Answer:
b
Step-by-step explanation:
The probability for P(X<$400) is 0.7881.
What is z- score?The Z-score quantifies the discrepancy between a given value and the standard deviation. The Z-score, also known as the standard score, indicates how many standard deviations a specific data point deviates from the mean. In essence, standard deviation represents the degree of variability present in a given data collection.
Given:
Mean = $360
Standard Deviation = $50
We can use the z-score formula that is shown below:
Z = x - μ/σ
Where,
Z = standard score
x = observed value
μ = mean of the sample
σ = standard deviation
So,
z = 400 - $360/$50
z = 40/ 50
z= 0.8
and, P(x<400) = 0.78814
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Help plz I don’t get this
Answer:
[tex]27x^2[/tex]
Step-by-step explanation:
1) First, "cancel out" the 3s. Remember, exponents are kind of like another way of saying, "multiply this number by itself this many times." Whatever the bigger number is is the number that you multiply by itself, and the smaller number at the top indicates how many times you have to do that.
Take [tex]3^4[/tex], for example. It's saying "multiply 3 by itself 4 times." Therefore, you can write it as (3)(3)(3)(3):
[tex]\frac{3^4x^4}{3x^2} \\= \frac{(3)(3)(3)(3)x^4}{(3)x^2} \\[/tex]
Now, simplify. For each 3 in the denominator, cross out a 3 in the numerator. So, cross out the single 3 in the denominator, and cross out one 3 in the numerator. Then, multiply the left over 3s. This gives us this:
[tex]\frac{(3)(3)(3)x^4}{x^2}[/tex]
[tex]= \frac{27x^4}{x^2} \\[/tex]
2) Do the same with the x's. Write them out, cancel them out, and then multiply the leftovers together:
[tex]\frac{27x^4}{x^2}\\= \frac{27(x)(x)(x)(x)}{(x)(x)}\\= 27 (x)(x)\\= 27x^2\\[/tex]
Therefore, [tex]27x^2[/tex] is the answer.
w= x/y-x solve for x
Answer: w=−xy+x/y
Step-by-step explanation:
Let's solve for w.
w=
x
y
−x
Step 1: Multiply both sides by y.
wy=−xy+x
Step 2: Divide both sides by y.
wy
y
=
−xy+x
y
w=
−xy+x
y
Mr. Smith wants to order pizza for the Honor Roll party. He is going to buy one box of pepperoni pizza for $8.25 and c boxes of cheese pizza for $7.25 each. Which expression, in dollars, represents the amount Mr. Smith will spend on pizzas for the Honor Roll party? A.7.25c + 8.25
B.8.25c + 7.25 C.7.25c + 8.25c D.8.25 + c + 7.25
Answer:
Its A
Step-by-step explanation:
Because it is. i took the test :)
PLS HELP FAST!
A Food Pantry is making packages, Each package weighs 64 pounds.
Scenario 1: Each Package contains 4 identical bags of rice and a 7-pound bag of beans.
a. write an equation to represent the situation using x.
b. solution to the equation x = 14.25 (this has to be the answer to the equation you are answering)
Scenario 2: Each package contains 4 boxes. Each box contains a 7-pound bag of beans and a bag of rice. The bags of rice are all identical.
c. write an equation to represent the situation using x.
d. solution to the equation x = 9 (this has to be the answer to the equation you are answering)
Answer
64=4x+7 AND 64=4(7+x)
Step-by-step explanation:
4(x)=57 ->57+7=64 and where x=9 -> 7+9=16 ->16*4=64
PLS HELP
I BEG OF YOU
(5x-1)(x+1)-5+x-5+x
_____
Answer:
5x^2+x-6
Step-by-step explanation:
(5x-1)(x+1)-5x+x-5+x
(5x^2+5x-x-1)-5x+x-5+x
5x^2+x-6
What is 49% of 849 ?
Answer:
416.01
Step-by-step explanation:
49% is the same as 0.49
0.49 × 849 is 416.01
Graph the function. y = 1^x
What is 2 + 2 - 8 + 9 ( 36 + 900)
Answer: The answer is 941
Brainlist?
Step-by-step explanation:
Analyzing Functions Using an Equation and a Table
x +
is used to complete this
COF
The function f(x) =
table.
Which statements are true of the given function?
Check all that apply.
1 = -2
х
-1
1
Cf0) = 3
0
3
2
f(1) = -1
f(2)= 1
1
2
84) =
2
Non
1) Intro
✓ Done
Answer: f(x)=x
So whatever the input in x. Replace value of x in another side too.
Step-by-step explanation:
The question is not clear. Can you please attach the picture of the question?
Based on these observations, the following statements are true for the given function: f(0) = 3, f(1) = 4, and f(2) = 5.
What is Functions?Functions are mathematical entities that take an input, perform some operation on it, and produce an output.
They are often represented using function notation, such as f(x), where f is the name of the function and x is the input.
Using the given table and function f(x) = x + COF, we can make the following observations:
The value of COF is not provided in the table, so we cannot determine the exact equation of the function.From the table, we can see that f(0) = 3. This means that when x = 0, the value of the function is 3. We can substitute this value into the equation to find that 0 + COF = 3, which implies that COF = 3.With COF = 3, the equation for the function becomes f(x) = x + 3.From the table, we can see that f(1) = 4 and f(2) = 5, which are consistent with the equation f(x) = x + 3.The value of f(-1) is not provided in the table, so we cannot determine its value.The value of f(4) is not provided in the table, so we cannot determine its value.Thus, the statements that are true for the given function: f(0) = 3, f(1) = 4, and f(2) = 5.
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Why is Rolle's Theorem important
help, please help pls
Find the zeros of the function and write in a+bi form.
-(x+1)^2-4=0
Answer:
x = -(1 + 4i)
or x = -1+4i
Step-by-step explanation:
From what we have;
-(x + 1)^2 = 4
(x + 1)^2 = -4
x + 1 = √-4
x + 1 = -4i or 4i
x = -1 - 4i or -1 + 4i
3
Sydney is going to run in
a 3 mile race. How many
feet will she run?
5. Fill in table or answer question.
Sydney will run 15,840 feet
Evaluate :√147 + √192- √3
Step-by-step explanation:
=√3×7×7+√3×8×8-√3
=7√3+8√3-√3
=14√3
hope it helps..
Pls help I’ll brainlest and give extra points
Answer:
No, he should not. He will only have $200 left over which he needs to put aside for savings and buying food and other goods and utilities. He should not buy until he has saved up more.
Step-by-step explanation:
What is the slope-intercept form equation for the line?
Answer:
The answer is [tex]y = - \frac{4}{5} x + 5[/tex].
Step-by-step explanation:
☆Remember:
[tex]slope = \frac{rise}{run} [/tex]
▪Happy To Help <3
what is 18/7 reduced to the lowest term
Answer:
18/7
Step-by-step explanation:
You cannot simplify this any further.
Answer:
its 2 4/7
Step-by-step explanation:
If you mean simplifying it
Which equation could be used to solve this problem?
The sum of two consecutive integers is 31. Let x represent the first number. Find the
numbers.
x + (x - 1) = 31
X + (x + 1) = 31
X + (2x) = 31
x + (2x tj 1) = 31
i need your help guys i’m not smart at math!!
Answer:
16
Step-by-step explanation:
x + (x-1) = 31
2x - 1 = 31
2x = 31 + 1
2x = 32
x= 16
12. If 15 out of 20 students vote to go to the science museum, what fraction of the students want to go to the museum? Write the fraction in simplest form.
Answer:
3/4
Step-by-step explanation:
divide both numerator and denominator by 5 15/20 = 3/4
What is the quotient of 5/7 divided 3 1/3
Answer:
4 1/21 is the answer
The ratio of money in Terry's bank account to Faye's bank account was 3:5.
Terry then put £220 in his account and Faye withdrew £300 from her account.
They now had the same amount in their accounts.
How much did Terry initially have?
Answer:
Terry's initial amount = £780
Step-by-step explanation:
Given that:
Ratio of Terry's money to Faye's money = 3 : 5
Let,
x be the amount of money.
Terry's amount = 3x
Faye's amount = 5x
Now,
3x + 220 = 5x - 300
220+300 = 5x - 3x
520 = 2x
2x = 520
Dividing both sides by 2
[tex]\frac{2x}{2}=\frac{520}{2}\\x=260[/tex]
Terry's initial amount = 3x = 3(260) = £780
Hence,
Terry's initial amount = £780
You earn 85% on a quiz the quiz is worth a total of 40 points how many points did you earn
Answer:
34
Step-by-step explanation:
What does x stand for
-4x-10≤2
Answer:
x ≥ − 3
Step-by-step explanation:
Evaluate 8^[tex]\frac{5}{3}[/tex]
Answer:
Step-by-step explanation:
32 is the correct answer
solve for x if QR = 3x + 16 and GH = 5x - 22
Answer:
3x + 16 = 5x - 22
x = 10
Help plz ;~; this is so hard
Answer:
x = 29.15
Step-by-step explanation:
a^2 + b^2 = c^2
15^2 + 25^2 = 890
square root of 850 is 29.154759....
:)
Answer:
The correct answer is 30.
Step-by-step explanation:
To find this out I found the fraction of 6 and 8 to 10. This is 3/5 and 4/5 to find x on the other triangle all I had to do was multiply 25 times 1 1/5. Sorry for the bad explanation it was kind of confusing to word but I hope this helps!
HELPPP PLSSSS I BEGGGG YOUUUU
Identify each dot plot as skewed right, skewed left, or symmetric.
Answer:
the first one is skewed right the second one is skewed left and the last one is symmetrical.
Step-by-step explanation:
6.Pirate Pete wants to give each of his pirate friends an equal number of gold
coins. But, he can't remember if 3, 4, 5 or 6 of his pirate friends are coming
to his party. What is the fewest number of gold coins that Pirate Pete must
have so that each pirate friend who comes to his party gets the same number
of gold coins?
Answer:
60
Step-by-step explanation:
