Answer:
−7/18
Step-by-step explanation:
Subtract 5/9 from both sides of the equation
A university president believes that over the past few years, the mean age of students attending his university has decreased. To test this hypothesis, a study is conducted in which the age of 150 students who have been randomly sampled from the student body is measured. The mean age is 21.5 years. A complete census taken at the university a few years prior to the study showed a mean age of 23.5 years, with a standard deviation of 8.5. Test using a 1% level of significance.
What is the null hypothesis?
Answer:
quisiera ayudarte pero no hablo inglés:(
List all the factors of 30:
Answer:
1, 2, 3, 5, 6, 10, 15, and 30
Step-by-step explanation:
Can you someone me, please!!! :0
44:56
im probably wrong im so sorry
24 0 Yago tiene 25 años menos que su padre. Dentro de
10 años, la edad del padre será el doble que la de Yago.
¿Qué edad tiene cada uno?
Answer:
u
Step-by-step explanation:
Y=4x-1 fill in table
Answer:
please provide table
there is no table in question
Help ASAP! ill mark brainliest if correct
Answer:
fourth option
Step-by-step explanation:
The mean is calculated as
mean = [tex]\frac{sum}{count}[/tex]
= [tex]\frac{15+16+21+23+25+25+25+39}{8}[/tex]
= [tex]\frac{189}{8}[/tex]
= 23.6 ( to 1 dec. place )
The median is the middle value of the data set. If there is no exact middle then it is the average of the values either side of the middle.
15 16 21 23 25 25 25 39
↑ middle
median = [tex]\frac{23+25}{2}[/tex] = [tex]\frac{48}{2}[/tex] = 24
The mode is the value that occurs most often, that is 25
Thus
mean = 23.6 , median = 24 , mode = 25
What’s is the answer to 10a+4a-10a
is my answer correct
1+1=11
Answer: no
Step-by-step explanation:
The maxwell family went out to dinner.The price of the meal was $64.20. They left a 15%tip,what is the total cost of the meal including tip?
Answer: The sales tax on the meal is 6%, and the family leaves a 20% tip. What is the total cost of the meal? Please answer with whole number or decimal. Linda C. answered • 01/05/15. We can do this problem a few different ways.
Step-by-step explanation:
PLEASE HELP GIVING BRAINLIEST!!!
If ABCD is a parallelogram, m
Equation =
X =
Answer:
opposite sides of parallelogram are parellel.
so, angle A and angle D are co interior angle.
(3x+4)°+x°=180°
4x+4=180°
4x=180°- 4
4x=176°
x=176°/4
x = 44°
(3x+4)
=3×44+4
=136°
List and explain the steps to extinguish a Class A, B, C and D fire.
Answer:PASS
Step-by-step explanation:
Not sure if this is what you’re looking for so I’ll post it here as not to waste an answer to your question. Use PASS. Pull the pin on the fire extinguisher. Aim the hose of the extinguisher at the base of the fire. Spray the fire extinguisher by squeezing the handle. Sweep- use a sweeping motion back and forth to put out the fire.
I need help on this and the first person who answer correctly gets a BRANLIST
Answer:
It would be D
Step-by-step explanation:
All the coordinates are divided by half.
What is the common difference (d) of the A.P. 7, 1, – 5, – 11, ... ?
Answer:
d = -6
Step-by-step explanation:
t1 = 7, t2 = 1, t3 = -5, t4 = -11
t2 - t1 = 1 - 7 = -6
t3 - t2 = -5 - 1 = -6
t4 - t3 = - 11 - (- 5) = -11 + 5 = -6
Therefore, the common difference is constant( I. e -6). Therefore the common difference is -6.
What is 64x12 – 1,000 written as a difference of cubes?
Which is more, 3,000 grams or 3 kilograms?
Answer:
Neither
Step-by-step explanation:
They are the same amount
can someone help me for question 3?
Pls help I will give 5/5 and brainliest
Answer:
the 2nd one
Step-by-step explanation:
I took the Quiz
the square root of 88
Answer:
2√22 or approximately 9.38083.
Step-by-step explanation:
Write the words for:
(3/4 - 1/5) x 4:
Answer:
three-forth minus one-fifth times four
Step-by-step explanation:
Answer:
Step-by-step explanation:
Third -fourth subtracted from one-fifth multiplied by four
Express as a simple fraction in lowest terms
OK
Answer:
1/3
Step-by-step explanation:
First find the LCD or least common denominator. The least common denominator is the number that both of the denominators are divisible by.
In this case, 2 and 3 are both divisible by 6.
Convert both fractions into a fraction with a denominator of 6.
1/2 = 3/6 (multiply numerator and denominator by 3)
2/3 = 4/6 (multiply numerator and denominator by 2)
Now you can multiply as they have the same denominator.
3/6 × 4/6 = 12/36
Simplify.
12/36 = 1/3 (numerator and denominator are divisible by 12)
Hope that helps.
The advertised price of a cell phone is $149 after a $50 mail-in rebate. Write and solve an equation to find the price of the cell phone before the rebate was applied.
Answer:
$149 + $50 = $199
Step-by-step explanation:
Can someone help me PLZ! I keep posting the same question and no ones helping me :((((((((((((
Steve started with $250 and spent $20 per week. Chelsea started with nothing but saved $30 per week. Use x for time and y for savings.
Write an equation to represent Steve's situation.
Answer:
[tex]250 - 20x=y[/tex]
Step-by-step explanation:
As per the given problem, Steve starts with $250, and spent $20 a week, the problem mentions nothing about Steve's savings, therefore, one can assume that they didn't save anything. As the problem requests, parameter ([tex]x[/tex]) will be used for the time, and ([tex]y[/tex]) for the savings.
Steve's saving would be equal to his initial value, minus his expense, in essence;
[tex]250 - 20x=y[/tex]
The initial value, minus the amount spend per week multiplied by the week number will equal the savings left.
Answer:
y=250-(20x)
Step-by-step explanation:
What is the answer 3x-5=2x-1
Answer:
x=4
Step-by-step explanation:
Answer:
x = 4
Step-by-step explanation:
3x - 5 = 2x -1
Add 5 to both sides
3x - 5 + 5 = 2x - 1 + 5
3x = 2x + 4
Subtract 2x form both Sides
3x - 2x = 2x - 2x + 4
x = 4
I really need help with this thing to please, if yall could answer like right now I would really appreciate it a lot.
Maya is interning at a law firm over the summer and is paid by the hour. If her hourly wage is $52, which equation represents the proportional relationship between the wages she earns (w) and the number of hours (h)?
Answer:
52,000 w
100h
Step-by-step explanation:
Answer: w=52h
Step-by-step explanation:
tried and worked
Question 21 of 45 If x + 2/7x = 9, then x = ?
What is GCF of 5p^4+4p^2?
Answer:
p^2
Step-by-step explanation:
50 points! Tell whether the orthocenter is inside, on, or outside the triangle. Then find the coordinates of the orthocenter.
Q(-1, 5), R(4, 3), S(-1, -2)
Answer:
(1,3) is inside the triangleStep-by-step explanation:
Orthocenter is the intersection of altitudes.
We'll calculate the slopes of the two sides and their altitudes ad find the intersection.
Side QRm = (3 - 5)/(4 - (-1)) = -2/5Perpendicular slope:
-1/m = 5/2Perpendicular line passes through S(-1, -2):
y - (-2) = 5/2(x - (-1)) ⇒ y = 5/2x + 1/2Side RSm = (-2 - 3)/(-1 -4) = -5/-5 = 1Perpendicular slope:
-1/m = -1/1 = -1Perpendicular line passes through Q(-1, 5):
y - 5 = -(x - (-1)) ⇒ y = -x + 4The intersection of the two lines is the orthocenter.
Solve the system of equations to get the coordinates of the orthocenter:
5/2x + 1/2 = x + 45x + 1 = -2x + 87x = 7x = 1Find y-coordinate:
y = -1 + 4 = 3The orthocenter is (1, 3)
If we plot the points, we'll see it is inside the triangle
HELP PLEASE!! not sure about this one!!
Answer:
y=4x
Step-by-step explanation:
Which of the sets of ordered pairs represents a function?
A = {(-5,5), (-2, 2), (2,-2), (5, -5)}
B = {(4, 2), (3, -2), (9, 4), (11, -3)}