Answer:
The value is [tex]z = -8.4[/tex]
Step-by-step explanation:
From the question we are told that
The sample size is n = 70
The mean is [tex]\mu = \$ 5971[/tex]
The standard deviation is [tex]\sigma = \$ 219[/tex]
The sample mean is [tex]\= x = \$ 5751[/tex]
Generally the number of standard deviations the sample mean is from the mean of the distribution is mathematically represented as
[tex]z = \frac{\= x - \mu }{ \frac{\sigma}{\sqrt{n} } }[/tex]
=> [tex]z = \frac{ 5751 -5971 }{ \frac{219 }{\sqrt{ 70 } } }[/tex]
=> [tex]z = \frac{ 5751 -5971 }{ \frac{219 }{\sqrt{ 70 } } }[/tex]
=> [tex]z = -8.4[/tex]
10 POINTS !!!! solve using elimination -2x - y = 5 3x -y = -20 ( , )
Answer:
(-5,5)
Step-by-step explanation: add the equations in order to solve first variable. put the value in the other equations to solve the remaining variables- math way
What is the slope and y intercept of this diagram
The Answer is 1/5 and 5
How many minuets would it take me to get 10,000 points if I get 60 points every 5 minuets?
Step-by-step explanation:
833.3 I believe and u welcome if I'm right
can somebody help me please ..
Answer: Red
Step-by-step explanation:
The y intercept is -2 so its either green or red
the slope is positive so its red
What is 63 divided by 36?
Answer:
1.75
Step-by-step explanation:
used a calculator
Answer:
63÷36=1.75
Step-by-step explanation:
itz easy
mark me as a brainlist
Graph the line.
y=-3x - 3
Step-by-step explanation:
:) <333333 .! :)))))))))
]
Snow day problem, please answer worth 10 points
17 = 5 k - 2
k=?
I'm really in a hurry to figure out what K is, and if anyone really wants to do it, please tell me how to do it. Thank you.
______________________________
1.) Swap sides so that all variable terms are on the left hand side:[tex]5k-2=17[/tex]- This is an optional step. I prefer the numbers to be on the left hand side, but it's not necessary.
Equation at the end of Step 1:
[tex]5k-2=17[/tex][tex]17=5k-2[/tex]2.) Add 2 to both sides:[tex]-2+2=[/tex] Cancels Out[tex]17+2=19[/tex]- When solving problems like this, to get k alone you have to do the opposite of what you see.
- In this case, we have a -2. So to get rid of -2 we do the opposite: +2 on each side.
Equation at the end of Step 2:
[tex]5k=19[/tex]3.) Divide both sides by 5:[tex]5k[/tex] ÷ [tex]5=k[/tex][tex]19[/tex] ÷ [tex]5=3.8[/tex]- When solving problems like this, to get k alone you have to do the opposite of what you see.
- In this case, we have 5 being multiplied by k. So to get rid of the 5 we do the opposite: Divide by 5 on each side.
______________________________
george ate 2/3 container
Answer:
Step-by-step explanation:
and threw up after yes
HELP PLEASE AND THANKYOU!!!l
WILL GIVE BRAIN IF YOU ANSWER CORRECT
Use properties to evaluate 7/5(1/4÷7/4)(-10)
O A. 5
O B. 2
O C. -2
O D. -5
Answer:
C
Step-by-step explanation:
First do what’s in the parentheses. Do copy flip flip
1/4 x 4/7 = 1/7
Then do multiplication 7/5 x 1/7 = 1/5
Then multiply 1/5 by -10 and you get -2
Answer:
C.) -2
Step-by-step explanation:
Have an amazing day luvs!!!!
xx
what is 110 is 350 what is the percent
Answer:
31.43
Step-by-step explanation:
Answer:
31.43%
Step-by-step explanation:
Someone help me out please
Caroline is correct because the equation y = (x-1)(x-5) is in factored form. If you solve the terms (x-1) and (x-5), you get the zeros (aka x-intercepts) of the graph.
Solve (set the terms equal to 0):
x-1 = 0 x = 1
x-5 = 0 x = 5
∴ the x-intercepts are (1,0) and (5,0).
The purple graph corresponds to the zeros in the equation, not the green graph. The green graph has negative x-intercepts, whereas the purple graph has positive x-intercepts like in the equation.
Which expression uses the associative property to make it easier to evaluate
(16- })?
OA. (16 )2
OB. ( 16)
Oc. 16(3)
OD. ( 16)
Answer:
Option B: (½•16)⅓
Step-by-step explanation:
The associative property states that we can add or multiply numbers in a group regardless of how those numbers are grouped. And that we will get the same answer.
For example;
x(y•z) = (x•y)z = (x•z)y
Now in our question, we want o evaluate; ½(16•⅓)
Using the associative property, the best expression will be: (½•16)⅓
It's the best expression because the terms in the bracket are easy to multiply out without remainder.
Thus, option B is correct
What is the missing number that makes the fractions equivalent?
1 4/7=?/42
Answer:
84
Step-by-step explanation:
You need to figure out 7 times what gets you 42
6 x 7 = 42
then you do the same for 14
14 x 6 = 84
sorry if this wasn't a good explanation
PLEASE HURRY!!
(a) Billy bought seven cat toys. Each cat toy costs the same amount. He spent a total of $22.75
(a) Write an equation that represents the situation. Use c to represent the cost of each cat toy.
(b) Solve for c and justify your solution by checking your answer.
Multiple the number of toys bought by c to equal the total spent:
A) 7c = $22.75
B) divide the total spent by the quantity bought:
C = 22.75/7
C = 3.25
Each toy cost $3.75
WILL GIVE BRAINLIEST!
D)
Table D is the only table of the four that represents a graph in which, when x increases, y increases at a constant rate, like a linear graph should. This means that, when graphed, it would show a straight line, with slope 0.5
The cafeteria offers two snack options as shown in the table. Out of 18
students, 8 students choose Option B and the rest choose Option A. If the
total cost of option A is the same as the option B, what is the price of a
carton of milk?”
Answer:69,420
Step-by-step explanation:
9+10=21
The price of a carton of milk is $1.00
The given parameters are:
Number of students, n = 18Option A = 8Since 8 chose option A, it means that 10 would choose option B
So, the equation that represents when both price are equal is:
[tex]8(2x + 0.5) = 10(x + 1)[/tex]
Where
2x + 0.5 represents the unit price of option A
x + 1 represents the unit price of option B
Open the brackets
[tex]16x + 4 = 10x + 10[/tex]
Collect like terms
[tex]16x - 10x = 10 - 4[/tex]
Evaluate the like terms
[tex]6x = 6[/tex]
Divide
[tex]x = 1[/tex]
Hence, the price of a carton of milk is $1.00
Read more about equivalent equations at:
https://brainly.com/question/2972832
Evaluate the expression 2l + 2w for l = 5.7 and w = 6.2.
Answer:
so 5.7 square root is 2.45 so minus that by 2K and you get 3.4
Step-by-step explanation:
Help please this is my last question to my test need help don’t pass this up
Answer:
I dunno... I'm sorry I can't help
Step-by-step explanation:
Answer:
2z
Step-by-step explanation:
HELP FAST PLEASE!!! PLEASE
Indentify the interval on which the function is increasing.
Alfonso scored 18 points during his last basketball game, which was 40% of the points the entire scored. How many did the scored
Answer:
45
Step-by-step explanation:
yee
The gates to the zoo open at 8 a.m. and 60 people enter. The number of visitors to the zoo triples every hour until 1 p.m.
How many visitors are at the zoo at 1 p.m.? Write the answer in exponential notation.
Answer:240 visitors are at the zoo
Step-by-step explanation:
Answer:
54
Step-by-step explanation:
We can solve this problem by creating a chart from 9am to 12pm. Each hour we must "triple," meaning "multiply by 3."
9am-10am is 6 visitors
10am-11am is 6*3=18 visitors
11am-12pm is 18*3=54 visitors
The table on the left is that of a linear function, and the one on the right is that of an exponential function.
Can you tell which function has the higher rate of growth? How?
A)
There is not enough information to make a conclusion.
B)
The linear function is growing faster, because at x = 3 the y-value of the
linear function is larger.
C)
The exponential function is growing faster, because at x = 0 the y-value of
the exponential function is larger.
D)
The exponential function is growing faster, because it grows by a factor
that is multiplied by the previous y-value instead of being added like the
linear function.
Answer:
The answer is option D) The exponential function is growing faster, because it grows by a factor that is multiplied by the previous y-value instead of being added like the linear function.
Step-by-step explanation:
We can easily that by evaluating both functions at x = 10
Linear
f(x) = 7*10 = 70
Exponential
f(x) = 2^(10) = 1024
If a watch costs $ 40 and you must pay 6.5 % sales tax
Step-by-step explanation:
you will end up paying $66 dollars
What is -23/6 - 7/3
A-37/6
B-30/9
C-16/6
D37/6
Answer:
A
Step-by-step explanation:
i solved it
Find the indicated term of the arithmetic sequence.
22nd term: a1 = 4; d = 4
The 22nd term of the arithmetic sequence is:
.
Answer:
88
Step-by-step explanation:
Answer:
88
Step-by-step explanation:
plz give brainliest
J(3x3- 5x2 + 3x + 4) dx
What is the surface area of the right trapezoidal prism? To receive credit, you must show the work used to arrive at a final answer.
Answer:
x576 567 871 12 135 35l4367 89
Answer:
210cm
Step-by-step explanation:
54+66+30+42+18=210cm^2
What is the greatest common factor of 48x3, 12x4, and 36x5?