Answer:
Sin M= opposite/hypotenuse, cos M= adjacent/Hypotenuse, tan M= opposite/adjacent
Step-by-step explanation:
Answer:
sinM= [tex]\frac{opposite}{hypotenuse}[/tex]
cosM= [tex]\frac{adjacent}{hypotenuse}[/tex]
tanM= [tex]\frac{opposite}{adjacent}[/tex]
help a girl out please!
100pts!! Please help me graph this piecewise function!!!!
Answer:
Step-by-step explanation:
Attached is graphed piecewise function.
Take note, if the inequality is a less than or equal to or (more than or equal to), the dots will be solid, otherwise it will be hollow.
Since this is a piecewise function, here is one question you might want to ask yourself:
Does the limit exist when x approaches 4?
How do l do this?? So confused please help me
Answer:
hope they do help. in case of any questions feel free to ask.
The path of a ball is modelled by the quadratic function ℎ(t) = −5(t − 2)^2 + 23 where
height, h(t), is in metres and time, t, is in seconds.
a. What is the maximum height the ball reaches?
will give
Answer:
23
Step-by-step explanation:
the answer is the y intercept of the equation
Answer:
23m, at t=2s
Step-by-step explanation:
Putting the physics part aside, you can rewrite the height function as
[tex]h(t)= 23 - 5(t-2)^2[/tex]. Now you have a fixed value, 23, and you're subtracting to it a quantity that, being a square, is at least zero. The maximum value of that sum you have when you're not subtracting anything, that is 23. That happens when [tex]5(t-2)^2 = 0 \rightarrow t=2[/tex]
Alternatively, if you know how to determine the velocity from that kind of motion, you can find out the speed, and the highest altitude you reach when the speed is zero, which leads to a bunch of calculation for the same result.
Foster’s answer to the question he wrote for Ranger was 7x + (–3), while Ranger’s answer was 7x – 3. They both checked their work by letting x = 5, and they both claim to be correct. Are they both correct? Explain
Answer:
Dude their answers are the same
Step-by-step explanation:
Adding a negative is the same as subtracting
Answer:
Yes, they're both correct
Step-by-step explanation:
They are both correct because both equations are equal. You could rewrite 7x + (-3) as 7x + 1(-3) and when you "distribute" the positive 1 the equation becomes 7x-3 which is the same thing as 7x-3. When you're subtracting 1 you're also technically adding negative 1
Which mathematical figure has length but no beginning or end?
O a point
O a segment
O a line
O a ray
Answer:
The correct answer: a line
Assume Pina Colada Corp. uses the periodic inventory system and has a beginning inventory balance of $5800, purchases of $65000, and sales of $112000. Pina closes its records once a year on December 31. In the accounting records, the inventory account would be expected to have a balance on December 31 prior to adjusting and closing entries that was:
a. equal to $5800
b. less than $5800
c. more than $5800
d. indeterminate
The inventory account expected to have by December 31 is more than $5800. Option C
How to calculate the end inventoryThe formula for end inventory is given as ;
Ending inventory = Beginning inventory + net purchases –sales
Beginning inventory = $5800
Net purchases = $65000
Sales = $112000
Put into the formula
Ending inventory = $ [tex]5800 + 65000 - 112000[/tex]
Add first,
Ending inventory = $ [tex]70800 - 112000[/tex]
Ending inventory = $ -41, 200
Thus, the inventory account expected to have by December 31 is more than $5800. Option C
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Find the value of p.
Answer:
p = 9
Explanation:
There is no remainder when a polynomial is completely divided by divisor.
Here:
divisor: (x - 6)polynomial: f(x) = x³ - 13x² + 6px - 72Set to zero:
(x - 6) = 0x = 6Insert into equation.
f(6) = 0
(6)³ - 13(6)² + 6p(6) - 72 = 0
216 - 468 + 36p - 72 = 0
-324 + 36p = 0
36p = 324
p = 324/36
p = 9
If four times a number, added to 3 is divided by the number plus 2, the result is seven halves. Find the number.
The number is…
Answer:
X=-8
Step-by-step explanation:
A number x is multiplied by 4, added to 3, and then divided by x+2, leaving us with 7/2. Or, as an equation:
[tex] \frac{4x + 3}{x + 2} = \frac{7}{2} [/tex]
Now, let's cross multiply:
[tex]2(4x + 3) = 7(x + 2)[/tex]
[tex]8x + 6 = 7x + 14[/tex]
And solve:
[tex]x + 6 = 14[/tex]
[tex]x = - 8[/tex]
How do I solve for X?
Answer:
20
Step-by-step explanation:
To find x, note that:
Vertically opposite angles are equal.Therefore,
(2x + 20)° = 60°
Removing bracket.
2x + 20 = 60
collecting like term.
2x = 60 - 20
2x = 40
dividing bothsides by 2
2x/2 = 40/2
x = 20
[tex]\Large\maltese\underline{\textsf{A. What is Asked}}[/tex]
How do I solve for X?
[tex]\Large\maltese\underline{\textsf{B. This problem has been solved!}}[/tex]
Angles [tex]\bf{60^\circ}[/tex] and [tex]\bf{2x+20}[/tex] are vertical angles. They are congruent, or equal.
Thus,
[tex]\bf{2x+20=60}[/tex] | subtract 20
[tex]\bf{2x=40}[/tex] | divide the equation by 2
[tex]\bf{x=20}[/tex]
[tex]\cline{1-2}[/tex]
[tex]\bf{Result:}[/tex]
[tex]\bf{=x=20}[/tex]
[tex]\LARGE\boxed{\bf{aesthetic \not1\theta l}}[/tex]
When proving the product, quotient, or power rule of logarithms, various properties of logarithms and exponents must be used.
Which property listed below is used in all of these proofs?
When proving the properties of logarithms when exponents must be used, the property that is used in all of these is D. [tex]log_{b} (b^y) = y[/tex]
What property is used in proving the properties of logarithms?When proving any property of logarithms that have to do with exponents, one property that should always be used is [tex]log_{b} (b^y) = y[/tex].
Expressing y as a product of [tex]log_{b} (b^y)[/tex] is the most basic property of using exponents on logs because it has both product, quotient, and power rules of logarithms.
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Find the sum of the first 10
terms.
0.5,0.9,1.3,1.7,..
Answer: 23
Step-by-step explanation:
The first term is 0.5 and the common difference is 0.4.
Using the sum of an arithmetic series formula,
[tex]S_{10}=\frac{10}{2}[2(0.5)+(10-1)(0.4)]=\boxed{23}[/tex]
Hola
Select the correct answer from each drop-down menu.
Identify the key features of these functions:
f(x) = 3(x + 5)² - 10
g(x) = -4x² + 3x - 1
h(x) = -0.25(x + 3)(x - 1)
The vertex of f is at
The y-intercept of g is
"The zeros of h are at
▼
and
Submit
The answer to this problem
Hello and Good Morning/Afternoon
Let's take this problem step-by-step:
What does the problem want:
⇒use the substitution method
⇒ to solve the problem
Let's substitute y's value from the second equation to our first equation
[tex]2x-y=8\\y=x-3\\\\\rm \hookrightarrow 2x-(x-3)=8\\\rm \hookrightarrow 2x-x+3=8\\\rm \hookrightarrow x=8-3=5[/tex]
Now substitute the x's value into the first equation
[tex]y=x-3\\x=5\\\\\rm \hookrightarrow y=(5) - 3 =2[/tex]
The solution is (5,2)
Answer: (5,2) or (B)
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What is the deposit of $40
The integer form is + 40.
The integer form is - 25
What is an integer?An integer is a whole number from the set of negative, non-negative, and positive numbers.
Therefore, integers can be written without fractional components.
Hence, integers may include negative or positive numbers . Examples are -1, 2, 5, -8, 9 and many more.
A deposit of 40 dollars means gain. Therefore, the integer form is + 40.
A loss of 25 pounds mean loss. Therefore, the integer form is - 25
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Middle School Math - Problem Solving and Discovery (7-8)
Directions: Use a systemic list to solve the following problems. Make sure to show all of your work!
1. Rides Tickets: Marcy had $10.00 to spend at the state fair. She spent all of it on the ride tickets. The
rides cost either $0.50, $1.00, or $1.25 each. What are all the possible ways in which she spent her
money?
Putting different values in the variable could give the total money spend.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
Marcy had $10.00 to spend at the state fair. She spent all of it on the ride tickets.
The rides cost either $0.50, $1.00, or $1.25 each.
The equation form;
0.50x + 1.00y + 1.25z = 10
Putting different values in the variable could give the total money spend.
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Need help please Asap!
The GDP and the years illustrated will be:
2016 = $149208.62017 = $157150.12018 = $161284.32019 = $161335.32020 = $144422.1What is Gross domestic product?It should be noted that the gross domestic product simply means the monetary value of the overall economic activity in a country.
The gross domestic product and their corresponding years have been given.
The business cycle that was illustrated showed that there was a gradual expansion before getting to the peak where recession sets in
Also, the short run Philips curve is illustrated as there's a trade off between inflation and unemployment.
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567 teams participate in a football tournament. If each team plays against every other team only once, how many matches will be played in total?
Given that, 567 teams participate in a football tournament, If each team plays against every other team only once, number of matches played in total is 160461.
How many matches will be played in total?To determine the total number of matches played, we apply Combination.
ⁿCr = n! / r!( n-r )!
Given that;
Number of team n = 567Number of team in r match a = 2We substitute
[tex]^nC_r = \frac{n!}{r!(n-r)!} \\\\^nC_r = \frac{567!}{2!(567-2)!} \\\\^nC_r = \frac{567!}{2!(565)!}\\\\^nC_r = \frac{567 * 566 * 565!}{2!(565)!} \\\\Cancel-common - factor: 565!\\\\^nC_r = \frac{567 * 566 }{2!} \\\\^nC_r = \frac{567 * 566 }{2*1}\\\\^nC_r = \frac{ 320922 }{2} \\\\^nC_r = 160461[/tex]
Given that, 567 teams participate in a football tournament, If each team plays against every other team only once, number of matches played in total is 160461.
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A list of consecutive integers begins with m and ends with n. If n - m = 66, how many integers are in the list?
Answer:
67.
Step-by-step explanation:
n - m = 66
The 66 includes the number m+1 up to and including n (buy not m).
So the number of integers is 66 +1 = 67
Solve for y: -20x + 10y = 30
Answer:
y = 2x + 3
Step-by-step explanation:
Hello!
Solve for y by isolating the variable.
Solve for y[tex]-20x + 10y = 30[/tex][tex]10y = 30 + 20x[/tex][tex]y = \frac{30 + 20x}{10}[/tex][tex]y = \frac{(10)(3 + 2x)}{10}[/tex][tex]y = 3 + 2x[/tex][tex]y = 2x + 3[/tex]The solution is y = 2x + 3.
To Calculate :-
Value of y.Solution :-
⇒ -20x + 10y = 30
☆ Transposing (-20x) to R.H.S. sign would be changed to positive.
⇒ 10y = 30 + 20x
⇒ y = 30 + 20x / 10
⇒ y = 10 (3 + 2x) / 10
☆ Cancelling 10,
⇒ y = 3 + 2x / 1
⇒ y = 2x + 3
jay sold n tickets. Pilar sold three times as many tickets as jay did. together, jay and pilar sold ten more tickets than amie sold. Which expression shows how many tickets amie sold?
A. 10 - 4n
b. 3n² + 10
c. 4n + 10
d. 4n - 10
Answer:
4n - 10
Step-by-step explanation:
Jay: n tickets
Pillar: 3n tickets
Jay + Pillar = n + 3n = 4n tickets
Now, Jay and Pillar together sold 10 more tickets than Amie, which means, in reverse, Amie sold 10 less tickets than Jay and Pillar together, so the expression for the number of tickets sold by amie would be:
4n-10 (4n is the number of tickets Jay and Pillar sold together, 10 is the difference between them and Amie).
Line AB contains points A (8,-4) and B (1, -5). The slope of line AB is
Let, the points be A (8, −4) and B (1, −5). The slope of line AB exists 1/7.
How to estimate the slope of line AB?Utilize the slope formula to estimate the slope of a line provided the coordinates of two points on the line.
The slope formula exists [tex]$m = (y_{2} -y_{1})/(x_{2} - x_{1} )[/tex], or the difference in the y values over the difference in the x values. The coordinates of the first point symbolize [tex]$x_{1}[/tex]and [tex]$y_{1}[/tex]. The coordinates of the second points exist [tex]$x_{2} , y_{2} .[/tex]
The slope of the line exists the ratio of the rise to the run, or rise separated by the run.
[tex]$m = (y_{2} -y_{1})/(x_{2} - x_{1} )[/tex]
The Line, AB contains points A (8, −4) and B (1, −5).
Substitute the value of points in the equation then we get
[tex]$m = (y_{2} -y_{1})/(x_{2} - x_{1} )[/tex]
m = (-5-(-4))/(1 - 8)
Simplifying the above equation, we get
m = (-5+4)/(1 - 8)
m = (-1)/(-7)
m = 1/7
Therefore, the slope of line AB exists 1/7.
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A student ran a distance of 3 miles each day for 5 days. Then the student ran a distance of 4 miles each day for the next 5 days
What was the total distance in miles the student ran during these 10 days?
QUICK PLEASE. A person invest $2000 at 4.5% simple interest for two years. make sure to show all your work.
a) What would the interest earned be after two years?
b) What would the total amount be after two years?
The total amount after 2 years is $2180
How to determine the interest?The given parameters are:
Principal, P =$2000
Rate, r =4.5%
The interest in 2 years is calculated as:
I = PRT
So, we have:
I = 2000 * 4.5% * 2
Evaluate
I = 180
Hence, the interest after 2 years is $180
How to determine the total amount?This is calculated as:
Amount = P + I
So, we have:
Amount = $2000 + $180
Evaluate
Amount = $2180
Hence, the total amount after 2 years is $2180
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n the derivation of the formula for the volume of a cone, the volume of the cone is calculated to be StartFraction pi Over 4 EndFraction times the volume of the pyramid that it fits inside. A cone is inside of a pyramid with a square base. The cone has a height of h and a radius r. The pyramid has a base edge length of 2 r. Which statement best describes where the StartFraction pi Over 4 EndFraction comes from in the formula derivation? It is the ratio of the area of the square to the area of the circle from a cross section. It is the ratio of the area of the circle to the area of the square from a cross section. It is the difference of the area of the square and the area of the circle from a cross section. It is the sum of the area of the square and the area of the circle from a cross section.
The fraction π/4 comes from the the ratio of the area of the circle to the area of the square from a cross section.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Given that:
Volume of cone = (π/4) * volume of pyramid it fits inside
Ratio of area of cone to area of square = πr²/(2r)² = πr²/4r² = π/4
The fraction π/4 comes from the the ratio of the area of the circle to the area of the square from a cross section.
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(B.) It is the ratio of the area of the circle to the area of the square from a cross section.
Given that NQ ll PR, find NP
The parallel lines cuts the sides in equal proportion to give NP = 0.8
How can the length of NP be found?The given diagram consists of a line parallel to one of the sides of the triangle.
According to the triangle proportionality theorem, the parallel line, NQ, proportionally divides the sides MR and MP, such that:
NQ || PR
By triangle proportionality theorem;
[tex]\mathbf{ \frac{ MN }{ NP} } = \frac{ MQ }{ QR } [/tex]
Which gives;
[tex] \mathbf{ \frac{ 5 }{ NP} } = \frac{ 8}{ 2 } [/tex]
2×5 = 8 × NP
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A test requires that you answer first Part A and then either Part B or Part C. Part A consists of 6 true-false questions, Part B consists of 6 multiple-choice questions with one correct answer out of five, and Part C consists of 3 multiple-choice questions with one correct answer out of six. How many different completed answer sheets are possible?
Answer:
1,013,824 different completed answer sheets are possible
Step-by-step explanation:
So let's start with part A. There is 6 questions which have 2 options, because it's a true-false question. With the first question, you can choose 2 options, true or false, from there you can choose true or false. I've attached a diagram which further illustrates this. So as you can see as you answer each question, the amount of combinations get's multiplied by 2, or in other words, the amount of combinations can be expressed as: [tex]2^n[/tex] where n=amount of questions. Since there are 6, there are [tex]2^6[/tex] combinations which is 64 total combinations by the time you answer all 6 questions.
So now from here you can choose either part B or C, and I'm assuming you can't do both, you chose one. So we can treat them as completely separate scenarios, and then after that add the amount of combinations from doing part A/B and part A/C.
So let's start with the scenario that you do part B after part A. part B consists of 6 multiply choice questions and it has 5 options per question. If you remember, the first question, you had 2 initial options, and for each of those 2 initial options, you had 2 more (true/false), then you had 4, then for each of those 4 you had 2, then you had 8. So this relationship can generally be treated as: [tex]a^n[/tex] where a = amount of options, and n = amount of questions. This is because for each question, you're going to have a options, so the first question is going to be "a" amount of combinations, then the second question, for each combination which is currently a, you're going to have "a" combinations, so now you have a*a combinations and so on... So here you're going to have: [tex]5^6[/tex] choices. which is 15,625. But remember, this is after doing part A. So this means you can extend these amount of combinations to the 64 amount of combinations. I attached another graph to help you understand this. This means you will have 15,625 * 64 combinations which is 1,000,000 combinations if you chose part A then part B
Now let's look at the scenario you chose part A then part C. This isn't an extension onto part B, so we can see them as two separate scenarios. So like two completely different graphs. So for part C, we can use the general equation we used in the previous question: [tex]a^n[/tex]. In this case there are 3 questions, and 6 options, so the amount of combinations is: [tex]6^3[/tex] which is 216, now for reasons explained in the previous paragraph, you need to multiply this by the 64 combinations from part A. This gives you 216 * 64 = 13,824.
So now we calculated part A/B combinations = 1,000,000
and part A/C combinations = 13,824
So adding these together you get: 1,013,824 combinations
Fill in the missing numbers to complete the Sequence below. 1, 2, 3, 7,-, 24,-.
The missing numbers are 13 and 50
How to determine the numbers
Given the numbers;
1, 2, 3, 7, -, 24, -.
Find the numbers by preceding numbers together, thus;
1 + 1 =2
1 + 2 = 3
1 + 2 + 3 = 7
1 + 2 + 3 + 7 = 13
1 + 2 + 3 + 7 + 13 + 24 = 50
Thus, the missing numbers are 13 and 50
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Rachel recorded the number of calls she made at work during the week:
Day Calls
Monday 18
Tuesday 14
Wednesday 24
Thursday 16
She expected to make 18 calls each day. To answer whether the number of calls follows a uniform distribution, a chi-square test for goodness of fit should be performed. (alpha = 0.10)
chi squared equals begin inline style sum from blank to blank of end style fraction numerator left parenthesis O minus E right parenthesis squared over denominator E end fraction
What is the chi-squared test statistic?
The chi-squared test statistic will be 3.11. The test statistic is contrasted with a predicted value based on the Chi-square distribution.
What is the chi-squared test statistic?Finding the squared difference between the actual and anticipated data values, then dividing that difference by the expected data values, constitutes the test statistic.
The formula for the chi-squared test statistic is;
[tex]\sum \frac{(O_i-E_i)^2}{E_i } \\\\[/tex]
Where,
[tex]\rm O_i[/tex] is the observed value
[tex]\rm E_i[/tex] is the expected value
The chi-square test statics is;
[tex]\rm( \frac{18-18}{18} )^2 +( \frac{14-18}{18} )^2 + (\frac{24-18}{18} )^2+( \frac{16-18}{18} )^2 \\\\ 0+ \frac{16}{18}+ \frac{36}{18} +\frac{4}{18}\\\\ \frac{56}{18} \\\\ 3.11[/tex]
Hence, the chi-squared test statistic will be 3.11.
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Multiply. Simplify your answer and write it as a mixed number. 6 * 4/5
Answer:
24/5
Step-by-step explanation:
[tex]\frac{6}{1}*\frac{4}{5} = \frac{24}{5}[/tex]
[tex]\Large\maltese\underline{\textsf{A. What is Asked}}[/tex]
Multiply, and simplify your answer, and write it as a mixed number,
[tex]\Large\maltese\underline{\textsf{B. This problem has been solved!}}[/tex]
Write the first fraction as 6/1 and multiply it times 4/5.
[tex]\bf{\dfrac{6}{1}\times\dfrac{4}{5}=\dfrac{6\times4}{1\times5}}=\dfrac{24}{5}}[/tex] | Have you noticed that we multiply the numerators together, and we do the exact same thing with the denominators?
as a mixed number[tex]\bf{4\dfrac{4}{5}}[/tex]
[tex]\cline{1-3}[/tex]
[tex]\bf{Result:}[/tex]
[tex]\bf{=4\dfrac{4}{5}}[/tex]
[tex]\LARGE\boxed{\bf{aesthetic \not1\theta l}}[/tex]