Answer: its 4.6
just took test
The y-coordinate for point A is approximately 4.6.
Explanation:To find the y-coordinate of point A, we can use the Pythagorean theorem since we know the x-coordinate (-2) and the radius of the circle (5). The Pythagorean theorem states that the square of the hypotenuse is equal to the sum of the squares of the other two sides. In this case, the hypotenuse is the radius of the circle and the other two sides are the x and y coordinates. So we have:
x^2 + y^2 = r^2
Substituting the given values, we get:
(-2)^2 + y^2 = 5^2
Simplifying the equation, we have:
4 + y^2 = 25
y^2 = 21
Taking the square root of both sides, we get:
y ≈ ± 4.6
Since the point A lies in the upper half of the circle, the y-coordinate is positive. So the nearest tenth of the y-coordinate for point A is 4.6.
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Janet is 3 yrs older than her sister julie. Janet brother is eight yrs younger than their sister julie. The sum of all their ages is 55 yrs
Janet: x + 3
Julie: x
brother: x - 8
Janet + Julie + brother = sum
x + 3 + x + x - 8 = 55
3x - 5 = 55
+5 +5
3x = 60
[tex]\frac{3x}{3} = \frac{60}{3}[/tex]
x = 20
Janet: x + 3 ⇒ (20) + 3 = 23
brother: x - 8 ⇒ (20) - 8 = 12
Answer: Janet=23, Julie=20, brother=12
solution for C and how to solve 5c-6=4-3c
Answer,
C = 5/4Explanation,
Add 6 to both sides,
5c - 6 + 6 = 4 - 3c + 6
Simplify,
5c = -3c + 10
Add 3c to both sides,
5c + 3c = 3c + 10 + 3c
Simplify,
8c = 10
Divide both sides by 8,
8c/8 = 10/8
Simplify,
C = 5/4
Hope this helps :-)
QUICK HELP!! Will give brainliest!! Thank you
3 is the y-intercept
and -6 is the x-intercept
usually they don't have y behind the y-intercept so usually its the one that doesn't have x, they usually only put x.
The correct answer to this equation is X-inter=(-3.15,0) and Y-inter=(0,6.3) and heres why:
To solve this problem we must isolate the y-variable and then graph. Here are the steps to do that
[tex]-6x+3y=18.9[/tex] Now add 6x to both sides to get:
[tex]3y=18.9+6x[/tex] Next we divide both sides by the 3 next to the "y" to get:[tex]y=\frac{18.9+6x}{3}\\[/tex]
Then you can simply graph this new equation to find your points. There is also another way to do it without graphing but it will take a lot more explaining and this way is faster.
If you find out that my answer is wrong, please tell me and I promise I will come back and rework my math. Thanks :)
The equation 7^2=a^3 shows the relationship between a planet’s orbital period, T, and the planet’s mean distance from the sun, A, in astronomical units, AU. If planet Y is k times the mean distance from the sun as planet X, by what factor is the orbital period increased?
Final answer:
Explanation of how the orbital period increases when a planet's distance from the sun is increased using Kepler's third law.
Explanation:
The factor by which the orbital period is increased when planet Y is k times the mean distance from the sun as planet X can be calculated using Kepler's third law:
Given the equation 72 = a3, the relationship between a planet's orbital period T and mean distance from the sun A in AU is established.
If planet Y is k times the mean distance from the sun as planet X, the orbital period is increased by k1.5 times due to Kepler's third law.
When a third of a number is subtracted from a half of the same number, 60 is the result. Find the number
the answer is 360 because if you take a third you will have 120 then if you take half of that then you get 60
Using a system of equations, it is found that the number is of -360.
What is a system of equations?A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem:
The number is n.A third of the number is n/3.Half the number is n/2.Hence:
[tex]\frac{n}{3} - \frac{n}{2} = 60[/tex]
[tex]\frac{2n - 3n}{6} = 60[/tex]
[tex]-n = 360[/tex]
[tex]n = -360[/tex]
The number is of -360.
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3 hours 20 minutes + 1 hour 48 minutes =___ days
zero days, 3 hours + 20 min + 1 hour + 48 min = 308 min which is about 5 hours.
3 hours 20 minutes + 1 hour 48 minutes = 0.2139 days
Let’s calculate the total time in hours and minutes:
Add the hours: [tex]3 \text{ hours} + 1 \text{ hour} = 4 \text{ hours}[/tex]Add the minutes: [tex]20 \text{ minutes} + 48 \text{ minutes} = 68 \text{ minutes}[/tex]Now, let’s convert the total time to days:
1 day = 24 hours1 hour = 60 minutesFirst, convert the minutes to hours:
[tex]68 \text{ minutes} = \frac{68}{60} \text{ hours} = 1.1333 \text{ hours}[/tex]
Next, add the converted hours to the original 4 hours:
[tex]4 \text{ hours} + 1.1333 \text{ hours} = 5.1333 \text{ hours}[/tex]
Now, divide the total hours by 24 to find the equivalent days:
[tex]5.1333 \text{ hours} \div 24 = 0.2139 \text{ days}[/tex]
Therefore, 3 hours 20 minutes + 1 hour 48 minutes equals approximately 0.2139 days
Compute the permutations and combinations. 4 P 4
1
4
24
[tex]nPk=\dfrac{n!}{(n-k)!}\\\\4P$=\dfrac{4!}{(4-4)!}=\dfrac{4!}{0!}=\dfrac{24}{1}=24[/tex]
Final answer:
The number of permutations for 4 P 4 is calculated as 4! (four-factorial), which is 4 x 3 x 2 x 1, resulting in 24 different permutations.
Explanation:
The question asks for the number of permutations for 4 P 4, which is the number of ways to arrange 4 unique items. When dealing with permutations, if we want to select r items from a set of n items, the formula for permutations is given by nPr = n! / (n-r)!. In this case, both n and r are equal to 4, so we would calculate 4P4 as 4! / (4-4)! which simplifies to 4! / 0!. Because 0! is defined to be equal to 1, the calculation becomes 4! Therefore, 4 P 4 equals 24.
The average score that Kat gets on her exams is proportional to the amount of time she studies for the exam. Kat scored a 75 after studying for 15 hours. How many hours should she study for the next exam if she needs a 90 to pass the class?
Kat's study score rate is 5 points per hour. To achieve a score of 90, given her current study rate, she should spend 18 hours studying for the exam.
Explanation:Since the average score Kat gets on her exams is proportional to the amount of time she studies, her score is a measure of her rate of study. This 'rate' can be computed as the score divided by the time she studies. She got a 75 after studying for 15 hours, so her rate is 75/15 = 5 - this means she scores 5 points per hour of studying.
To figure out how many hours she needs to study to score a 90 in the next exam, divide the score she needs (90) by her rate (5). So, 90/5 = 18. Thus, Kat needs to study for 18 hours to achieve a score of 90 on her next exam.
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In which section of the number line is √5?
We know that [tex]\sqrt(4)[/tex] and [tex]\sqrt(9)[/tex] are 2 and 3 respectively. Therefore, [tex]/sqrt(5)[/tex] is between 2 and 3, approximately 2.2.
Carol is given a 10% pay decrease. Her new wage is £306 per week. What would be her weekly wage if, instead, she had received a 10% pay increase?
the answer would be 374.00
the original value before any increase or decrease is 340.00
so...
340.00 X 1.10 = 374.00
Answer:
New Wage after 10% increase =£374
Step-by-step explanation:
Let us assume Carol's initial weekly wage be £ x
Now there is 10% decrease in weekly wage
10 % of weekly wage = 10 % of x
= [tex]\frac{10x}{100} = 0.1x[/tex]
New wage after 10% decrease = initial weekly wage - 10% of x
= [tex]x- 0.1x = 0.9x[/tex]
It is given that new weekly wage is £ 306
so we equate £306 and 0.9x , so we have
[tex]0.9x=306[/tex]
[tex]x=\frac{306}{0.9}[/tex] ( divide both sides by 0.9)
[tex]x= 340[/tex]
So we got
Initial weekly wages = £ 340
Now Let us find weekly wage when there is 10% increase,
10% of initial weekly wage = [tex]10% of 340[/tex]
=[tex]\frac{10}{100}[/tex]×[tex]340[/tex]
= [tex] 34[/tex]
New Wage after 10% increase = [tex]340+34[/tex]
=£ 374
Jon ate too many holiday cookies and gained 2.2 kilograms in December. Then he went on a diet and lost 1.5 kilograms in January. Then lost another 3.7 kilograms in February. Jon wants to know the total change in his weight was over these three months. Which of the following equations matches the situation above
Answer:
Jon lost a total of 3 kilograms in these 3 months.
Step-by-step explanation:
Weight that Jon gained in December = 2.2 kilograms
Weight that Jon lost in January = 1.5 kilograms
Weight that Jon lost in February = 3.7 kilograms
Overall Change in his weight = Total Weight he gained - Total weight he Lost
Total weight he gained is 2.2 kilograms as he only gained weight in December. Total weight he lost will be sum of weights he lost in January and February.
So, total weight Jon lost = 1.5 + 3.7 = 5.2 kilograms
Thus,
Total change in Jon's Weight = 2.2 - 5.2 = -3.0 kilograms
This shows that Jon lost a total of 3 kilograms in these 3 months.
Conclusion:
The statement that best describe the total change in his weight is: Jon lost a total of 3 kilograms in these 3 months
Answer:
2.2+(-1.5)+(-3.7)=?
Step-by-step explanation:
2^x . 3^x =200 solve the x
[tex]2^x\cdot 3^x=200\\\\(2\cdot3)^x =200\\\\6^x=200\\\\x=\log_6200\\\\x=\dfrac{\ln 200}{\ln 6}\\\\x\approx2.96[/tex]
1348 rounding to the nearest thousand
1000 would be the answer
The rounding number to the nearest thousand will be 1,000.
What is Rounding number?
To making a number simpler but keeping its value close to what it was, is called Rounding.
Given that;
The number is;
1348
Now, To round a number to the nearest thousand, look at the hundreds digit. If the hundreds digit is 5 or more, then round up.
If the hundredth digit is 4 or less, then round down.
So, Here the hundreds digit is 3, which is less than 5.
Then, we round down.
Thus, The rounding number = 1,000
So, The rounding number to the nearest thousand will be 1,000.
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The radius of a sphere is increasing at a rate of 2 mm/s. How fast is the volume increasing when the diameter is 100 mm?
Answer:
Volume increasing rate = [tex]62831.85 mm^3/s[/tex]
Explanation:
We rate of change of radius of sphere, [tex]\frac{dr}{dt} =2mm/s[/tex]
Diameter of sphere = 100 mm
Radius of sphere = 50 mm
Volume of sphere, V = [tex]\frac{4}{3} \pi r^3[/tex]
Rate of change of volume = [tex]\frac{dV}{dt}[/tex]
[tex]\frac{dV}{dt}=\frac{d}{dt} (\frac{4}{3} \pi r^3)=\frac{4}{3} \pi\frac{d}{dt}(r^3)=\frac{4}{3} \pi*3r^2*\frac{dr}{dt}[/tex]
Substituting known values
[tex]\frac{dV}{dt}= \frac{4}{3}* \pi*3*50^2*2=62831.85 mm^3/s[/tex]
Volume increasing rate = [tex]62831.85 mm^3/s[/tex]
What percent of 29 is 3?
Hello!
The answer should be 0.34%
Explanation: First you had to start by representing by the percent with a variable by the x%. Then you can also used x% to create an algebraic expression. It gave us 29%*x=3. Next solve for x by dividing by 29 from both sides. It gave us 29x÷29=3÷29, or x≈0.1034. Then convert 0.1034 into a percent by multiplying by the decimal by 100%. And it gave us x≈0.1034*100%, and the answer is x≈10.34% is the right answer. Hope this helps! And thank you for posting your question at here on Brainly. Have a great day! -Charlie
The percentage of 29 that is equal to 3 is 10.34% calculated by making percentage the subject of the equation.
Understanding How to Solve PercentageTo find the percentage of one number in relation to another, you can use the following formula:
(Percentage / 100) * Number = Part
In this case, we want to find what percent 3 is of 29.
Let's substitute the values into the formula:
(Percentage / 100) * 29 = 3
To isolate the percentage, we divide both sides of the equation by 29:
(Percentage / 100) = 3 / 29
To find the percentage, we multiply both sides by 100:
Percentage = (3 / 29) * 100
Calculating this expression:
Percentage = 10.34
Therefore, 3 is approximately 10.34% of 29.
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Which is the correct formula to find the distance between two points (a, b) and (c, d)? Please Answer quickly! Thank you!
Answer:
Use the distance formula. Result: sqrt [ (a-c)^2 + (b-d)^2 ]
Step-by-step explanation:
distance = d = sqrt [ (a-c)^2 + (b-d)^2 ]
Answer:
[tex]d=\sqrt{(c-a)^2+(d-b)^2}[/tex]
Step-by-step explanation:
We are given two points (a, b) and (c, d)
We need to find the distance between two points.
It is coordinate of two points. Using coordinate formula of distance.
[tex]d=\sqtt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
where,
[tex]x_2\rightarrow c[/tex]
[tex]x_1\rightarrow a[/tex]
[tex]y_2\rightarrow d[/tex]
[tex]y_1\rightarrow b[/tex]
Substitute into formula
Distance between two points is
[tex]d=\sqrt{(c-a)^2+(d-b)^2}[/tex]
Hence, The formula of distance between two points (a, b) and (c, d) is [tex]d=\sqrt{(c-a)^2+(d-b)^2}[/tex]
The quotient of 14 and 7
It's 21. You just divide one by the other.
The quotient is 2.
A quotient is the result of division. In division, the dividend Divided by the Divisor = the Quotient, in your question 14 is the Dividend and 7 is the Divisor,
Hope this Helps :D
will a rectangular piece of wrapping paper that is 20 in. by 15 in cover a shirt gift box that is 12inches long, 8in wide, and 3inches. Deep Explain?
First
Multiply 20in. by 15in.
Second
Multiply 12 by 8
Third
Multiply the sum of 8 and 12 to 3
The answer would be yes because the sum of 12, 8, and 3 is 288 and 20 by 15 is 300 so you'd have some left over.
Yes, the rectangular piece of wrapping paper can cover the shirt gift box.
Explanation:To determine if the rectangular piece of wrapping paper can cover the shirt gift box, we need to compare the dimensions of the paper to the dimensions of the box.
The dimensions of the paper are 20 in. by 15 in. The dimensions of the box are 12 in. long, 8 in. wide, and 3 in. deep.
To cover the box completely, the paper needs to have enough surface area to cover the top and all four sides of the box.
Since the dimensions of the paper are greater than or equal to the corresponding dimensions of the box, the rectangular piece of wrapping paper can cover the shirt gift box.
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32%
of adults say cashews are their favorite kind of nut. You randomly select 12 adults and ask each to name his or her favorite nut. Find the probability that the number who say cashews are their favorite nut is (a) exactly three, (b) at least four, and (c) at most two. If convenient, use technology to find the probabilities.
To solve this problem, one would need to use the binomial probability formula, substituting different values of 'x' into the formula depending on the requirement of the question. To calculate probabilities for specific numbers of people saying cashews are their favorite, substitute those numbers into the formula and solve, adding appropriate probabilities together for situations with ranges of people.
Explanation:The subject of this question is probability. We can use the binomial probability formula, which is P(X=x) = C(n, x) * (p^x) * ((1-p)^(n-x)), where 'p' is the probability of success, 'n' is the number of trials, and 'x' is the number of successful outcomes.
(a) For exactly 3 people loving cashews, substitute x=3, p=0.32 (32%), and n=12 into the formula to calculate the probability.
(b) For at least 4 people loving cashews, calculate the probability for x=4, x=5,....x=12 and add these probabilities together as this is an 'or' condition.
(c) For 2 or fewer people loving cashews, calculate the probability for x=0, x=1, x=2 and add them, because it says 'at most two' which includes 0 to 2 people.
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what is
g+114.78=152.98
A g=267.76 B g=28.2 C g=38.2
g = 152.98 - 114.78 = 38.2
(12 ÷ 3 + 6) -4 Math help
Answer:
Well, we have to remember that we must use PEMDAS, or the order of operations, to solve the expression.
Therefore, we must first either divide or multiply anything that is inside of the parentheses. (In this case divide)
[tex]12/3=4[/tex]
[tex](4+6)-4[/tex]
Now solve what remains in the parentheses.
[tex]4+6=10[/tex]
[tex]10-4[/tex]
Finally, subtract 4 from 10 and get your answer:
6
Hello!
Answer:⇒⇒⇒=6
Step-by-step explanation:
This question it should be used pemdas.
Hint:
P-parenthesis (12÷3+6)=4+6=10
E-exponents 8²=8*8=64
M-multiply 21*2=42
D-divide 20÷5=4
A-add 5+5=10
S-subtract 30-10=20
First calculate with parenthesis.
[tex](12\div3+6)[/tex]
Then multiply and divide from (left to right).
[tex]12\div3=4[/tex]
Add and subtract from (left to right).
[tex]4+6=10[/tex]
[tex]10-4=6[/tex]
Hope this helps!
Thank you for posting your question at here on brainly.
Have a great day!
-Charlie
Factorise completely (2x+1)^2 -(x-1)^2
To factorize the expression completely, we use the difference of squares formula and simplify the expression to get 6x.
Explanation:The given expression is (2x+1)^2 -(x-1)^2. To factorize it completely, we can use the difference of squares formula, which states that (a^2 - b^2) = (a + b)(a - b). Applying this formula, we have:
(2x+1)^2 -(x-1)^2 = [(2x+1) + (x-1)][(2x+1) - (x-1)]
Simplifying further, we get:
(2x+1+x-1)(2x+1-x+1) = (3x)(2) = 6x.
Work out (3.6 x 10^-5) ÷ (1.8 x 10^2) give your answer in standard form
Answer:
2e-7 or 2x10^-7
Step-by-step explanation: correct me if i'm wrong
2(x+14) + 2(x) Distributive Property
2(x+14) + 2(x) after using the distributive property will be 2x+28+2x. What I did to find this is multiply the number outside of the opening parentheses by everything inside of the pair of parentheses.
4(px+1)=64 the value of x in terms of p is
[tex]4(px+1)=64\qquad|\text{divide both sides by 4}\\\\px+1=16\qquad|\text{subtract 1 from both sides}\\\\px=15\qquad|\text{divide both sides by}\ p\neq0\\\\\boxed{x=\dfrac{15}{p}}[/tex]
50 apples cost $25 how much would it cost for 75 apples
It would cost $37.50.
a canoe travels 3 3/4 kilometers in 3/5 of an hour. what is the average of the canoe, in kilometers per hour ?
Hello,
The speed was .67 mph
Hope this helps!
Answer:
6 1/4
Step-by-step explanation:
Use the photo to answer the question
D. the final one, the one you currently have answered is the correct one, this is because a parallelogram, like this one, requires that the triangles on either side must be congruent in order for this to be true.
Triangles BPA and DPC are congruent, which implies that opposite sides AB and CD are parallel, thus making quadrilateral ABCD a parallelogram.
The statement Triangles BPA and DPC are congruent is used to prove that quadrilateral ABCD is a parallelogram.
Given that diagonals AC and BD bisect each other, we have:
[tex]$\angle BAP = \angle CDP$[/tex] (vertically opposite angles)
[tex]$AP = CP$[/tex] and BP = DP (given)
Therefore, triangles BPA and DPC are congruent by SAS (side-angle-side) congruence. This means that [tex]$\angle ABP = \angle CDP$[/tex] and [tex]\angle BPA = \angle DPC$.[/tex]
Since [tex]$\angle ABP$[/tex] and [tex]$\angle CDP$[/tex] are alternate interior angles formed by transversal BD intersecting parallel lines AB and CD, we have:
AB \parallel CD
Similarly, since [tex]$\angle BPA$[/tex] and [tex]$\angle DPC$[/tex] are alternate interior angles formed by transversal AC intersecting parallel lines AB and CD, we have:
AB \parallel CD
Therefore, quadrilateral ABCD is a parallelogram.
Proof:**
1. Given:[tex]$\angle BAP = \angle CDP$ and $AP = CP$ and $BP = DP$[/tex]
2. Prove:[tex]$AB \parallel CD$[/tex]
SAS Congruence**
1.[tex]$\triangle BAP \cong \triangle DPC$ (SAS)[/tex]
Alternate Interior Angles**
2. [tex]$\angle ABP = \angle CDP$[/tex](alternate interior angles)
3. [tex]$\angle BPA = \angle DPC$[/tex] (alternate interior angles)
Therefore, $AB \parallel CD.
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HURRY I'M TIMED!!!!! What kind of dot would be appropriate for the graph of the inequality t ≤ -3?
open
closed
It would be a closed circle or "dot" since it is a less than or equal to sign.
The temperature in degrees Kelvin is 273 degrees more than the temperature in degrees Celsius. Use the formula C=59(F−32) to write a formula for the temperature in degrees Fahrenheit F in terms of the temperature in degrees Kelvin K.
Answer:
F = (9/5) (K - 273) + 32
Step-by-step explanation:
The problems asks to use the formula C=59(F−32), but check that this is not correct, it should be:
[tex]C = \frac{5}{9} (F - 32)[/tex]
We also know that temperature in degrees Kelvin K is 273 more than in degrees Celsius C, so we can write this as:
K = C + 273
The question asks to write a formula for the temperature in degrees Fahrenheit F in terms of the temperature in degrees Kelvin K.
So first lets isolate F in the first formula
[tex]C = \frac{5}{9} (F - 32)[/tex]
[tex]C = \frac{5}{9} (F - 32)\\C * \frac{9}{5} = \frac{5}{9}* \frac{9}{5}(F - 32)\\C * \frac{9}{5} = F - 32\\C * \frac{9}{5} +32 = F - 32 +32\\F = \frac{9}{5} C +32[/tex]
Now to make the formula in terms of K, lets first write C in terms of K:
K = C + 273
C = K -273
And now we can replace C in the F formula to write it in terms of K:
F = (9/5) (K - 273) + 32