Answers
Answer:
step 4
Step-by-step explanation:
because y is equation 2 is -y so the sign should have changed for -2x it should have been +2x since - and - equals to +
Related Questions
Solve for the missing variables. (Geometry)
Answers
Step-by-step explanation:
we are using the right triangle altitude theorem. it means that in a right-angled triangle the geometric mean of the two segments of the Hypotenuse (the baseline opposite of the 90° angle) equals the altitude.
in other words
h² = p×q
h = height
p, q are the 2 segments of the Hypotenuse.
so, in our case we have
100 = x(x + 21) = x² + 21x
that gives us the following quadratic equation
x² + 21x - 100 = 0
the general solution to a quadratic equating is
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
a = 1
b = 21
c = -100
so,
x = (-21 ± sqrt(21² - 4×1×-100))/(2×1) =
= (-21 ± sqrt(441 + 400))/2 = (-21 ± sqrt(841))/2 =
= (-21 ± 29)/2
x1 = (-21 + 29)/2 = 8/2 = 4
x2 = (-21 - 29)/2 = -50/2 = -25
x2 would give us negative lengths for the triangle, which does not make sense.
so, x = 4 is our solution.
that makes the segments of the Hypotenuse 4 and (4+21) = 25 units long (the whole baseline is then 4+25 = 29).
PLS HELP ME
What is the mean absolute deviation of the data 10, 17, 20, 12, and 16? Round to the nearest whole number
Answers
Answer:
3.5
Step-by-step explanation:
where n is the number of observed values, x-bar is the mean of the observed values and xi are the individual values.
Answer:
The answer is 4
[tex]s = \sqrt{\frac{\Sigma^n_i_=_1(x_i-x)^2}{n-1} }[/tex]
Turn the equation into a simpler form
[tex]s = \sqrt{\frac{SS}{n-1} }[/tex]
[tex]s = \sqrt{\frac{64}{5-1} }[/tex]
[tex]s = \sqrt{\frac{64}{4} }[/tex]
[tex]s = \sqrt{16}[/tex]
That said, we know the square root of 16 is 4, so 4 would be your answer.
[tex]s = 4[/tex]
Consider the two-way table.
Group A Group B
Category 1 80 170
Category 2 90 84
Complete the table below to show the relative frequencies of the data in the first row.
Enter numbers in the boxes as decimals to the hundredth place.
Please give an explanation instead of just stating the answer!
Answers
Answer: Group A: 0.32 Group B: 0.68.
Explanation: I dont really have one, but a while ago i took the test and it was right.
Have a great day/night. :)
Answer:
Group A: 0.32 Group B: 0.68.
Step-by-step explanation:
What is the surface area of a square pyramid that has a base of 12 cm. and the sides of the pyramid have a slant height of 9 cm. to the nearest whole number?
Answers
Answer:
108
Step-by-step explanation:
just multiply the base and the heigth so 12x9=108
108
just Multiply the base and the height so 12x9=108
What is the surface area of this triangular prism?
Answers
Answer:
2640in
Step-by-step explanation:
11x4=44
44x2=88
5x3=15
15x2=30
88x30=2640
Answer:
23
Step-by-step explanation:
first you add 5 and 3 then add 11 and you will have 19 the add 4 then you get 23
Determine the unit of measurement that best represents each scenario.
1.
2.
3.
Answers
Answer:
pounds, ounces, tons
Step-by-step explanation:
Answer:
Step-by-step explanation:
pounds, ounces, tons
1. The average height of a group of students is 157 cm. After Tamiko joins the group, the new average height is 152 cm. Tamiko is 137 cm tall. How many students are there in the group in the end?
Answers
Answer:
152cm
157cm
+ 137cm
Step-by-step explanation:
Prince started with $0 in his savings account and is saving $15 per week. Chastity has $40 in her savings account and is saving $5 per week. Write an equation that can be used to determine the number of weeks, w, that Jeremiah and Tatiana will have the same amount of money in their savings account.
Answers
Let $z$ be a complex number such that $z^5 = 1$ and $z \neq 1.$ Compute
\[z + \frac{1}{z} + z^2 + \frac{1}{z^2}.\]
Answers
Answer:
The answer is 4
Step-by-step explanation: i did it
(08.06 MC)
A teacher wants to find out the average number of weekly reading hours of her students. She noted the number of reading hours of 5 of her students, as shown below:
8, 6, 5, 7, 4
Which measure of central tendency is most appropriate for this situation and what is its value? (1 point)
Only the median; 6
Only the mean; 5
Either the mean or median; both are 6
Either the mean or median; both are 5
Answers
Answer:
only the median 6
Step-by-step explanation:
it is a better measure way to use to see average
How many lines of symmetry does this figure have?
Answers
Answer:
i think 2 not really sure
Answer:
4 lines
Step-by-step explanation:
you have 1 line vertically, another horizonatlly and two on a line that equal t y=x and y= -x
3. Write in normal form (as a number).
a. 7× 107 + 2 × 105 +9 × 100
b. 3 × 108 +4 × 106 + 5 × 105 + 1 × 10²
Answers
Answer:
1859
1373
Step-by-step explanation:
Answer:
A. 1859
B. 1373
Step-by-step explanation:
Add the numbers together and find the matrix.
Formula - A X 10^2
Write the final coordinates of the image of D, E, A after the following transformations
Translate the figure using the rule (x + 6, y + 1) and then reflect over the x- axis.
(Enter the ordered pairs in parenthesis without space bar, like (-3,9) )
WILL GIVE BRAINLIEST
Answers
Step-by-step explanation:
well, the translation (x+6, y+1) creates the following points :
D goes from (-4,-4) to (2,-3)
E goes from (-4,-2) to (2,-1)
A good from (-1,-4) to (5,-3)
the reflection over the x-axis leaves then the x values unchanged, and negative y values turn positive (or vice versa, if we had a case here).
so,
D' = (2,3)
E' = (2,1)
A' = (5,3)
The length of a shoe is 25 centimeters. How long is the shoe in meters?
(1 meter = 100 centimeters)
-2500 meters
-2.5 meters
-0.25 meters
-250 meters
Answers
Answer:
it is .25 meters
Step-by-step explanation:
It is .25 meters because 25 is a quarter of 100.
Select the correct comparison PLEASE HELP ASAP!
Answers
Answer:
c
Step-by-step explanation:
Explain how to write an inequality to model the problem.
The winning baseball team scored more than 5 runs.
I will Mark Brainliest!!!
Answers
Answer: se o time marcou mais de cinco corridas
Step-by-step explanation: acho que é o time marcou mais de cinco pontos!!
a
cho que é isso num tendi muito bem mas espero ter ajudado?ajudado!!
^-^
Answer:
Let's use r for the number of runs
r>5
Step-by-step explanation:
R is larger than five
PLS HELP ASAP ITS DUE TODAY!!
Answers
Answer: C
Step-by-step explanation:
Help me out for brainliest and 40 points :) With explanations please.
Answers
For this, you will just simplify to figure it out. It should be pretty easy.
14/5 is 2 4/5 (2 whole and 4/5 extra)
17/8 is 2 1/4 (2 whole and 1/4 extra)
11/3 is 3 2/3 (3 whole 2/3 extra)
15/6 is 2 1/2 (2 whole 1/2 extra)
Hope it helps!
Answer:
a 2 4/5 b 2 1/8 c 3 2/3 d 2 3/6
Step-by-step explanation 14 goes into 5 two times 5x2=10 , 14-10=4 . 17 goes into 8 two times 8x2=16, 17-16=1. 11 goes into 3 three times 3x3=9 , 11-9=2. 15 goes into 6 two times 6x2=12 , 15-12=3
34. A 6-member committee is to be chosen by drawing Nmes of individuals from a hat. If the hat contains the Nmes of 8 men and 14 women, find the probability that the committee will consist of 3 men and 3 women.
Answers
6/22
Or 3/11
Hope this helped ! :)
Which expression is equivalent to 2.5((2x-5)-(5x+2))?
Answers
Answer: b or c
Step-by-step explanation: they both appear to be the same answer so i don’t know which one it would be
Please help me with this I would give you 50 points.
Answers
Answers for #5
- s/10
- 8*b
- h+7
- 3*r-8
Question 6
62 miles/hour x 4 hours = 248 miles traveled
2. 8•b
3. 7 > h
4. 8 < 3 • r
5. 248 miles
Find the area of the parallelogram.
Answers
13. An elephant takes 8 steps in 10 seconds. At this rate, how many steps does it take in 4 minutes?
Answers
Answer:
192
Step-by-step explanation:
8 steps per 10 seconds
How many steps per 4 minutes?
First, find out how many 10-second intervals there are in 4 minutes.
4 minutes = 240 seconds
240 divided by 10 is 24
24 ten second periods times 8 steps per 10 seconds
192
192 steps in 4 minutes
i need help
This Bar Chart shows how many days it took for 12 corn seedlings to emerge.
What is the range of this set of data?
Answers
The Range of the given set is 5.
We have been given Bar Chart that shows how many days it took for 12 corn seedlings to emerge.
We know that the Range of data set is the difference between the smallest and largest values
It is a measure of the spread or variability of the data set.
The highest point is 10
The lowest point is 5
The Range = 10 - 5
Range = 5
Therefore, the correct answer is 5.
Learn more about the range of the function:
brainly.com/question/2264373
#SPJ2
guys i need help please
Answers
Answer:
15
Step-by-step explanation:
6 times 3 equals 18, then you subtract 3 from that and thats the answer
So now substituting we get 6(3)-3
=> 18-3 = 15
15 is your answer
Have a good day
Mark as brainliest..
A cone-shaped tent has a diameter of 12 ft and a height of 6 ft. What is the approximate volume of the tent? Use 3.14 for π.
You may use your formula sheet and a calculator.
Question 7 options:
904.32 ft³
37.68 ft³
226.08 ft³
75.36 ft³
Answers
HELP ASAP FOR HOMEWORK
Answers
Answer:
Total cost of each class = 26s + a
Step-by-step explanation:
52/2 = 26
26*s + 1*a
Pls help me no links beyoch
Answers
=1/2*8*10
=1/2*80
=40sq units
Answer:
40
Step-by-step explanation:
Area of a triangle
The area of a triangle can be calculated using the formula
A = bh/2 where b = base length and h = height
Finding the area by plugging in the values of the height and base length
Looking at the triangle we can tell that the base length is 8 and the height is 10. ( so b = 8 and h = 10 )
So we have A = bh/2
==> plug in b = 8 and h = 10
A = (8)(10)/2
==> multiply 8 and 10
A = 80/2
==> divide 80 by 2
A = 40
Learn more about areas of triangles here! : https://brainly.com/question/15442893
Pls help me i need a good answe
Answers
96/2
48 is the answer
=1/2*12*8
=1/2*96
=48units sq
Consider the figure.
Find the area of the composite figure shown to the nearest half unit.
Answers
Answer:
Area = 13
Step-by-step explanation:
see image. There's a brick of 8 whole squares on the bottom. Then a layer of 3 whole squares on top of that. There's a 1/2 a square besides the 3. Then on top, there is half of a layer of 3 squares. Half of 3 is 1 1/2.
8 + 3 + 1/2 + 1 1/2
= 8 + 3 + 2
= 13