Answer:
15
Step-by-step explanation:
combine -43 and -13 to get 66
71-66 = 15
find the missing value
Answer:
-10
Step-by-step explanation:
since the answer is positive, we need a negative number, if we use -10,two negatives makes a positive, so it becomes
-8 +10=2
in a bag of marbles there are 8 red 4 blue and 2 green. the ratio of green to red marbles is 1 to ___
Answer:
for every green marble, there is 4 red ones
the ratio is 1 to 4
look at the multipication in the box.
use the same integers to write down two divisions
Answer:
-30 ÷ 6= -5
-6 × 5 = -30
-30 ÷ -5 = 6
Step-by-step explanation:
jaelyn drew a figure whose area was 12 square units
Answer:
3
Step-by-step explanation:
The figure below shows a rectangular parking lot.
83 yd
62 yd
Answer:
Area= 5,146 yds Perimeter= 290 yds
Step-by-step explanation:
If you are finding the area it's 5,146 yards. And if you are finding the perimeter, it's 290. Hope this helped
What is the first step when rewriting y = –4x2 + 2x – 7 in the form y = a(x – h)2 + k?
Answer: it might be D
Step-by-step explanation: I think so on edge -4 must be factored from -4x^2-7
Answer:
It Is actually B just took the test
Step-by-step explanation:
I NEED HELP PLEASE!!
Answer:
ACE
Step-by-step explanation:
Please help this is a test grade I have 3 mins left
Greetings! Hope this helps!
Answer
Initial volume = 65
Final volume = 69
Object volume = 4
Have a good day!
_______________
A brainliest would help tons! :D
Answer:
initial= 65
final = 69
object volume = 4
Step-by-step explanation:
at first the water its up to 65 then when the object is placed inside the water goes up 4 so the obeject volume is 4
The average distance of Mercury from the Sun is 36 million miles. The distance varies by 7.5 million miles.
Use this information to complete this statement.
The minimum distance of Mercury from the Sun is ___ million miles, and the maximum distance is ___ million miles.
Answer:
The minimum distance of Mercury from the Sun is
28.5
million miles, and the maximum distance is
43.5
million miles.
Step-by-step explanation:
its the right answer
you add or subtract 7.5 from 36 to get the minimum and maximum because thats the distance from 36 that it varies
Answer:
#1. 28.5
#2. 43.5
Over the last 6 months, Josh wrote 6 checks for a total of $702 to pay his phone bill. His phone bill is the same amount each month. What was the change in Josh’s bank account balance each month after paying his phone bill?
A) $117
B) $702
C) −$117
D) −$702
Answer:
C
Step-by-step explanation:
702divded by 6=117
hes taking away
Answer:C
Step-by-step explanation:702 divided by 6 is 117 he is paying 117 each month so he is taking $117 out of his account so -$117
Which deduction is optional?
A. FICA
B. Social Security
Ο Ο
C. Disability insurance
D. Medicare
SUBMIT
IN
PREVIOUS
Answer:
disability insurance
Step-by-step explanation:
can someone help me with this?
Answer:
option c
Step-by-step explanation:
just i cant explain but i know it
Answer:
option 2
Step-by-step explanation:
Write all the integers between - 20 and -15.
Answer:
hey mate here is ur answer
Step-by-step explanation:
-21, -20, -19, -18, -17, -16 ,-15 -14
These are the numbers between -15 and -20....
Hope it helps you,
mark me as the brainliest,
follow me....
Find the digit that makes 3,80_divisible by 8.
A. 2.
B. 0. C. 4. D. 6.
Answer:
B,0
Step-by-step explanation:
3,802 divided by 8= 475.25
3,804 divided by 8= 475.5
3,806 divided by 8= 475.75
And 3800 divided by 0=475
I hope this helps ;p
HELP PLEASE
Choose a number from 1-50 at random. What is the probability that it is either divisible by 5 or divisible by 7?
the answer is 8/25
to get this answer i thought of all of the numbers divisible by 5 or 7 to 50 and i got 16 numbers (5,7,10,14,15,20,21,25,28,30,35,40,42,45,49,50)
i got the fraction of 16/50 then i simplified it to get 8/25 hope this helps
Complete the work to solve for y: 2 5 ( 1 2 y + 5 ) − 4 5 = 1 2 y − 1 + 1 10 y
Answer:
11/2
Step-by-step explanation:
Just took the assignment on edge 2020
What does X equal for this question?
Answer
2x
Step-by-step explanation:
The perimeter of a rectangular garden is 346 feet. If the length of the garden is 96 feet, what is it’s width?
Answer:
3 29/48
Step-by-step explanation:
this should be the width
c-x=d-d-r-cr solve for x how do i get the x alone? all these problems i have leave it as -x=
Answer:
x= r+cr+c
Step-by-step explanation:
Statement l Reason
----------------------------------------------------------------------------------------------------------------
c-x= d-d-r-cr l Given
----------------------------------------------------------------------------------------------------------------
-x= d-d-r-cr-c l Subtraction: First you need to subtract c from both sides
----------------------------------------------------------------------------------------------------------------
-x= -r-cr-c l Combine like terms
----------------------------------------------------------------------------------------------------------------
x= r+cr+c l Divide: You need to divide by negative one on both sides
Roberto Alberto rode his bike three-fourths of a mile 3 days in a row. He thinks he rode somewhere
between 2 and 3 miles.
A) Use the number line to show if Roberto Alberto is right or wrong.
Help! This is confusing and I don’t know how to do it. Thanks.
Answer:
reflection
Step-by-step explanation:
because the image of the car converted upside down in a vertical manner.
Pls help me with 4 , 5 , and 6 and show me how you did it i will mark brainlist !!
Answer:
2 on top and bottom of 4 5 is 3 on top and bottom and lastly 6 is 8 on top and bottom.
Step-by-step explanation:
all you have to do is divide the two bottom numbers on each problem and the answer to the problem will be the same on top and bottom
If the masses of the two objects stay the same, what must be done to reduce to gravitational force between them?
a. You must change the Gravitational constant
b. You must increase their distance from each other. (THIS ANSWER IS CORRECT)
c. You must change the material the objects are made of
d. You must give the objects an electric charge
Answer: b
Step-by-step explanation:
(So the answer doesn’t removed)
Is 11/2 greater than 4/8?
Answer:
yes it's
Step-by-step explanation:
11/2 is greater than 4/8
Measures of location - Mean, median, and mode
Consider the following set of sample data.
20 25 25 36 42 56 6974 98 100
For the given data, the mean is______ , the median is_______ , and the mode is_______ Suppose the value 98 in the data is mistakenly recorded as 78 instead of 98. For the sample with this error, the mean______ is the median is________ , and the mode is_______ . The mean the median________ , and the mode_______ Suppose the value 98 in the original sample is inadvertently removed from the sample. For the sample with this value removed, the mean is ______, the median is_______ , and the mode is_________ .
Step-by-step explanation:
1.
20+25+25+36+42+56+69+74+98+100 = 545
n = 10
Mean = 545/10
= 54.5
Median = 42+56/2 = 98/2 = 49
Mode = 25 since it occurred twice
2.
If 98 is recorded as 78
20+25+25+36+42+56+69+74+78+100
= 525
Mean = 525/10 = 52.5
Median = 42+56/2 = 98/2 = 49
Mode = 25
3.
If 98 is removed
20+25+25+36+42+56+69+74+ 100= 447
n = 9
Mean = 447/9 = 49.6
Median = 42
Mode = 25
The elevations of four locations are shown in the table, which statement is true
Answer:
its 5
Step-by-step explanation:
because if u dived your elavation bt times the equstin u get 5
Scott said that 0.09 was a bigger number than 0.1.
Use powers of 10 to show
that he is wrong.
he is wrong because 0.1 is also 0.10 greater than 0.09
The equation y = 7x represents a proportional relationship. What is the constant of proportionality?
A. 0
B. x
C. 7
D. 1/7
Answer: c. 7
Step-by-step explanation: it’s 7. I got that answer
Answer:
it is 7
Step-by-step explanation:
i got it right on quiz
find the value of x.
Answer:
x=8
Step-by-step explanation:
Set 40 + y = 90
y=50
y = 6x + 2
6x + 2 = 50
6x = 48
48/6 = x
x=8
Answer:
8
Step-by-step explanation:
(6x + 2) + 40 = 90 because the entire angle is a right angle, therefore the whole angle is 90
subtract 40 from each side: 6x + 2 = 50
now subtract 2 from each side: 6x = 48
now divide 6 from each side: x = 8
(a) Find the average and SD of the list 41, 48, 50, 50, 54, 57.
(b) Which numbers on the list are within 0.5 SDs of average? within 1.5 SDs of average? 2.
(a) Both of the following lists have the same average of 50. Which one has the smaller SD, and why? No computations are necessary. (i) 50, 40, 60, 30, 70, 25, 75 (ii) 50, 40, 60, 30, 70, 25, 75, 50, 50, 50
(b) Repeat, for the following two lists. (i) 50, 40, 60, 30, 70, 25, 75 (ii) 50, 40, 60, 30, 70, 25, 75, 99, 1
Answer:
1a) Mean = 40
Standard Deviation = 5
b)i Which numbers on the list are within 0.5 SDs of average?
48, 50, 50
ii) within 1.5 SDs of average?
48, 50, 50, 54, 57
2a)Both of the following lists have the same average of 50. Which one has the smaller SD, and why? No computations are necessary.
The list with the smaller S.D = (ii) 50, 40, 60, 30, 70, 25, 75, 50, 50, 50
This because the results obtained from the second list (ii) is close to the mean , therefore, the Standard deviation is small.
b) Repeat, for the following two lists.
The list with the smaller S.D = (i) 50, 40, 60, 30, 70, 25, 75
This because the results obtained from the second list (i) is close to the mean , therefore, the Standard deviation is small.
Step-by-step explanation:
1a) Find the average and SD of the list 41, 48, 50, 50, 54, 57.
Average (Mean) = Sum of terms/Number of terms
= 41+ 48 + 50 + 50+ 54 + 57/6
= 300/6
= 50
Standard Deviation for the population= √(x - Mean)²/n
=√ (41 - 50)²+ (48- 50)² + (50- 50)² +(50- 50)² + (54 - 50)² +(57- 50)²/6
= √81 + 4 + 0 + 0 + 16 + 49/6
= √150/6
= √25
= 5
(b) Which numbers on the list are within 0.5 SDs of average?
Mean ± Standard deviation × 0.5
50 ± 5 × 0.5
50 - 2.5
= 47.5
50 + 2.5
= 52.5
The numbers on the list are within 0.5 SDs of average are number within 47.5 and 52.5 : 48, 50, 50
ii) Within 1.5 SDs of average?
Mean ± Standard deviation × 1.5
50 ± 5 × 1.5
50 - 7.5
= 42.5
50 + 7.5
= 57.5
The numbers on the list are within 1.5 SDs of average are numbers within 42.5 and 57.5: 48, 50, 50, 54, 57
2 (a) Both of the following lists have the same average of 50. Which one has the smaller SD, and why? No computations are necessary.
(i) 50, 40, 60, 30, 70, 25, 75
Mean is already give as 50
Standard Deviation = √(x - mean)²/n
= √(50 - 50) + (40- 50)² (60 -50)² +(30- 50)² + (70 - 50)² + (25 - 50)² (75 - 50)² /n
= √0 + 100 + 100 + 400+ 400 + 625 + 625/7
= √2250/7
= √321.4285714
= 17.92842914
(ii) 50, 40, 60, 30, 70, 25, 75, 50, 50, 50
Standard deviation = √(x - mean)²/n
√(50 -50)²+(40-50)² + (60 -50)²+ (30-50)² + (70 - 50)²+ (25-50)² +(75-50)² + (50 -50)² + (50 - 50)²+(50 - 50)²/10
= √0 + 100 + 100 + 400 + 400 + 625 + 625 + 0 + 0 + 0/10
√2250/10
√225
= √15
The list with the smaller S.D = Second list (ii) 50, 40, 60, 30, 70, 25, 75, 50, 50, 50
This because the results obtained from the second list (ii) is close to the mean , therefore, the Standard deviation is small.
(b) Repeat, for the following two lists.
(i) 50, 40, 60, 30, 70, 25, 75
Mean is already give as 50
Standard Deviation = √(x - mean)²/n
= √(50 - 50) + (40- 50)² (60 -50)² +(30- 50)² + (70 - 50)² + (25 - 50)² (75 - 50)² /n
= √0 + 100 + 100 + 400+ 400 + 625 + 625/7
= √2250/7
= √321.4285714
= 17.92842914
(ii) 50, 40, 60, 30, 70, 25, 75, 99, 1
Standard Deviation = √(x - mean)²/n
= √(50-50)² +( 40 -50)² +( 60 - 50)² + (30 - 50)²+( 70 - 50)² + (25 - 50)² + (75 - 50)² +(99 - 50)² +(1 -50)²/9
= √0 + 100 + 100 + 400 + 400+ 625 + 625 + 2401 +2401/9
= √7052/9
= √783.5555556
= 27.99206237
The list with the smaller S.D = (i) 50, 40, 60, 30, 70, 25, 75
This because the results obtained from the first list(i) is close to the mean , therefore, the Standard deviation is small.
