Answer:
x=16
Step-by-step explanation:
help pls will mark brainliest
Answer:
The answer is C,
Step-by-step explanation:
Answer:
3+(-9) = -6 because -6 is 9 units to the left of 3.
Step by step explanation:
Kelvin LOSES 9 points in the 2nd round. This implies that we have to go to the left on the number line because he loses points. The point K is at the number 3 in the number line. When we go 9 units to the left, we get 3-9 = -6.
A car is sold for $18,000. After one year, the value of the car is $9,900. Write an exponential function y to determine the value of
the car after x years if the rate of decrease is the same each year.
y =
Estimate the value of the car after 6 years. Round the answer to the nearest dollar.
Answer:
temperature and kinctic energy are related
What is the answer for number 3
Answer:
x = 2
Step-by-step explanation:
-1.5x + 33 = 30
-1.5x = 30 - 33
x = -3 / -1.5
x = 2
Answer:
the first person gave u the right answer so head on ur going to get it right. wish u well
Find the AQR Ten for the following list of numbers: 1, 2, 4, 3, 3, 8, 5, 6
The calculated IQR of the list of numbers is 3
How to calculate the IQR of the list of numbersFrom the question, we have the following parameters that can be used in our computation:
1, 2, 4, 3, 3, 8, 5, 6
Sort the above number in ascending order
So, we have
1, 2, 3, 3, 4, 5, 6, 8
Split the above numbers to 2
So, we have
1, 2, 3, 3
4, 5, 6, 8
In the above, we have
Q1 = (2 + 3)/2 = 2.5
Q3 = (5 + 6)/2 = 5.5
using the above as a guide, we have the following:
IQR = 5.5 - 2.5
Evaluate
IQR = 3
Hence, the IQR of the list of numbers is 3
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What is
7 1/4 - 3 3/4 =?
Answer:
3 1/2
Step-by-step explanation:
7 1/4 - 3 3/4
Borrow 1 from the 7 in the form of 4/4
6 + 4/4 + 1/4 - 3 3/4
6 5/4 - 3 3/4
3 2/4
Simplify the fraction
3 1/2
Answer:
\(3 \frac{1}{2} \)
Step-by-step explanation:
\(7 \frac{1}{4} - 3 \frac{3}{4} \\ \frac{29}{4} - \frac{15}{4} \\ = \frac{14}{4} \\ = \frac{7}{2} \\ = 3.5 = 3 \frac{1}{2} \)
hope this helps
brainliest appreciated
good luck! have a nice day!
If your born on 1900 how old would have you been on 2009?
Answer: 109 years old
Step-by-step explanation:
2009-1900=109
Answer:
109years old
Step-by-step explanation:
1900
1900 to 2000 is 100 years old
2000 to 2009 is 9 years old
100+9=109
What is mKNL?
Enter your answer in the box.
Answer:
102°
Step-by-step explanation:
As the vertically opposite angles are equal,
\(5x+2={3(x+14)\)
Now let's solve for x now
\(5x+2=3(x+14)\\\)
\(5x+2=3x+42\)
\(5x-3x=42-2\)
\(2x=40\)
\(\frac{2x}{2} =\frac{40}{2}\)
\(x=20 \\\)
Now let's find the value of KNL
\(3(x+14)\\3(20+14)\\3*34\\102\)
Hope this helps you.
Let me know if you have any other questions ;-)
Each side length of a triangle is 4 cm. What type of triangle is it?
☐ right
□acute
Equilateral
Isosceles
Answer: Equilateral
Step-by-step explanation:
It's equilateral because it says that each side of the triangle is 4cm. In simple words, all the sides of triangle are equal. Such a triangle is called an equilateral triangle.
Hope you understood.
Solve the following:
\(3x + 2 = 14\)
Answer:
x = 4
Step-by-step explanation:
3x + 2 = 14
→ 3x = 14 - 2
→ 3x = 12
→ x = 12/3
→ x = 4
````````````````````````
From a class of 25 students how many group of 4
Answer: Well, 4 groups of four, and roughly 6 student in a group
Step-by-step explanation:
The question is not clear, but 25 divided by 4 is 6.25, but it’s students so 6 or 7.
Equations
Pls give an explanation
2x + 12 = 24
I don’t understand it thank you
Answer:
2x+12=24
first you subtract 12 from both sides
2x+12=24
-12. -12
The 12-12 should cancel itself, the rest of the equation you bring down to get
2x=12 (because 24-12=12)
Now you have 2x=12.
you then divide 2x by both sides.
2x=12
/2x=/2x
The 2x/2x cancels itself out so you then solve for 12/2x.
For this you just divide 12/2 which is 6!
x= 6 is your final answer.
to check this equation you can plug your number back into x to see if it is true! 2(6)+12=24.
6 times 2 is 12 and 12+12 is 24 so your answer (6) is true!
hope this helps! :D
Answer:
\(X = 6\)
Step-by-step explanation:
\(2x + 12 = 14\)
\(-12\) \(-12\)
---------------------
\(\frac{2x}{2} = \frac{12}{2}\) = \(x = 6\)
1. Set the equation up.
2. isolate the x from 2x then do the opposite of 12 to -12
3. subtract from 14
4. make proportion.
5. divide both sides.
6. \(Answer= x=6\)
hope this helped :) have a great night.
Irfan has 7 times the money that Vivek has. If Irfan has Rs. 900 more than Vivek, how much money does Vivek have?
Answer:
Vivek has Rs. 150
Step-by-step explanation:
Amount of Money Vivek has = x
Irfan = 7x
Irfan = 900 + x
Set Irfan's equations equal to one another:
7x = 900 + x
=> 6x + x = 900 + x (Now you can subtract x from both sides)
=> 6x = 900
=> x = 900/6 (Divide both sides by 6 to isolate x)
=> x = 150
Irfan has Rs. 1050 (7 x 150 = 1050)
Since Vivek's money is x, Vivek has Rs. 150
Here is Takeshi's work determining a third point on the graph of an exponential function, `h(x)`.
Explain why the work is incorrect.
Answer:
Step-by-step explanation:
Let h(x) = y
The exponentail function is of the form :
\(y = ab^x\)
We have :
\(y_{_1} = ab^{x_{_1}}\\y_{_2} = ab^{x_{_2}}\\\\\implies \frac{y_{_1}}{y_{_2}} = \frac{ab^{x_{1}}}{ab^{x_{2}}} \\\\\implies \frac{y_{_1}}{y_{_2}} = \frac{b^{x_{1}}}{b^{x_{2}}} \\\\\implies \frac{y_{_1}}{y_{_2}} = b^{(x_1-x_2)}\)
Given points : (4, 9) and (5, 34.2)
We have:
\(\frac{34.2}{9} = b^{(5-4)}\\\\\implies 3.8 = b\)
Writing the equation with x, y and b:
\(y = ab^x\\\\\implies 9 = a(3.8^4)\\\\a = \frac{9}{3.8^4} \\\\a = 0.043\)
a = 0.043
b = 3.8
When x = 6, y will be:
\(y = (0.043)(3.8^6)\\\\y = 128.47\)
This is not the y value in the question y = 59.4
Therefore (6, 59.4) does not lie on the graph h(x)
Your flight has been delayed: At Denver International Airport, 85% of recent flights have arrived on time. A sample of flights is studied. Round the probabilities to four decimal places. Part 1 of 4 (a) Find the probability that all of the flights were on time. The probability that all of the flights were on time is . Part 2 of 4 (b) Find the probability that exactly of the flights were on time. The probability that exactly of the flights were on time is . Part 3 of 4 (c) Find the probability that or more of the flights were on time. The probability that or more of the flights were on time is . Part 4 of 4 (d) Would it be unusual for or more of the flights to be on time
Answer:
a) \(P(X = n) = (0.85)^{n}\)
b) \(P(X = x) = C_{n,x}.(0.85)^{x}.(0.15)^{n-x}\)
c)
\(P(X \geq x) = P(X = x) + P(X = x+1) + ... + P(X = n)\)
For each value, we use
\(P(X = x) = C_{n,x}.(0.85)^{x}.(0.15)^{n-x}\)
d) If \(x > E(X) + \sqrt{V(X)}\), yes, otherwise no
Step-by-step explanation:
For each flight, there are only two possible outcomes. Either it arrived on time, or it did not. Flights are independent. This means that we use the binomial probability distribution 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.
\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)
In which \(C_{n,x}\) is the number of different combinations of x objects from a set of n elements, given by the following formula.
\(C_{n,x} = \frac{n!}{x!(n-x)!}\)
And p is the probability of X happening.
The expected value of the binomial distribution is:
\(E(X) = np\)
The standard deviation of the binomial distribution is:
\(\sqrt{V(X)} = \sqrt{np(1-p)}\)
A measure is said to unusual if it is more than 2.5 standard deviations from the mean.
85% of recent flights have arrived on time.
This means that \(p = 0.85\)
(a) Find the probability that all of the flights were on time.
This is \(P(X = n)\), in which n is the size of the sample studied.
\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)
\(P(X = n) = C_{n,n}.(0.85)^{n}.(0.15)^{n-n}\)
\(P(X = n) = (0.85)^{n}\)
(b) Find the probability that exactly x of the flights were on time.
Exactly x of the flights: So
\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)
\(P(X = x) = C_{n,x}.(0.85)^{x}.(0.15)^{n-x}\)
(c) Find the probability that x or more of the flights were on time.
This is
\(P(X \geq x) = P(X = x) + P(X = x+1) + ... + P(X = n)\)
For each value, we use
\(P(X = x) = C_{n,x}.(0.85)^{x}.(0.15)^{n-x}\)
(d) Would it be unusual for x or more of the flights to be on time?
If \(x > E(X) + \sqrt{V(X)}\), yes, otherwise no
In ΔGHI, h = 300 inches, ∠G=30° and ∠H=29°. Find the length of i, to the nearest inch.
Answer:
i ≈ 530 inches (to the nearest inch)Step-by-step explanation:
Check the diagram in the attachment. Using sin rule to get the length of i.
According to the rule \(\frac{g}{sinG} = \frac{h}{sinH} = \frac{i}{sinI}\\\)
Given h = 300 inches, ∠G=30° and ∠H=29°; we can use the relationship below to get length of i;
\(\frac{h}{sinH} = \frac{i}{sinI}\\\)... 1
Since sum of angle in a triangle is 180°, then ∠G+∠H+∠I = 180°
30°+29°+∠I = 180°
∠I = 180°-(30°+29°)
∠I = 180°-59°
∠I = 121°
Applying equation 1;
\(\frac{300}{sin29^{0} } = \frac{i}{sin121^{0} }\\\\300sin121^{0} = iSin29^{0}\\ i = \frac{300sin121^{0}}{Sin29^{0}} \\i = \frac{257.15}{0.4848} \\i = 530.425inches\\\)
i ≈ 530 inches (to the nearest inch)
Triangles Q R S and X Y Z are shown. Angles Q S R and X Z Y are right angles. Angles Q R S and X Y Z are congruent. The length of Y Z is 9, the length of X Z is 12, and the length of hypotenuse X Y is 15.
Given △QRS ~ △XYZ, what is the value of tan(Q)?
Three-fifths
Three-fourths
Four-fifths
Answer:three-fourths
Step-by-step explanation:
because my dad said it was right
(3,4) m=0
Formula
Y-y=m(x-x1)
Answer:
\(y1 = 4 \\ x1 = 3\)
\(y - y1 = m(x - x1)\)
\(y - 4 = 0(x - 3)\)
\(y - 4 = 0\)
\(y = 4\)
Angle TLN equals (3X -18)°, angle MZQ equals (5X +14)° and
For the given figure, x = 23° and y = 129°
Parallel lines:
Parallel lines are lines that always stay the same distance apart and never meet.
Transversal line :
A transversal is a line that crosses two or more other lines.
given,
∠TLN = (3x - 18)°
∠MZQ = (5x + 14)°
∠NLM = y°
Now,
∠MZP + ∠MZQ = 180° (Linear Pair)
∠MZP = 180° - ∠MZQ ...........(I)
again,
∠NLM + ∠TLN =180° ...........(II) (Linear Pair)
As, ∠TLN = ∠MZP (Corresponding Angle)
(3x - 18)° = 180° - ∠MZQ
(3x - 18)° = 180° - (5x + 14)°
3x + 5x = 180° - 14° + 18°
8x = 184°
x = 184 / 8
x = 23°
From (II),
∠NLM + ∠TLN =180°
y° + 3x - 18° = 180°
y = 180 - 3x + 18
= 180 - 3* 23 + 18
= 180 - 69 +18
y = 129°
For the given figure,
x = 23° and y = 129°
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Graph the inequality.
x > 4
Answer:
Step-by-step explanation:
-p•(51+z)=dz+84
Please help.
Answer:
(-84 - 51p)/(d + p)
Hope it helped
Help me! Fill in the missing number:
PLEASE ANSWER QUESTION
Answer:
1.) y=-2x+4
2.) y=1x-1
Step-by-step explanation yw
Which ratio is equivalent to 4:5?
10
15
4
10
16.
20
15
풍
Answer:
16;20
Step-by-step explanation;
you can both multiply by 4
4 x 4 = 16 and 5 x 4 = 20.
what is the slope of the line that contains the points (13,-2) and (3,-2)? Be sure to simply result
Answer:
0
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-2-(-2))/(3-13)
m=(-2+2)/-10
m=0/-10
m=0
50 x 1000
pls reply guys
Answer:
50,000 fifty-thousand
Step-by-step explanation:
Just use a calculator
log 16^4=x The answer is 1/2 but I don't know how to solve. Please help me
Answer:
\(x = \frac{1}{2} \)
The step by step explanation is attached to the answer.
hope this helps
brainliest appreciated
good luck! have a nice day!
PLEASE CAN SOMEONE HELP!
Area of base 6π in² has the greatest surface area.
What is Mathematical expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
3 cylinders have same length of height.
We know that;
Largest the radius of base of cone has largest surface area of cylinder.
Hence, By all option;
⇒ Area of base 6π in² has the greatest surface area.
Thus, Area of base 6π in² has the greatest surface area.
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2. (10 points) Six hundred paving stones were examined for cracks, and 15 were found to be cracked. The same 600 stones were then examined for discoloration, and 27 were found to be discolored. A total of 562 stones were neither cracked nor discolored. One of the 600 stones is selected at random. For each of the following events, draw the event space for the scenario described above and shade in the area representing the event. Use it to calculate the probability of the event. a. The block is cracked, discolored, or both. b. The block is both cracked and discolored. c. The block is cracked but not discolored.
A) The probability of the event that the block is cracked is; 0.025
The probability of the event that the block is discolored is; 0.045.
B) The probability of the event that the block is both cracked and discolored is; 0.025
C) The probability of the event that the block is cracked but not discolored is; 0.06178
How to find the Probability?We are given;
15 stones were cracked
27 stones were discolored
562 stones were neither cracked nor discolored
Total number of stones =600.
A) Find the probability that it is cracked, discolored or both;
Favorable condition for one is cracked = 15
Thus;
P(crack) = 15/600
P(crack) = 0.025
Favorable condition for discolored = 27
P(discolored) = 27/600
P(discolored) = 0.045
B) Favorable condition for both crack and discolored = 15
P(crack & discolored) = 15/600
P(crack & discolored) = 0.025
C) Favorable condition for cracked but not discolored means that the total number of stones will be 573. Thus;
P(cracked, not discolored) = 15/573
P(cracked, not discolored) = 0.06178
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please help this ones pretty easy just not sure how to do it
Answer:
-8i + 51
Step-by-step explanation:
(3+5i)(2-9i)
6+10i-18i-45i²
**i² = -1.
6-8i + -45(-1)
= -8i + 51
Use the diagram to complete the statement.-74A 3G B530)45°C С412/F9ECF=
From the triangle CDF, we can see that it is an isosceles triangle.
\(\begin{gathered} \\ \sin \text{ 45 =}\frac{CF}{12\sqrt[]{2}} \\ \frac{1}{\sqrt[]{2}}\text{ = }\frac{CF}{12\sqrt[]{2}} \\ CF\text{ = 12} \end{gathered}\)