Answer:
make a two-way chart.
Step-by-step explanation:
i think- sorry if it's wrong.
I need help with this please
Step-by-step explanation:
I don't see the options I can select, but it should be something like "sum".
it is also the "sum" of the areas of the rectangles separated by the dashed line (6×5 and 6×4). so, 6(9) = 6(5) + 6(4).
it is strangely written.
but 6(9) simply means 6×9 or 6×(9). one could also write (6)(9). and the same for 6(5) and 6(4).
A line contains the points P(1, 1) and Q(7, 10). What is the slope of the line?
Answer:
[tex] \frac{3}{2} [/tex]
Step-by-step explanation:
to find the slope (gradient) use the formula
[tex]slope = \frac{change \: in \: y}{change \: in \: x} [/tex]
[tex] slope = \frac{10 - 1}{7 - 1} [/tex]
[tex]slope = \frac{9}{6} [/tex]
9/6 can be simplified to 3/2 (as you do 9 ÷ 3 = 3 and 6 ÷ 3 = 2)
the slope is 3/2
What percent of 50 is 85
Answer:
85% of 50 is 42.5
Step-by-step explanation:
Just try it. Your question is kind of confusing but 85% of 50 is 42.5.
Hi!
I like to think of this as " 85 = what percent of 50?" We can represent the percent as a variable, and "of" means multiplication, therefore:
80 = 50x
Now, divide both sides by 50.
This is 1.6
To get this as a percentage we multiply by 100.
1.6 x 100 = 160%
See here for more information:
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Can some please help me ASAP
I will give brainiest
Answer:
Step-by-step explanation:
The graph shows a proportional relationship between the number of kilometers traveled by a bicycle (y) and the number of minutes (x).
What is the unit rate, expressed in kilometers per minute?
0.30 km/min
0.33 km/min
3.10 km/min
3.33 km/min
graph with x axis labeled time in minutes and y axis labeled distanced traveled in kilometers. a line starts at the origin 0 comma 0 and runs through the point 40 comma 12
The unit rate of the bicycle is 0.3 kilometers per minute.
Linear equationA linear equation is in the form:
y = mx + b
where y, x are variables, m is the rate of change and b is the y intercept (initial value of y).
Let y represent the km travelled by the bicycle after x minutes. From the graph using the point (0, 0) and (40, 12), hence:
Unit rate (m) = (12 - 0)/(40 - 0) = 0.3 km/min
The unit rate of the bicycle is 0.3 kilometers per minute.
Find out more on Linear equation at: https://brainly.com/question/14323743
HELP PLS PICTURE DOWN BELOWW I RLLY NEED HELP
Answer:
Step-by-step explanation:
(6x2)/2=6
6x4=24
2x2=4
24+4=28cm^2
please help me with this
Answer:
b
Step-by-step explanation:
If the measure of an acute angle is represented by x, then the measure of its complement
is represented by 90 – X.
always true
sometimes true
never true
Answer:
always true
Step-by-step explanation:
complement equals that angle plus another one adds to 90. If you know that it's less than 90 degrees, then you subtract it from 90 to get the other angle which is the complement. Hope this helps!
You can buy 2.5 pounds of bananas for $1.00. How much will 8 pounds of bananas costs
Answer:
They will cost $2.90
Step-by-step explanation:
hope this helped <3
Answer:
$3.50
Step-by-step explanation:
If you think about it, it's like quarters. You can get 5 pounds for $2, and 7.5 pounds for $3. so then you add another 50 cents to it to get 8 pounds, you get $3.50.
PLEASE HELP me with this question
Answer:
EC/BC = DE/AB
Step-by-step explanation:
There are multiple answers for this, but this should work as well. EC is proportional to BC, and AB is proportional to DE, so one answer is: EC/BC = DE/AB
please please help *image attached* it’s ap calc ab
The average rate of change of a function f(x) over some interval [a, b] is the difference quotient,
[tex]\dfrac{f(b)-f(a)}{b-a}[/tex]
which corresponds to the slope of the line connecting the points (a, f(a)) and (b, f(b)) in the graph of f(x).
Given f(x) = 3x² - x³ (correct me if I'm wrong, the exponents look cut off in your screenshot), the average rate of change on [1, 5] is
[tex]\dfrac{f(5)-f(1)}{5-1}=\dfrac{(3\cdot5^2-5^3)-(3\cdot1^2-1^3)}4 = \dfrac{75-125-3+1}4 = \boxed{-13}[/tex]
The spinner below is spun once. What is the probability of not landing on a heart?
Answer:
5/7
Step-by-step explanation:
There are 7 spots
5 are not hearts
P( not hearts) = not hearts/ total = 5/7
Answer:
5/7 or 71% as probability
Step-by-step explanation:
there are 7 spaces, 2 are filled with a heart, 7-2=5.
Therefore, since there are 5 other spaces that are NOT filled with a heart, its a 5/7 (5 out of 7) probability of the spinner not landing on a heart, also known as 71% if you do the math.
Hope this helps!
brainliest please?
Question 3
Senja has 105 solid-colored disks that are either red, blue, or green. She lines them up on the floor and finds that there are
30 more red disks than green and 21 more green disks than blue. How many red disks does she have?
A. 11
B
18
ооооо
C. 32
D. 52
E. 62
Answer:
E. 62
Step-by-step explanation:
Answer:
blue = 32
red = 62
Answer:
E. 62
Step-by-step explanation:
If we let r, g, b represent the numbers of red, green, and blue disks, respectively, we are given the following relations:
r + g + b = 105 . . . . there are 105 disks, total
r -g = 30 . . . . . . . . . there are 30 more reds than greens
g -b = 21 . . . . . . . . . there are 21 more greens than blues
We can use the third equation to substitute for b in the first equation.
b = g -21 . . . . . third equation solved for b
r + g + (g -21) = 105 . . . . substituted into the first equation
r +2g = 126 . . . . . . . . . . . add 21 and simplify
Now, we can use the second equation to substitute for g in the one we have just written.
g = r -30 . . . . . . second equation solved for g
r +2(r -30) = 126 . . . . . . substituted into our equation for r and g
3r = 186 . . . . . . . . . . . . . simplify and add 60
r = 62 . . . . . . . . . divide by 3
Senja has 62 red disks.
__
Additional comment
g = 62 -30 = 32
b = 32 -21 = 11
Senja has 11 blue and 32 green disks, as well.
A biologist wants to see if rats running in a maze use some kind of decision process on how to proceed when they come to an intersection. To do so she decides to simulate the situation by assuming the decisions are random, so she creates a "virtual rat" that at each intersection tosses a coin to decide which way to go. She lets the virtual rat run the maze 1,000 times, and finds the average length run is 14. 8 feet, with a standard deviation of 2. 4 feet. She then lets a real rat run the maze, and measures the length run to be 13 feet. Explain what conclusion the biologist can make.
She then lets a real rat run the maze and measures the long run to be 13 feet.
What is a normal distribution?
A function that represents the distribution of many random variables as a symmetrical bell-shaped graph.
We first need to find the z-score which is given by applying the following formula:
z-score = (X-μ) ÷ σ
Where: μ is the average, σ is the standard deviation, X is the sampled value.
Therefore,
z-score = (13-14.8) ÷ 2.4
z-score = -0.75
Finding the probability, or the p-value by looking upon the z-table
P(Z<z) = P(Z<-0.75) = 0.2266
The conclusion that the biologist could make is that out of 1000 virtual rats, there are 0.2266×1000 = 226.6 ≈ 227 virtual rats that run the maze with a length of 13 feet.
Hence, She then lets a real rat run the maze and measures the long run to be 13 feet.
To know more about Normal distribution click the link given below.
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Four students shared 50 marbles so that one gets 10, one gets 12, and another gets 20, what percentage of the set of marbles did the 4th child get?
Answer:
the 4th students gets 8 marbles
Step-by-step explanation:
10+20=30+12=42
50-42=8
BA ∩ LC = K △BLK≅ △_____ by _____
Answer:
CAN NOT BE DETERMINED
Step-by-step explanation:
"A unit rate compares one measurement of something to ______ of another measurement."
Answer:
different number of units
Nayara wants to know the percentage of each grade level of students at her school who drive to school. She has 444 grade levels in her school.
Which of the following survey methods will allow Nayara to make a valid conclusion about what percentage of each grade level of students drive to school?
Randomly select 12 students from each grade level and ask whether they drive to school.
Please hurry. Thank you
Tan = Opposite/Adjacent
Sin = Opposite / Hypotenuse
Cos = Adjacent / Hypotenuse
Step-by-step explanation:
1.) C. 5/12
2.) B. 12/13
3.) A. 12/5
4.) B. 12/13
calculate the mean, median, and mode. help ??
72, 74, 63, 74, 82, 63, 74, 60, 75, 83
Answer:
mean= 72
median= 74
mode= 74
Step-by-step explanation:
Mean (Average)
Mean= sum of all the valves/ Number of valves
values or observations.
72+74+63+74+82+63+74+60+75+83 / 10
=720/10
=72
720 comes in the table of 10 in 72×10=720
Median
arrange in ascending order;-
60,63,63,72,74,74,74,75,82,83
74 is the mid value
Mode
the value that appears maximum number of times in a data.
the number that we can see that appears number of times is 74 because, it appears 3 times.
Jill has been weaving baskets to sell at local craft shows. At the last show, she sold each basket for $25 and sold out of them. Since they sold so well, Jill has decided to increase the price of a basket to $32. By what percent is the price changing? **STEP BY STEP EXPLANATION PLEASE AND THANK YOU!!**
Answer:
28%
Step-by-step explanation:
32-25=7
7/25=0.28
0.28x100=28
28%
Hi! can anyone help me? Question is down in the picture below! 10 points! Thank you!
Answer:2
Step-by-step explanation:
I’m not exactly sure bc I’ve never heard a problem like that before but I believe that’s correct.
A store sold 40 more basketballs than soccer balls last month.
.
They sold a soccer ball for $33 and a basketball for $18.
• The store sold $4,800 worth of soccer and basketballs last month.
.
What was the total number of basketballs and soccer balls the store sold last month?
(Show work)
Answer:
soccer balls = 80
basketballs = 120
Step-by-step explanation:
let S = number of soccer balls sold
let B = number of basketballs sold
If the store sold 40 more basketballs than soccer balls, then
B = S + 40
If the store sold $4800 worth of soccer and basketballs last month at a cost of $33 for a soccer ball and $18 for a basketball, then:
33S + 18B = 4800
Substitute the first equation B = S + 40 into the second equation and solve for S:
33S + 18(S + 40) = 4800
33S + 18S + 720 = 4800
51S + 720 = 4800
51S = 4080
S = 80
Substitute S = 80 into B = S + 40 to find B:
B = 80 + 40 = 120
Convert 72 miles per hour into feet per second, please show work
PLEASE HELP ME!!!! I really need to get a good grade on this assignment I WILL give brainly points
 The owner of an office park wants to carpet a hallway connecting two buildings. The carpet costs $1.75 per square foot. How much does it cost to carpet the hallway?
PLEASE ANSWER
The cost of the carpet is $526.75
Area of triangle and rectangleBased on the information given:
The carpet costs $1.75 per square foot
Get the area of the carpet
Area = 24(7) + 7(15) + 0.5(28) + 0.5(28)
Area of the composite figure = 273 + 28
Area of the composite figure = 301 ft²
Cost of the carpet = 301 * 1.75
Cost of the carpet = $526.75
Hence the cost of the carpet is $526.75
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Which complex number is equivalent to the given expression?
(2 + i)(8 – 3i) - (23 + 34i)
A. -4 - 32i
B. – 10 + 48i
C. -10 -20i
D.- 13 - 36i
Answer:
B
Step-by-step explanation:
the wires are separated by 0.20 m. at what point between the two wires are the contributions from the two wires the same?
Answer:
B
Step-by-step explanation:
Write a polynomial that describes the area of the shaded reigon
The shaded area = The big square area - small square area
square area = side²
(x+4)² - 4
= x² + 8x +16 - 4
= x² +8x +12
⅓ of your birthday cake is leftover from your party. If you eat ¼ of the leftover cake, what fraction of the original birthday cake is left?5 x (10 x 4)
Answer: 1/4
Step-by-step explanation:
If you think of the original cake in terms of twelfths, then 4/12 are left over, and you eat a quarter of 4/12, which is 1/12. That means 3/12 = 1/4 of the original cake is left over.
You could also multiply 1/4 * 1/3 = 1/12 which is the amount you ate, and subtract that from 1/3 to get the amount left:
1/3 - 1/12 = 4/12 - 1/12 = 3/12 = 1/4.
