Answer:
(426 ; 468)
Step-by-step explanation:
Confidence interval :
Mean score ± margin of error
Margin of Error = 21
Mean SAT score = 447
Hence,
447 ± 21
Lower boundary = 447 - 21 = 426
Upper boundary = 447 + 21 = 468
(426 ; 468)
Please help me I don't know how to do this.
Answer:
3x-1
step by step
2+3-5= -1
7x-4x=3x
3x-1
Given y varies inversely as x, and y = 5 when x = 9. Write the inverse function
Answer:
y = 45/x
Step-by-step explanation:
Given y varies inversely as x, then;
y = k/x
If y = 5 when x = 9
5 = k/9
k = 5*9
k = 45
Substitute into the formula above;
y = k/x
y = 45/x
Hence the required inverse function is y = 45/x
PLSSS HELP ASAP WILL GIVE BRAINLIEST
Solve by completing the square: 5x² + 20x + 32 = 0
Answer:
5x2 + 20x + 32 = 0 - 16977324
Step-by-step explanation:
solve for the value of n
Answer:
N = 27
Step-by-step explanation:
The total value would be 90 , as it is a right triangle . Starting from the aforementioned number and subtracting it by the given values above shall reward you with the correct answer .
90 - ( 6 + 3 ) = 81
81 / 3 = 27
ALSO GIVE ME BRAINLIEST PLEASE :)
Answer:
i think 27??
Step-by-step explanation:
n+6 +90+2!+3=180
I'll give brainliest
Answer:
7 oof
Step-by-step explanation:
PLEASE HELP WITH THIS
Answer:
a.2b.area of one triangular faces =9m²
2×9m²18m²Examples of consecutive even numbers would be 20, 22, 24, etc........What is the larger of the two, consecutive (positive) even numbers that have a product of 1848? Your answer will be a whole number; do not use any letters or special characters.
PLEASE HELP ME, AND THANK YOU!
What is the volume of a sphere with a diameter of 9.3 m, rounded to the nearest
tenth of a cubic meter?
The volume of a sphere with a diameter of 9.3 is 521.
what is Volume of sphere?The amount of space occupied by a three-dimensional figure as measured in cubic units.
Volume of sphere is = 4/3*π*r³
d=9.3, radius= 9.3/2
Volume of sphere = 4/3*22/7*4.65*4.65*4.65*4.65
= 421.16 m³
= 521
Learn more about volume of cylinder here:
brainly.com/question/16134180
#SPJ2
Which expression is equivalent?
Answer:
Option one is correct
Step-by-step explanation:
Hope it's helpful... :)
can someone please make a word problem for this I have no idea what to do
Answer: The ans is always c
Step-by-step explanation:
30 POINTS!!
The height of a ball dropped from a 160 foot building after a seconds is represented by h(t) = 160 - 161².
How high will the ball be after 3 seconds?
Answer:
The height of the ball after 3 secs of dropping is 16 feet. Function h(t)=160-16t^2
have a good day :)
The function f(x) = 1.25x^2 models the packaging costs, in cents, for a box shaped like a rectangular prism. The side lengths are 2x in., 2x in., and 0.5x in. What are reasonable domain and range values for this function, if the longest side length of the box can be no greater than 20 in.? Write the answers in interval notation.
Answer:
I’m not sure but I need this too!!
Step-by-step explanation:
what is the answer to X-10=12
Answer:
x=22
Step-by-step explanation:
x-10=12
add 10 to each side..
x-10=12
+10 +10
12+10=22
x=22
im bad at explaining but hope it helps <3
Giving brainlist to whoever answers
Answer:
14
Step-by-step explanation:
The trapezoids are similar, so you need to find which sides allign with each other. It can be seen that among the paralel sides of the trapezoid, the longer ones will be similar by the factor of 2. So, 2*7=14
Answer:
14 feet
Step-by-step explanation:
Hannah just put a 36-foot long
fence around her rectangular
garden. What is the length of the
garden if it is 12 feet wide?
Answer:
perimeter=sum of all sides
p=2(L+W)
36=2(L+12)
36-24=2L
12=2L
L=6
A rectangle is a 2-D shape with 4 angles. The length of the garden if it is 12 feet wide is 3 feet
How to calculate the perimeter of a rectangle?A rectangle is a 2-D shape with 4 angles. The formula for calculating the perimeter of a rectangle is expressed as:
P = 2(length + width)
Given
Perimeter = 30 feet
width = 12 ft
Substitute
30 = 2(l + 12)
15 = l + 12
l = 3 feet
Hence the length of thegarden if it is 12 feet wide is 3 feet
Learn more on perimeter of rectangle here: https://brainly.com/question/19819849
What is the angle and the answer pls this is a quiz grade
Answer:
b is equal to 132
because of the transversal rule, b and 132 are corresponding angles, which means that they are equal to the same measure
hope this helps :)))
ur lucky at least ur math teacher gives you fun assignments to do to solve a murder mystery
my teacher has us doing 4 page review guides for finals
If AB = 15, what is the length of DE?
12
14
16
18
Answer:
16
Step-by-step explanation:
Answer:16
Step-by-step explanation:
I need help finding the missing value to this equation
-4x - y = 24
(__, 8)
Answer:
x=-8
Step-by-step explanation:
-4x-(8)=24
+8=+8
-4/-4x=32/-4
x=-8
What is the longest line segment that can be drawn in a right rectangular prism that is 12 cm long, 11 cm wide, and 8 cm tall?
Answer:
The answer is 18.1
Help please. I need an answer quick please.
“Select all the graphs that show a proportional relationship”
Answer:
Step-by-step explanation:
The graphs of all proportional relationships go through the origin. The first graph satisfies this criterion; the second does not.
Math HW Mr Thompson May 24
Answers:
B) 0A) 27D) 50See the diagram below.C) 143================================================
Explanations:
Refer to the top left corner of the table. This is the intersection of the "less than 1 year" column and "antlers" row.Add up everything in the "1 year or older" column to get 12+15 = 27.There are 0+12 = 12 deer with antlers, and 23+15 = 38 deer with no antlers. I'm adding across the rows. This in turn means there are 12+38 = 50 deer total. You could also add across the columns, meaning we have 0+23 = 23 deer less than 1 years old, and 12+15 = 27 deer that are 1 year or older. So we have 23+27 = 50 deer total. The explanation is lengthy. There's not much room here so I'll explain in the section below. Refer to the table below as well.Dividing everything by 143 will help us get the values into percentages. For instance, 62/143 = 0.4336 = 43.36% approximately represents the number of people who wear a belt and also wear a watch (top left corner).-----------
Explanation for problem 4
We have 68 people who split the check out of 122 total. That leaves 122-68 = 54 people who don't split the check. These two values are the row totals for rows 1 and 2 in that order. So you'll have 68 at the end of row 1, and 54 at the end of row 2. Refer to the diagram below.
We have 56 people who prefer to skip dessert, meaning 122-56 = 66 people who order desert. We'll have 66 followed by 56 along the first two items in the bottom row. The grand total 122 is in the bottom right corner. The 122 is both in the total row and total column.
Then we're told that 50 people order desert and split the check. We had 68 people split the check, leaving 68-50 = 18 people who split the check, but didn't get dessert. For the first row, we have the values 50, 18, and 68. Note that 50+18 = 68.
In the second row, we must have the values 16, 38, and 54 in that order. The blank spaces are filled in using the same ideas as I've discussed in previous paragraphs.
The terms in gray boxes represent the totals, which would be left out when forming the table in your final answer. Meaning you'll have a 2x2 table instead of a 3x3 table.
What is the value of the expression (9 1/3)^3?
Answer:
rounded to the nearest hundredth the value is 813.04
Step-by-step explanation:
What is the measure of angle x?
Answer:
c
Step-by-step explanation:
90+62= 152
180-152= 28
calculate the area of the shaded region. someone please help!
Answer:
[tex]130cm^{2}[/tex]
Step-by-step explanation:
1) Calculate the entire rectangle and subtract the right triangle area
15 x 10 = 150 Entire rectangle area
(5 x 8) ÷ 2 = 20 Triangle area
150 - 20 = 130 Area of shaded region
In this table, Davis recorded how far he could throw balls of different weights.
He modeled the data with a linear best-fit function. He can throw a certain ball 30 feet. Approximately how many pounds would this ball weigh?
a. 7.5 pounds
b. 8.1 pounds
c. 8.6 pounds
d. 9.1 pounds
Answer:
Option C
Step-by-step explanation:
By using linear best fit calculator for the given data,
Equation of the line of best fit will be,
y = -5.2514x + 74.94413
Here, x = Weight of the ball
y = Distance thrown by Davis
Now substitute y = 30 feet to calculate the weight (x) of the ball.
30 = -5.2514x + 74.94413
5.2514x = 74.94413 - 30
5.2514x = 44.94413
x = 8.5585
x ≈ 8.6 pounds
Therefore, David can throw a ball 30 feet weighing 8.6 pounds.
Option C will be the answer.
Help plsss hehshshisieieirirj for brainly pls
Answer:
4 yards
Step-by-step explanation:
11 1/2 feet is equal to 3.833333 and 4 yards is more than that.
Answer:
11 1/2 ft. < 4 yd
Step-by-step explanation:
I'm not sure if thats what your asking.
But 1 yard is 3 ft, so 4 yards is equal to 12 ft. Therfore 11 1/2 ft. < 4 yd.
Select the correct answer from each drop-down menu.
The director of a community playhouse developed the function (1) = 40t to model the total revenue from ticket sales when t tickets are sold.
In the directors function, the number of tickets sold is the (independent, dependent) variable, and the total revenue from ticket sales ( changes by constant rate, changes by a constant factor) for each ticket sold.
Answer:
dependent & changes by a constant rate
Step-by-step explanation:
dependent because it involves something that involves something else
2 + 7(8-5x) - 25 - 2x please help!!!
Answer:
-37x + 33
Step-by-step explanation:
To make a number pattern yuan used the rule add 5 with whole numbers as the startjng point. Which stament must be true about yuans list of numbers?☜︎
Answer:
All elements of the dataset will be whole numbers
Step-by-step explanation:
Given
[tex]Rule \to Add\ 5[/tex]
[tex]Start = n[/tex] ---- whole number
Required
A true statement about the list
If the starting point is n, then the list elements are as follows:
[tex]n , n + 5, n + 10, n + 15,....[/tex]
Also, since n is a whole number and 5 (the rule) which is added to the dataset is also a whole number;
Then the other elements of the dataset will be whole numbers
Alyssa is getting gas for her car. Her car's 15-gallon tank has 15 of a tank of gas left. If gas costs $2.699 per gallon, how much will she pay for gas, rounded to the nearest cent?
Answer: $32.39
Step-by-step explanation:
The car's tank has a capacity of 15 gallons and has only 1/5 of a tank left which means that the quantity left is:
= 1/5 * 15
= 3 gallons
If Ayssa is going to fill up the tank, the number of gallons needed is:
= 15 - 3
= 12 gallons
Gas is $2.699 per gallon so cost is:
= 12 * 2.699
= $32.39