Answer:
7 cubic inches
Step-by-step explanation:
your welcome! :)
Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 2 1 cannot be determined
Answer:
0 solution
Step-by-step explanation:
Given
\(x^2 + 5x+ 7 = 0\)
Required
Find number of solutions;
The number of solutions can be determined via the value of determinants, D;
Such that
\(D = {b^2} - {4ac}\)
By comparing the general form of equation;
\(ax^2 +bc x + c = 0\)
with \(x^2 + 5x+ 7 = 0\)
This gives
\(a = 1\\b = 5\\c = 7\)
So;
\(D = {b^2} - {4ac}\) becomes
\(D = {5^2} - {4*1*7}\)
\(D = {25} - {28}\)
\(D = -3\)
The calculated value of D is less than 0;
This implies that \(x^2 + 5x+ 7 = 0\) has no real solution
Fill in the blanks to complete the equation that describes the diagram.
Answer:
4+ -6 = -2
Hope this helps! Have a nice day!
Step-by-step explanation:
Percentages
Gunpowder contains 75% nitre and 10% sulfur. Find the amount of gunpowder which carries 9 kg nitre. What amount of gunpowder would contain 2.3 kg sulfur?
Answer:
Let the amount of gunpowder that contains 9 kg nitre be x kg. ∴ The amount of gunpowder containing 9 kg nitre is 12 kg.
So, about 200 kg gunpowder
WILL GIVE BRAINLIEST PLEASE HELP ME!
Answer:
The slope is 7/2.
Step-by-step explanation:
Use the slope formula and plug in the numbers.
Answer:
I think it's going down diagonally. It goes 5, 4, 3.7
The table shows the number of goals made by two hockey players.
Player A Player B
2, 3, 1, 3, 2, 2, 1, 3, 6 1, 4, 5, 1, 2, 4, 5, 5, 11
PLS HELP! AND FAST.
Find the best measure of variability for the data and determine which player was more consistent.
Player B is the most consistent, with an IQR of 3.5.
Player B is the most consistent, with a range of 10.
Player A is the most consistent, with an IQR of 1.5.
Player A is the most consistent, with a range of 5.
Answer: Player B is the most consistent, with an IQR of 3.5.
Step-by-step explanation:
For Player A, the IQR is 2 (Q3 - Q1 = 3 - 1 = 2).
For Player B, the IQR is 3.5 (Q3 - Q1 = 5 - 1.5 = 3.5).
Therefore, Player B is more consistent, as their IQR is larger, indicating less variability in their scores.
An astronomer's infrared telescope is able to detect radiation with a wavelength of meters. Write this number in scientific notation.
Answer: 9.57 x 10 meters
Step-by-step explanation:
An astronomer's infrared telescope is able to detect radiation with a wavelength of 9.57 x 10 meters.
\(\frac{k}{-3}\) + 3+-2 a two step equation
Answer:A two-step equation is an algebraic equation you can solve in two steps. Once you've solved it, you've found the value of the variable that makes the equation true. Example 1 We're given an equation and asked to solve for x x: 3 x + 2 = 14 3x + 2 = 14 We need to manipulate the equation to get x x by itself.
Step-by-step explanation: i took the test and got it right
This is the graph of f(x) = x+A/x+B. The grid lines in the graph are one unit apart. What is the value of A/B
The value of A/B is given as follows:
A/B = -2.
What are the asymptotes of a function f(x)?The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator.The horizontal asymptote is the value of f(x) as x goes to infinity, as long as this value is different of infinity.From the graph, the function has a vertical asymptote at x = 1, hence the value of B is given as follows:
B = -1 -> as x + B = 0 -> x = -B = -1.
When x = 0, y = -2, hence the value of A is obtained as follows:
A/-1 = -2
A = 2.
Then the division is given as follows:
A/B = 2/-1 = -2.
More can be learned about the asymptotes of a function at https://brainly.com/question/1851758
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Write the inequality shown by the graph.
Solve the system of equations by substitution.
y=1/4x
x+2y=4
There are 12 squares and 9 circles. What is the simplest ratio of circles to total shapes?
Answer:
0
Step-by-step explanation:
Can someone please help me out? I'd really appreciate it.
Answer:
The scaling factor is 4.
Step-by-step explanation:
To find the scaling factor from A to B, we must know that these are similar triangles. Since this is not stated in the problem, we will assume these are similar triangles.
Similar triangles simply have the same scaling ratio, allowing for any size triangle to be created with the same relative dimensions. With this in mind, let's check to see the multiple of each side by simply taking the sides of the triangle B divided by the sides of triangle A.
40 / 10 = 4
44 / 11 = 4
72 / 18 = 4
Notice how each of the sides from triangle B to triangle A has the same multiple, 4. This tells us that the scale from A to B is 4.
Hence, the scaling factor is 4.
Cheers.
Ricardo’s goal was to run 40 laps. At the end of the week, he ran 125% of his goal. How many laps is that?
Answer: He ran 50 laps.
Step-by-step explanation:
40 x 1.25 = 50
Answer:
50
Step-by-step explanation:
40/1 = 100/1
125% = 100/100 + 25/100
25% of 40 = 10
so you have the 40 laps which equal 100% and you also have 25 percent of the from the 125% and 25 percent of 40 is 10 so the answer is 40 plus 10 wich is 50
Hope this helps
Geraldine borrowed $120 from her mom. For every $10 she borrowed, she owes her mom an additional $1.50. How much does Geraldine have to pay back, in addition to the original $120?
Answer: $18
Step-by-step explanation:
First, divide 120 and 10. That is 12. Now, multiplt 12 and $1.50 together. That is $18.
Answer:
$18 bucks
Step-by-step explanation:
6 x (-7/2)
in its simplest form.
Answer:
-21
Step-by-step explanation:
helpppp meeeeee please
HeLP brainleist whoever gets it right first
Answer:
-6b + 6a
Step-by-step explanation:
- x - = +
Identify the slope and y-intercept of the line on the graph. Then, write the equation of the line in slope intercept form. I need all of the answers (all 9 - 12). It'd help me a lot. Thanks.
Answer:
9: Slope is 2/5 and y-intercept is -3
Equation: y=2/5x-3
10: Slope is 1 and y-intercept is -6
Equation: y=x-6
11: Slope is -1/4 and y-intercept is 5
Equation: y=-1/4x+5
12: Slope is 4/3 and y-intercept is 0
Equation: y= 4/3x + 0
Sorry for not explaining the answers! I was in a bit of a rush, but if you don't understand just let me know by rating my answer because I'd be happy to help! (another day though, I'm full of exams these next 2 weeks hehe)
Tomas is planning out a rail trail using a map with a marked grid. The head of the trail, which has an information kiosk, is located at (3, 0). He moves 1 unit east and 3 units north and places a pin at (4, 3) to represent the location of another information kiosk. He continues placing pins so that each pin is 1 unit east and 3 units north in relation to the previous pin. Which of the following points will have pins? Select all that apply.
A coordinate plane has an x-axis labeled East from 0 to 10 in increments of 1 and a y-axis labeled North from 0 to 10 in increments of 1.
A.
(5, 6)
B.
(6, 8)
C.
(7, 10)
D.
(8, 17)
E.
(9, 18)
F.
(10, 21)
Answer:
Step-by-step explanation:
find the spot they are in first then do the answer
Please help with question please. It’s due tomorrow at 8:30 AM so please help.
Answer: i don't know
Step-by-step explanation: sorry
Find the percent equivalent to 18 over 30.
Answers 39% 56% 60% 66%
PLEASE HELP NOW
Answer:
60%
Step-by-step explanation:
Answer:
60%
Step-by-step explanation:
To find the value of a fraction as a percent we can divide the numerator by the denominator and then multiply that by 100.
\(\frac{18}{30}= \frac{3}{5} = 0.6\)
0.6 x 100= 60
Therefore 18/30= 60%
Correct answers only!
After conducting a survey of all her classmates Midge discovers that the amount of money everyone spends buying books each month has a mean of $30. What does the mean say about the amount of classmates spend on books?
Half of her classmates spent exactly $30 per month buying books.
Half of your classmates spent more than $30 per month buying books.
The majority of her classmates spent $30 per month buying books.
If the amount spent on books per month by all her the classmates is leveled, the amount will be $30.
Answer:
C: The majority of her classmates spent $30 per month buying books.
Step-by-step explanation:
The mean is the average of the numbers -> its C
Answer:
C
Step-by-step explanation:
Pls help me in math, I need this tomorrow, thx :)
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
Two sets of data, set X and set Y are given
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
Therefore, both the data sets has same range and mean.
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
To learn more about S.D and variance,
https://brainly.com/question/15858152
https://brainly.com/question/12402189
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
We know
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
also
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
Solve for X
(Second problem btw)
Honors Refresher Quiz #8 1. If a figure is dilated by a scale factor of 12, the area of the figure will change by a factor of
Answer:144
Step-by-step explanation:
When area is dilated you have to multiply the dialation factor by itself, in this case (12 x 12)
help me this one plssssssssssss
Answer:
The integer that describes the translation from B to B' is (-2,1)
A roll of tape has a circumference of 16.2 centimeters. The circumference decreases 2.8 centimeters after you use some of the tape. What is the diameter of the roll after you use the tape? Round your answer to the nearest hundredth, if necessary.
Answer:
8.534
Step-by-step explanation:
16.2 - 2.8 = 13.4
13.4/3.14 = 4.267
4.267 x 2 = 8.534
Hope this helps.
Identify the equation that correctly shows the given relationship.
The answer the first question is D and the second is C (^◕.◕^)
I need help on a b and function 2
I dont get it
Answer:
For A: The first function has a greater ROC
For B: The first function has a negative slope
Step-by-step explanation:
Explication for A:
We already know that the R.O.C. (slope) is 2 for the first function, so all we need to do is substitute the values in the table into the following formula: y2-y1/x2-x1
after substituting: (-3-(-6))/(0-(-1))
simplify 3/1=3, since the ROC is 3, the second equation has a greater ROC than the first
Explanation for B:
The first function described is f(x)=20-3.5x
This is because the y intercept is the starting point, or how much money she has in the gift card. She spends 3.5 dollars per week, so we add a variable to represent the number of weeks, and its negative since she is spending, not earning. We also know that the slope is negative since y is decreasing as x is increasing, on the table.
The second function described is c(m)=5x+10
This is because the equation represents the total cost of renting a calculator, so both terms are positive.
PLZZZZZZZZZZZZZZZZZ HELPPPPPPPPPPPPPP ASAPPP
Mac waters plants for his neighbors when they are away. He graphed several points on a coordinate grid to represent the watering. The x-axis represents the number of plants he has watered in a given day, and the y-axis represents the number of gallons of water he has used to water them. Which point on his graph represents a different ratio of gallons of water to plants than the other points?
A. (16, 4)
B. (8, 2)
C. (24, 8)
D. (48, 12)
Answer:
Step-by-step explanation: 50 km is 36.1 km more than 13.9.
Hope this helps !
-Carrie
Step-by-step explanation:
The correct option is Option C: the point (24,8) shows different ratios of gallons of water and plants from other points.
What is the ratio?The ratio is the representation of the fraction where this fraction is represented by the : symbol.
Given in the question number of plants that he watered every day is represented on the x-axis in the coordinate grid.
The number of gallons that he waters every day is represented on the y-axis in the coordinate grid.
We have to check the ratio of the y coordinate and the x coordinate is different from other options.
By checking all the options
Option A: (16,4) ratio of gallons of water and plants that are watered is 4/16= 1/4= 1:4
Option B: (8,2) ratio of gallons of water and plants that are watered is 2/8= 1/4= 1:4
Option C: (24,8) ratio of gallons of water and plants that are watered is 8/24= 1/3= 1:3
Option D: (48,12) ratio of gallons of water and plants that are watered is 12/48= 1/4= 1:4
By analyzing all options, Option A, B, D has a ratio 1:4. and Option C has a ratio 1:3.
Therefore the correct option is Option C: the point (24,8) shows different ratios of gallons of water and plants from other points.
Learn more about ratio
here: https://brainly.com/question/2784798
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At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation: