Answer:
A
Step-by-step explanation:
A= 0
B= 10
C=8
D= 80
Which means the answer is A
What is the quotient?
3
4
Answer:
0.75
Step-by-step explanation:
it makes sense that 3 is the Dividend, 4 is the Divisor, and you want to know the Quotient. Thus, the answer is:
3 ÷ 4 = 0.75
Arrange the tiles on both boards to find the value of x.
Solve the equation 5x + (-2) = 6x + 4 using the algebra
tiles
What tiles need to be added to both sides to remove
the smaller x-coefficient?
5 negative x-tiles
+
+
What tiles need to be added to both sides to remove
the constant from the right side of the equation?
2 positive unit tiles
Board sum: 5x + (-2) = 6x + 4
What is the solution?
The tiles are ready for moving.
Reset
x = -6
x = -2
X = 1
X = 2
1) Intro
Done
Answer:
-1
Step-by-step explanation:
evaluate the function below given f(2) f(x)=3x-10
Answer:
f(2) = -4
Step-by-step explanation:
for f(2), plug it into f(x)=3x-10
3(2)-10
6-10
-4
f(2) = -4
Two angles are supplementary. The measure of the smaller angle is four more than one third the measure of the larger angle. The measure of the larger angle is
Answer:
132
Step-by-step explanation:
2 Angles are supplementary:
x + y = 180
The smaller angle is four more than one third of other:
y = 1/3x + 4
Plug in y into the original equation:
x + 1/3x + 4 = 180
Solve the equation:
4/3x = 176
x = 176 * 3/4
x = 132
y = 48
x is the larger angle so 132 is the answer
The measure of smaller and larger angles will be 48 degrees and 132 degrees, respectively.
Given information:
The two angles are supplementary. Let them be x (larger) and y (smaller).
The measure of the smaller angle is four more than one-third the measure of the larger angle.
The above condition can be written as,
[tex]y=4+\dfrac{ x}{3}[/tex]
Supplementary angles are the angles whose sum of measure is equal to 180 degrees.
So, [tex]x+y=180[/tex]
Solve the above two equations as,
[tex]x+y=180\\x+(4+\dfrac{ x}{3})=180\\\dfrac{4x}{3}=176\\x=176\times \dfrac{3}{4}\\x=132\\y=48[/tex]
Therefore, the measure of smaller and larger angles will be 48 degrees and 132 degrees, respectively.
For more details, refer to the link:
https://brainly.com/question/19281924
Which line is perpendicular to a line that has a slope of -1/3?
a. line MN
b. line AB
c. line EF
d. line JK
Answer:
Option (c)
Step-by-step explanation:
Slope of a line that passing through two points M(-1, 4) and N(2, -5),
[tex]m_1[/tex] = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
= [tex]\frac{-1-2}{4+5}[/tex]
= -([tex]\frac{3}{9}[/tex])
= -[tex]\frac{1}{3}[/tex]
To find the line perpendicular line to MN we will use the property,
[tex]m_1\times m_2=-1[/tex]
Where [tex]m_1[/tex] and [tex]m_2[/tex] are the slopes of two perpendicular lines.
Slope of line perpendicular to MN [tex](m_2)[/tex] will be,
[tex]-\frac{1}{3}\times m_2=-1[/tex]
[tex]m_2=3[/tex]
Slope of line joining two points J(-3, -4) and K(3, -2),
Slope = [tex]\frac{-4+2}{-3-3}=\frac{1}{3}[/tex]
Slope of line joining two points A(-3, 2) and B(3, 0)
Slope = [tex]\frac{2-0}{-3-3}=-\frac{1}{3}[/tex]
Slope of the line joining points E(0, -3) and F(2, 3),
Slope = [tex]\frac{-3-3}{0-2}[/tex] = 3
Therefore, line EF is perpendicular to the line MN.
Option (c) is the answer.
Andres works 20 hours per week at a part-time job. His original pay rate was $10.00 per hour, but he recently received a pay raise of x dollars per hour. His new total weekly pay, y, is represented by the equation y=20(10+x).
If Andres earned $210 last week, what was the amount of Andres' raise per hour?
Answer:
X = .5
Step-by-step explanation:
10 × 20 = 200
10.5 × 20 = 210
Explanation:
Y = 210
210 = 20(10+X)
divide both sides by 20
10.5 = 10+X
subtract 10 from both sides
.5 = X
X = .5
Military radar and missile detection systems are designed to warn a country of an enemy attack. A reliability question is whether a detection system will be able to identify an attack and issue a warning. Assume that a particular detection system has a probability of detecting a missile attack. Use the binomial probability distribution to answer the following questions. a. What is the probability that a single detection system will detect an attack? (to 2 decimals) b. If two detection systems are installed in the same area and operate independently, what is the probability that at least one of the systems will detect the attack? (to 4 decimals) c. If three systems are installed, what is the probability that at least one of the systems will detect the attack? (to 4 decimals) d. Would you recommend that multiple detection systems be used? - Select your answer -
Answer:
(a) 0.90
(b) 0.99
(c) 0.999
(d) Yes
Step-by-step explanation:
A particular detection system has a 0.90 probability of detecting a missile attack.
Let X = number of detection system that detects a missile attack.
The random variable X follows a Binomial distribution with probability of success as, p = 0.90.
(a)
Compute the probability that a single detection system will detect an attack as follows:
[tex]P(X=1)={1\choose 1}(0.90)^{1}(1-0.90)^{1-1}\\=1\times 0.90\times 1\\=0.90[/tex]
(b)
Compute the probability that at least one of the two systems will detect the attack as follows:
[tex]P(X\geq 1)=1-P(X<1)\\=1-P(X=0)\\=1-{2\choose 0}(0.90)^{0}(1-0.90)^{2-0}\\=1-0.01\\=0.99[/tex]
(c)
Compute the probability that at least one of the three systems will detect the attack as follows:
[tex]P(X\geq 1)=1-P(X<1)\\=1-P(X=0)\\=1-{3\choose 0}(0.90)^{0}(1-0.90)^{3-0}\\=1-0.001\\=0.999[/tex]
(d)
On using only one system the probability that a single detection system will detect an attack is 0.90.
On using two systems the probability that at least one of the two systems detecting the attack is 0.99.
And on using three systems the probability that at least one of the three systems detecting the attack is 0.999.
So as the number of system is increasing the probability of detecting the attack is getting closer to 1.
Thus, it would be wise to recommend that multiple detection systems be used.
Identify the type of function represented by
f(x)=4x2^x
Answer:
derivative
Step-by-step explanation:
What can teachers do to alleviate statistics anxiety in their students? To explore this question, statistics anxiety for students in two classes was compared. In one class, the instructor lectured in a formal manner, including dressing formally. In the other, the instructor was less formal, dressed informally, was more personal, used humor, and called on students by their first names. Anxiety was measured using a questionnaire. Higher scores indicate a greater level of anxiety. The mean anxiety score for students in the formal lecture class was 25.40 . In the informal class, the mean was 20.41 . Classify 25.40 and 20.41 as parameters or statistics.
Answer: Statistic
Step-by-step explanation: The difference between a parameter and statistic lies in the set of observation from which either quantity is derived. The parameter represents numerical values which are derived by examining or considering an entire population while the statistic is used to define numerical quantities derived from subset of the population called the sample. In the scenario described above, the population of interest would be the entire population of student and hence statistical derivations made would be called parameters. However, the scenario only experimented using student from two different classes which is a subset of the entire population of student. Hence, the obtained mean values of 25.40 and 20.41 for students in the formal and informal classes are categorized as statistic.
What is the value of y?
Square root of 34 x square root of y = 34
Which inequality has -25 in its solution set?
y +11 >-9
Oy - 17 < -46
* 30 < y +5
O y +20 > -30
Answer:
The answer is Y+20> -30
Step-by-step explanation:
I took the test
A biker travels the 120 mi from New York , NY to Wilmington, DE in 8 hours. A bus, a truck, and a rider on a horse take the same route as the biker. At what speed does each of them travel if it takes them 2 hours, 2.5 hours, and 18.75 hours respectively to reach Wilmington? Do the speed and the time vary directly or inversely proportional when the same distance is traveled? Explain why.
Answer:
The speed is inversely proportional to the time when the same distance is traveled.
Step-by-step explanation:
Given that:
The distance traveled by the biker in 8 hours is 120 mi.
The speed of the biker=120/8=15 mi/hr.
[as speed=Distance travelled/Time taken]
As all take the same route, so the distance traveled by all is the same which is 120 mi
The time taken by the bus to cover this distance is 2 hours.
So, the speed of the bus = 120/2=60 mi/hr.
The time taken by the truck is 2.5 hours.
So, the speed of the truck = 120/2.5=48 mi/hr.
And the time taken by the rider is 18.75 hours.
So, the speed of the rider = 120/18.75=6.40 mi/hr.
Now, observe that to cover the same distance, the bus takes the least time, so, the bus is traveling at the fastest speed among all, while the rider has the slowest speed as the distance is the same for all. The truck and the biker have speed in between the speed of the bus and the rider.
It can be concluded that when the time of the journey for the same distance is less than speed is more.
So, the speed is inversely proportional to the time when the same distance is traveled.
Or, [tex]\text{Speed}\propto\frac{1}{Time}[/tex]
A class of 24 students went on a picnic. They had a choice between having a turkey sandwich or a vegetarian sandwich. Eighteen students selected turkey, and the rest selected vegetarian. Write a ratio to compare the number of turkey sandwiches to the number of vegetarian sandwiches.
4 : 3
4 : 1
1 : 3
3 : 1
I believe it is the ratio 3 : 1.
18 students chose the turkey sandwich.
Since the class has a total of 24 students, we can deduce that 6 students chose the vegetarian sandwich.
This gives us a ratio of 18 : 6.
When simplified, we get a ratio of 3 : 1.
What graph shows a rate of $7.50 per hour
Answer:
we can't see the graph
Step-by-step explanation:
gdhdhd
Find the value of x.
Answer:
74 Degrees
Step-by-step explanation:
How i got it was we already know a triangle equal 180 degrees so you have to just add 69 degrees by 37 degrees and once you get the answer to the subtract it by 180 degrees and you get 74 degrees.
What is h(3) when h(x) = 3x^2-2x+13
Answer:
34
Step-by-step explanation:
you plug in the number 3 for the x variables and solve the equation.
Answer:
h(3) = 34
Step-by-step explanation:
h(3) means plug 3 into h(x) anywhere there is an x in the equation.
h(3) = 3(3)² - 2(3) + 13
h(3) = 27 - 6 + 13
h(3) = 34
Which of the following are solutions to the equation below?
Check all that apply.
3x2 + 27 x = 30
A. -1
B. -10
C. -2
D. -2
E. 1
F. 10
Answer:
The answer is B. -10 and E. 1
Select all the parallelograms that have an area of 16 square units
Answer:it's c and b
Step-by-step explanation:
It's c an b
Math help!!! Who know the answers???
Answer:
original: -5, 1
Final: 2, 1
A map on a coordinate plane places two cities on coordinates. Upland is located at (25, 5) and Highland is located at (50, 10). If each unit on the map represents one mile, approximately how many miles apart are the two cities?
Answer:
Approximately 25.5 miles
Step-by-step explanation:
Location of both the cities are [tex] (25,\: 5)=(x_1, \:y_1) \:\&\: (50,\: 10)=(x_2 , \:y_2) [/tex]
The distance between two cities can be obtained by using distance formula:
Distance between two cities
[tex] = \sqrt{ {(x_2 - x_1)}^{2} + {(y_2 - y_1)}^{2}} \\ \\ = \sqrt{ {(50 - 25)}^{2} + {(10 - 5)}^{2}} \\ \\ = \sqrt{ {(25)}^{2} + {(5)}^{2}} \\ \\ = \sqrt{ 625 + 25} \\ \\ = \sqrt{ 650} \\ \\ = 25.4950976 \\ \\ \approx25.5 \: miles[/tex]
Kaitlin reads 49 chapters of a book in 7 hours. What is her rate in chapters per hour?
Answer:
7
Step-by-step explanation:
7 hours = 49 chapters
1 hours = x
x = (49×1)/7
x=7
Answer:
7 chapters per hour
Step-by-step explanation:
49 :7 =7 chapters per hour
What’s is the circumference of a circle of 12mm
Answer:
r ≈ 1.91mm
Step-by-step explanation:
A regular hexagon inscribed in a circle creates 6
equiangular triangles. If the radius of the circle is 10
inches, how far are points at A and B from the y-axis?
Answer: answer is A
Step-by-step explanation:
Edge 2020
Your question: A regular hexagon inscribed in a circle creates 6 equiangular triangles. If the radius of the circle is 10 inches, how far are points at A and B from the y-axis?
The correct answer would be They are both 5 inches from the y-axis
Solve the Equation: 1/3x=-5
Answer:
x = -15
Step-by-step explanation:
[tex] \dfrac{1}{3}x = -5 [/tex]
Multiply both sides by 3.
[tex] 3 \times \dfrac{1}{3}x = 3 \times (-5) [/tex]
[tex] x = -15 [/tex]
Look at the images above. How are the fish food box and the shipping box similar? How are they different?
They are similar because of the color, and they are different because of the size and shape .
Answer:
The boxes are similar because they have similar dimensions and there both rectangular prisms. The boxes are different because one box is larger than the other box.
Step-by-step explanation:
Which of the following is not true about reflections
Answer:
what are the options like A B C or D
. Automobile Insurance An insurance company
classifies drivers as low-risk, medium-risk, and highrisk. Of those insured, 60% are low-risk, 30% are
medium-risk, and 10% are high-risk. After a study, the
company finds that during a 1-year period, 1% of the
low-risk drivers had an accident, 5% of the medium-risk
drivers had an accident, and 9% of the high-risk drivers
had an accident. If a driver is selected at random, find
the probability that the driver will have had an accident
during the year.
Answer: during the year many medium risk are chosen
Step-by-step explanation:
If a bag contains 12 apples, 4 bananas, and 8 oranges, what is the part-to-whole ratio of apples to all fruit?
Answer:1:6 is the answer. there are 4 bananas and 24 pieces of fruit total so it would be 4:24 until you simplify it to 1:6
Step-by-step explanation:
Answer:
1:6
Step-by-step explanation:
broski
Construct a truth table for the statement ~( p v ~q)
pq Truth Table
Hello
T for True
F for False
[tex]\left|\begin{array}{c|c|c|c|c}p&q&\~q&pv\~q&\~(pv\~q)\\---&---&---&---&---\\T&T&F&T&F\\T&F&T&T&F\\F&T&F&F&T\\F&F&T&T&F\\\end{array}\right|[/tex]
thanks
21 lbs of potatoes cost $231. How much would 28 lbs cost?
Answer:
$308
Step-by-step explanation:
First, you have to find out how much it costs per pound, so you would divide 231 by 21. each pound of potatoes costs $11. so 11 x 28 would make it $308.
Answer:
$308
Step-by-step explanation:
$231/ 21lbs= $11 per pound
so, $11 x 28lbs = $308
