Answer:
C
Step-by-step explanation:
f(x)=x-16 is just a straight line with a slope of one at a y intercept of -16. Therefore, x can hit all numbers in the x axis making the domain x is in the element of all real numbers.
Answer:
all real numbers
Step-by-step explanation:
literally the domain can be anything but the range is limited because of the vertical line check
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.
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.
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Since the sample size is always smaller than the size of the population, the sample meana. must always be smaller than the population meanb. must be larger than the population meanc. must be equal to the population meand. can be smaller, larger, or equal to the population mean
Answer:
d. can be smaller, larger, or equal to the population mean
Step-by-step explanation:
The mean of the sample will depend upon which values are selected from the population to form the sample.
The sample mean can be any value below, above or equal to the population mean.
However, as more and more samples are taken and their means found, the mean of the sample means will approach the population mean.
Answer:
It can be smaller, larger, or equal to the population mean.Step-by-step explanation:
We know that the sample size is smaller than the size of the population, because it's a subset that must represent the population.
However, that doesn't mean the sample mean has to be smaller than the population mean, actually this stats can be smaller, equal or larger, it depends on another factors.
Therefore, the right answer is the last choice
It can be smaller, larger, or equal to the population mean.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
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.
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
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.
can someone help me with this? Would greatly appreciate it ...
This is the answer to your mathematical question !!
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].
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:
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
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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
Last year Jo paid ?245 for her car insurance. This year she has to pay ?883 for her car insurance. Work out the percentage increase in the cost of her car insurance.
Answer:
The increase as a percentage is (2.60)(100%) = 260%
Step-by-step explanation:
The premium increase from last year is ($883 - $245), or $638.
The increase as a ratio is then $638/$245, or 2.60.
The increase as a percentage is (2.60)(100%) = 260%
A falcon flew 112 miles in the same time that an eagle flew 56 miles.What is the difference in the distances the two birds traveled?
the falcon flew 56 miles more than the eagle
Answer:
the eagle flew 56 miles less than the falcon
Step-by-step explanation:
112-56=56
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
(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
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
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
Draw a number line and mark all described points on it. Numbers that are both larger than –2 and smaller than 3.
To mark the points on a number line that are both larger than -2 and smaller than 3, you would mark off the points at -1, 0, 1, and 2 on this line.
Explanation:To draw a number line and mark all points that are both larger than -2 and smaller than 3, follow these steps:
Draw a straight horizontal line. This is your number line. Mark an arbitrary point as 0, the origin. To the left and right of 0, begin to mark off equal intervals representing integers. Choose a numbering system where points to the right of 0 are positive and those to the left are negative. Your description requires numbers that are larger than -2 and smaller than 3. So you would mark off the points -1, 0, 1, and 2 on the number line. Learn more about Number Line here:
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To mark all points larger than -2 and smaller than 3 on a number line, draw a straight line with equal intervals, labeling -2 and 3, and shade in the area between them. For constructing a histogram, divide the data range into intervals, then draw and label bars on the y-axis to reflect the count of data points within each interval.
Explanation:
To draw a number line and mark all points that are both larger than –2 and smaller than 3, begin by drawing a horizontal line. Use a ruler to keep the line straight. Place tick marks at regular intervals, and label them with numbers from less than -2 to greater than 3, ensuring that -2 and 3 are clearly marked on the line. The numbers larger than -2 but smaller than 3 will be between these two points. Shade this region to indicate all the numbers that meet the condition.
Next, if you need to construct a histogram, you first need a set of data to work with. Once you have your data, determine the range of data and divide this range into five to six intervals. On the horizontal axis, or the x-axis, represent these intervals. Then, count how many data points fall within each interval. On the vertical axis, or the y-axis, draw bars for each interval with heights corresponding to the number of data points in each interval. Use your ruler for precision and label the axes to show the scale.
Find the diagonal of the rectangle solid with the given measures. I = 3, w = 5, h = 5
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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 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
!!!!!!!!!!!!!!!!!I could use some help please uwu!!!!!!!!!!!
use the iterative rule to find the 7th term in the sequence~
an=30-4n
a7=___
thankyou!~bangtanboys7
Answer:
Step-by-step explanation:
Just substitute in 7 for the n.
30-4(7)
30-28
2
The 7th term in the sequence is 2.
(please give brainliest?)
The 7th term in the sequence defined by aₙ = 30 - 4n, substitute n with 7 and solve to get a₇ = 2. Thus, the 7th term is 2.
To find the 7th term in the sequence defined by the iterative rule aₙ = 30 - 4n, we need to substitute n with 7.
Start with the formula:⇒ aₙ = 30 - 4n
Substitute n with 7:⇒ a₇ = 30 - 4(7)
Calculate the result:⇒ a₇ = 30 - 28
The 7th term is:⇒ a₇ = 2
So, the 7th term in the sequence is 2.
Complete question:
Find the 7th term in the sequence
aₙ = 30 - 4n
Find the sum of the series 14+11+8+5........-82
The sum of this finite arithmetic series is -1122.
The sum of the arithmetic series 14+11+8+5...-82 is -1122. This is obtained by identifying the number of terms in the series, the first term, the last term and the common difference, then substitifying these values into the sum formula for an arithmetic series.
Explanation:The series provided is an arithmetic series, where each term decreases by 3 from the previous one. The formula to find the sum of an arithmetic series is S = n/2 * (a + l) where S is the sum of the series, n is the number of terms, a is the first term, and l is the last term.
In this case, the difference between consecutive terms is -3, the first term a = 14, and the last term l = -82. We find the number of terms by using the relation, l = a + (n-1)*d where d is the common difference. By substituting the given values, we can find that n = 33 terms. Substituting these values into the sum formula gives: S = 33/2 * (14 - 82) = -1122.
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Please answer this question only if you know it!
Answer:
d. 90°, 90°
Step-by-step explanation:
Both angles intercept 180° arc WZ. They are half the measure of the intercepted arc, hence both are 90°.
Complete the inequality statement.
14 ft ____ 4 1/2 yd.
Answer:
4.66667
Step-by-step explanation:
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.
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.
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°
Jodie wants to buy a shirt regularly priced at $20. The shirt is on sale for 15% off the regular price. Which equation can be used to determine s , the sale price of the shirt, not including tax? A s = 20 – (20)(0.15) B s = 20 – (20 + 0.15) C s = 20(0.15) D s = 20 + 0.15
Answer:
it's A
Step-by-step explanation:
you toke the price and times it by the decimal of the discount
Answer:
0.150 x $20 = $ 3.00.
Step-by-step explanation:
You want to buy something that costs $20, and it's on sale for 15% off. What is the item's sale price?
First, convert the 15% to a real mathematical number. For percents, this is always done by dividing the 15% by 100%, or 15% / 100% = 0.150.
Second, find out what 15% of $20 is. This is the amount of the sale discount. This is always found by mulitplying 0.150 by the item's cost $20. So for this sale, you'll save $ 3.00 on this item.
This means, the cost of the item to you is $17.00$