Solve these equations:
3|x+5|=7
| = absolute value
Answer:
x=-8/3
x=-22/3
Step-by-step explanation:
Answer:
3x-5=7
Step-by-step explanation:
Aimee has 2 sisters in her family. She thinks the probability of a family having 3 children who are all girls is ¼ because there can be 0 girls, 1 girl, 2 girls or 3 girls.
Aimee designs a simulation to test her prediction. She flips a coin 3 times in a row and records the results. She uses heads to represent a girl and tails to represent a boy. After 10 trials of this simulation, Aimee gets the following results.
1 2 3 4 5 6 7 8 9 10
BBB GBB GGG GGB BBG GGB BGG BGB BBG GBB
Does ¼ seem like a reasonable probability of having 3 girls? Use a tree diagram to model and support your thinking.
Estimate the probability of having 3 girls using the results from Aimee’s simulation.
Answer:
Step-by-step explanation:
Help a guy/girl/non-binary out? Please?
Suppose 288 electricians took a certification test that is worth 140 points. The five-number summary for the scores is shown here.
min. value = 68
Q1 = 110
median = 125
Q3 = 130
max. value = 138
About how many electricians had a score of 110 or less? A: 72 B: 130 C: 144 D: 216
Answer:
72
Step-by-step explanation:
For Q 1 : 25 % of the scores are below this value. The area under the bell-shaped curve of the normal distribution is 0.25. And since we have 288 electricians that took a certification test:
0.25 * 288 = 72.
I will give brainiest please answer and explain nummber 3
Answer:
Part A: 56
Part B: 43.9
Part C: I think the medain is more apropriate in this situation because it takes out the outlier , 3, that is affecting the mean
Step-by-step explanation:
Part A: To calculate the median you must have all of the numbers in numerical order so, 3,31,37,56,57,61,62, The medain is the number in the middle or closet to the middle. In this case 56 is directly in the middle so 56 is your median.
Part B: To find the mean you must add all of the values together and then divide by the number of values you have so when you add 3+31+37+56+57+61+62 it equals 307 and you divide it by 7 because there are 7 numbers in this data set and you get 43.9 when you round to the nearest tenth.
Part C: explanation in answer.
Hope this helps :)
Answer:
for part a you can just go to an excel numbers in a column then click sum then click medien then select the column.
Step-by-step explanation:
PLEASE HELP THIS ONE IS HARD. WHAT IS 8 TIMES 8??? IVE TRIED ALOT BUT CANT GET IT!
Answer:
8*8=64
Step-by-step explanation:
Don't worry! Keep on trying! I hope this helps! Have a great rest of your day!
Solve the linear system using substitution. Show your work.
-8x + 3y = -33
y = -5x + 35
Answer:
x = 6 y = 5
Step-by-step explanation:
-8x + 3y = -33
y = -5x +35
-8x + 3(-5x + 35) = -33
-8x - 15x + 105 = -33
-23x + 105 = -33
-23x = -138
x = 6
-8(6) + 3y = -33
-48 + 3y = -33
3y = 15
y = 5
help (sketch not needed)
Answer:
If it's a regular hexagon then u just need one side of it. If it's not then i don't know
The cost of renting a canoe to use on River Y costs $. The cost of renting a canoe to use on River Z costs $ per hour plus a $ deposit. The total cost, c, of renting a canoe on either river for n hours can be represented by an equation. Write and graph a system to find how many hours you have to rent a canoe for the cost to be the same on both rivers.
Answer:
The total cost, c, of renting a canoe on either river for n hours can be represented by an equation. Write and graph a system to find how many hours you have to rent a canoe for the cost to be the same on both rivers.
Step-by-step explanation:
who ever gets this right will get a brainlest
Answer:
25 .2 is answer
Step-by-step explanation:
please i really need help
who ever gets this right will get a brainlest
Match the number with its opposite. (4 points)
Column A
1.
9.2 :
9.2
2.
-2.9 :
-2.9
3.
-1.4:
-1.4
4.
4.1:
4.1
Column B
a.
-9.2
b.
-4.1
c.
2.9
d.
1.4
Question 2 (3 points)
(03.03)
The point R is halfway between the integers on the number line below and represents the number . (Use the hyphen for negative numbers and write the answer as a decimal, such as -6.4).
Number line from negative 10 to positive 10 in increments of 1 is shown. In between the whole numbers, there should be a tick mark. Only the whole numbers are labeled. A point labeled R is placed halfway between the 3rd and 4th tick marks to the left of 0.
(3 points)
Blank 1:
Question 3 (4 points)
(03.03)
On which number line do the points represent negative 4 and 1 over 2 and +3? (4 points)
a
Number line from negative 10 to positive 10 in increments of 1 is shown. Only the whole numbers are labeled. A point labeled R is placed between the 4th and 5th tick marks to the left of 0. A point labeled T is placed on the 3rd tick mark to the right of 0.
b
Number line from negative 10 to positive 10 in increments of 1 is shown. Only the whole numbers are labeled. A point labeled R is placed on the 3rd tick mark to the left of 0. A point labeled T is placed between the 4th and the 5th tick marks to the right of 0.
c
Number line from negative 10 to positive 10 in increments of 1 is shown. Only the whole numbers are labeled. A point labeled R is placed is between the 4th and 5th tick marks to the left of 0. A point labeled T is placed between the 2nd and 1st tick marks to the left of 0.
d
Number line from negative 10 to positive 10 in increments of 1 is shown. Only the whole numbers are labeled. A point labeled R is placed on the 1st tick mark to the left of 0. A point labeled T is placed between the 2nd and the 3rd tick mark to the right of 0.
Question 4 (3 points)
(03.03)
On which number line are –6 and its opposite shown? (3 points)
a
Number line from negative 10 to positive 10 in increments of 1 is shown. Only the whole numbers are labeled. A solid, blue point is placed on the 6th tick mark to the left of 0. A solid, blue point is on 0.
b
Number line from negative 10 to positive 10 in increments of 1 is shown. Only the whole numbers are labeled. A solid, blue point is placed on the 6th tick mark to the left of 0. A solid, blue point is on the 6th tick mark to the right of 0.
c
Number line from negative 10 to positive 10 in increments of 1 is shown. Only the whole numbers are labeled. A solid, blue point is placed on 0. A solid, blue point is on the 6th tick mark to the right of 0.
d
Number line from negative 10 to positive 10 in increments of 1 is shown. Only the whole numbers are labeled. A solid, blue point placed on the 6th tick mark to the left of 0. A solid, blue point mark is on the 3rd tick mark to the left of 0.
Question 5 (3 points)
(03.03)
Which of the following describes the location of the opposite of the number that R represents on this line?
vertical number line from negative 6 to positive 6 in increments of 2 is shown. Only the whole even numbers are labeled. A point labeled R is placed on the 6th tick mark below the 0.
(3 points)
a
At a distance of 6 tick marks below 0
b
At a distance of 6 tick marks above 0
c
At a distance of 12 tick marks below 0
d
At a distance of 12 tick marks above 0
Question 6 (3 points)
(03.03)
Which of the following values is equal to – (–8.2)? (3 points)
a
−8.2
b
0
c
8
d
8.2
Answer:
9.2 : - 2.9
2.
-2.9 : 9.2
3.
-1.4: 4.1
-1.4
4.
4.1: -1.4
Step-by-step explanation:
I think thats it i didn't undertsnad th equestion enough, and the way its written ouut is weird
BRAINLIEST FOR WHOEVER ANSWER CORRECTLY!!!
Answer:
39/50 and 0.78
Step-by-step explanation:
78% = 78/100 (or 78 hundredths) = 0.78
39 ÷ 50 = 0.78
Answer:
39/50
Step-by-step explanation:
Someone reported my comment becuase they were mad lol.
Please help I am kinda confused
Answer:
28≤4x
Step-by-step explanation:
If you want an explanation, let me know in the comments!
Marty went shopping for school supplies. He bought a package of pens for $2.25, a package of paper for $3.25, a notebook for $5.75, and a package of folders for $3.75. What was the range of prices for the school supplies that Marty bought?
Answer:
$3.50
Step-by-step explanation:
to find the range you take the highest number and the lowest number and subtract them
so with that, let us do just that-
$5.75, $3.75, $3.25, $2.25
$5.75-$2.25
=$3.5
and since we're dealing with money we must add a '0' to the end of the decimal- $3.50
good luck :)
i hope this helps
brainliest would be highly appreciated
have a nice day!
I WILL GIVE BRAINLIEST
For which of the figures can we apply Cavalieri's principle to show they have the same volume?
Answer: D : A, B, C
Step-by-step explanation:
screenshotted question under the cut
Answer:
2338.27 should be the answer
Step-by-step explanation:
The churches shown are concentric. Find the value of x.
Answer:
y
Step-by-step explanation:
ANSWER BOTH OR REPORT
Find the 3rd Quartile of:
1117, 1465, 513, 437, 1038, 954, 650, 893, 456, 1018
Find the 1st and 3rd Quartile of:
346, 250, 433, 369, 422, and 298.
Pls help :( (will get reported if link)
SHOW YOUR WORK
Can someone help?
(no files or links)
(Will give brainliest)
A floor plan of 's cheryl´s bedroom and closet is shown. The height of the bedroom is 7 feet. The height of the closet is 6 feet. What is the total volume of the bedroom and the closet? . Does it make sense for to find the combined area of the bedroom floor and closet floor before finding the total volume? Explain your thinking.
Answer:
The total volume of the bedroom and closet is 42 feet or sq2
No, it doesn't make sense to find the bedroom floor and closet floor area combined because this is abt the height and volume, not the flooring plan (area)
Step-by-step explanation:
You multiple 7*6 to get the 42 answer
I need help explaining, I know the answer, but I don't know how I got the answer
Find the interest
principal 20,000
rate 12%
Time 3 months
Answer:
The interest is +7466.6 per month.
An artist mixes paint to make new colors.
She uses 1/3 cup of red paint and 1/3 cup of yellow paint to make a batch of orange paint.
If the artist has 2 cups of red paint available and 3 cups of yellow paint available, how many batches of orange paint can she make?
Enter your answer in the box.
Answer:
6 batches of orange paint can be made.
Step-by-step explanation:
2 cups of red paint can go to 6 cups of 1/3 a batch of red paint, and 3 cups of yellow paint can go to 9 cups of 1/3 a batch of yellow paint.
She then combines 6 cups of 1/3 cups of red paint with 6 cups of 1/3 cups of yellow paint. The reason it is not 9 is that she doesn't have 3 extra 1/3 cups of red paint.
6 batches of orange paint can be made, with 3 extra 1/3 cups of yellow paint.
Solve the equations: 3x+5 = 2(x+1)-5
Answer:
-8
Step-by-step explanation:
3x+5=2(x+1)-5
3x+5=2x+2-5
3x-2x=2-5-5
x=-3-5
x=3+5
x=-8.
Hope it helps if it helps don't forget to like and mark me
Answer:
= −8
Step-by-step explanation:
please please my dyslexia is a pain.
Answer:
Area: 312
Perimeter: 75
Step-by-step explanation:
Area is l·w
20·16=320
two corners aren't filled
320-9-9=318
Add all the sides for perimeter
17+3+3+13+20+13+3+3=75
Answer:
281 m squared
Step-by-step explanation:
What we can first do is find the top length so we can do
17+3+3=23
then we can multiply it by the side length to get the whole rectangle
23*13=299
and we know each of the little areas is 9, and there are two so
9+9=18
and we can subtract that from the whole rectangle
299-18=281
Which one of the numbers does not belong in the following series?
2 - 5 - 7 - 14 - 41 - 122 - 365 - 1094 - 3281
A-FIVE
B-SEVEN
C-FOURTEEN
D-FORTY-ONE
E-ONE HUNDRED TWENTY-TWO
Answer:
i think 7
Step-by-step explanation:
Option B: SEVEN
The number that goes not belong in the following series is SEVEN
Given :
The numbers in the series is
2 - 5 - 7 - 14 - 41 - 122 - 365 - 1094 - 3281
First number is 2
[tex]2 \cdot 3 -1=5\\[/tex]
Lets multiply the previous term by 3 and subtract 1 to check the other terms
[tex]5 \cdot 3 -1= 14\\14 \cdot 3 -1= 41\\41 \cdot 3 -1= 122\\122 \cdot 3 -1= 365\\365 \cdot 3 -1= 1094\\1094 \cdot 3 -1= 3281\\[/tex]
From the series we can see that 7 does not belong to the series .
So, SEVEN does not belong to the series .
Learn more : brainly.in/question/7279677
You choose between red or yellow wallpaper, and orange, red, green, blue, or purple carpet. Use the fundamental counting principle to find the total number of possible outcomes when you select one color of wallpaper and one color of carpet. *
7
5
10
12
Answer:
C. 10
Step-by-step explanation:
There are 5 choices of carpet, and 2 choices of wallpaper. This means that there are only 10 possible outcomes.
The total number of possible outcomes when you select one color of wallpaper and one color of carpet is,
⇒ 10
What is Combination?A combination is a technique to determines the number of possible arrangements in a collection of items where the order of the selection does not matter.
Given that;
You choose between red or yellow wallpaper,
And, orange, red, green, blue, or purple carpet.
Since, There are 2 wallpapers.
And, There are 5 carpets.
Hence, The total number of possible outcomes when you select one color of wallpaper and one color of carpet is,
⇒ ²C₁ × ⁵C₁
⇒ 2 × 5
⇒ 10
Thus, The total number of possible outcomes when you select one color of wallpaper and one color of carpet is, 10
Learn more about the combination visit:
brainly.com/question/28065038
#SPJ3
Of the 220 tickets available for a school play, 45% have been sold.
What is the number of tickets that have sold?
A. 99
B. 175
C. 489
D. 990
Answer:
A.
Step-by-step explanation:
Hope this helps and have a great day!!!!
Answer:
A 99
Step-by-step explanation:
you would multiply 220 by .045 and get 99.
What are the dimensions of this matrix?
2
3
6
9
Answer:
4 x 1
Step-by-step explanation:
The dimensions of matrix id determined by it's no. of rows x no. of columns
Since this matrix has 4 rows and 1 column, hence 4 x 1
