Answer:
(2,1) is a solution
Step-by-step explanation:
y = 3x-5
Substitute the point into the equation and see if it is true
1 = 3(2)-5
1 = 6-5
1=1
This is true so the point is a solution
what is negative eight plus four
Answer:
-4
Step-by-step explanation:
- - - - - - - -
+ + + +
4 negatives cancel out and leave you with -4
The answers is -8 + 4 = -4
In circle B, AB = 15 and mAC = 36º.
Find the length of minor arc AC.
The length of minor arc AC is calculated by finding the proportion of the total circumference that the arc's angle represents. In this case, the length of minor arc AC is 3π units.
Explanation:In circle geometry, the length of an arc (minor arc AC in this case) is proportional to the measure of its central angle. By knowing the central angle and the circumference of the circle, we can calculate the length of the arc. The formula for the circumference of a circle is 2πr, where r is the radius. In this case, AB is the radius, which equals to 15 units. So the circumference of the circle would be 2π * 15 = 30π units.
Now, the measure of the entire circle in terms of degrees is 360º. The measure of AC is given as 36º. Hence, minor arc AC is 36º out of the total 360º, which is (36/360) = 1/10. Therefore, the length of minor arc AC would be 1/10 of the total circumference.
Calculating the length of minor arc AC would be = 1/10 * 30π = 3π units.
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The graph of y=g(x) is shown. Draw the graph of =y−2g(x)-1
The graph of y - 2g(x) - 1 is obtained by applying vertical stretching, reflection, and vertical translation to the original function g(x). The transformed points are (0, -1), (-2, -9), and (4, -5).
To draw the graph of y - 2g(x) - 1, we first need to understand the transformations applied to the original function g(x). The given coordinates (0, 0), (-2, -4), and (4, -2) correspond to points on the graph of g(x).
Now, consider the expression y - 2g(x) - 1. This involves subtracting twice the values of g(x) from y and then subtracting 1. This process suggests vertical stretching, reflection, and vertical translation.
Starting with the points on g(x), let's apply these transformations:
Vertical Stretching: The factor of 2 before g(x) indicates vertical stretching by a factor of 2.
Reflection: The subtraction of 2g(x) reflects the graph over the x-axis.
Vertical Translation: Finally, subtracting 1 shifts the graph downward by 1 unit.
Applying these transformations to the given points, we get the transformed coordinates: (0, -1), (-2, -9), and (4, -5).
Now, plot these transformed points on the graph. Connect the points smoothly to represent the new function y - 2g(x) - 1.
USE THE ATTACHED IMAGE BELOW TO HELP DO MY HOMEWORK PLEASE
!!!!
Part A
Sue
A = P*(1+r/n)^(n*t) is the compound interest formula
A = 2300*(1+0.024/1)^(1*3)
A = 2469.6061952
A = 2469.61
A - P = 2469.61-2300 = 169.61
Sue gets 169.61 pounds in interest-----------
Bill
A = P*(1+r/n)^(n*t)
A = 1800*(1+0.034/1)^(1*3)
A = 1989.9131472
A = 1989.91
A-P = 1989.91-1800 = 189.91
Bill earns 189.91 pounds in interestBill has earned more in interest.
=====================================================
Part B
By year 2, Bill has 1924.48 pounds in his account based on the work shown below
A = P*(1+r/n)^(n*t)
A = 1800*(1+0.034/1)^(1*2)
A = 1924.4808
A = 1924.48
This amount is the new deposit, so to speak, when we change the interest rate. Now r = 0.034 changes to r = 0.04. We only go for one year so t = 1
A = P*(1+r/n)^(n*t)
A = 1924.48*(1+0.04/1)^(1*1)
A = 2001.4592
A = 2001.46
Bill has 2001.46 pounds in his account after 3 years if the interest rate for the 1234 account changes to 4% in the third year.
Now subtract off the original amount Bill deposited to get
2001.46-1800 = 201.46
For this scenario, Bill earns 201.46 pounds in interest.
Therefore, Bill has earned the most interest for both cases of the interest rate staying at 3.4% or changing to 4% for that third year.
Answer: BillThe Mariana Trench in The Pacific Ocean is about 36,201 feet deep. Based on these data how many feet deeper is the marina trench than the Puerto Rico?
Answer:
The answer is 27,493 Puerto Rico Trench Depth Deepest Point In the Atlantic Ocean
Step-by-step explanation:
A train leaves at 07.34 and arrives at its destination at 08.16. How long did it take to get to its destination
Answer:
El tren tardo 0.82 minutos .
To calculate the travel time of the train, we subtract the departure time (07:34) from the arrival time (08:16), which equals 42 minutes. Thus, the duration of the train's journey is 42 minutes.
Calculating Travel Time:
The given problem is a straightforward task of subtracting the time the train left from the time it arrived at its destination. The train leaves at 07:34 and arrives at 08:16. To find out how long the journey took, we simply calculate the difference in time.
Start time: 07:34Arrival time: 08:16Duration: Arrival timeTo perform the calculation, convert the times into a 24-hour format if they are not already. Since both times are in the morning, we just need to calculate the minutes. From 34 minutes past the hour to 60 minutes past the hour is 26 minutes. Then, there are an additional 16 minutes from 08:00 to 08:16. Add these two segments together to find the total duration of the trip.
The total duration is 26 minutes + 16 minutes = 42 minutes.
Therefore, it took the train 42 minutes to reach its destination.
A composite figure has a radius of 10cm. What is the area of this composite figure. Use 3.14
Answer:
314
Step-by-step explanation:
Answer:
314
Step-by-step explanation:
I got it right.
someone help ill give a brainliest
Answer:
[tex]x=-2[/tex]
Step-by-step explanation:
Switch sides
[tex]28+7x =14[/tex]
Subtract 28 from both sides
[tex]28+7-28=14-28[/tex]
Simplify
[tex]7x=-14[/tex]
Divide both sides by 7
[tex]\frac{7x}{7} = \frac{-14}{7}[/tex]
Simplify
[tex]x=-2[/tex]
PLEASEE HELP ME! WILL MARK BRAINLIEST!!
Marissa is painting her rectangular patio, with the exception of a bench that does not need to be painted: rectangle with a length of x plus 20 and width of x plus 10 with a rectangle in the bottom right corner labeled bench that has a length of 6 and width of 2 Write an equation to determine the area, A, of the patio that will be painted.
A. A = (x + 20)(x + 10) + 12
B. A = (x + 20)(x + 10) − 12
C. A = (x + 26)(x + 12)
D. A = (x + 14)(x + 8)
Answer:
B. A = (x + 20)(x + 10) - 12
Step-by-step explanation:
please kindly check the attached file for explanation
I NEED HELP ASAP IM BEING TIMED 5 MIN LEFT PLZZZZZZ HELP
Answer:
Step-by-step explanation:
on the number line your starting point is 6 then go back 9 and you will get -3
Suppose you flip a coin and spin a spinner that is divided into 8 equal regions. Of the 8 equal regions, 3 are red, 4 are black and 1 green. What is the probability of "tails" on the coin, and the spinner landing on red?
Answer:
There is a 1/2 chance of getting tails on the coin and there is 3/8 chance of the spinner landing on red. hope this helps
Final answer:
To find the probability of "tails" on the coin, and the spinner landing on red, you should multiply the probability of getting tails (0.5) by the probability of landing on red (0.375), resulting in 0.1875 or 18.75%
Explanation:
The probability of a particular outcome in a compound event (two or more independent events happening together) is the product of the probabilities of the individual events. Tossing a coin has two possible outcomes: heads or tails, each with a probability of 0.5. Spinning a spinner with 8 equal regions, where 3 are red, gives a probability of landing on red as 3 out of 8, which simplifies to 0.375.
Therefore, the probability of getting "tails" on the coin and the spinner landing on red can be calculated by multiplying the probability of getting tails on the coin (0.5) by the probability of the spinner landing on red (0.375):
Probability(Tails and Red) = Probability(Tails) × Probability(Red)
Probability(Tails and Red) = 0.5 × 0.375
Probability(Tails and Red) = 0.1875 or 18.75%
what is the area of the polygon
Answer:
Step-by-step explanation:
to find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides. Apothem = a segment that joins the polygon's center to the midpoint of any side that is perpendicular to that side.
If I make $200 a sec how long will it take to reach $20,000?
Answer:
100 seconds or 1 minute 40 seconds
Step-by-step explanation:
Answer:
100
Step-by-step explanation:
20,000 divided by 200
=100
Denise Robb's account statement shows a $210.94 unpaid balance. With a periodic rate of 1.85%, what is the finance charge? She had new purchases of $341.22. What is the new balance?
Answer:
A) 3.9 dollars
B) 126.38 dollars
Step-by-step explanation:
Given that Denise Robb's account statement shows a $210.94 unpaid balance. With a periodic rate of 1.85%
The finance charge = 1.85/100 × 210.94 = 3.9 dollars
If She had new purchases of $341.22. The new balance will be
341.22 - ( 210.94 + 3.9 )
126.38 dollars
Answer:
Periodic Rate: $3.902 or $3.9
New Balance: $556.06
Step-by-step explanation:
To get the periodic rate, do 1.85/100 to get 0.0185 and then multiply that by the unpaid balance ($210.94). This gets you $3.902 or $3.9.
to ge the new balance, add everything together to get $556.06
I can guarantee this is all correct
Find slope of 2x-4y + 7=0
Answer:
1/2
Step-by-step explanation:
The first thing you want to do is get y by itself. Subtract 7 from both sides:
2x-4y=-7
and then subtract 2x ( the goal is to make your equation look like this: y=mx+b):
-4y= -2x-7
Now, y is mostly isolated, all you have to do now is divide both sides by -4 in order for y to be completely by itself:
y=-2/-4x -7/-4
Simplify completely:
y=1/2x+7/4
Now you have your equation you can easily read it as y=mx+b.
** m is slope & b is the y-intercept**
So your slope would be: 1/2
A floor plan shows that the exterior of a room has dimensions 12 feet by 17 feet. If the area of the room measured from the interior is only 176 square feet, express the thickness of the surrounding walls in feet. (Assume that the walls have uniform thickness).
Answer:
The thickness of the walls is 0.5 feet.
Step-by-step explanation:
Let's call the thickness of each all by T.
The external dimensions of the room are 12 feet by 17 feet, and these values include thickness of 2 walls each, so the internal dimensions are (12-2T) and (17-2T).
If the internal area is 176, we have the equation:
(12-2T) * (17-2T) = 176
204 - 58T + 4T2 = 176
4T2 - 58T + 28 = 0
2T2 - 29T + 14 = 0
Using Bhaskara, we have:
Delta = (-29)^2 - 4*2*14 = 729
sqrt(D) = 27
T1 = (29 + 27)/4 = 14 feet
T2 = (29 - 27)/4 = 0.5 feet
As the first value is too big and would generate a negative side for the room, we have that the thickness of the walls is 0.5 feet.
Which expression is equivalent
to the one shown above?...
Answer:
A. [tex]7-3.25+4[/tex]
Step-by-step explanation:
Because [tex]5^2=5\times5=25[/tex], the expression [tex]7-3\times5^2+4[/tex] can be rewritten as [tex]7-3\times25+4[/tex].
What is the slope of the line that contains these points?
X | 45 | 49 | 53 | 57 |
Y | 10 | 5 | 0 | -5 |
SLOPE:____
Answer:
-5/4
Step-by-step explanation:
change in y/change in x
Help this is my last grade of the year and I need to do good
Answer:
The volume is 58.64.
I hope this helps you out :)
In the diagram shown, ΔABC is isosceles with AB = CB. Circle M is inscribed in ΔABC such that it is tangent at points D, E, and F. If the length of BF is twice the length of CF and the perimeter of ΔABC is 32 inches, then determine the length of side BC in inches.
Answer:
BC = 12 inches
Step-by-step explanation:
As the triangle is isosceles, we have that AE = CF and EB = FB
If we call AE by x, we have that EB = 2x, FB = 2x and CF = x
As E and D are points tangent to the circle, we have that AE = AD = x
As D and F are points tangent to the circle, we have that CD = CF = x
So if the perimeter is 32, we have that:
AE + EB + BF + FC + CD + DA = 32
x + 2x + 2x + x + x + x = 32
8x = 32
x = 4
The length of BC is equal BF + FC = 2x + x = 3x = 12 inches
Plz help I’m bad at math
Answer:
Branliest appreciated
3. x = 14 degrees
4. x = 17.5 degrees
Step-by-step explanation:
SO, The first question:
6x - 21 = 105
6x = 105 -21
6x = 84
x = 14
SO, The second question:
55 + 85 = 8x
140 = 8x
17.5 = x
The student body of a large university consists of 60% female students. A random sample of 8 students is selected. Refer to Exhibit 5-8. What is the probability that among the students in the sample at least 6 are male?
Answer:
0.0499
Step-by-step explanation:
This is a binomial probability function expressed as:
[tex]P(X=x)={n\choose x}p^x(1-p)^{n-x}\\\\[/tex]
Given that n =8, and p(male)=1-0.6=0.4, the probability of at least 6 being male is calculated as:
[tex]P(X=x)={n\choose x}p^x(1-p)^{n-x}\\\\P(X\geq 6)=P(X=6)+P(X=7)+P(X=8)\\\\={8\choose 6}0.4^6(0.6)^{2}+{8\choose 7}0.4^7(0.6)^{1}+{8\choose 8}0.4^8(0.6)^{0}\\\\=0.0413+0.0079+0.0007\\\\=0.0499[/tex]
Hence, the probability of at least 6 males is 0.0499
To find the probability of having at least 6 male students in a sample of 8 from a population where 40% are male, you need to calculate the sum of binomial probabilities for 6, 7, and 8 males.
Explanation:In this problem, we are dealing with the subject of binomial probabilities. Given that 40% of the population are male students (100% - 60% = 40%), we need to find the probability that at least 6 out of 8 randomly selected students are male.
This involves calculating the binomial probability for 6, 7, and 8 males, and then adding them together.
The formula for binomial probability is:
P(X=k) = C(n, k) * (p^k) * ((1-p)^(n-k))
Where P(X=k) is the probability of k successes in n trialsn is the number of trialsk is the number of successesp is the probability of success on each trialC(n, k) is the binomial coefficient or 'n choose k'Thus, the probability of getting at least 6 males would be calculated as the sum of the probabilities of getting exactly 6, 7, and 8 males. Before doing the calculations, keep in mind that we would use 0.4 for p (probability of picking a male student) and n=8 (the total number of sampled students).
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Luis made some trail mix. He mixed 4 2 3 cups of popcorn, 1 1 4 cups of peanuts, 1 1 3 cups of raisins, and 3 4 cup of sunflower seeds. He gave 5 of his friends an equal amount of trail mix each. How much did each friend get? Complete the explanation of the steps you take to solve the problem. Enter your answer as a mixed number in simplest form. Each of Luis's friend gets cups of trail mix. First convert the fractions into improper fractions, find the least common denominator (LCD), the numerator by the amount multiplied to get the LCD, and then add the fractions.
4 2/3 cups of popcorn, 1 1/4 cups of peanuts, 1 1/3 cups of raisins, 3/4 cups of sunflower seeds
4 2/3 + 1 1/3 = 6
1 1/4 + 3/4 = 2
6 + 2 = 8 cups of trail mix total
8 / 5 = how much each friend gets
1 3/5
Each of Luis's friends get 1 3/5 cups of trail mix.
Hope this helps!! :)
At the electronics store, Martin earns a 4.5% commission on his monthly sales.If his sales for January were $1,350, how much of a commission did he earn?
Answer:
60.75
Step-by-step explanation:
Since he earns a 4.5% commission
you need to find 4.5% of $1,350
1350 x 0.045 = 60.75
I need help ASAP. Thank you
3x^2 + 23x - 36
^
3x to the power of 2 btw for the first part.
Answer:
.
Step-by-step explanation:
(3x-4)(x+9)
you can continue doing it :)
PLEASE HELP
Which x value would make the following expression undefined? *
(81x^2 – 25) * 6/18x + 10
Answer
Given expression,
[tex](81x^2-25)\times \dfrac{6}{18x+10}[/tex]
We have to find the value of x for which the expression is undefined.
Simplifying the given expression
[tex]((9x)^2-5^2)\times \dfrac{3}{9x+5}[/tex]
[tex](9x-5)(9x+5)\times \dfrac{3}{9x+5}[/tex]
[tex]3(9x-5)[/tex]
On solving we can see that the expression is defined for all value of x.
Given the following formula solve for r
Answer:
D
Step-by-step explanation:
C = 2pir
Divide both sides by 2pi
C/(2pi) = 2pi/2pi r -->
C/(2pi) = r
That's D
The required solution of given formula is r = C/(2π). which is the correct answer would be option (D)
What is the Circumference of a circle?
The Circumference of a circle is defined as the product of the diameter of the circle and pi.
C = πd
where 'd' is the diameter of the circle
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
/ Division operation: Divides left-hand operand by right-hand operand
For example 4/2 = 2
We have been given that formula as:
⇒ C = 2πr
We have to formula solve for r
⇒ C = 2πr
Divide both sides by 22π
⇒ C/(2π) = r2π/2π
⇒ C/(2π) = r or
⇒ r = C/(2π)
Hence, the correct answer would be option (D)
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A water balloon shaped like a sphere is filled with water. The water balloon has a diameter of 3 inches. Which measurement is closest to the volume of water in the water balloon in cubic inches?
Answer:
14.137
Step-by-step explanation:
volume of a circle is 4/3pie(radius to the 3rd power)
Answer: 14 in cubed
Step-by-step explanation:
A regular heptagon has a side length of 13.9 and an apothem of 14.4. Find the area of the regular heptagon.
Answer: 700.56
Step-by-step explanation:
A heptagon has 7 sides, therfore a regular heptagon will have 7 equal sides
n = 7 (number of sides)
s = 13.9 (length of each sides of the heptagon)
r = 14.4 (The apothem)
The area of the regular heptagon can be calculated by:
Area = ½ n × s × r
Area = ½ × 7 × 13.9 × 14.4
Area = 700.56 square units
I need help with questions #7 and #8 plz
Answer:
7. A = 40.8 deg; B = 60.6 deg; C = 78.6 deg
8. A = 20.7 deg; B = 127.2 deg; C = 32.1 deg
Step-by-step explanation:
Law of Cosines
[tex] c^2 = a^2 + b^2 - 2ab \cos C [/tex]
You know the lengths of the sides, so you know a, b, and c. You can use the law of cosines to find C, the measure of angle C.
Then you can use the law of cosines again for each of the other angles. An easier way to solve for angles A and B is, after solving for C with the law of cosines, solve for either A or B with the law of sines and solve for the last angle by the fact that the sum of the measures of the angles of a triangle is 180 deg.
7.
We use the law of cosines to find C.
[tex] 18^2 = 12^2 + 16^2 - 2(12)(16) \cos C [/tex]
[tex] 324 = 144 + 256 - 384 \cos C [/tex]
[tex]-384 \cos C = -76[/tex]
[tex]\cos C = 0.2[/tex]
[tex] C = \cos^{-1} 0.2 [/tex]
[tex] C = 78.6^\circ [/tex]
Now we use the law of sines to find angle A.
Law of Sines
[tex] \dfrac{a}{\sin A} = \dfrac{b}{\sin B} = \dfrac{c}{\sin C} [/tex]
We know c and C. We can solve for a.
[tex] \dfrac{a}{\sin A} = \dfrac{c}{\sin C} [/tex]
[tex] \dfrac{12}{\sin A} = \dfrac{18}{\sin 78.6^\circ} [/tex]
Cross multiply.
[tex] 18 \sin A = 12 \sin 78.6^\circ [/tex]
[tex] \sin A = \dfrac{12 \sin 78.6^\circ}{18} [/tex]
[tex] \sin A = 0.6535 [/tex]
[tex] A = \sin^{-1} 0.6535 [/tex]
[tex] A = 40.8^\circ [/tex]
To find B, we use
m<A + m<B + m<C = 180
40.8 + m<B + 78.6 = 180
m<B = 60.6 deg
8.
I'll use the law of cosines 3 times here to solve for all the angles.
Law of Cosines
[tex] a^2 = b^2 + c^2 - 2bc \cos A [/tex]
[tex] b^2 = a^2 + c^2 - 2ac \cos B [/tex]
[tex] c^2 = a^2 + b^2 - 2ab \cos C [/tex]
Find angle A:
[tex] a^2 = b^2 + c^2 - 2bc \cos A [/tex]
[tex] 8^2 = 18^2 + 12^2 - 2(18)(12) \cos A [/tex]
[tex] 64 = 468 - 432 \cos A [/tex]
[tex] \cos A = 0.9352 [/tex]
[tex] A = 20.7^\circ [/tex]
Find angle B:
[tex] b^2 = a^2 + c^2 - 2ac \cos B [/tex]
[tex] 18^2 = 8^2 + 12^2 - 2(8)(12) \cos B [/tex]
[tex] 324 = 208 - 192 \cos A [/tex]
[tex] \cos B = -0.6042 [/tex]
[tex] B = 127.2^\circ [/tex]
Find angle C:
[tex] c^2 = a^2 + b^2 - 2ab \cos C [/tex]
[tex] 12^2 = 8^2 + 18^2 - 2(8)(18) \cos B [/tex]
[tex] 144 = 388 - 288 \cos A [/tex]
[tex] \cos C = 0.8472 [/tex]
[tex] C = 32.1^\circ [/tex]