Answer:
[tex]\text{The coordinates of point is }P(a,b)=(\frac{80}{7}, \frac{17}{7})[/tex]
Step-by-step explanation:
[tex]\text{Given the coordinates of point that is }\frac{1}{6}\text{ of the way from a(14, -1), b(-4, 23)}[/tex]
[tex]\text{If a point }P(a, b)\text{ divides the line joining two points }(x_1,y_1)\text{ and }(x_2, y_2)\\ \text{ in the ratio m:n internally, then the coordinates of point P are given by}[/tex]
[tex]P(a,b)=(\frac{mx_2+nx_1}{m+n}, \frac{my_2+ny_1}{m+n})[/tex]
The two points given are a(14, -1), b(-4, 23) and ratio m:n=1:6
[tex]P(a,b)=(\frac{1(-4)+6(14)}{1+6}, \frac{1(23)+6(-1)}{1+6})[/tex]
[tex]P(a,b)=(\frac{80}{7}, \frac{17}{7})[/tex]
Find the inverse of the matrix [tex]\left[\begin{array}{cc}-4&6\\8&-12\\\end{array}\right][/tex]
if it exist.
Answer:
D
Step-by-step explanation:
If there is a 2x2 matrix as [tex]\left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right][/tex]
The determinant is given by [tex]\frac{1}{ad-bc}\left[\begin{array}{ccc}d&-b\\-c&a\\\end{array}\right][/tex]
Now, if we calculate the value of "ad - bc", we see that:
[tex](-4)(-12)-(8)(6)=0[/tex]
We can't calculate the inverse, the inverse doesn't exist. The answer is D.
can someone help me with this? Would greatly appreciate it ...
This is the answer to your mathematical question !!
Please help with this!!!!
The other angel is also equal to x and the sum of all angels need to be 360:
2x+90+26=360
2x=244
X=122
Answer:
The answer is 112
Step-by-step explanation:
Because seven ate nine :D but seriously 90+26+2x=360 so thats
116+2x=360 and 360-116 is 244 and you divide that by the remaining 2
and that gives you your answer of 112
Julia bought 40 bags of compost each bag weighed 50 lb is how many tons of compost did she buy
Answer:
She bought .9 ton of compost.
Step-by-step explanation:
Take the amount of bags she bought and multiply it by the weight of each bag.
40*50=2,000
Then divide it by the amount a ton is.
2,000/2,204=0.90718474
Round it to the nearest tenth.
=.9
Then that's you're answer.
The population of City A was approximately 243000 people, and it increased by 8% in one year. What was the new population
Answer:
262,440
Step-by-step explanation:
Multiply the population (243000) times 8% (0.08)
243000*0.08 = 19,440
Add the 8% to the total population
19,440 + 243,000 = 262,440
The new population of City A after one year with an 8% of the increasing rate will be 262,440.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
The number of inhabitants in City A was roughly 243000 individuals, and it expanded by 8% in one year.
The new population of City A after one year with an 8% of the increasing rate is given as,
⇒ (1 + 0.08) x 243,000
⇒ 1.08 x 243,000
⇒ 262,440
The new population of City A after one year with an 8% of the increasing rate will be 262,440.
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ5
10% of the students in a school like the color purple. 162 students don't like the color purple. How many students are in the school?
Answer:
There are 162 students in the school.
Step-by-step explanation:
10% do not like purple. x is the number of students in the school. We have 162 students that do not like purple.
x*.10 = 162
Divide each side by .10
x = 162/.10
x =1620
There are 162 students in the school.
The corresponding polynomial function is f(x) = x2 + 5x - 1 f(x) = x2 + 4x - 5 f(x) = x2 + 5x - 5 f(x) = x2 - 4x - 5
Answer:
f(x)=x^2+4x-5
Step-by-step explanation:
Quadratic functions are second-order polynomials. To solve a quadratic equation, set the function equal to zero, and use the quadratic formula. The corresponding polynomial function in this case is f(x) = x² + 5x - 1.
Explanation:The Solution of Quadratic EquationsQuadratic functions are second-order polynomials. They are of the form f(x) = ax² + bx + c, where a, b, and c are constants. To solve a quadratic equation, set the function equal to zero, and use the quadratic formula: x = (-b ± √(b²-4ac))/(2a). The discriminant, b²-4ac, determines the number and nature of the solutions. If the discriminant is positive, there are two real solutions. If it is zero, there is one real solution (a perfect square). If it is negative, there are no real solutions, but there are two complex solutions.
In this case, the corresponding polynomial function is f(x) = x² + 5x - 1.
Max wants to buy a new DVD player for $89.75. If sales tax is 8% how much will he pay in total for the DVD player
Answer:
$96.93
Step-by-step explanation:
1. multipy the cost of the item (89.75) times the 8% tax.
89.75 * 0.08 = 7.18 in tax
2. add the item cost plus tax
89.75 + 7.18 = $96.93
Max will have to pay $ 96.93 in total for the DVD player.
What is sales tax?An extra amount of money to be paid to the seller as tax on sales or on the receipt of sales is called sales tax.
How to find how much will he pay in total for the DVD player?According to the problem,
Max wants to buy a new DVD player for $89.75The sales tax is 8%So, Max will have to pay $ { 89.75 + [tex](\frac{8}{100}) 89.75[/tex]}
= $ 96.93
Find out more details on "Cost price and Sell price " here: https://brainly.com/question/1153322
#SPJ2
A trianglular prism with bases that are right triangles measuring 7 inches by 24 inches by 25 inches. The height of the prism is 3 inches
To calculate the volume of the triangular prism, first find the area of the right triangle that forms the base and then multiply it by the height of the prism.
Explanation:The question involves finding the volume of a triangular prism whose base is a right triangle with sides measuring 7 inches, 24 inches, and 25 inches, where 25 inches is the hypotenuse. The height of the prism is given as 3 inches. To find the volume of the prism, we use the formula for the volume of a triangular prism, which is the area of the triangular base times the height of the prism.
First, we find the area of the triangular base using the formula for the area of a right triangle, which is (1/2) × base × height. For this triangle, the base and height are the perpendicular sides, which are 7 inches and 24 inches respectively. Thus, the area of the base triangle is (1/2) × 7 × 24 square inches.
Next, we multiply the area of the base by the height of the prism to get the volume. The height of the prism is 3 inches, so the volume will be the area of the base triangle times 3 inches.
What facts are true for the graph of the function listed below? Please check all that apply.
F(x)=2 x 5^x
Answer:
E, B, A,
Step-by-step explanation:
C is wrong because it isn't decreasing
D is wrong because if X=0 the 5 to the power of zero would be 1 and 2*1= 2 meaning y goes lower than 5
F is wrong because if X=0 the 5 to the power of zero would be 1 and 2*1= 2 meaning the y intercept is 2 not 5
Answer:
[tex]\Large \boxed{\mathrm{A , \ B, \ and \ E}}[/tex]
Step-by-step explanation:
[tex]F(x)=2 \cdot 5^x[/tex]
There are no restrictions on x. The domain is all real numbers.
To find the y-intercept, we set the x value to 0. The y-intercept of the function is (0, 2).
The function is increasing, because as the value of the input increases, the value of the output increases as well.
Help ASAP Please!!!!
Which function includes a translation of 3 units to the left?
A. f(x)= (x+1)^2-3
B. f(x)= (x+3)^2+1
C. f(x)= 3x^2+1
D. f(x)= (x-3)^2+1
Answer:
It's B. f(x) = (x + 3(^2 + 1.
Step-by-step explanation:
f(x) ---- > f(x + 3) is a translation of 3 units to the left.
The correct function that includes a 3 unit leftward translation is f(x) = [tex](x-3)^2+1.[/tex]
Explanation:The correct function that includes a translation of 3 units to the left is option D, f(x) = [tex](x-3)^2+1.[/tex]
When we translate a function to the left by a certain number of units, we subtract that number from the x-values. In this case, subtracting 3 units from x would result in a translation to the left. The function f(x) = [tex](x-3)^2+1.[/tex] represents this translation. The x-3 part shifts the graph horizontally to the left by 3 units.
Learn more about Translation of Functions here:https://brainly.com/question/34349922
#SPJ11
(4x + 3) + (-2x + 4)
Answer:
(4x + 3) + (-2x + 4) = 2x + 7Step-by-step explanation:
(4x + 3) + (-2x + 4)
= 4x + 3 - 2x + 4 combine like terms
= (4x - 2x) + (3 + 4)
= 2x + 7
The diameter of Jim's circular flower bed is 10 feet what is the area in square feet of Jim's flower bed?
Answer:
A = 25π ft² or A = 78.5398 ft²
Step-by-step explanation:
The formula for area of a circle is
A = πr² where r is the radius
We are given a diameter of 10, the radius is half of the diameter, so for our problem r = 5. Plug that in and evaluate
A = π(5²)
A = 25π
or
A = 78.5398 if you multiply out pi
(Q6) What is the domain of the function f(x)= e^x/e^x+c if c is a constant greater than 0?
[tex]Domain: x\in\mathbb{R}[/tex]
The base and the height of a parallelogram are multiplied by 6. Which of the following describes the effect of this change on the perimeter?
The perimeter is multiplied by 1/36.
The perimeter is multiplied by 1/6.
The perimeter is multiplied by 6.
The perimeter is multiplied by 36.
Answer:
The perimeter would also be multiplied by 6.
Step-by-step explanation:
The perimeter would also be multiplied by 6. Suppose the sides are 5 and 10. The perimeter would be the sum of the side lengths or 5 + 5 + 10 + 10 = 30.
Multiply each side length so 5*6 = 30 and 10*6 = 60. Find the perimeter by finding their sum, 30 + 30 + 60 + 60 = 180.
Divide the new perimeter by the old perimeter to find a scale factor.
180/30 = 6.
The new perimeter is exactly 6 times bigger since 6*30 = 180.
Answer:
The perimeter is multiplied by 6.
Step-by-step explanation:
Solve the triangle (picture provided)
Answer:
m∠A = 9.1°
m∠B = 10.9°
c = 54.2
The answer is (d)
Step-by-step explanation:
∵ a = 25
∵ b = 30
∵ m∠C = 160°
∴ c² = a² + b² - 2 × ab × cos(C)
∴ c² = 25² + 30² - 2(25)(30) × cos(160) = 2934.5389
∴ c = 54.2
∵ a/sin(A) = b/sin(B) = c/sin(C)
∵ 25/sin(A) = 54.2/sin(160)
∴ sin(A) = (25 × sin(160)) ÷ 54.2 = 0.1577584
∴ m∠A = 9.1°
∵ 30/sin(B) = 54.2/sin(160)
∴ sin(B) = (30 × sin(160)) ÷ 54.2 = 0.18931
∴ m∠B = 10.9°
The math teacher asked Edith, "How old are you?" "Sixty years less than five times my brother's age," she answered. "That doesn't help me," replied the teacher. "Yes, it does," said Edith, "He and I are twins!" How old is Edith?
x= twin 1 and 2
x=5x-60
x-5x=-60
-4x=-60
x=15
check 15=5(15)-60
15=75-60
15=15
According to a survey, 60 % of the residents of a city oppose a downtown casino. Of these 60 % about 8 out of 10 strongly oppose the casino. Complete parts (a) through (c). (a) Find the probability that a randomly selected resident opposes the casino and strongly opposes the casino. (b) Find the probability that a randomly selected resident who opposes the casino does not strongly oppose the casino. (c) Would it be unusual for a randomly selected resident to oppose the casino and strongly oppose the casino? Explain.
Answer:
(a) 0.48
(b) 0.20
(c) it is not unusual for a radomly selected resident to oppose the casino and strongly oppose the casino.
Step-by-step explanation:
(a) Find the probability that a randomly selected resident opposes the casino and strongly opposes the casino.
The probability that a radomly selected resident opposes the casino and strongly opposes the cassino is the product of the two probabilities, that a resident opposes the casino and that it strongly opposes the casino (once it is in the first group) as it is shown below.
Use this notation:
Probability that a radomly selected resident opposes the casino: P(A)Probability that a resident who opposes the casino strongly opposes it: P(B/A), because it is the probability of event B given the event Ai) Determine the probability that a radomly selected resident opposes the casino, P(A)
Probability = number of favorable outcomes / number of possible outcomes
P(A) is given as 60%, which in decimal form is 0.60ii) Next, determine,the probability that a resident who opposes the casino strongly opposes it, P(B/A):
It is given as 8 out of 10 ⇒ P(B/A) = 8/10iii) You want the probability of both events, which is the joint probability or intersection: P(A∩B).
So, you can use the definition of conditional probability:
P(B/A) = P(A∩B) / P(A)iv) From which you can solve for P(A∩B)
P(A∩B) = P(B/A)×P(A) = (8/10)×(0.60) = 0.48(b) Find the probability that a randomly selected resident who opposes the casino does not strongly oppose the casino.
In this case, you just want the complement of the probability that a radomly selected resident who opposes the casino does strongly oppose the casino, which is 1 - P(B/A) = 1 - 8/10 = 1 - 0.8 = 0.2.
(c) Would it be unusual for a randomly selected resident to oppose the casino and strongly oppose the casino?
You are being asked about the joint probability (PA∩B), which you found in the part (a) and it is 0.48.
That is almost 0.50 or half of the population, so you conclude it is not unusual for a radomly selected resident to oppose the casino and strongly oppose the casino.
Jenny bought gas for her car gas cost 3.45 pee gallon jenny bought 12.2 gallons what was the total cost for jennys gas
Answer:
$42.09
Step-by-step explanation:
1. multiply the cost per gallon (3.45) by the gallons purchased (12.2)
3.45*12.2 = 42.09
Answer:
42.09
Step-by-step explanation:
12.2×3.45
A company offers you a job with an annual salary of $70 000 for the first year and a 5% raise every year after. Approximately how much money in total would you earn in 5 years of working there?
$386794
$87500
$89340
$367500
Answer:
$89340
Step-by-step explanation:
70,000 (1 + .05)^5Answer:
$386794
Step-by-step explanation:
To find how much we're going to make in total after working for 5 years in the company, we can solve it by calculating for the total amount after each year.
So in the first year we get.
$70,000
To get how much we get in the 2nd year we add the extra 5%.
2nd year salary = (70000 x 0.05) + 70000
2nd year salary = 73500
Now we continue to do that until the 5th year
3rd = (73500 x 0.05) + 73500
3rd = 77175
4th = (77175 x 0.05) + 77175
4th = 81033.75
5th = (81033.75 x 0.05) + 81033.75
5th = 85085.44
Now we add them all up to get the total.
70000 + 73500 + 77175 + 81033.75 + 85085.44
We get:
$386794.19 or $386794
Find the diagonal of the rectangle solid with the given measures. I = 3, w = 5, h = 5
Hope this HELP:)))
☆ ☆
The length of the edges of the triangle are (3x-4) feet, (x2-1)feet, and (2x-15) feet. What's is the perimeter of the triangle if x=4
Answer:
40 feet
Step-by-step explanation:
The perimeter of a triangle is the distance around the triangle. It can be found by adding all the sides together. First, find the amount each side is by substituting x = 4 and simplifying.
3x - 4 = 3(4) - 4 = 12 - 4 = 8
x² -1 = (4)² - 1 = 16 - 1 = 15
2x² - 15 = 2(4)² - 15 = 32 - 15 = 17
Add the sides together, 8 + 15 + 17 = 40 feet
Please answer this question only if you know the answer!!! :)
A full circle is 360 degrees.
The circle is separated into 8 parts, so each arc is 1/8 of a circle, which equals: 360/8 = 45 degrees.
There are 2 45 degree arcs between B and C, so the arc from B to C = 45 x 2 = 90 degrees.
The answer is B.
Need Help ASAP!!.
1. Error Analysis: Anita Help drew the triangle below. Her friend, Greta Life, told her that her triangle was incorrect. Who is correct? Explain.
2. The Geo Air pilot is looking at SCCA from the plane. From the aircraft the angle of depression is 17 degrees. If the plane is at an altitude of 10,000 feet, approximately how far is the plane to SCCA? Round your answer to the nearest tenth. The image is not drawn to scale.
3. Trey Rigg’s house is next to a large pine tree. The National Weather Center has issued a warning for high winds. Trey is worried that his house is at risk of being crushed by the pine tree. Trey’s house is 25 feet from the base of the tree and Trey calculates the angle of elevation to be 43 degrees from the base of his house. Find the height of the tree to determine if Trey’s house is at risk. Round your answer to the nearest tenth.
Picture 1 is for Number 1.
Picture 2 is for Number 2.
Picture 3 is for Number 3.
Answer:
Part 1) Greta's right, the triangle is incorrect.
Part 2) [tex]34,203\ ft[/tex]
Part 3) The height of the tree is [tex]23.3\ ft[/tex], Trey’s house is not at risk
Step-by-step explanation:
Part 1) we know that
In the right triangle of the figure
[tex]sin(30\°)=\frac{1}{2}[/tex]
[tex]sin(30\°)=\frac{6\sqrt{3}}{12}=\frac{\sqrt{3}}{2}[/tex]
Compare
[tex]\frac{1}{2}\neq\frac{\sqrt{3}}{2}[/tex]
therefore
The triangle is not correct
Because
The side adjacent to the 30 degree angle should be [tex]6\sqrt{3}[/tex] and the side opposite the 30 degree angle should be [tex]6[/tex]
Part 2)
Let
x--------> the distance from the airplane to the SCCA (hypotenuse of the right triangle)
we know that
[tex]sin(17\°)=\frac{10,000}{x}[/tex]
[tex]x=\frac{10,000}{sin(17\°)}[/tex]
[tex]x=34,203\ ft[/tex]
Part 3)
Let
x--------> the height of the tree
we know that
[tex]tan(43\°)=\frac{h}{25}[/tex]
[tex]h=tan(43\°)(25)=23.3\ ft[/tex]
[tex]23.3\ ft< 25\ ft[/tex]
therefore
Trey’s house is not at risk
Complete the inequality statement.
14 ft ____ 4 1/2 yd.
Answer:
4.66667
Step-by-step explanation:
I will mark brainliest!
Answer:
-5
Step-by-step explanation:
Point P represents -5. You can see that the line counts up in increments of 2. P is in between -6 and -4. It must be -5.
The correct answer is -5
As we can see from the picture, we have the number -4 before P and -6 after P. Which would mean -5 is the correct answer.
I hope this helps! :)
Have a wonderful day!
-LizzyIsTheQueen
Under which operations are polynomials closed? Addition, subtraction, multiplication, and division addition and subtraction only addition, subtraction, and multiplication only addition and multiplication only
Answer:
addition, subtraction, and multiplication only
Step-by-step explanation:
There are a couple of reasons why polynomials are not closed under division:
1. the set of polynomials includes zero, and division by zero is undefined.
2. division by a polynomial can give rise to terms that are not non-negative powers of the variable, 1/x, for example. These terms are not included in the set of polynomials.
Answer:
Addition, Subtraction, and Multiplication
Step-by-step explanation:
How are slopes and y-intercepts related to the number of solutions of a system of linear equations
For a system of 2 equations in 2 unknowns, there are 3 cases:
slopes are different — one solutionslopes are the same and y-intercepts are different — no solutionsslopes and y-intercepts are the same — infinitely many solutionsWhen slopes are different, the two lines intersect at one point, the solution.
When slopes are the same, the lines may be either parallel (different y-intercepts) or the same (same y-intercepts). If the lines are parallel, there are no points of intersection, hence no solutions. If the lines are the same line, they intersect at all points, so there are infinitely many solutions.
Simplify the expression (Picture provided)
Answer:
c. 1
Step-by-step explanation:
The given expression is
[tex]\cos(x) \csc(x) \tan(x)[/tex]
We express everything in terms of sine and cosine to obtain;
[tex]\cos(x) \times \frac{1}{\sin(x)} \times \frac{\sin(x)}{\cos(x)}[/tex]
We cancel out the common factors to obtain;
[tex]\frac{1}{1} =1[/tex]
Answer:
cos(x)csc(x)tan(x) = 1
Step-by-step explanation:
We have given a trigonometric expression.
cos(x)csc(x)tan(x)
We have to simplify the above expression.
Since, we know that
Tan(x) is ratio of sin(x) and cos(x).
Tan(x) = sin(x)/cos(x)
csc(x) is reciprocal of sin(x).
csc(x) = 1/sin(x)
Putting above values in given expression,we have
cos(x)csc(x)tan(x) = cos(x) × 1/sin(x) × sin(x)/cos(x)
cos(x)csc(x)tan(x) = 1 which is the answer.
Given that (x, y) = (5, 10), find r.
a.2√5
b.5√2
c.5√5
d.5√10
I am considering the point you have given is point on a circumference of a circle and center of circle is (0,0) and we have to calculate radius
so radius = root((x-h)^2 + (y-k)^2)
where (h,k) is center of circle
so r = root((5-0)^2+(10-0)^2)
= √(100+25) = √125 = 5√5
so answer is option c
The distance r from the point (5, 10) to the origin is calculated using the distance formula, resulting in r = 5√5. So, the correct answer is option (c) 5√5.
The student's question involves finding the distance r from a point to the origin in a coordinate system, given a point (x, y). Given the point (5, 10), we can calculate r using the distance formula [tex]r = \( \sqrt{(x - x_1)^2 + (y - y_1)^2} \).[/tex]
We want to find the distance r from the origin [tex](x_1,y_1)[/tex] = (0, 0) to this point (x, y) = (5, 10).
Substituting x = 5 and y = 10 into the equation, we get:
[tex]r = \( \sqrt{(5 - 0)^2 + (10 - 0)^2} \)\\ = \( \sqrt{5^2 + 10^2} \)\\ = \( \sqrt{25 + 100} \)\\ = \( \sqrt{125} \)\\ r = 5\sqrt{5}.[/tex]
Therefore, the correct answer is option (c) [tex]5\sqrt{5}[/tex].