Answer:
y = 5.25x + 80
Step-by-step explanation:
total income = 5.25 * phones + 80 salary
Answer:
y = 5.25x + 80
Step-by-step explanation:
The table shows the results of a class survey about pets. Suppose 53 students were surveyed. About how many students have one pet? Justify your answer. (I really need an answer now! Please answer as soon as you can )
Help Pls
Its a math question, see attachments
Answer:
1) A) 25%
2) B) 16%
3) A) 93%
Step-by-step explanation:
1)
0.25 = 25%
2)
More than 3 means, 4 and 5
0.12 + 0.04 = 0.16 = 16%
3)
x ≥ 1
So that means 1+ days (everything except 0)
0.25 + 0.18 + 0.34 + 0.12 + 0.04
0.93 = 93%
Determine whether the vertex of the function is a maximum or minimum, and find its coordinates.
f(x) = -2x2 + 32x - 126
Answer:
MAX: (8, 2)
too lazy to write out the solution, sorry.
Answer:
this is what i got -2(x-9)(-7) hope it helps
Step-by-step explanation:
g The proportion of U.S. births that result in a birth defect is approximately 1/33 according to the Centers for Disease Control and Prevention (CDC). A local hospital randomly selects five births and lets the random variable X count the number not resulting in a defect. Assume the births are independent. What is the probability that at least one of the births results in a defect
Answer:
0.1426 = 14.26% probability that at least one of the births results in a defect.
Step-by-step explanation:
For each birth, there are only two possible outcomes. Either it results in a defect, or it does not. The probability that a birth results in a defect is independent of any other birth. This means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
The proportion of U.S. births that result in a birth defect is approximately 1/33 according to the Centers for Disease Control and Prevention (CDC).
This means that [tex]p = \frac{1}{33}[/tex]
A local hospital randomly selects five births.
This means that [tex]n = 5[/tex]
What is the probability that at least one of the births results in a defect?
This is:
[tex]P(X \geq 1) = 1 - P(X = 0)[/tex]
In which
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{5,0}.(\frac{1}{33})^{0}.(\frac{32}{33})^{5} = 0.8574[/tex]
[tex]P(X \geq 1) = 1 - P(X = 0) = 1 - 0.8574 = 0.1426[/tex]
0.1426 = 14.26% probability that at least one of the births results in a defect.
A philosophy professor assigns letter grades on a test according to the following scheme. A: Top 10% of scores B: Scores below the top 10% and above the bottom 58% C: Scores below the top 42% and above the bottom 20% D: Scores below the top 80% and above the bottom 9% F: Bottom 9% of scores Scores on the test are normally distributed with a mean of 67.3 and a standard deviation of 7.3. Find the numerical limits for a D grade. Round your answers to the nearest whole number, if necessary.
Answer:
The numerical limits for a D grade are 58(lower limit) and 61(upper limit).
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Scores on the test are normally distributed with a mean of 67.3 and a standard deviation of 7.3.
This means that [tex]\mu = 67.3, \sigma = 7.3[/tex]
D: Scores below the top 80% and above the bottom 9%
This means that lower bound is the 9th percentile and the upper bound is the 100 - 80 = 20th percentile.
9th percentile:
This is X when Z has a pvalue of 0.09. So X when Z = -1.34.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]-1.34 = \frac{X - 67.3}{7.3}[/tex]
[tex]X - 67.3 = -1.34*7.3[/tex]
[tex]X = 57.52[/tex]
Rounding to the nearest whole number, 58.
20th percentile:
This is X when Z has a pvalue of 0.2. So X when Z = -0.84
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]-0.84 = \frac{X - 67.3}{7.3}[/tex]
[tex]X - 67.3 = -0.84*7.3[/tex]
[tex]X = 61.17[/tex]
Rounding to the nearest whole number, 61.
The numerical limits for a D grade are 58(lower limit) and 61(upper limit).
X
Help me please, find the length of x and y from 34. It is a 45 45 90 triangle.
Answer: X and y are about 24.04
Step-by-step explanation:
for a 45 45 90 triangle [tex]C=a\sqrt{2}[/tex]
[tex]34=a\sqrt{2}[/tex]
[tex]34^{2} =2a^{2}[/tex]
[tex]1156=2a^{2} \\578=a^{2} \\24.04=a[/tex]
What is the missing value in the table?
answer;
C.21 you have to subtract each number.
what is BD?
please help i can’t fail another test
Answer:
C. 8
Step-by-step explanation:
BD is the altitude of the right triangle.
Apply the altitude theorem of a triangle to find BD. Based on the theorem, thus:
h = √(xy)
Where,
h = BD
x = 16
y = 4
Plug in the values
BD = √(16*4)
BD = √64
BD = 8
find the derivative of 1/x^4/3
Answer:
[tex]\displaystyle \frac{dy}{dx} = \frac{-4}{3x^5}[/tex]
General Formulas and Concepts:
Calculus
Differentiation
DerivativesDerivative NotationDerivative Property [Multiplied Constant]: [tex]\displaystyle \frac{d}{dx} [cf(x)] = c \cdot f'(x)[/tex]
Basic Power Rule:
f(x) = cxⁿf’(x) = c·nxⁿ⁻¹Step-by-step explanation:
Step 1: Define
Identify
[tex]\displaystyle y = \frac{\frac{1}{x^4}}{3}[/tex]
Step 2: Differentiate
Derivative Property [Addition/Subtraction]: [tex]\displaystyle y' = \frac{1}{3} \frac{d}{dx} \bigg[ \frac{1}{x^4} \bigg][/tex]Rewrite: [tex]\displaystyle y' = \frac{1}{3} \frac{d}{dx}[x^{-4}][/tex]Basic Power Rule: [tex]\displaystyle y' = \frac{1}{3}(-4x^{-5})[/tex]Simplify: [tex]\displaystyle y' = \frac{-4}{3x^5}[/tex]Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Differentiation
33 Triangle RST is similar to triangle RWW.
10 mm
d mm
5 mm
18 mm
What is the value of din millimeters?
A 27 mm
В
12 mm
C 9 mm
D
13 mm
Answer:
27
Step-by-step explanation:
Answer:
what the other fella put 27
Step-by-step explanation:
32 / (-4) . 3 - (-1)
Answer:
-32
Explanation:
32/ -4 = -8
3 - -1 = 3+1 = 4
-8x4 = -32
Bianca bought a pack of rechargeable batteries for
$9.99. If the sales tax on the batteries is 3% and Bianca
pays with $11 cash, how much change will she get back?
hi
price all taxes included is : 9.99 + 0.03*9.99 ≈ 10.29
So change is : 11 - 10.29 = 0.71
Answer:
acualy you would divide 9.99 by 3
Is 7/20 equal to 0.35
Answer:
yes it is
Step-by-step explanation:
Given points B (-9,5), L (5, 13), U (8,-4), and E(-1,-6).
A) Find the component form of vector BE.
B) Find the component form of vector UL.
Explanation is in a file
bit.[tex]^{}[/tex]ly/3a8Nt8n
A student paid 256.37 in school fees how much has he paid to the nearest hundred
Answer:
300
Step-by-step explanation:
256.37 5 and 6 is high enoughh to boost that 2 up to a 3
Answer:
uhhh 256.37 is rounded to the nearest hundreth
Unless you mean hundred thwn it would be 300
Holly has4/6quart of potato salad. She gives2/6
quart to a friend,
How much potato salad does she have left?
Answer:
Hi! The answer to your question is [tex]1/3[/tex]
Step-by-step explanation:
☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆
☆Brainliest is greatly appreciated!☆
Stay Safe!!!
Hope this helps!!
- Brooklynn Deka
Type the correct answer in the box. The area of the figure is square units.
Answer:
26 units squared
Step-by-step explanation:
multiply
5x2=10
5x2=10
3x2=6
add them together and you get
26
Answer:
26
Step-by-step explanation:
Find the volume and show work.
Rachel had a loan for $4,000 loan for 4 years.
She paid a total of $608 in simple interest over the 4 years.
What was the annual interest rate for the loan?
9514 1404 393
Answer:
3.8%
Step-by-step explanation:
The interest on a simple-interest loan is ...
I = Prt
where P is the principal value, r is the annual rate, and t is the number of years.
Solving for r, we get ...
r = I/(Pt) = 608/(4000×4) = 0.038 = 3.8%
The annual interest rate for the loan was 3.8%.
PLEASE HELP AGAIN. IM TIMES
Answer:
u didnt put any questions
Step-by-step explanation:
Find the area of the triangle
Answer:
The answer to this problem is 12.5.
Step-by-step explanation:
The formula for finding the area of a triangle is b * h * 1/2 or divide by 2 (base times height times one-half or two).
Since this is a equilateral triangle, all of the sides are equivalent to each other. Since we know one of the sides is 5, all of the sides are 5.
5 * 5 = 25
Then you need to multiply this answer by 1/2 or divide by 2, whichever is easier.
25 / 2 = 12.5
The answer is 12.5.
Also, it would be FANTABULOUSLY AMAZING if I could get brainliest!!!
Just sayin, that would be pretty great.
The length and width of a rectangle are 19.2 cm and 12.4cm respectively. Find the angle between a diagonal and the shorter side of the rectangle.
9514 1404 393
Answer:
57.1°
Step-by-step explanation:
The sides of the rectangle are adjacent and opposite the angle, so the measure is ...
α = arctan(opposite/adjacent) = arctan(19.2/12.4) ≈ 57.1°
The angle between the diagonal and the short side is about 57.1°.
Help PleSssssssssssssssssssssssssssssssszsss
Answer:
I think the answer is 5 because on the top it says 5 miles is about 8km but I'm not positive
Find the Area of the figure below, composed of a rectangle with a semicircle removed
from it. Round to the nearest tenths place.
Answer:
69.9 sq units
Step-by-step explanation:
find area of entire rectangle then subtract out area of semi-circle
(14 x 6) - (3²π ÷ 2)
84 - 14.1 = 69.9
69.9
Step-by-step explanation:
John shared 3 cookies with 4 friends. What fraction of a cookie did each friend receive?
Answer:
3/4 of a cookie
Step-by-step explanation:
What name is given to an angle that
measures 150°?
Answer:
Obtuse
Step-by-step explanation:
Since 150°>90°, it is an obtuse angle
Kane's Furniture Store advertised a table at a 13% discount. The original selling price was $113, and the sale price was $100. Was the sale price consistent with the
ad? Explain
Select the correct choice below and, if necessary, fill in the answer box within your choice.
A. No, the sale price was higher than it should have been
(Round to the nearest cent) __
B. No, the sale price was 5 lower than it should have been
(Round to the nearest cent.)__
C. Yes, the sale price was consistent with the ad, because it represents a 13% discount.
Answer:
A
Step-by-step explanation:
100%=$113 what about 87( 100-13)(113×85)÷100ans is 98.31 which should be the sale price but the sale price is 100 it is $16.90 higherAl reunir terminos semejantes y resolver
-2x+3y²-5z+6x²-3y²+5y² +4x²
Se obtiene como resultado?
Answer:
1 0 ^ 2 + 5 ^ 2 − 2− 5
Step-by-step explanation:
Is the relation shown in the table a function?
Yes
No
Answer:
Yes
Hehe......
Answer: Yes
Step-by-step explanation:
HELP ME PLEASE ASAP
Answer:
33
Step-by-step explanation:
angles on a straight line sum up to 180°
104+x+x+10=180
114+2x=180
2x=180-114
2x=66
x=33
Answer:
C. 33
Step-by-step explanation:
So we have 180 degree line here, so lets take 104 and add the 10 from the expression inside the parenthesis on the other angle. We add 43 to 114 and get 147. We can then add 147+33 and get 180 which is equivalent to the angle.