Answer:
5.2
Step-by-step explanation:
9. Expand using identites.
1) (3/2 m - 5n) (3/2 m + 5n)
Answer:
(3/2 m)^2 -(5n)^2^
Step-by-step explanation:
Answer: 9m^2 / 4 - 25n^2
Step-by-step explanation:
Use the identity: (a-b)(a+b)=a^2 - b^2
substitute values of a and b, where a=3/2m and b=5n.
The following simplifies to (3/2m)^2 - (5n)^2.
I added the question below, whoever answers first gets 20 points !!! please answer fast im confused
Answer:
I'm not really good at these
Answer:
Well, since the x-axis is the age and the y-axis is the length, you just graph those points
please answer quickk! Full understandable answer
Answer:
Step-by-step explanation: 17 spins and 3 are blue so 3/17 is the probability written as a fraction in it's simplest form
Before you multiply or divide a fraction by a mixed number, you have to make sure they are both in the same___________?
Answer:
Step-by-step explanation:
form. Meaning you need make both fractions improper
y=2x+9 is NOT an equation of a proportional relationship. Why? (answer asap)
Answer:
Step-by-step explanation:
so im doing math and i rlly need help with this question
Answer:
42
Step-by-step explanation:
so add a 1 under the -7 like this
-7 z
------ = ------
1 -6
then times -6 and -7
and z and 1 so you get
z=42
mark brainliest if this helped pls!
During a certain period of time, a car can cover the distance of 120 miles, going at an average speed of 55 mph. What distance over the same period of time would cover a truck, going at an average speed of 44 mph
please answer
Answer: 96 miles
Step-by-step explanation: 120 divide by 55= 2.18. So you multiply 44 by 2.18
Find the total volume of the figure.
Answer:
The Volume is 2,200
Step-by-step explanation:
10+8.8= 18.8
13.7+25= 38.7
18.8+38.7= 57.5
This is the incorrect way
__________________________________________________
Correct way:
Volume= L×H×W
25 × 8.8 × 10 = 2,200
The total volume of the figure is 693 m³.
What is Volume?Volume of a three dimensional shape is the space occupied by the shape.
Given a composite figure consisting of a triangular pyramid and a triangular prism.
Total volume of the figure = Volume of pyramid + volume of prism
Volume of the pyramid = 1/3 × base area × height
Base area = 1/2 × √(13.7² - 8.8²) × 8.8
= 1/2 × 10.5 × 8.8
= 46.2 m²
Volume of the pyramid = 1/3 × 46.2 × (25 - 10)
= 231 m³
Volume of the prism = base area × height
= 46.2 × 10
= 462 m³
Total volume = 231 m³ + 462 m³ = 693 m³
Hence the total volume is 693 m³.
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The following table shows the number of animal crackers in each kid's lunch box. Find the median number of animal crackers.
Answer:
4
Step-by-step explanation:
2 2 3 5 7 7 (order from least to greatest)
3+5=8(find the most middle number,if there are two numbers you add both and then divide by 2)
8÷2
4
Hi there!! (✿◕‿◕)
⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
First, you have to put the numbers from least to greatest.
2, 2, 3, 5, 7, 7
Then, you have to find the middle number.
2, 2, 3, 5, 7, 7
3 and 5 and both in the middle so, you add them both and divide them by 2.
3+5 = 8
8/2 = 4
4 is the median.
Hope this helped!! ٩(◕‿◕。)۶
Question 15
2 pts
The daily caloric intake for a group of women follows a normal distribution with a mean of
1,750 calories and a standard deviation of 200 calories. What is the z-score for a woman
who had a daily intake of 2,100 calories?
2,091
-1.75
1.75
1.09
Question 16
2 pts
What is it called when you get a positive test result for a disease that you do not have?
False Negative
Margin of Error
Accuracy
True Positive
False Positive
Answer:
1. Z = 1.75
2. False Positive
Step-by-step explanation:
1. mean = 1750 calories
standard deviation, sd = 200 calories
value of interest, x = 2,100
z-score is computed as follows:
Z = (x - mean)/sd
Z = (2100 - 1750)/200
Z = 1.75
2. A false positive happens, when a negative case is detected as a positive case
Due soon, pls help, will give brainly and points, useless get reported.
Answer:
A. 100.48
Step-by-step explanation:
2(pi) 16
c= 2pi(radius)
What is the volume of this triangular prism?
PLEASE HELP ME
Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work.
1÷4 x³ = –27÷4
1. First, divide both sides of the equation by 4.
1÷4 x³/4 = –27/4/4
2. Next, on the left side of the equation, use inverse operations to get rid of the division. This will give us x³ = –27.
3. Then, to solve for x, take the cube root of both sides of the equation.
Cube root of x³ = cube root of –27
4. To check your answer, plug in -3 for x in the original equation and solve.
1÷4 x³ = –27/4
1÷4 (-3)³ = –27/4
1÷4 (-27) = –27/4
1 = 1
Since 1 = 1, the answer checks out.
Therefore, the solution to the equation is x = -3.
Answer:
-3, 3+3i\(\sqrt{3}\)/2, 3-3i\(\sqrt{3}\)/2
Which two expressions are equivalent?
A.
(d + 9) • 3 and d + (9 • 3)
B.
(d − 8) • 2 and (8 − d) • 2
C.
3(4d − 2) and 7d − 5
D.
5(3d + 6) and 15d + 30
Step-by-step explanation:
We are doing to replace d with 14
(14 + 9 equals 23) times 3 (equals 69) and 14 plus (9 times 3 equals 27) equals 41
(14 -8 equals 6) times 2 equals 12 and 8 -14 equals 6 (times 2) equals -12
3(4 times 14 equals 56-2 equals 54) times 3 equals 162 and 7 times 14 equals 98 -5 equals 93
5(3 times 14 equals 42 plus 6 equals 48) times 5 equals 240 and 15 times d equals 210 plus 30 equals 240
Is the question "How do students in 6th grade get to school" a statistical question?
Answer:
Step-by-step explanation:
bus-car rider-walking
I think not even the smartest person in the world could answer this!!! Try answering it and we will see if you got the right answer. Also, EXPLAIN how you found your answer!
Answer:
pagtoon og imo dots
Step-by-step explanation:
pagtoon og imo dots
helpppppppp its for a grade
Answer:
36? Pretty sure
Step-by-step explanation:
x-2y=3, x^2-2y=3, x^2-2xy+4y^2=11, find the value of x^2y-2xy^2
This is a system of three equations with two unknowns, x and y. To solve it, we can use the method of elimination. First, we can eliminate y by subtracting the first equation from the second equation:
x^2-2y=3 - (x-2y=3) => x^2-x=0
Then we can factor the resulting equation and find the values of x:
x^2-x=0 => x(x-1)=0 => x=0 or x=1
Next, we can substitute these values of x into any of the original equations and find the corresponding values of y. For example, using the first equation:
x-2y=3 => 0-2y=3 => y=-3/2 when x=0 x-2y=3 => 1-2y=3 => y=-1 when x=1
Finally, we can substitute these values of x and y into the expression x2y-2xy2 and evaluate it:
x2y-2xy2 => 02(-3/2)-2(0)(-3/2)2 => 0 when x=0 and y=-3/2 x2y-2xy2 => 12(-1)-2(1)(-1)2 => -3 when x=1 and y=-1
Therefore, the value of x2y-2xy2 can be either 0 or -3 depending on the values of x and y.
draw a number line to represent the inequality y less than 3
Answer:
You mean like this?
Step-by-step explanation:
The blue line
can you please list down the answers?
Answer:
B; C
Step-by-step explanation:
V = (4/3)*pi*(r^3)
pi = 3.14, r = 4.5
so V = (4/3)(3.14)(4.5^3) which is choice B
--
use calculator to solve: V = 381.51 which is choice C
A fruit juice recipe calls for 2 parts orange juice and 8 parts pineapple juice. Which proportion can be used to find the amount of orange juice, j, that is needed to add to 18 L of pineapple juice?
2 over 8 equals j over 18
8 over 2 equals j over 18
8 over j equals 2 over 18
16 over 18 equals j over 100
The correct proportion to use to find the amount of orange juice, j, needed to add to 18 L of pineapple juice is:
2/8 = j/18
This proportion relates the ratio of orange juice to pineapple juice in the recipe (2:8) to the amount of orange juice needed to add to 18 L of pineapple juice. By cross-multiplying, we can solve for j as follows:
2/8 = j/18
218 = 8j
36 = 8*j
j = 36/8
j = 4.5
Therefore, you would need to add 4.5 L of orange juice to 18 L of pineapple juice to create the fruit juice recipe that calls for a ratio of 2 parts orange juice to 8 parts pineapple juice.
Answer:
2 over 8 equals j over 18Step-by-step explanation
2 over 8 equals j over 18
This proportion represents the ratio of orange juice to pineapple juice in the recipe. By setting up the proportion, we can solve for the value of 'j,' which represents the amount of orange juice needed.
So, the correct proportion is:
2 over 8 equals j over 18
help me pls thank you
Answer:
\(216^3\)
Step-by-step explanation:
l*w*h
\(6*3*12=216^3\)
Answer: 216
Step-by-step explanation: LxWxH = 12 x 3 = 36 x 6 = 216
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cassie is placing stickers on a page that is 12 inches long and 8 inches wide the sticker are 3 inches long and 2 inches wide
Answer:
To find the greatest number of stickers Cassie can place on a page that is 11 inches long and 8 inches wide without them overlapping, we need to use the same approach as before.
Firstly, we need to calculate the maximum number of stickers that can fit along the length of the page, which is now 11 inches. Since each sticker is 3 inches long, we can fit 3 stickers along the length (11 ÷ 3 = 3 with a remainder of 2).
Next, we can calculate the maximum number of stickers that can fit along the width of the page, which is still 8 inches. Since each sticker is 2 inches wide, we can fit 4 stickers along the width (8 ÷ 2 = 4).
To ensure that the stickers do not overlap, we can only use the full row of 3 stickers from the previous calculation. Therefore, we can place 3 stickers along the length and 4 stickers along the width, giving us a maximum of 12 stickers that Cassie can place on the page without them overlapping.
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
First, find out how much stickers you can put on the long side:
12/3 = 4
Next, find out how much stickers you can put on the wide side:
8/2 = 4
Lastly, calculate them together:
4x4=16
So the answer is 16.
This is the graph of f(x) = x+A/x+B. The grid lines in the graph are one unit apart. What is the value of A/B
The value of A/B is given as follows:
A/B = -2.
What are the asymptotes of a function f(x)?The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator.The horizontal asymptote is the value of f(x) as x goes to infinity, as long as this value is different of infinity.From the graph, the function has a vertical asymptote at x = 1, hence the value of B is given as follows:
B = -1 -> as x + B = 0 -> x = -B = -1.
When x = 0, y = -2, hence the value of A is obtained as follows:
A/-1 = -2
A = 2.
Then the division is given as follows:
A/B = 2/-1 = -2.
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Shelly is asked to put parentheses in the equation
14−8−5+6×2=23 so that it is true.
Choose the correct expression.
A. 14−8−(5+6)×2=23
B. 14−(8−5)+6×2=23
C. 14−8)−(5+6)×2=23
D. 14−(8−5+6)×2=23
Answer:
C)(14-8)-(5+6)×2=23
using bodmas
What is the median of this data set?
Answer:
58
Step-by-step explanation:
It is the middle point/dot
in the box with the line
A family wants to buy a new computer. The regular price is $849. The store is offering a 20% discount, and a sales tax of 6% is added after the discount. What is the total cost of the computer?
A. $169.80
B. $679.20
C. $719.95
D. $789.75
Answer:
C
Step-by-step explanation:
because
Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111
Here are the pairs matched with their products:
- (-5)(4.2) matches with -21
- (-7)(-3) matches with 21
- (2.5)(-9) matches with -22.5
Pairs (4) and (5) do not have corresponding products in the given options.
Two data sets and their mean absolute deviations are shown.
Study the plots of each data set, and then use the drop-down menus to answer the questions below.
Answer:
Step-by-step explanation:
Use internet to read a graph
Please help me this is due today
a) The predicted heating cost for a month with temperature of 25 ºF is given as follows: $65.70.
b) The predicted heating cost for a month with temperature of 0 ºF is given as follows: $96.20
c) For an increase of one degree Fahrenheit, the predicted decrease in the cost is of $1.22.
How to define a linear function?The slope-intercept representation of a linear function is given by the equation presented as follows:
y = mx + b
The coefficients of the function and their meaning are described as follows:
m is the slope of the function, representing the change in the output variable y when the input variable x is increased by one.b is the y-intercept of the function, which is the initial value of the function, i.e., the numeric value of the function when the input variable x assumes a value of 0. On a graph, it is the value of y when the graph of the function crosses the y-axis.The slope and the intercept for the function in this problem are given as follows:
Slope of -1.22, meaning that for an increase of one degree Fahrenheit, the predicted decrease in the cost is of $1.22.Intercept of 96.2, meaning that the predicted heating cost for a month with temperature of 0 ºF is of $96.20.Hence, the predicted cost for a month with temperature of 25ºF is given as follows:
y = -1.22(25) + 96.20 = $65.70.
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