Answer:
B
Step-by-step explanation:
45*4=180
Answer:
its b
Step-by-step explanation:
i've tooken the test
A movie on TV is 1 hour 45 minutes long with commericials . there are 6 commercials breaks each 4 minutes long how long is the movie without the commercials breaks ?
Answer:
6*4= 24 minutes of commercials
105-24= 81 minutes
1 hour and 21 minutes is the movie without commercial breaks
Step-by-step explanation:
Find all solutions for a triangle with a = 14, b= 12, and B = 90°.
a)A = 90°; C = 30°; c= 10
b)A = 60°; C = 30°: c = 10
c)A = 90°; C = 60°; c = 12
d)no solutions
Answer:
No solution.
Step-by-step explanation:
Given
[tex]a = 14; b= 12; B = 90^\circ[/tex]
Required
Find all possible solutions
If [tex]B = 90^\circ[/tex], then the triangle is right-angled and the hypotenuse is at b
Given that [tex]a = 14; b= 12;[/tex]
This implies that a > b
In a right-angled triangle, the hypotenuse (side b) is the longest.
Since this is not true for the given sides, then the triangle has no solution.
what is the value of x
Answer:
A. 10
Step-by-step explanation:
Formula for the Pythagorean Theorem: a^2+b^2=c^2
Substitute: 6^2+8^2=c^2
6*6+8*8=c^2
36+64=c^2
100=c^2
Then, find we to the square root in order to isolate c^2.
10=c.
Final answer, A. 10.
WILL GIVE BRAINLIEST
sketch the graph of the following equation: y=|4-3x|
Answer:
attached
Step-by-step explanation:
y=|4-3x| y: positive number
Helpppppp !!! Due in a few hours .
Answer:
y = -4/9x + 1/3 letter H
Step-by-step explanation:
Let's solve for y. 4x+9y=3 Step 1: Add -4x to both sides. 4x+9y+−4x=3+−4x 9y=−4x+3 Step 2: Divide both sides by 9. 9y 9 = −4x+3 9 y= −4 9 x+ 1 3
Does the Y-axis or X-axis come first?
Answer:
X
Step-by-step explanation:
The X-axis is the one on the bottom if you are in the first quadrant. The y-axis is on the left or up and down. If you are writing location(I can't remember the name but it looks like this (2,3)) you would write the X-axis down first. Hope this helped!
If a worker is making $8 an hour how much would they make in 6 hours?
Answer:
$48
Step-by-step explanation:
8•6= 48
.....uchild
Suppose the probability of a false positive result on a mammogram is 4%. Suppose that the probability of a false negative result on a mammogram is 2%. Assume that the probability that a randomly chosen woman has breast cancer is 0.0002. If a woman has a positive test result, what is the probability that she actually has breast cancer
Answer:
0.0049 = 0.49% probability that she actually has breast cancer
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
In which
P(B|A) is the probability of event B happening, given that A happened.
[tex]P(A \cap B)[/tex] is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Positive test result
Event B: Breast cancer
Probability of a positive test result:
4% of (1 - 0.0002)
98% of 0.0002
So
[tex]P(A) = 0.04*(1 - 0.0002) + 0.98*0.0002 = 0.040188[/tex]
Having breast cancer and testing positive.
98% of 0.0002
So
[tex]P(A \cap B) = 0.98*0.0002 = 0.000196[/tex]
What is the probability that she actually has breast cancer?
[tex]P(B|A) = \frac{0.000196}{0.040188} = 0.0049[/tex]
0.0049 = 0.49% probability that she actually has breast cancer
Please answer quickly
Answer:
B
Step-by-step explanation:
1. Combine exponents
9^4 * 9^8 = 9^12
I got 12 will someone double check me please? No links I can’t open them
Answer:
the first 6⅔
Step-by-step explanation:
in the image
A group of tenth grade students responded to a survey that was asked which Math course they were currently enrolled in. The survey data were broken down as shown in the table above. Which of the following categories accounts for approximately 19% of all survey respondents?
A. Females taking Geometry
B. Females taking Algebra II
C. Males taking Geometry
D. Males taking Algebra I
Answer:
C.
Step-by-step explanation:
The bottom-right most cell tells us that the total number of students that responded to the survey is 310 students.
To find the answer, we can go through each choice.
A. Females taking Geometry
Row 1 Column 2 tells us that 53 females are taking geometry. 53/310 is about 17%.
B. Females taking Algebra II.
Row 1 Colume 3 tells us that 62 females are taking Algebra II. 62/310 is 20%.
C. Males taking Geometry.
Row 2 Colume 2 tells us that 59 males are taking Geometry. 59/310 is about 19%. Choice C is correct.
D. Males taking Algebra I.
44 out of the total 310 respondents are male and is taking Algebra I. 44/310 is about 14%.
Answer:
C
Step-by-step explanation:
59/310 *100 = 19.03%
so 19%
HELP!! Is –41/2 equivalent to (–4)1/2? Why or why not?
Work out and simplify where possible
a) 2/5+1/3
b) 5/9-1/2
AT&T would like to test the hypothesis that the average revenue per retail user for Verizon Wireless customers is greater than $50. A random sample of 32 Verizon Wireless customers provided an average revenue of $54.70. It is believed that the population standard deviation for the revenue per retail user is $11.00. Using LaTeX: \alpha=0.05α = 0.05 , answer the following questions: a. Identify the null and alternative hypotheses to conduct an appropriate hypothesis test of mean. (3 points) b. Use the critical value approach to test this hypothesis. (3 points) State your decision and conclusions explicitly. (3 points) c. Use the p-value approach to test this hypothesis. (3 points) State your decision and conclusions explicitly. (3 points) d. Assume that the actual population mean for revenue per retail user is $44.30. Calculate the probability of type II error. (5 points)
Answer:
H0; u = 50 average revenue equals 50
H1: u not equal to 50, average revenue not equal to 50
This is 2 tailed
Alpha = 0.05
Z critical = 1.6449
We find the test statistics
Mean = 54.7
Sd = 11
n = 32
barX - u/sd/√n
= 54.70-50/11/√32
= 4.70/1.9435
= 2.418
Decision rule: reject H0 if test statistic > critical value. Accept if otherwise
2.418>1.6449
We reject H0
We conclude that average revenue is not equal to zero
C. P(z>=2.418) = 0.9922
1 - 0.9922
= 0.0078 (I used Ms excel here)
0.0078 < 0.05
So we Reject h0
How many solutions does the inequality x > 12 have? Explain.
Answer:
Infinite solutions
Step-by-step explanation:
Suppose there are finite solutions to x > 12
Then there exists a largest solution, which we call X
But X + 1 > X, and X > 12, so by transitivity X + 1 > 12 and thus is an even larger solution
this means X is not the largest solution
Therefore, by contradiction, the assumption that there are only finite solutions is false
Pls help asap will mark brainliest firtst answer!!
Answer:
The answer is C
Step-by-step explanation:
9 of the 20 drawn were red
9/20* 100 = 45
Find quotient and reminder, when 135 is divided by 12
Answer:
11 is quotient and reminder is 3
Step-by-step explanation:
11x12=132, 135-132=3
4. The quotient of a number and 3 is at least 5.
Answer:
15 20 25 any of those!
Step-by-step explanation:
mark brainliest pls
Circuit City is having a sale on computers. Max picks out a computer that was originally $1199.99 If the computer is 41% off, What is the final price of the computer? Round to the nearest penny.
Answer:
$707.9941 rounded is $707.99
Step-by-step explanation:
41%=0.41
1199.99*0.41=491.9959
$1199.99-$491.9959=$707.9941
$707.9941 rounded is $707.99
the four doesn't round up so it would just be $707.99.
Hope this helped!
Please help! Can anyone help me out with this question?
Answer:
[tex]\displaystyle h'(s) = 64s + 20[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightDistributive Property
Algebra I
Terms/CoefficientsCalculus
Derivatives
Derivative Notation
Derivative of a constant is 0
Basic Power Rule:
f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹Derivative Rule [Product Rule]: [tex]\displaystyle \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)[/tex]
Step-by-step explanation:
Step 1: Define
[tex]\displaystyle h(s) = (-8s - 9)(-4s + 2)[/tex]
Step 2: Differentiate
[Derivative] Product Rule: [tex]\displaystyle h'(s) = \frac{d}{ds}[(-8s - 9)](-4s + 2) + (-8s - 9)\frac{d}{ds}[(-4s + 2)][/tex][Derivative] Basic Power Rule: [tex]\displaystyle h'(s) = (1 \cdot -8s^{1 - 1} - 0)(-4s + 2) + (-8s - 9)(1 \cdot -4s^{1 - 1} - 0)[/tex][Derivative] Simplify: [tex]\displaystyle h'(s) = (-8)(-4s + 2) + (-8s - 9)(-4)[/tex][Derivative] Distribute [Distributive Property]: [tex]\displaystyle h'(s) = 32s - 16 + 32s + 36[/tex][Derivative] Combine like terms: [tex]\displaystyle h'(s) = 64s + 20[/tex]Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Derivatives
Book: College Calculus 10e
Maths please help me
Answer:
Libby = 16
Tom = 8
Kyle = 4
Step-by-step explanation:
total parts = 4+2+1 = 7
28/7 parts = 4 per part
Libby = 4 x 4 = 16
Tom = 2 x 4 = 8
Kyle = 1 x 4 = 4
09.04 Continuity at a point
Find the indicated limit, if it exists. (2 points)
Answer:
6
Step-by-step explanation:
limit is defined when the limit from both side are defined and equal to f
[tex]x-> -10^-[/tex], limit f(x)=-4-(-10)=6
f(-10)=6
[tex]x-> -10^+[/tex], limit f(x)=(-10)+16=6
Then
[tex]x->-10[/tex], limit f(x)=6
What is the right way to use substitution method?
Answer:
Step-by-step explanation:
Substitution method can be applied in four steps. Step 1: Solve one of the equations for either x = or y = . Step 2: Substitute the solution from step 1 into the other equation. Step 3: Solve this new equation Happy too help!
What is the constant of proportionality in the equation y=2/3x
Answer: hope this helps . Check out the image I also have graph if u want
Step-by-step explanation:
Answer:
it's 2/3
Step-by-step explanation:
i have da proff
divide. what is the answer too 46/532
Answer:
0.08646617
Step-by-step explanation:
John bought a video game that was 30% off. The game was originally $70. What was the sale price of the game?
Answer:
49 Dollars
Step-by-step explanation:
If you subtract 70- 30%, you get 49 dollars
Hope this helps =)
Pls help with this question. It is due today!
Answer: B
Step-by-step explanation:
Hey can someone help pls
Answer:
Step-by-step explanation:
x2 - 2x - 35
First we have to find the factors of 35 that by subtracting equal to 2 so
x2 - 7x + 5x - 35
Taking common
x(x - 7) + 5(x - 7)
(x - 7) and (x + 5) are the factors
If you roll two six-sided dice, what is the probability that at least one dies shows a 5 ?
Answer:
[tex]\frac{11}{36} = 0.3056[/tex] probability that at least one dies shows a 5.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Each dice:
6 sides, one of which is 5.
So 6-1/6 = 5/6 probability of rolling a 5.
Probability of not rolling a five in two rolls:
(5/6)^2 = 25/36
Probability of rolling a five in at least one of the rolls:
[tex]p = 1 - \frac{25}{36} = \frac{36}{36} - \frac{25}{36} = \frac{11}{36} = 0.3056[/tex]
[tex]\frac{11}{36} = 0.3056[/tex] probability that at least one dies shows a 5.
The city council voted on a new tax. The council has 20
total members and 20% of them voted in favor of the
new tax. How many members voted in favor of the tax?
Answer:
4
Step-by-step explanation:
You have to multiply the total members by the percentage.
20X[tex]\frac{20}{100}[/tex] =4