Answer: A. 724
Step-by-step explanation:
A submarine drops at a rate of 19 feet per minute. What is the submarine's depth, in feet, after 4 minutes?
a 67
ob -67
Oc 76
d -76
Answer:
.
Step-by-step explanation:
6 + b/5= 2 Please help guys
Answer:b=-20
Step-by-step explanation:
You start by subtracting 6 on both sides to get b/5=-4. To get b alone, you multiply by 5 on both sides and get the answer of b=-20
Given that CA = CB and m∠CPB = 90 degrees, which statement can you conclude is true?
Answer:
Step-by-step explanation:
I'm guessing this is what you were talking about?
the answer to the expression
Answer:
41/5
Step-by-step explanation:
24/5 + 17/5 = 41/5
Peyton pays $39.90 for 3.8 pounds of trail mix. What is the price per pound of trail mix?
5. Mrs. Jones is handing out candy to trick-or-
treaters. She gives out candy bars to kids in
costume and small packages of gummies to kids
without a costume. The candy bars cost $0.80,
and the gummies cost $0.25. At the end of the
night, 100 children visited Mrs. Jones's home,
and she gave out $69.00 in candy. How many
children who visited Mrs. Jones's home were
wearing a costume?
A. 20
B. 50
C. 69
D. 80
E. 92
ANSWER. BBB
Step-by-step explanation:
Mrs. Jones gave candy bars to 80 children who were wearing costumes. The correct answer is option D.
The question is a classic example of a system of equations problem
Let's call the number of children with costumes x and the number without costumes y. We have two pieces of information that will help us solve for x:
The total number of children is 100, so x + y = 100.
The total amount of money spent on candy is $69, and since candy bars cost $0.80 and gummies cost $0.25, we can express this as 0.80x + 0.25y = 69.
We can solve this system of equations using substitution or elimination method.
Let's use substitution and express y in terms of x from the first equation: y = 100 - x.
Now we substitute this into the second equation:
0.80x + 0.25(100 - x) = 69
0.80x + 25 - 0.25x = 69
0.55x = 44
Solving for x gives us x = [tex]\frac{44}{0.55}[/tex]
Therefore, 80 children wearing costumes were given candy bars by Mrs. Jones. The correct answer is D.
Help me out please I’m stuck
students are voting on the color of T-shirts to wear on their field trip. there are 160 students- 65 boys and 95-girls on the field trip. a random sample of students is chosen. surveying the random people produced a representative sample of the population. which was most likely of the representative sample?
a) the representative sample contained all 160 students
b) the representative sample contained more boys than girls
c) the representative sample contained more girls than boys.
d) the representative sample contained an equal number of boys and girls
Answer: Option C
( C ) The representative sample contained more girls than boys.
Step-by-step explanation:
If the probability of a chance event is 0, it is _________ to happen when compared to a chance event with a probability of 1.
If the probability of an event is 0, it is impossible to happen, in contrast to an event with a probability of 1, which is certain to happen. Probability is measured between 0 (impossible event) and 1 (certain event), with a familiar example being a coin flip where each outcome (heads or tails) has an equal probability of 0.5.
If the probability of a chance event is 0, it is impossible for it to happen when compared to a chance event with a probability of 1, which is certain to happen. The concept of probability is expressed as a number between zero and one, inclusive. An event with a probability of 0 is not expected to happen at all, while an event with a probability of 1 is considered an absolute certainty. In contrast, if two events are mutually exclusive, the probability that they both happen at the same time is zero (P(A AND B) = 0). A familiar example involving probability is flipping a fair coin, where there's a 1/2 chance of getting heads, meaning that the outcome of getting either heads or tails are equally likely; each has a probability of 0.5.
Use a graphing utility to find the sum of the geometric sequence.
15
n
5
Σ
6
n=1
The sum is
- (Round to three decimal places as needed.)
phony
Answer:
its 5
Step-by-step explanation:
bruh
The sum of the geometric sequence can be found by plugging the values into the formula S_n = a * (1 - r^n) / (1 - r) and calculating it using a graphing utility.
Explanation:The question pertains to finding the sum of a geometric sequence using a graphing utility. The general formula to find the sum of a geometric sequence is S_n = a * (1 - r^n) / (1 - r) where S_n is the sum of the first n terms, a is the first term, r is the common ratio, and n is the number of terms. In your case, our first term a is 15, common ratio r is 5, and number of terms n is 6.
Now, you need to plug these values into the formula and compute the sum. Here's how: S_6 = 15 * (1 - 5^6) / (1 - 5). Solve this equation using your graphing utility to get the sum of the sequence. Remember to round off to three decimal places as needed.
Learn more about Geometric Sequence here:https://brainly.com/question/33243139
#SPJ2
I need help with this maths equation
Answer: The length of the side of a square is 20 cm.
Step-by-step explanation:
Part 1: Find the x
First, you know that all sides of a square are equal, therefore, these two equations should be equal.
6x - 1 = 4x+6
Now, you simplify.
You would move whichever like term you want (either 6x over to the side of 4x (or vice versa) or -1 to the side of the 6 (or vice versa)
In my case, I will move 4x over to the other side.
Now I have:
6x - 4x -1 = 6
You can subtract like terms, in this case 6x and 4x:
2x - 1 = 6
Now you do the same, just with the constant numbers.
You would move over the -1 to try isolate the variable. (Keep in mind that the sign (positive or negative) changes when you move it to the other side.
2x = 6 +1
2x = 7
Then, you want to leave x by itself, so you have to divided 2x by 2. What you do to that side, you have to do to the other side.
2x/2 = 7/2
x = 3.5
Part 2: Plugging x into the equation
Now, since you have to x, you have to put it in any of the equations. Keep on mind it doesn’t matter, since both sides are the same anyway.
I‘m going to use the side 6x -1.
You now have to subsitute 3.5 for the x.
You now have:
= 6 (3.5) -1
= 21 -1
= 20
Therefore, your side is equal to 20 cm.
A sports physician conducts an observational study to learn the average amount of time that 3,000 swimmers in the town can hold their breath underwater. He uses 150 sampling of 60 people. The average of the means of all the samplings is 72.7, and the standard deviation is 0.92. This is a histogram of the sampling distribution of the sample mean. Based on this data, with a 95% confidence interval the researchers can determine that the actual average amount of time the entire population can hold their breath under water is? Between and
Answer:
95% confidence interval for the actual average amount of time the entire population can hold their breath under water is between 72.55 and 72.85.
Step-by-step explanation:
Confidence Interval for the population mean is basically an interval of range of values where the true population mean can be found with a certain level of confidence.
Mathematically,
Confidence Interval = (Sample mean) ± (Margin of error)
Sample Mean = 72.7
Margin of Error is the width of the confidence interval about the mean.
It is given mathematically as,
Margin of Error = (Critical value) × (standard Error of the mean)
Critical value will be obtained using the t-distribution. This is because there is no information provided for the population mean and standard deviation.
To find the critical value from the t-tables, we first find the degree of freedom and the significance level.
Degree of freedom = df = n - 1 = 150 - 1 = 149
Significance level for 95% confidence interval
(100% - 95%)/2 = 2.5% = 0.025
t (0.025, 1499) = 1.975 (from the t-tables)
Standard error of the mean = σₓ = (σ/√n)
σ = standard deviation of the sample = 0.92
n = sampling size = 150
σₓ = (0.92/√150) = 0.0751176854 = 0.07512
95% Confidence Interval = (Sample mean) ± [(Critical value) × (standard Error of the mean)]
CI = 72.7 ± (1.975 × 0.07512)
CI = 72.7 ± 0.1483574288
95% CI = (72.55, 72.85)
95% Confidence interval = (72.55, 72.85)
Hope this Helps!!!
Fiona says that 7% of the model is shaded.
Do you agree? Why or why not?
O Yes, because 7 parts are shaded.
O Yes, because 7 of 10 parts are shaded.
O No, because
parts shaded equals 70%.
O No, because 6 parts are shaded.
PLEASE HELP IM BEING TIMED ILL GIVE THE BRAINLIEST
Answer:
no because 7% would not equal a whole piece so D is your answer
Step-by-step explanation:
Answer:
C. No, because 7/10 parts shaded equals 70%.
Step-by-step explanation:
A sign company is creating a pennant in thr shape of an equilateral triangle. The length of each side is 12 inches. What is the altitude length so the company will know what size box to ship the pennant in?
Answer:24 in
Step-by-step explanation:
the answer is 6 sqrt 3 my shlime
Find the slope of the line represented by the table of values.
First, let's pick two pairs of coordinates from the table.
I picked (-3,6) and (1,-2).
Now, let's find the slope of the two coordinates. We are going to use the rise over run method.
-2 -6 /1 - -3 = -8/4
-8/4 = -2
The circular opening of an ice cream cone has a diameter of 7 centimeters. The height of the cone is 10 centimeters. What is the volume of the ice cream cone in cubic centimeters?
We have been given that the circular opening of an ice cream cone has a diameter of 7 centimeters. The height of the cone is 10 centimeters. We are asked to find the volume of the ice-cream cone.
We will use volume of cone formula to solve our given problem.
[tex]V=\frac{1}{3}\pi r^2 h[/tex], where
r = Radius of cone,
h = Height of cone.
We know that diameter is two times the radius, so radius will be half of diameter that is [tex]r=\frac{7}{2}[/tex].
[tex]V=\frac{1}{3}\pi\cdot (\frac{7}{2})^2\cdot 10[/tex]
[tex]V=\frac{1}{3}\pi\cdot (\frac{49}{4})\cdot 10[/tex]
[tex]V=128.2817[/tex]
[tex]V\approx 128.3[/tex]
Therefore, the volume of the cone would be approximately 128.3 cubic cm.
Find the perimeter of each polygon. Assume that lines which appear to be tangent are tangent.
Answer:
The perimeter would be 60 units; Option B
Step-by-step explanation:
~ Let us consider this problem. We know that tangent segments are congruent to one another provided they are from one endpoint. According to that, we would note that several segments are congruent to one another... ~
1. All the tangent segments that "sprout" from one vertex in this plane onto the circle circumscribed in this triangle are congruent, as noted before. According to that the side of the length 18 units has one part equivalent to 8.7 units.
2. With that being said the other part of the side with length 18 units, would be 18 - 8.7 = 9.3 units. Respectfully the side with length of 21.3 units has a part that is congruent to 9.3, by tangent ≅. This other part of the side with 21.3 units now = 21.3 - 9.3 = 12 units. Similarly the side with 8.7 as a part of it, has the other part ≅ to 12 units, it's measure thus also being 12 units.
3. Let us see the measures we have at this point. The perimeter would be ⇒ 8.7 + 8.7 + 9.3 + 9.3 + 12 + 12 = 60 units
The point P(x, y) lies on the terminal side of an angle a = Ū in standard position. What are the signs of the values of x and y?
Both x and y are positive.
Both x and y are negative.
x is positive, and y is negative.
x is negative, and y is positive.
The signs of x and y depend on the quadrant the point is located in, guiding whether each value is positive or negative.
The signs of the values of x and y depend on which side of the origin point P lies. When a point is in the first quadrant, both x and y values are positive.
In the second quadrant, x is negative, and y is positive.
In the third quadrant, both x and y are negative, while in the fourth quadrant, x is positive, and y is negative.
What is the measure of angle A?
(3y + 27)
What is the measure of angle B?
(5y - 3)
Answer: A = 72
B = 108
Step-by-step explanation:
5 people made the following grades on the last math test: 45, 83, 45, 77, 99. Use this information to find the mean.
what is the mean?
what is the range?
what is the median?
i will mark brainliest
Answer:
Mean is 69.8
Median is 77
Range is 54
Step-by-step explanation:
Mean is all numbers added up, then divided by the amount of numbers.
Median is the middle number of all numbers (To find this you put all numbers in order from least amount to highest amount, then you find the most center number of the rest).
Range is the highest number subtracted from the lowest number.
Answer:
Mean: 69.8
Range: 54
Median: 77
Step-by-step explanation:
The mean is the average of the numbers. The range is the largest number minus the smallest number. The median is the middle number.
The mean is 69.8.
[tex]\frac{45 + 83+45+77+99}{5} \\\frac{349}{5}\\69.8[/tex]
The range is 54.
99 - 45 = 54
The median is 77.
45 45 77 83 99
PLEASEEEE HELPPPPP MEEEE ITS PLATO!!!
Select the correct answer.
Consider the function given below.
f(x) = |x − 5| + 2
Which of the following statements about the y-values of the graph of the function is true?
A. The y-values are all less than or equal to 2.
B. The y-values are all greater than or equal to 2.
C. The y-values are all less than or equal to 5.
D. The y-values are all greater than or equal to 5.
Reset
Answer:
B
Step-by-step explanation:
No matter what x is, y will always be positive, because the absolute value of x-5 will always be positive. The smallest value that y can be is when x is 5, because then the absolute value of x-5 is 0, and then y is 2. Therefore, the correct answer is B. Hope this helps!
The y values are all greater than or equal to 2. The correct option is B.
What is a Function?A function is a law that relates a dependent and independent variable.
The function is
f(x) = |x − 5| + 2
The domain of the function is all negative and positive integers.
The range is all the possible function values, the function value will always be greater than or equal to 2.
At x = 5 , f(x) = 2
Therefore, the y values are all greater than or equal to 2. The correct option is B.
To know more about Function
https://brainly.com/question/12431044
#SPJ2
Which transformation will be equivalent to rotating a figure 90° counterclockwise
Answer:
Reflecting over the x-axis and then reflecting over the line y = x.
Step-by-step explanation:
A rotation 90° counterclockwise will map every point (x, y) to (-y, x).
Since the x- and y-coordinates are switched, this is not a reflection across the x-axis followed by a reflection across the y-axis.
Since the y-coordinate is negated and the x- and y-coordinates are switched, this is not a translation.
Reflecting across the x-axis will negate the y-coordinate, giving us (x, -y). Following this with a reflection across y=x will switch the coordinates giving us (-y, x). This is the correct transformation.
Answer:
he is correcting
Step-by-step explanation:
5.. A hemisphere has a radius of 9 centimeters. Find the volume of the hemisphere in cubic centimeters. Round to the
nearest tenth.
The volume of the hemisphere with a radius of 9 centimeters is 1526.8 cubic centimeters.
Explanation:To find the volume of the hemisphere with a radius of 9 centimeters, we use the formula for the volume of a sphere and then divide it by 2, because a hemisphere is half of a sphere. The volume V of a sphere is given by V = (4/3)πr³, where r is the radius.
Therefore, the volume of the hemisphere is V = ½ × (4/3)πr³. Plugging in the given radius:
V_hemisphere = ½ × (4/3)π × (9 cm)³
V_hemisphere = ½ × (4/3) × 3.1416 × 729 cm³
V_hemisphere = ½ × (4× 3.1416 × 243)
V_hemisphere = ½ × 3053.6288 cm³
V_hemisphere = 1526.8144 cm³
When rounded to the nearest tenth, the volume of the hemisphere is 1526.8 cm³.
In an all boys school, the heights of the student body are normally distributed with a mean of 71 inches and a standard deviation of 2.5 inches. Using the empirical rule, determine the interval of heights that represents the middle 95% of male heights from this school.
The Empirical Rule is being used to calculate the height distribution for the male students at a school. Based on the mean height of 71 inches and standard deviation of 2.5 inches, the height interval that represents the middle 95% of the male heights at this school is approximately from 66 to 76 inches.
Explanation:In the context of this question, we're using statistics, specifically the Empirical Rule, to find a range that represents the middle 95% of heights for the male students. The Empirical Rule states that, in a normal distribution:
About 68% of values fall within 1 standard deviation of the mean About 95% of values fall within 2 standard deviations of the mean About 99.7% of values fall within 3 standard deviations of the mean
Here, the mean height is 71 inches and the standard deviation is 2.5 inches, so applying the Empirical Rule- two standard deviations from the mean would capture about 95% of the heights:
Lower limit = Mean - 2(Standard Deviation)
= 71 - 2(2.5) = 66 inches
Upper limit = Mean + 2(Standard Deviation)
= 71 + 2(2.5) = 76 inches
So the height interval that represents the middle 95% of heights for the males at this school is 66 to 76 inches.
Learn more about Empirical Rule here:https://brainly.com/question/30700783
#SPJ12
Using the empirical rule and a normal distribution with a mean of 71 inches and a standard deviation of 2.5 inches, the middle 95% interval of male heights is between 66 inches and 76 inches.
Explanation:The student from the all-boys school is asking about an application of the empirical rule in statistics, which is useful for understanding data that follows a normal distribution. To find the interval that represents the middle 95% of heights, we apply the empirical rule, which states that 68% of the data falls within one standard deviation of the mean, 95% within two standard deviations, and 99.7% within three standard deviations. Since we are interested in the middle 95%, we calculate the interval by subtracting and adding two standard deviations from the mean.
Calculation steps:
Therefore, the middle 95% of the males heights from this school fall between 66 inches and 76 inches.
Learn more about Empirical Rules here:https://brainly.com/question/29309609
#SPJ11
Tonya baked two dozen cupcakes for the party. She frosted three-quarters of them with chocolate icing, and she frosted the rest with vanilla icing. How many of the frosted cupcakes had vanilla icing?
Answer:
6
Step-by-step explanation:
Two dozen cupcakes equals 24 cupcakes.
24/4=6
6*3=18
18 cupcakes are chochlate
24-18=6, so 6 are vanilla
Answer:
Step-by-step explanation:
If she baked two dozens, which are 24 cupcakes and 3 quarters are chocolate or 3/4 in fractional form. This would be:
24 divided by 3/4 would be: 18
24-18= 6
6 cupcakes are vanilla frosted.
Sales increased by 1/2 last month. If the sales from the previous month were $152,850 what were last months sales?
Answer
229275
Step-by-step explanation:
Take the previous month sales and cut that in half then add them to the same sales you just cut in half because they've increased by 1/2 and or 0.5
Jeff is planning to build a cylindrical water tank that has a capacity of no less than 80 cubic feet. Which of these combinations of the base radius (r) and the height (h) can he choose? Select all that apply. Use 3.14 for π.
Answer:
A good combination will be equal to or greater than 80 ft³. Example
r = 3 ft
h = 5 ft
volume = πr²h
volume = 3.14 × 9 × 5 = 3.14 × 45 = 141.3 ft³ is a good combination of radius and height .
Step-by-step explanation:
The volume of a cylinder = πr²h
Jeff is planning on building a cylindrical water tank that has a capacity of no less than 80 ft³. This means he want the volume of the cylindrical tank to be equal to or greater than 80 ft³(volume ≥ 80 ft³). The combinations of radius and height should be equal to or greater than 80 ft³ when they are inserted in the volume formula of a cylindrical water tank.
For example
volume = πr²h
r = 2 ft
h = 5 ft
volume = πr²h
volume = 3.14 × 2² × 5 = 62.8 ft³ is not a good combination of base radius and height because the volume is less than 80 ft³.
A good combination will be equal to or greater than 80 ft³. Example
r = 3 ft
h = 5 ft
volume = πr²h
volume = 3.14 × 9 × 5 = 3.14 × 45 = 141.3 ft³ is a good combination of radius and height .
At a children's party a 2 litre bottle of club orange is served in 125 ml cups. How many full cups of club orange can be served from the full bottle?
Answer:
16 cups
Step-by-step explanation:
Amount of club orange juice in bottle = 2 litre = 2000 ml
Capacity of cup = 125 ml
Number of cups in which 125 ml of orange juice can be served = 2000 ÷ 125
=16
What is the equation of this circle in standard form?
(x+1)2+(y−1)2=5
(x−1)2+(y+1)2=25
(x−1)2+(y+1)2=5
(x+1)2+(y−1)2=25
Answer:
c.(x - 1)2 + (y - 1)2 = 25
Step-by-step explanation:
Got it on edg 2021
Hope this helps :]
What is the length and width?
Answer:
L. W = 60. 30.
Step-by-step explanation:
Perimeter = 2L + 2W where W = width and L = the length, and L = 2W.
We have the following system:
2L + 2W = 180
L = 2W
Substituting L = 2W in the first equation we have:
2(2W) + 2W = 180
4W + 2W = 180
6W = 180
W = 180/6 = 30.
So L = 2*30 = 60.