Answers
Answer:
-1
Step-by-step explanation:
The mean is the sum of all values divided by the amount of values.
We take the sum of all the numbers:
-3 + -8 + 12 + -15 + 9
-11 + 12 + -15 + 9
1 + -15 + 9
10 + -15
-5
We then divide the sum by how many number we have (we are given 5 numbers):
-5/5 = -1
Therefore, our mean is equal to -1.
Answer:
-1
Step-by-step explanation:
-3 + -8 + 12 + -15 + 9 = -5 Now divide it by the amount of numbers given. -5 / 5 = -1
Related Questions
Express the fraction 11/30 in decmail form
Answers
Answer:
.36666667
Step-by-step explanation:
hope this helped
A teacher divides her class into groups and assigns each group the task of measuring the mass of the same object three times. The teacher already knows that the mass of the object is 25 g. Based on the results each group records, which group makes the most precise measurements of the object? A. Group D: 20.0 g, 25.0 g, 30.0 g B. Group A: 28.5 g, 28.4 g, 28.5 g C. Group C: 32.1 g, 35.0 g, 25.0 g O D. Group B: 25.5 g, 25.0 g, 24.8 g SUBMIT
Answers
Answer:
I think it would be group B due to the fact that they are the closest to 25 g
Step-by-step explanation:
Answer:
B Group A 28.5 g, 28.4 g, 28.5 g
Step-by-step explanation:
In the figure, PQ is parallel to RS. The length of RP is 5 cm; the length of PT is 30 cm; the length of QT is 60 cm. what is the length of SQ?
A. 10 cm
B. 2 cm
C. 6 cm
D. 20 cm
thank you!
Answers
Answer:
10 cm
Step-by-step explanation:
because RT = 35 and RS = 75 so ST = 70
The length of SQ is 10 cm.
Option A is the correct answer.
We have,
Two similar triangles.
ΔTPQ and ΔTRS
So,
TR/TP = TS/TQ
TR = (TP +PR)
TS = (TQ + QS)
Substituting.
TR/TP = TS/TQ
(TP + PR)/TP = (TQ + QS)/TQ
(30 + 5) / 30 = (60 + QS) / 60
35/30 = (60 + QS) / 60
7/6 = (60 + QS) / 60
7 = (60 + QS) / 10
70 = 60 + QS
QS = 70 - 60
QS = 10
Thus,
The length of SQ is 10.
Learn more about triangles here:
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Simplify by combining like terms. 3x3 + 9z + 2x3 + 5z + 6x2
Answers
Answer:
5x^3 + 6x^2 + 14z
Step-by-step explanation:
When combining like terms with exponents, you just add them together as long as they have the same exponent. 3x^3 + 2x^3 = 5x^3
9z+5z=14z
6x^2 has no like terms.
A parent pushes a single child on a swing. Suppose two children now sit on the same swing, and the parent pushes with the same force.
According to Newton's Second Law of Motion, what is the result?
A. mass decreases, acceleration increases
B. mass decreases, acceleration decreases
C. mass increases, acceleration increases
D. mass increases, acceleration decreases
Answers
the answer will be D.
Answer:
D
Step-by-step explanation:
According to Newton's second law of motion, mass is inversely proportional to acceleration. As mass increases, acceleration decreases and the opposite.
Solve for x.
7 =
X =
Answers
Answer:
1
Step-by-step explanation:
Triangle FGH is graphed on the coordinate plane below.
On a coordinate plane, triangle F G H has points (negative 6, negative 8), (negative 2, negative 3), (negative 4, negative 2).
The figure is rotated 180° using the origin as the center of rotation. How do the coordinates of the vertices of the preimage compare to the coordinates of the vertices of the image?
(x, y) right-arrow (y, x)
(x, y) right-arrow (negative y, negative x)
(x, y) right-arrow (negative x, negative y)
(x, y) right-arrow (x, negative y)
Answers
Answer:
(x, y) right-arrow (negative x, negative y) ⇒ (x, y) → (-x, -y)
Step-by-step explanation:
Let us revise the rotation about the origin
If point (x, y) rotated about the origin by angle 90° counterclockwise (or 270° clockwise), then its image is (-y, x) . The rule is (x, y) → (-y, x)If point (x, y) rotated about the origin by angle 180° counterclockwise ( or 180° clockwise), then its image is (-x, -y) . The rule is (x, y) → (-x, -y)If point (x, y) rotated about the origin by angle 270° counterclockwise (90° clockwise), then its image is (y, -x) . The rule is (x, y) → (y, -x)Let us solve the question
∵ The vertices of triangle FGH are (-6, -8), (-2, -3), (-4, -2)
∵ The figure is rotated 180° using the origin as the center of rotation
→ By using the 2nd rule above
∴ The vertices of its image are (6, 8), (2, 3), (4, 2)
∴ The rule is (x, y) → (-x, -y)
The coordinates of the vertices of the preimage compare to the coordinates of the vertices of the image do (x, y) right-arrow (negative x, negative y) ⇒ (x, y) → (-x, -y)
Answer:
B. they over explaining
Step-by-step explanation:
5 less than a number is equivalent to 1 more than three times the number. the number is
Answers
Answer:
x = -1
Step-by-step explanation:
5 less than a number is equivalent to 1 more than three times the number
number = x
x - 5 = 3x + 1
now im going to get the numbers and variable on different sides
x - 5 + 5 = x
3x + 1 - 3x = 1
x + 3x = 4x
1 - 5 = -4
4x = -4
lastly im going to divide each side by 4
4x / 4 = x
-4 / 4 = -1
x = -1
What is 24.9% to a fraction in simplest form?
Answers
Answer:
The answer is 249/1000
Step-by-step explanation:
if the area of the rectangle is given by the polynomial 2x-7-15 what is the dimension of the rectangle in terms of x
Answers
Answer:
2-7x
Step-by-step explanation:
hope i helped gl <3I Need Help With This Question 4x+10= -26
Answers
Answer:
x = -9
Step-by-step explanation:
Answer:
thanks
Step-by-step explanation:
kjhghjklkjhgh
6(p+6)- (p-6) I need help anyone pls
Answers
Answer:
5p + 42
Step-by-step explanation:
Step 1: Write expression
6(p + 6) - (p - 6)
Step 2: Distribute
6p + 36 - p + 6
Step 3: Combine like terms
5p + 42
Explanation. 6(p+6) - (p-6)
We must expand.
6 times p is 6p+ 6 times 6 which is 36.
You now have:
6p+ 36 - p- 6
Combine like terms: 6p- p + 36- 6 Your final answer is:
5p+ 30
Hope this helped let me know if it is correct so others can use it.
Good luck :)
Use the graph of the lines to determine if the two lines
are parallel.
units and right
Line MN was translated down
units to create line M'N'.
The slope of MN
The slope of M'N'
Answers
Answer:
(in order): 4, 8, -2, -2
Step-by-step explanation:
The slope of MN = -1.
The slope of M.N. = -1.
What is a slope?The slope or gradient of a line in mathematics is a numerical representation of the steepness and direction of the line.
To find the slope;
m = (y₂- y₁) / (x₂ - x₁)
Given information:
The two lines MN and M'N' are parallel.
Transformation rule:
Line MN was translated down to 4 units and right to 6 units to create line M'N'.
And line MN passes through two points (-2, 0) and (-6, 8).
Therefore, the slope of line MN,
= (8- 0)/(-6-2)
= -1
Since lines MN and M'N' are parallel, they have the same slope.
Therefore, the slope of M'N' is also -1.
To learn more about the slope;
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Is Mabel correct?
A. Mabel is correct.
B. No, she made a mistake in step 2
C. No, she made a mistake in step 3
D. No, she made a mistake in step 4
Answers
(
4
x
−
3
)
(
(
x
−
2
)
2
)
=
4
x
3
−
19
x
2
+
4
x
−
12
4
x
3
−
19
x
2
+
28
x
−
12
=
4
x
3
−
19
x
2
+
4
x
−
12
Step 1: Subtract 4x^3 from both sides.
4
x
3
−
19
x
2
+
28
x
−
12
−
4
x
3
=
4
x
3
−
19
x
2
+
4
x
−
12
−
4
x
3
−
19
x
2
+
28
x
−
12
=
−
19
x
2
+
4
x
12
Step 2: Add 19x^2 to both sides.
−
19
x
2
+
28
x
−
12
+
19
x
2
=
−
19
x
2
+
4
x
−
12
+
19
x
2
28
x
−
12
=
4
x
−
12
Step 3: Subtract 4x from both sides.
28
x
−
12
−
4
x
=
4
x
−
12
−
4
x
24
x
−
12
=
−
12
Step 4: Add 12 to both sides.
24
x
−
12
+
12
=
−
12
+
12
24
x
=
0
Step 5: Divide both sides by 24.
24
x
24
=
0
24
x
=
0
Answer:
x
=
0
Answer:
D. No, she made a mistake in step 4
Step-by-step explanation:
Describe the transformation for the equaton below:
f(x) = 12 – 4 + 3
Answers
Answer:
f(x)=11
Step-by-step explanation:
f(x)=12-4+3
f(x)=8+3
f(x)=11
GIVING ALOT OF POINTS IF YOU GET IT CORRCET:)
Answers
Answer:
y=1/2x+4
Step-by-step explanation:
Because I took the quiz and got it right ;)
Answer:
y=1/2x+4 i took the quiz too
tep-by-step explanation:
Karen cut away 49 centimeters of rope. Before that, she had 807.49 centimeters of rope. How much rope does Karen have left?
Answers
Answer:
758.49 cm
Step-by-step explanation:
1. Subtract
8 0 7 . 4 9
4 9 . 0 0
7 5 8 . 4 9
how can i find all parts of this question?
Answers
The root (zeros)
x = 0,3,1
End behavior
Falls to the left and rises to the right
Graph
Ann, Ben, and Cindy were eating strawberries. The ratio of the numbers of berries they ate is 5:5:7. If Cindy ate 30 strawberries less than Ann and Ben together, what is the total number of strawberries the three of them ate?
Answer:
Answers
Answer:
170
Step-by-step explanation:
Ann, Ben, and Cindy were eating strawberries.
The ratio of the numbers of berries they ate is 5:5:7.
If Cindy ate 30 strawberries less than Ann and Ben together,
find:
what is the total number of strawberries the three of them ate?
solution:
add the ratios 5 + 5 + 7 = 17
since Cindy ate 30, less than Ann and Ben together so, the equation is
7x = 5x + 5x - 30
7x - 10x = -30
x = 30/3
x = 10
ann 5 x 10 = 50
ben 5 x 10 = 50
cindy 7 x 10 = 70
total = 170
Sonya works on a cruise ship and sleeps in a cabin that is 6 feet below sea level. The main deck is 35 feet above Sonya's cabin. How far above sea level is the main deck? add unit of measure!*
Answers
Answer: 29 ft above sea level
Step-by-step explanation:
if she is 6 feet under that could be considered -6, the main deck is above sea level so +35, so it would be 35-6=29 ft
30 POINTS AND WILL MARK BRAINLY Graph the line that passes through the points (-3,-8) and (2,-3) and determine the equation of the line
Answers
Answer:
y = x - 5 :)
Step-by-step explanation:
use point-slope form to create an equation for this line.
find the slope first by subtracting the y-values from each other, and the x-values from each other.
-3-(-8) = 5 <- y-value
2-(-3) = 5 <- x-value
5/5 = 1 <- slope
plug the slope and one of the points into the point-slope equation.
y - (-3) = 1(x - 2)
y + 3 = x - 2
subtract 3 from both sides.
y = x - 5
graph this by placing a point on -5 on the y-axis, and going up by 1 and right by 1 for the slope of 1.
hope this helped! xoxxo
Step-by-step explanation:
Hey there!
The line passes through points; (-3,-8) and (2,-3).
Now; use formula for double point.
[tex](y - y1) = \frac{y2 - y2}{x2 - x1} (x - x1)[/tex]
Put all values.
[tex](y + 8) = \frac{ - 3 + 8}{2 + 3} (x + 3)[/tex]
Simplify it.
[tex](y + 8) = \frac{5}{5} (x + 3)[/tex]
[tex]y = x + 3 - 8[/tex]
[tex]y = x - 5[/tex]
Therefore, the equation is y= x-5.
Hope it helps...
if you ride your bike around the block, returning to the exact point where you started, your displacement is _____m?
help please <3
Answers
Answer:
tbh idek
Step-by-step explanation:
sorryyyyyyyyyy
60 people attend a game night. Everyone chooses to play chess, a two-player game, or cribbage, a four-player game. All 60 people are playing either chess or cribbage.
There are 3 more games of cribbage being played than games of chess being played. How many of each game are being played
Answers
Answer: 8 chess matches and 11 cribbage matches.
Step-by-step explanation:
60 people, 4 people play a match of cribbage, so if theres 3 more matched than chess we can subtract that from the total 60 to get the answer. 3x4=12 60-12=48, 2 people per chess game and 4 people per cribbage game add them 6, 48 divided by 6 since its an even amount now, 48/6=8 add 8 matched to the remaining 3 for the cribbage.
8 chess games are being played while 11 cribbage games are being played.
Let x represent the number of chess games and y represent the number of cribbage games.
Since there are 60 people, chess is a two-player game and cribbage is a four-player game, hence:
2x + 4y = 60 (1)
There are 3 more games of cribbage than games of chess, hence:
y = x + 3
-x + y = 3 (2)
Solving equations 1 and 2 simultaneously gives:
x = 8, y = 11
Therefore 8 chess games are being played while 11 cribbage games are being played.
Find out more at: https://brainly.com/question/21105092
The Gonzalez family went to the carnival. Parking costs $12.00. The price for each ride cost $4 each. Their total cost was $52.
write equation and then solve
Answers
Answer:
12+4x=52
x=10
Step-by-step explanation:
the amount of money for each ride times x amount of rides is the 4x part. then -12 from the left and from 52. then divide 40÷4 equalling 10
Choose the correct equation to solve the problem: Five friends equally split a restaurant bill that comes to $32.50. How much does each person pay?
x/5 = 32.50
5x = 32.50
x + 5 = 32.50
x - 5 = 32.50
Answers
what is 4/5 divided by 1/2
Answers
Answer:
Decimal form: 1.6
Fraction Form: 1 6/10
HELP IMMEDIATELY PLEASE, WILL GIVE BRAINLIEST!!!
Answers
Answer:
The slope is -1/3 I think.
Answer:
slope = 1/3
Step-by-step explanation:
We can look at the points where the graph exactly intersects a point. Those points are: (10, 50), (40, 60), and (70, 70). The slope is the difference of y divided by the difference of x. You can subtract any two points. Your final answer would be (70-60)/(70-40) = 10/30 = 1/3
Can someone pleasee help I’ll mark brainlist!!!
Answers
Answer:4/C
Step-by-step explanation:
Answer:
2.4
It is the 1st one
Step-by-step explanation:
There are 60 min in 1 hour so divide 60/20min = 3
Then multiply 4/5*3 = 2.4
HOpe this helps
Solve by using the elimination method.
Sally spent $14.85 to buy 13 flowers. She bought lilies, which cost $1.25 each, and tulips, which cost $0.90 each. How many of each flower did Sally buy?
CAN SOMEONE HELP ME WITH THIS ONE PLEASE!!!!!!!
Answers
a = lilies
13 - a = tulips
We have: 1.25a + 0.90(13 - a) = 14.85
=> 1.25a + 11.7 -0.90a = 14.85
=> 0.35a = 14.85 - 11.7 = 3.15
=> a = 3.15 ÷ 0.35 = 9
=> She bought 9 lilies and 4 tulips
Written as a simplified polynomial in standard form, what is the result when
(3x – 2)2 is subtracted from 4x?
Answers
Answer:
Yes, will be
[tex](3x - 2)2 = 6x - 2 = 4x[/tex]
Because the 4x it doesn't t affect the 6x and the 6x is
[tex]6 \times x[/tex]
So the result will be 4x
Answer:
-9x^2 + 16x - 4
Step-by-step explanation: