4, 4-0
= 8, 0
Thus, the number not coming between 8 to 0 are the data points that are further than two mean absolute deviations from the mean of Set N which are 1{9}.
C.) The difference between the mean of the two sets is 1, which is half the Mean absolute deviation.
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There are 180 white lockers in a school. There are 3 white lockers for every 5 blue lockers. How many
lockers are in the school?
There are
lockers in the school.
Answer:
There are 480 total lockers in the school.
Help help help help help help help help
Answer:
Roughly 10%
Step-by-step explanation:
We just need to reduce this fraction: 13/119
It is in the lowest terms already, so now we need to make this fraction a percent.
13/119 = 10.12
10.12 ≈ 10%
4. Akeego is making a ribbon shirt. She has 60 cm of ribbon that she will cut into 5 pieces with 2 different lengths: 2 pieces have the same length and the remaining 3 pieces also have equal lengths.
a) Generate some data for this relation showing the possible lengths of the pieces.
b) Graph the data.
c) Write an equation for the relation in general form.
d) i) Can each of 2 pieces be 18 cm long and each of 3 pieces be 3 cm long?
ii) Can each of 2 pieces be 3 cm long and each of 3 pieces be 18 cm long?
Use the graph and the equation to justify your answers.
Answer:
1m
Step-by-step explanation:
because there is some thing to tell I am a kid and my age is 13 and how should I answer your question.
6
Rewrite the expression 2(2x + 1) using the Distributive Property.
Answer:
4x + 2
Step-by-step explanation:
2 times 2x is 4x plus 2 times 1 is 2
(9w^2+7w-2)+(8w^2-8w-7)-(-5w^2+5w+4)
Step-by-step explanation:
Our expression;
[tex](9w^2+7w-2)+(8w^2-8w-7)-(-5w^2+5w+4)[/tex]
Also represented as after using the distributive property;
[tex]9w^2+7w-2+8w^2-8w-7+5w^2-5w-4[/tex]
Simplify;
[tex]9w^2+7w-2+8w^2-8w-7+5w^2-5w-4[/tex]
[tex]22w^2+7w-2-8w-7-5w-4[/tex]
[tex]22w^2-6w-2-7-4[/tex]
[tex]22w^2-6w-13[/tex]
Answer:
22w² - 6w - 13
Step-by-step explanation:
Given expression: (9w² + 7w - 2) + (8w² - 8w - 7) - (-5w² + 5w + 4)
Step-1: Open the parenthesis
⇒ (9w² + 7w - 2) + (8w² - 8w - 7) - (-5w² + 5w + 4)⇒ 9w² + 7w - 2 + 8w² - 8w - 7 + 5w² - 5w - 4Step-2: Combine like terms
⇒ 9w² + 7w - 2 + 8w² - 8w - 7 + 5w² - 5w - 4⇒ w²(9 + 8 + 5) + w(7 - 8 - 5) + (-2 - 7 - 4)Step-3: Simplify the expression
⇒ w²(9 + 8 + 5) + w(7 - 8 - 5) + (-2 - 7 - 4)⇒ w²(22) + w(-6) + (-13)⇒ 22w² - 6w - 13Therefore, the simplified expression is 22w² - 6w - 13.
11. What is the value of x in the figure shown? (15x) 15 °
Answer:
x = 11
Step-by-step explanation:
15x + 15x + 15 + 15 = 360 (sum of all sides equal to 360)
30x + 30 = 360
30x = 360 - 30
30x = 330
30x/30 = 330/30
x = 11
Kaitlyn solved the equation for x using the following calculations. Negative 5. 4 x = 12. 2. Minus 5. 4. X = 6. 8. What error, if any, did she make? She should have added 5. 4 to each side. She should have added the inverse of 5. 4 to each side. She made a computational error when she subtracted 5. 4 from 12. 2. She should have added 12. 2 to each side.
The value of x is 17.6. She should have added 5.4 on both sides to get the correct value of x. Then the correct option is A.
What is the linear system?A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.
Kaitlyn solved the equation for x using the following calculations.
[tex]\rm -5.4 + x =12.2[/tex]
and she did the calculation will be
[tex]\rm -5.4x = 6.8[/tex]
The mistake she did in this equation is the plus sign is removed between the -5.4 and x. And she subtracted 5.4 from 12.2.
The correct solution of the equation is to add both sides 5.4. Then we have
[tex]\begin{aligned} \rm -5.4 + x+5.4 &=12.2+5.4\\\\\rm x &= 17.6\end{aligned}[/tex]
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