Answer:
None
Step-by-step explanation:
Parallel lines never intercept, giving no solution points
Simplify the expression:
(2x2 + 3x - 7) + (5x2 - x +9)
Answer:
[tex]7x^2 + 2x + 2[/tex]
Step-by-step explanation:
Step 1: Combine
[tex]2x^2 + 3x - 7 + 5x^2 - x + 9[/tex]
[tex](2x^2 + 5x^2) + (3x - x) + (-7 + 9)[/tex]
[tex]7x^2 + 2x + 2[/tex]
Answer: [tex]7x^2 + 2x + 2[/tex]
On a coordinate plane, a parabola opens up. It goes through (negative 8, negative 2), has a vertex at (negative 5, negative 6.5), goes through (negative 2, negative 2), and has a y-intercept at (0, 6). Over which interval is the graph of f(x) = one-halfx2 + 5x + 6 increasing? (–6.5, ∞) (–5, ∞) (–∞, –5) (–∞, –6.5)
Answer:
The function is increasing in the interval (-5,∞)
Step-by-step explanation:
we have
[tex]f(x)=\frac{1}{2}x^2+5x+6[/tex]
This is a vertical parabola open upward
The vertex represent a minimum
The vertex is the point (-5,-6.5)
The domain is all real numbers
The range is the interval [-6.5,∞)
so
At the left of the x-coordinate of the vertex the function is decreasing and at the right of the x-coordinate of the vertex the function is increasing
therefore
The function is increasing in the interval (-5,∞) and the function is decreasing in the interval (-∞,-5)
Answer:
(–5, ∞)
Step-by-step explanation:
This is a vertical parabola open upward
The vertex represent a minimum
The vertex is the point (-5,-6.5)
The domain is all real numbers
The range is the interval [-6.5,∞)
so
At the left of the x-coordinate of the vertex the function is decreasing and at the right of the x-coordinate of the vertex the function is increasing
therefore
The function is increasing in the interval (-5,∞) and the function is decreasing in the interval (-∞,-5)
The data in the table shows a sinusoidal relationship between the number of seconds an object has been moving and its velocity v(x), measured in centimeters per second. What is true of the cosine function that models the data in the table?
Drag a value into each box to correctly complete the statements. PLEASE HELP!
Answer:
40
y = 30.85
10.85
Step-by-step explanation:
One complete cycle is between:
x = 4 and x = 44
Period: 44-4 = 40 cm
Range: 41.7 - 20 = 21.7
Amplitude: 21.7/2 = 10.85
Mean line:
y = 20 + 10.85
y = 30.85
The period of the cosine function is 20, its midline equation is y = 32, and its amplitude is [tex]$\boxed{12}$[/tex].
To analyze the given data, we can notice the sinusoidal nature of the relationship between the number of seconds an object has been moving (x) and its velocity (v(x)$. This indicates that a cosine function can model the data.
Now, let's find the period, midline, and amplitude of the cosine function that models this data.
The period of a cosine function is the distance it takes for the function to complete one full cycle. Looking at the data, we can see that the interval between consecutive peaks or troughs (e.g., between 4 and 24, or 24 and 44) is 20 seconds.
Hence, the period of the cosine function is 20.
The midline of a cosine function is the horizontal line that divides the maximum and minimum values of the function. In this case, since the data oscillates around a central value, it suggests that the midline is not at y = 0.
Instead, it's the average of the maximum and minimum values of the data. The maximum value is 44 and the minimum value is 20, so the midline would be the average of these, which is (44 + 20)/2 = 32.
The amplitude of a cosine function is half the difference between the maximum and minimum values.
In this case, the maximum value is 44 and the minimum value is 20, so the amplitude is (44 - 20)/2 = 12.
So, completing the statements:
- The period of the cosine function is 20.
- The equation of the midline of the cosine function is y = 32.
- The amplitude of the cosine function is [tex]$\boxed{12}$[/tex].
Find x. Round the answer to the nearest tenth. A. 1.7 B. 1.9 C. 2.1 D. 2.2
Answer:
B: 1.9
Step-by-step explanation:
The number of fruit flies in an experimental population after t hours is given by
Q(t) = 20e^0.03t, t > 0. Find the initial number of fruit flies in the population.
A Q(72) = 173
B.Q(0) = 20e
C. Q(0) = 72
D. Q(0) = 20
E. None of them
Answer:
20
Step-by-step explanation:
just substitute 0 for time in your equation, you will get 20.
Which expression is the result of factoring the expression below by taking out its greatest common
factor?
4x2 + 16x – 4 =?
Answer:
According to khan academy the answer is 4(x2+4x-1)
Step-by-step explanation:
khan academy
What is the length of the paintbrush in centimeters?
A.0.101 cm
B.10,100 cm
C.1,010 cm
D.10.1 cm
Answer:
D
Step-by-step explanation:
The length of the paintbrush in centimeters is D. 10.1 cm.
What is Unit Conversion?Unit conversion is defined as expressing the same quantity by different measurement units.
For example, a distance of 20 meter can be also expressed as 2000 cm. The distance is same.
Given that,
Length of the paintbrush in millimeters = 101 millimeters
We have to find the length of the same paintbrush in centimeters.
We have the unit conversion,
1 centimeter = 10 millimeters
So,
1 millimeter = 1/10 = 0.1 centimeters
So, we have to multiply the measurement in millimeter with 0.1.
101 millimeters = 101 × 0.1 = 10.1 centimeters
Hence the length is 10.1 centimeters
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What is the length of the paintbrush in centimeters?
A paintbrush is one hundred one millimeters long.
A. 0.101 cm
B. 10,100 cm
C. 1,010 cm
D. 10.1 cm
The data set represents the number of minutes Dan spent on his homework each night.
30, 35, 35, 45, 46, 46, 52, 55, 57
Which box plot correctly represents the data?
30 32 34 36 38 40 42 44 46 48 50 52 54 56 58
30
32 34 36
38 40 42 44 46 48 50 52 54 56 58
30 32 34 36
38 40 42 44 46 48 50 52 54 56 58
30 32 34 36
38 40 42 44 46 48 50 52 54 56 58
Answer:
The answer is A. (or the first one)
Step-by-step explanation:
It's not D because the median is 46. It is not B or C either because the IQR is 35 and the OQR is 53.5 and A is the only one that has that. Hope it helped :)
Answer:
a on ed 2020
Step-by-step explanation:
Complete the sentence using one of the following words:
anaphase, telophase, or cytokinesis.
The phase of the cell cycle in which the cytoplasm splits apart
and the cell separates into two identical daughter cells is called ..?
Answer:
cytokineses
Step-by-step explanation:
The phase of the cell cycle where the cytoplasm splits apart and the cell separates into two identical daughter cells is referred to as cytokinesis.
Explanation:The phase of the cell cycle in which the cytoplasm splits apart and the cell separates into two identical daughter cells is called cytokinesis.
Cytokinesis usually follows the other stages of the cell cycle. To put these stages in context: anaphase is the phase in which the chromosomes separate, followed by telophase, in which the separated chromosomes reach opposite ends of the cell. Cytokinesis then occurs, physically splitting the cell in two and thereby creating two identical daughter cells.
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A soccer ball has a volume of 288π in3. What is the radius of the soccer ball?
Answer:
its 6
Step-by-step explanation:
A soccer ball is in the form of a Sphere.
Volume of a Sphere: V = (4/3)πr3
In this case, V = 288π cm3. So:
1) Substitute the known value into the equation: 288π = (4/3)πr3
2) Notice the π value is on either side of the equation. It cancels: 288 = (4/3)r3
3) Simplifying: r3 = 216
4) Solving for r yeilds : r = 6 cm
The radius (r) of a soccer ball with a volume of 288 cm3 is 6 cm
Answer:
its 6
Step-by-step explanation:
What is the area of the base in the figure below?
O 9 square units
O 97 square units
O 72 square units
O 72square units
Which equation is true for x = –6 and x = 2?
A.2x^2 – 16x + 12 = 0
B.2x^2 + 8x – 24 = 0
C.3x^2 – 4x – 12 = 0
D.3x^2 + 12x + 36 = 0
Answer: [tex]x^{2} +4x - 12 = 0[/tex]
Step-by-step explanation:
To find the quadratic equation when the roots are given , we will use the formula:
[tex]x^{2} -[/tex] sum of roots[tex](x)[/tex] + product of roots = 0
sum of roots = -6 + 2 = -4
product of roots = -6(2) = -12
substituting into the formula, we have
[tex]x^{2} - (-4) +(-12) = 0[/tex]
[tex]x^{2} +4x - 12 = 0[/tex]
Chantelle has signed up for hockey. Her parents set a limit of $400 for costs for the season. It costs $250 to sign up and $5 for each ice-time. What is the maximum number of ice-times that Chantelle can go?
Answer:
30 times
Step-by-step explanation:
$400 minus $250=$150
$150 divided by $5=30 so she can go 30 times
The table contains the data of two variables, X and Y. Which regression line shows the best fit to the random sample observations of Xi and Yi in the table?
A) A
B) B
C) C
D) D
edit (will give branliest) but it doesnt tell me if its right or not so yep......
6 if x < −5
f(x) = −x + 1 if |x| ≤ 5
−7 if x > 5
Use desmos:
This is the piece wise graph
Write an equation that models this situation. A copier that makes 34 copies per minute runs for 12 minutes. How many copies (x) are made during that time?
Answer:
x = 34t
408
Step-by-step explanation:
x = 34t
x: no. of copies
t: minutes
x = 34(12)
x = 408
Answer:
x
34
= 12
x = total number of copies
total number of copies
copies per minute
= number of minutes copier runs
B ) x / 34 = 12 is correct
Can someone find the area
Lets split this into two parts; a semi circle and triangle. We can solve fro the area of both individually first.
Area of the Semi Circle:
Formula: A = (πr²)/2
The radius is the diameter divided by two (16 / 2 = 8)
A = (π*8²)/2
A = (π64)/2
A = 200.96/2
A = 100.48 meters
The area of the semi circle is 100.48 meters
Area of the Triangle:
Formula: A = bh/2
A = 16*12/2
A = 192/2
A = 96 meters
The area of the triangle is 96 meters.
To find the total area of the shape, we can add.
100.48 + 96 = 196.48 meters.
Best of Luck!
5.006 as a fraction in simplest form
Answer:
5 3/500
Step-by-step explanation:
Answer:
2503/500
Step-by-step explanation:
You have to turn it into a fraction like 5.006/1 then you multiply by 10 until the numerator is a whole number.
1) 5.006/1
2) 50.06/10
3) 500.6/100
4) 5006/1000
5) Simplify: 2503/500
the price of a price of machinery is 27,000 the table shows the value of the machinery during the first three years after it was purchased based on the table which equation can be used to determine v the value in thousands of dollars of the machinery t years after it was purchased
Answer:
B v=27(0.8)
Step-by-step explanation:
if you multipy 27,000 by 0.8 you get 21,600 if you do it again you get 17,280 and so on
Answer:
The answer is B
Step-by-step explanation:
I or the question right , just trust me
Help please!!!!!!!!!!
Answer:
I think it's 96 not sure though
Multiply the equation (-6)(-5).
Answer:
30
Step-by-step explanation:
Whrn two negative numbers multiplied or divided the result will be positive
(-6)×(-5) = +30
sarah can fit 115 books in 2 bookcases at that rate how many bookcases does she need to hold 360 books?
Answer:115books= 2bookcases
360books=xbookcases
115x=2×360
115x=720
x=720/115
x=6.3 ~ 6bookcases
Step-by-step explanation:
Answer:
7 book cases
Step-by-step explanation:
Add 115 to itself until you reach past 360 (there is a remainder). 115 added 3 times is 345. 115 books=2 bookcases. So you multiply: 2×3=6. Since there is not enough room for all 360 books in 6 bookcases, you need 1 more, which makes it 7 bookcases.
A "pick-6" lottery chooses 6 numbers out of the numbers from 1 to 50. How many different combinations of 6 numbers can be picked?
Select the best answer from the cholces provided.
A. 3.04 * 1064
B. 15,890,700
C. 11,441,304,000
D. 2,118,760
What is the largest perfect square that can be divided out of 64?*
Answer:
64 is a perfect square, because the square root of 64 is 8. If you mean divided by 64, it would be 16 because 16x4=64.
Need help with this question.
Answer:
the answer is g
Step-by-step explanation:
I just divided 15 and 6 by 3 and simplified that down to 5 and 2
Answer:
G
Step-by-step explanation:
They need to be equivalent. To show this you can use ratios or fractions. 15/5=3, 6/2=3
awner both and get brainliest
Answer:
For the first one the answer is 2
For the second one the answer is 72
Step-by-step explanation:
Answer:
The first one is 2.
The second one is 72.
Step-by-step explanation:
First you find the slope of the chart. The formula for finding the slope on a chart is y2-y1 divided by x2-x1. Then you find the y-intercept. The formula for finding the y-intercept is y=mx+b!
On a coordinate plane, a line goes through (negative 2, negative 4) and (2, 2). A point is at (negative 3, 1).
What is the equation, in point-slope form, of the line that is parallel to the given line and passes through the point (−3, 1)?
y – 1=Negative three-halves(x + 3)
y – 1=Negative two-thirds(x + 3)
y – 1= Two-thirds(x + 3)
y – 1= Three-halves(x + 3)
Answer:
y – 1= Three-halves(x + 3)
Step-by-step explanation:
line goes through (-2, -4) and (2, 2)
goes through (-3, 1)
slope = (-4 - 2) / (-2 -2) = -6/-4 = 3/2
1 = (3/2)*-3 + b
1 = -9/2 + b
b = 1 + 9/2 = 11/2 = 5.5
y = (3/2)*x + 11/2
(y - 1) = (3/2)(x + 3)
The line goes through (-2, -4) and (2, 2)
goes through (-3, 1)
If slope = (-4 - 2) / (-2 -2) = -6/-4 = 3/
1 = (3/2)*-3 + b
1 = -9/2 + b
b = 1 + 9/2 = 11/2 = 5.5
y = (3/2)*x + 11/2
(y - 1) = (3/2)(x + 3)
So the correct answer is option d. y – 1= Three-halves(x + 3).
What are coordinates planes?A coordinate plane is a graphing and description system for points and lines. A vertical (y) axis and a horizontal (x) axis make up the coordinate plane. There are four quadrants in the coordinate plane. The point where these lines connect is called the origin (0, 0).
What are the 4 coordinate planes?Quadrant I: positive x and positive y.Quadrant II: negative x and positive y.Quadrant III: negative x and negative y.Quadrant IV: positive x and negative y.Learn more about coordinates planes here: https://brainly.com/question/13854649
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Eloise scored a total of 268 points during the basketball season. Of her total points, l points came from left-handed shots. She scored 225 points with right-handed shots.
Write an equation to describe this situation.
How many points did Eloise score with left-handed shots?
Answer:
43
Step-by-step explanation:
268-225=43
Answer:268 = L + 225 and the points of left - handed shots are 43 .
Step-by-step explanation:
On a 2,000 calorie diet, how many calories would come from VEGGIES? *
35% veggies
15% fruit
25% carbs
25% protein
a angle measures 72 degrees more than its supplementary what is the measurement of each angle
Answer:
The angles are 126 and 54