Which is the solution set of the inequality 15y-9<36?
9
Oy>
9
OY 5
OV<3
Oy>3
Answer:
15y>36+9
15y>45
y>45^15
y>3
ryan rides his bicycle 5 miles in 3/4 hour. how many miles can he ride at the same rate in 1 hour? (in fractions)
Answer:
20/3
Step-by-step explanation:
If Ryan rides his bike 5 miles in 3/4 of an hour, then he rides 5/3 miles in 1/4 of a hour (divide both by 3). To get to a full hour from 1/4, you need to multiply it by 4. You must do the same for 5/3. 5/3*4 is equal to 20/3.
A box contains 3 black pens, 7 blue pens and 5 red pens. Without replacing the first pen,
what is the probability of pulling a red or blue pen?
Answer:12/15
Step-by-step explanation: first you add 7+5=12
then add 12+3=15
In a study of speed dating, male subjects were asked to rate the attractiveness of their female dates, and a sample of the results is listed below (1 = not attractive; 10 = extremely attractive). Construct a confidence interval using a 95% confidence level. What do the results tell about the mean attractiveness ratings of the population of all adult females? 5, 8, 2, 8, 7, 6, 6, 8, 9, 9, 6, 9 What is the confidence interval for the population mean μ? <μ
Answer:
Confidence Interval = ( 5.6 < μ < 8.2 )
The interval shows that the mean attractiveness is Above average on a scale of 1 to 10
Step-by-step explanation:
Data Given : 5, 8, 2, 8, 7, 6, 6, 8, 9, 9, 6, 9
a) construct a confidence interval at a 95% confidence level
confidence interval = x ± tcritical ( s / √ n ) ------ ( 1 )
n = 12
μ (mean) = ( 5+8+2+8+7+6+6+8+9+9+6+9 ) / 12 ≈ 6.92
std ( s ) = √ 1/11 *∑( xi- X )^2
= √ 1/11 * ( 5 - 6.92)^2 + ( 8 - 6.92)^2 + ( 2 - 6.92)^2 + ( 8 - 6.92)^2 + ( 7-6.92)^2 + ( 6 - 6.92)^2 + (6 - 6.92 )^2 + ( 8 - 6.92 )^2 + ( 9 - 6.92)^2 + ( 9 - 6.92)^2 + ( 6 - 6.92 )^2 + ( 9 - 6.92 )^2
= √ 1/11 * 46.92 = 2.07
tcritical at ∝ 0.05 , df = 11 = 2.20
Back to equation 1
6.92 ± 2.2 ( 2.07 / √ 12 )
( 6.92 ± 1.31 )
Confidence Interval = ( 5.6 < μ < 8.2 )
A rectangle with sides 14 cm and 6 cm has the same diagonal as a square.
What is the length of the side of the square.
Give your answer as a surd in its simplest form.
Answer:2* square root 58
Step-by-step explanation:
To find the diagonal follow these steps:
(14^2(the side) + 6^2(the other side))square rooted
(14^2 is 196 + 6^2 is 36)
so its square root of 232 or
2*square root of 58.
Write an equation that can be used to find the nth term of the sequence, an.
70, 103, 136, 169, 202, ...
Enter your answer by filling in the boxes.
an = __n + __
Answer:
+12 +1
Step-by-step explanation:
Answer:
an = 33n + 37
Step-by-step explanation:
I took the test.
Rectangle DEFG was dilated
to form D'E'F'G. Point G(-2,0)
was dilated to G'(-8,0).
Answer:
A. (-2,1)
Step-by-step explanation:
I'm a brainy plus member that shows it doesn't expire until 3/2022, but when I take a picture and click on answer it won't give the answer to me. It is blurry. Please let me know what is wrong.
Answer:
Can I see it actually?
Step-by-step explanation:
10.
25
xº
40
Solve for x. Round to the nearest tenth
Answer:
51.32
Step-by-step explanation:
∠B = arcsin(b·sin(A)a)
= 0.67513 rad = 38.682° = 38°40'56"
∠C = 180° - A - B = 0.89566 rad = 51.318° = 51°19'4"
c = a·sin(C)sin(A) = 31.22499
Select all statement that are true for the figure bellow plz
Answer:
oh I can't really see the image
Which of the following fractions is nearest to 1/2
1) 3/5 2)12/25 3)27/50
You must show all your working.
Answer:
12/25
Step-by-step explanation:
1/2 = 25/50
1) 3/5 = 30/50
2) 12/25 = 24/50 (closest to 25/50)
3) 27/50
If 2x⁴ + 2y⁴ + 2z⁴ = 144, what is the mean of x⁴, y⁴ and z⁴
Answer: 24
Step-by-step explanation:
Given
[tex]2x^4+2y^4+2z^4=144[/tex]
dividing whole equation by 2, we get
[tex]\Rightarrow x^4+y^4+z^4=72[/tex]
Mean is given by the sum of the value of entities divided by the total no of entities
[tex]\Rightarrow \text{Mean}=\dfrac{x^4+y^4+z^4}{3}\\\\\Rightarrow \text{Mean}=\dfrac{72}{3}\\\\\Rightarrow \text{Mean}=24[/tex]
Six years ago Matt was four times as old as Brown, and in 3 years the sum of their
ages will be 43 years. Find their present ages.
Answer:
Matt=26
Brown=11
Step-by-step explanation:
Just trust me!!!
The present age of Matt given the information in the question is 26.
The present age of Brown given the information in the question is 8.
What are the linear equations that represent the question?4y - 6 = x equation 1
x + y + 6 = 43 equation 2
Where:
x = Matt's agey = Brown's ageWhat is Brown's age?Subsistute for x in equation 2
4y - 6 + y + 3 = 43
Combine similar terms
5y = 40
y = 8
What is Matt's age?
Subsitute for y in equation 1
4(8) - 6 = x
32 - 6 = 26
To learn more about simultaneous equations, please check: https://brainly.com/question/25875552
pls help giving brainless. no link!!!!
Answer:
5
Step-by-step explanation:
Count it up 1 on the bottom 4 on the sides
Give me Brainllest
Answer:
5
Step-by-step explanation:
It looks confusing, but if you really pay attention it is a triangular prism
You moved 7 units left, 8 units up, and ended at point W
Where did you begin?
OA) (1.8)
OB) (9.1)
OC) (81)
OD) (9.8)
Please help me I’m tired
Answer:
C. (8,1)
Step-by-step explanation:
Solve the equation for x, where x is restricted to the given interval.
y=8cot4x, for x in (0, pi/4)
Carl paid $40 for 12.5 gallons of gas.After calculating,he said that the cost per gallon was about 31 cents per gallon.Is there anything wrong with Carl's thinking?.
Answer:
Well yes, because it should have cost $3.2 PER gallon
Step-by-step explanation:
Divide 40 by 12.5 to find out how much of a per gallon costs! Hope it helps.
twenty subtract from 28
Answer:
8
Step-by-step explanation:
Answer:
-8
Step-by-step explanation:
20-28= -8
If cos 67° is close to 25, which is closest to the length of NO?
Options
2 centimeters
20 centimeters
40 centimeters
60 centimeters
I NEED HELP PLEASE ASAP!
Answer:
Step-by-step explanation:
Which of the following is NOT an example of a right angle?
Ο Α.The corner of a door
O B.The corner of a book
C.The point of a pencil
D.The corner of a piece of notebook paper
Answer:
The point of a pencil
Step-by-step explanation:
all other three mesure 90 the point of pencil is not square shape in order for it to be right angle its gotta be square shape hope this helps! may i be marked brainliest?
Mr okeke has 11 $5 dollar bills he wants to give three children even a
mount
Answer:
it would be a fraction 18.333333333
Step-by-step explanation:
Ten coins weigh 25 grams. How many grams does 1 coin weigh?
Answer:
2.5 Grams
Step-by-step explanation:
You divide 25 by 10 giving you 2.5 Grams.
In which interval is the median age?
Choose 1 answer:
Answer:
Its C i believe correct me if im wrong
Answer:
its 5-10
Step-by-step explanation:
did the quiz
The number 4,250 is ten times smaller than what number?
Answer:
42,500
Step-by-step explanation:
The number which is ten times greater than 4250 is 42, 500.
What is algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
The number 4,250 is ten times smaller than what number.
let the number be x.
So, x/10 = 4250
Now, make x as subject formula
x = 4250(10)
x= 42500
Learn more about Algebra here:
https://brainly.com/question/24875240
#SPJ2
help me please I will give brainliest!
Answer:
A. y = 3x + 3
Step-by-step explanation:
The slope is 3 and the y-intercept is 3. Therefore, answer A is correct
1. Find the slope of the graph. Slope:
Answer:
I think the answer is 5 down and over to the left 3.
Step-by-step explanation:
I just counted from the point on the (4,3) and counted down until it was line up with the other point. Next, I counted from there to the other point.
y varies directly as x. When x = 9, y = 27
Find y when x = 27
Answer:
y/x, 27/9 = 3, 3 = y/27, y = 81.
Step-by-step explanation:
A museum has an aquarium in the shape of a right rectangular prism that is 22.9 meters long. 7.5 meters wide, and 4.6 meters high. What is the volume, rounded to the nearest cubic meter, of the aquarium? EXPLAIN.
A. 280
B. 623
C. 790
D. 1288
( If you put an improper answer I will report :) )
For whole numbers between 1 and 1001, inclusive, let m be the sum of odd numbers and n be the sum of even numbers. What is the value of m−n?
Answer:
m - n = 501
Step-by-step explanation:
Remark
The first thing you have to do is find the number of odd and even numbers. This is where you have to be careful because there is a danger of being out by one.
equation
l = a + (n - 1)*d
Solution even
l = 1000
a = 2
d = 2
1000 = 2 + (n - 1)*2
998/2 = (n - 1) * 2 / 2
499 = n - 1
n = 500
Solution odd
l = 1001
a = 1
d = 2
1001 = 1 + (n - 1)*2
1000 = (n - 1)*2
1000/2 = (n - 1)2/2
500 = n - 1
501 = n
Sum Even of even numbers from 1 to 1001
Givens
a = 2
n = 500
l = 1000
Equation
Sum = (a + l ) * n / 2
Solution
Sum = (2 + 1000)*500/2
Sum = 1002 * 250
Sum = 250500
Sum of Odd numbers from 1 to 1001
a = 1
l = 1001
n = 501
Equation
sum = (a + l)*n/2
sum = (1 + 1001) * 501
sum = (1002)*501 / 2
Sum = 251001
Answer
m - n = 251001 - 250500 = 501