Answers
Answer:
10.-8/-2 can't represent calculating a mean change in score because a mean change in score is counted by adding up the scores & then dividing it by the number of the scores. As a number of scores can never be negative, so -8 can't be divided by -2 . So, -8/-2 can't represent this.
6. a) Andrea's mean weekly change will be negative. Because after adding up her weekly changes, we'll find a negative number. & as the number of weeks is positive, then the mean will be a negative number .
b)the division equation is: -15/5
So, her mean weekly change is -3
Step-by-step explanation:
I know it's late, but I hope it helps
Related Questions
Put these fractions in order starting with the smallest:
A-
7/10 3/5 9/20 23/30 4/5
B-
3/10 4/15 9/10 11/15 17/20
C-
9/4 4/3 5/3 7/4 7/5.
D-
17/7 23/7 24/5 17/5 11/35
Thanks<3
Answers
Answer:
A- 9/20 3/5 7/10 23/30 4/5
B- 4/15 3/10 11/15 17/20 9/10
C- 4/3 7/5 5/3 7/4 9/4
D- 11/35 17/7 23/7 17/5 24/5
Two triangular pyramids have slant heights of 8 inches and 11 inches. What is the ratio of the surface area of the small pyramid to the surface area of the large pyramid?
Group of answer choices
Answers
Answer:8:11
Step-by-step explanation:if it’s a ratio it would be 8 to 11 but for the to it would be a ratio operation and equals :
6^2 – 7(8 + 6. – 3^2)
The value of the expression is
?
Answers
Ghhvfyjbdginvff hjjjn
An isosceles triangle has two sides of equal length. The third side is 5 less than twice the length of one of the other sides. If the perimeter of the triangle is 23 cm, what is the length of the third side?
Explain how you would define a variable for this problem.
Answers
Explain how you would define a variable for this problem.
‼️please help ASAP.
Answers
Which expression is equivalent to 1/2a + c - (3/2a - 3/4b) + 1/3c?
A. 2a - 3/4b + 1/3c
B. 2a - 3/4b + 4/3c
C. -a + 3/4b + 4/3c
D. -a - 3/4b + 4/3c
Answers
Answer:
C. -a+3/4b+4/3c
Step-by-step explanation:
It's right!
write an expression equivalent to (5p^2-3)+(2p^2-3p^3) in standard format
Answers
Answer:
-3p^3+7p^2-3
Step-by-step explanation:
I NEED HELP FAST!!!!!!!
Answers
Complete the statement.
48 fl oz = _____ qt
12
1 1/2
1,536
6
Answers
Answer:
B. 1 1/2 qt
Step-by-step explanation:
1 qt = 32 fl oz
1/2 qt = 16 fl oz
32 + 16 = 48
Therefore, your answer would be 1 1/2 qt
A cone has a volume 7065in and a height of 30 in what is the radius of the cone?use 3.14 for pi
Answers
Answer:
15 inches.
Step-by-step explanation:
V = 1/3 pi r^2 h
7065 = 1/3 * 3.14 * 30 * r^2
r^2 = 7065 / (1/3 * 3.14 * 30)
r^2 = 7065 / 31.4 = 225
r = sqrt 225 = 15.
HURRY!
What are all the possible rational solutions for x^4-3x^2+2x5=0
Answers
Answer: x = 1
x =(-3-√-15)/4=(-3-i√ 15 )/4= -0.7500-0.9682i
x =(-3+√-15)/4=(-3+i√ 15 )/4= -0.7500+0.9682i
x2 = 0
Step-by-step explanation:
A salesperson at a jewelry store earns 3% commission each week. Last week, Jarrod sold $750 worth of jewelry. How much did he make in commission?
Answers
Answer:
hello what are you telling here............
Step-by-step explanation:
Evan is going to an amusement park. The price of admission into the park is $40, and
once he is inside the park, he will have to pay $2 for every ride he rides on. How
much money would Evan have to pay in total if he goes on 15 rides? How much would
he have to pay if he goes on r rides?
Answers
Answer:
70
40+2r
Step-by-step explanation:
x= number of rides
40+2x
plug in 15 for x
40+2(15)
70
for hte other part just replace x with r
40+2r
Triangles ABC and CDE are mathmatecilly similar. work out the length of DE. WORK OUT THE LENGHT OF AB
Answers
Answer:
[tex]DE = 15[/tex]
[tex]AB = 6[/tex]
Step-by-step explanation:
Given
See attachment for triangles
Required
Determine the lengths of DE and AB
To solve for DE, we make use of the following equivalent ratio
[tex]AC : BC =CE:DE[/tex]
Substitute values
[tex]8:5 = 24:DE[/tex]
Express as fraction
[tex]\frac{8}{5} = \frac{24}{DE}[/tex]
Cross Multiply
[tex]DE * 8 = 24 *5[/tex]
[tex]DE * 8 = 120[/tex]
[tex]DE = 120/8[/tex]
[tex]DE = 15[/tex]
To solve for AB, we make use of the following equivalent ratio
[tex]AB : BC =CD:DE[/tex]
Substitute values
[tex]AB : 5 = 18 : 15[/tex]
Express as fraction
[tex]\frac{AB}{5} = \frac{18}{15}[/tex]
Multiply by 5
[tex]5 * \frac{AB}{5} = \frac{18}{15}*5[/tex]
[tex]AB= \frac{18}{15}*5[/tex]
[tex]AB= \frac{18}{3}[/tex]
[tex]AB = 6[/tex]
PLZ HELP MEEEEEE WILL GIVE BRAINLIEST
Answers
Answer:
1. X=1/2y+5/2 or y=2x-5, 2 picture
2. X=-3/2y+6 or y=-2/3x+4, 2 picture
3. X=-1/2y+-11/2 or y=-2x-11, 1 picture
4. X=-0.5y+1.5 or y=-2x+3
5. Y=4/3x-9
6. Y=1/4x-2
Step-by-step explanation: I can give you 5 picture, I can’t give you the another step-by-step, hope this help
Find the value of x in the parallelogram
Answers
HELPPPPP MEEEE PLZZZ
Which statement about inequalities is NOT true?
A. An inequality may have integer and rational solutions.
B. An inequality may have positive and negative solutions.
C. If a < b, then b > a.
D. if a < b, then b < a.
Answers
Answer:
D
Step-by-step explanation:
if a<b,then b<a is the answer
answer please. most accurate gets branliest.
Answers
Answer:
m∠U = 36°
m∠V = 75°
m∠T = 69°
Step-by-step explanation:
(2x+14)+(6x+9)+(6x+3)=180
Combine like terms: 14x+26=180
Solve this equation: x=11
Use x=11 to find angles
∠U = 36°
∠V = 75°
∠T = 69°
You can add up all of these measurements to check. =180°
Answer:
The measures of the 3 angles are:Angle T = 69°Angle U = 36°Angle V = 75°Step-by-step explanation:
The Triangle Sum Theorem states that the 3 angles of a triangle must add up to 180°.
We don't know the angles of the triangle, but we do know that the sum of all three unknown angles is 180°.
We set the three expressions together as equal to 180°.
6x + 3 + 6x + 9 + 2x + 14 = 180
Simplify
14x + 26 = 180
Subtract 26
14x = 154
x = 11
Now, we check our answer for x.
6(11) + 3 + 6(11) + 9 + 2(11) + 14 = 180
69 (measure of angle T) + 75 (measure of angle V) + 36 (measure of angle U) = 180
180 = 180 ✅
Note that once we found x, would substitute it in and get the needed measures. Since the needed measures add up to 180°, we know that our answer is correct.
The measures of the 3 angles are:Angle T = 69°Angle U = 36°Angle V = 75°Can someone help me with this please
Answers
Answer:
hi
Step-by-step explanation:
Write the equation of the line in standard form of the line that passes through (-3, 9) and has a slope of 3.
Answers
Answer:ez just divise all
Step-by-step explanation:
An oak tree is planted when it is 750 centimeters tall. What is this height in meters?
Answers
Answer:
7.5
Step-by-step explanation:
750/100=7.5
Answer:
7.5 meters
Step-by-step explanation:
If 100cm=1m
Then 750cm= 750÷100
Therefore 750cm to meters= 7.5m
Explain how to find the distance between 1.5 and any point, n, on a number line.
Answers
Four months of the year have thirty days only. What fraction of the set
of months is this?
Answers
Answer:
4/30 or 4/120
Step-by-step explanation:
5-2(3 - x) = 4x + 10
Answers
Answer:
False
Step-by-step explanation:
5-2(3-x) =
3(3-x) = (not sure about this step)
9-x, this answer does not equal 4x + 10
5 - 6x = 4x + 10
-4x. 4x
——————————-
5 - 2x = 10
-5. -5
————————
-2x = 5
—- —-
-2. -2
——————-
x= -2.5
Mary and Tom were buying a present for their mother for Mother's Day. Mary spent $12 and Tom spent $28. If they want to share the cost equally, how much money does Mary owe Tom?
Answers
Answer:
mary owes tom $8
Step-by-step explanation:
Please give brainliest !!
20 POINTS
if you dont know the answer please dont answer
12x+24y=48
Answers
Answer:
x=2 y=1
Step-by-step explanation:
12 times 2 equals 24
24 time 1 equals 24
24+24=48
Find the value of x
Please help me :)
Answers
Answer:
The answer should be 142 as triangles have a value of 180
Step-by-step explanation:
ind the measure of angle ABC.
B
8x
6x
6x
A
C.
Ok my bad last question anyways ❤️URGENT 25 EACH❤️
Answers
Answer:
angle ABC=72 degrees
Step-by-step explanation:
8x+6x+6x=180 degrees (all triangles contain 180 degrees)
20x=180
x=9
angle ABC=8x or (8)(9)=72 degrees
Answer:
72°
Step-by-step explanation:
Angle A = 6x
Angle B = 8x
Angle C = 6x
The sum of all interior angles in a triangle is 180°, which means angles A, B and C add up to 180:
A + B + C = 180
substitute in the values for A B and C:
6x + 8x + 6x = 180
Simplify by combining like terms:
6x + 6x + 8x = 180
20x = 180
solve for x:
20x/20 = 180/20
x = 9
Since we know x = 9 and angle B = 8x, u can substitute in the value of x to find the value of angle B:
B = 8x
B = 8(9)
B = 72°
hope this helps!
After eating at the restaurant, Benny, Dan, and Mike decided to divide the bill evenly. If each person paid 47 dollars, what was the total of the bill ? What equation should be used? (write the equation followed by the answer)
Answers
Leo wants to determine the average number of texts middle school students send in a day. Since all middle school
students are enrolled in history, he randamly surveyed 4 'students from each of Mr. Barnes's eighth-grade history
classes. Ms. Lopez and Mrs. Frank also teach eighth-grade history. What should Leo do to ensure his sample is
representative of all middle school students?
O He should take the sample as is because he randomly surveyed students in each of Mr. Barnes's classes.
He should also take a sample from Ms. Lopez's and Mrs. Frank's classes so that each student has the same
chance of being chosen.
O He should also take a sample from each of the other history classes in all of the other grades in the middle school.
O He should survey al the students in all the history classes to make sure he collects enough data.
Mark this and return
Save and Exit
Next
Submit
Answers
Answer:
3rd Choice
Step-by-step explanation:
He is looking to collect a sample representing middle school students, not just 8th grade students. He needs to get all the data from all the middle school students.