Answer:
Step-by-step explanation:
This in standard form (Ax + By = C.) In order to make this slope-intercept form, you need to isolate y.
y = -1.5x + 2.75
y=mx + b is slope intercept, where m is the slope and b is the y-intercept.
In this case, -1.5 is the slope and 2.75 is the y-intercept.
Hope this helps!!
Which of these is an example of a continuous random variable?
A. Number of flights leaving an airport
B. Pieces of mail in your mailbox
C. Attendance at a sporting event
D. Time to run a race
Answer:
continues means that can be written in decimal like weight,height, distance(5.44km)
I think its D. is time decimal? Gods plan.
is y=x-3 a function or an equation
The commissioner of the state police is reported as saying that about 10% of reported auto thefts involve owners whose cars haven't really been stolen. What null and alternative hypotheses would be appropriate in evaluating this statement made by the commissioner?
A. H0: p ≥ 0.10 and H1: p < 0.10
B. H0: p ≤ 0.10 and H1: p > 0.10
C. H0: p > 0.10 and H1: p ≤ 0.10
D. H0: p = 0.10 and H1: p ≠ 0.10
The appropriate null and alternate hypotheses are (d) H0: p = 0.10 and H1: p ≠ 0.10
How to determine the hypotheses?From the question, we understand that:
The proportion of reports that have their cars stolen is given as 10%
Null hypothesis is represented with the equality sign.
So, the null hypothesis is H0: p = 0.10
The alternate hypothesis is represented with the unequal sign.
So, the alternate hypothesis is H1: p ≠0.10
Hence, the appropriate hypotheses are (d) H0: p = 0.10 and H1: p ≠ 0.10
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29 of the 42 athletes who participated in
the parkrun were female. Determine
the probability of randomly selecting
a male athlete from this group.
Please help me and I'll give you Brainly star
Assume that Fancy shoe warehouse has 500 pairs of women's shoes in stock. The distribution of the women's shoe sizes is approximately normal. The average size of women's shoes is size 8, with a standard deviation size of 4. Suppose that a random sample of 250 pairs of shoes is selected. What can be assumed about the distribution of the sample mean?
a) The distribution of the sample mean is skewed by the mean distribution theorem.
b) The distribution of the sample mean is approximately normal by the mean distribution theorem.
c) There is not enough information to make assumptions regarding the distribution of the sample mean.
d) The distribution of the sample mean is approximately normal by the central limit theorem.
e) The distribution of the sample mean is non-normal by the central limit theorem.
Using the Central Limit Theorem, the correct option regarding the shape of the sample mean is given by:
d) The distribution of the sample mean is approximately normal by the central limit theorem.
What does the Central Limit Theorem state?It states that, for a normally distributed random variable X, with mean \(\mu\) and standard deviation \(\sigma\), the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).
For a skewed variable, the sampling distribution is also approximately normal, as long as n is at least 30.
For this problem, we have a skewed underlying distribution, however the sample size is greater than 30, hence the sampling distribution of sample means is normal and option d is correct.
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100 POINTS!!
Describe two different ways that you can find the area of a kite.
Answer:
A kite is a type of a quadrilateral that has two pairs of equal, adjacent sides.[1] Kites can take the traditional look of a flying kite, but a kite can also be a rhombus or a square.[2] No matter what a kite looks like, the methods for finding the area will be the same. If you know the length of the diagonals, you can find the area through simple algebra. You can also use trigonometry to find the area, if you know the side and angle measurements of the figure.
Step-by-step explanation:
Answer:
If you know the length of the diagonals, you can find the area through simple algebra. You can also use trigonometry to find the area if you know the side and angle measurements of the figure
Step-by-step explanation:
hope this helps
For problems 4-8, a || b. State the postulate or theorem that justifies each conclusion.
Answers:
4. Alternate Exterior Angles Theorem
5. Corresponding Angles Postulate
6. Same-Side Interior Angles Theorem
7. Linear Pair Postulate
8. Vertical Angles Theorem
Given the figure of 2 parallel lines cut by a transversal, we are to state the postulate or theorem that justifies each conclusion.
4. ∠1 ≅ ∠8
If two parallel lines are cut by a transversal, then alternate exterior angles are congruent. This theorem is called Alternate Exterior Angles Theorem.
5. ∠3 ≅ ∠7
If two parallel lines are cut by a transversal, then its corresponding angles are congruent. This is called the Corresponding Angles Postulate.
6. ∠4 is supplementary to ∠6
If two parallel lines are cut by a transversal, then, interior angles on the same side of the transversal are supplementary. This is the Same-Side Interior Angles Theorem.
7. ∠3 is supplementary to ∠4
This involves two theorems, the Same-Side Interior Angles Theorem, and the Alternate Interior Angles Theorem, which state that if a parallel line is cut by a transversal, then, alternate interior angles are congruent.
Another way to prove this is by Linear Pair Postulate, which states that if two angles form a linear pair, then they are supplementary; that is, the sum of their measures is 180 degrees.
8. ∠7 ≅ ∠6
If angles are opposite each other and formed by two intersecting straight lines, then its vertical angles are congruent. This is called the Vertical Angles Theorem.
can u slove ASAP please
Answer:
B) 352
Step-by-step explanation:
45% = 0.45
640 x 0.45= 288
288 is how many students walked to school
So to find how many took the bus to school
640- 288= 352
Jonas is buying a three-day supply of camping snacks. An energy bar costs $1.50, and a bag of dried
mangoes costs $3.00. Jonas plans to have 7 snacks per day and can spend up to $45.00.
If p is the number of energy bars he can buy, and m is the number of bags of mangoes he can buy,
which system of equations and inequalities can be used to represent the possible number of each
snack he can buy?
p+m
21
=
21
p+m = 45
1.5p + 3m
p> 0
m >0
1.5p + 3m < 45
p> 0
m 2 0
1.5p + 3m
3p + 1.5m
p20
m 20
p+m = 21
8p + 1.5m
p> 0
m >0
Answer:
P+m=21
1.5p + 3m < 45
p > 0
m > 0
Step-by-step explanation:
Draw the base plan for the set of stacked cubes. Assume that no cubes are hidden form view.
Answer:
Given Figure has set of Stacked cubes.
To Draw the Base Plan, lets see its right side, Left Side and Front side view.
Right side:
It has 3 cubes in base.
2 cubes in 2nd layer clearly seen in figure and only 1 cube in 3rd layer.
Left Side:
It has 2 Cubes in base.
Both Cubes attached to 1st and 2nd cube of right side cubes.
Front Side:
It can be seen that, here base only has 2 rows of cubes.
Therefore, 1st Figure is correct Base Plan (or enclosed figure)
Note: Numbers in enclosed figure just shows the total no. of cubes in that stack.
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(sin30/1+cos30) + (1+cos30/sin30)
\( \sin(30 )\div 1 + \cos(30 ) + (1 + \cos(30 ) \div \sin(30) \)
Answer:
1
11111222223333334444554444667899ppojhgbsicudjejviwoiri3iw
Answer:
4
Step-by-step explanation:
\(\frac{sin 30}{1+cos 30} +\frac{1+cos 30}{sin 30} \\=\frac{sin 30(1-cos30)}{(1+cos30)(1-cos30)} +\frac{1+cos30}{sin 30} \\=\frac{sin30(1-cos30)}{1-cos^230 } +\frac{1+cos30}{sin 30} \\=\frac{sin 30(1-cos30)}{sin^2 30} +\frac{1+cos30}{sin30} \\=\frac{1-cos30}{sin30 } +\frac{1+cos30}{sin30} \\=\frac{1-cos30+1+cos 30}{sin 30} \\=\frac{2}{sin 30} \\=\frac{2}{\frac{1}{2} } \\=4\)
Two of the statements are true; one is a lie.
Select the one that is a lie.
Then explain your reasoning.
∠BAF and ∠CAF are complementary.
∠BAF and ∠BAC are adjacent.
∠DAC and ∠CAB are supplementary.
Answer:
The second one is the lie adjacent means next to each other there not therefore thats the lie hope that helps!
which expression is the same as multiply 3 and 2 add 5 to the product then multiply by 10?
Answer:
3 x 2 = 6 + 5 = 11 x 10 = 110
Answer:2435
Step-by-step explanation:your ervomd
QUESTION IN PICTURE
Please explain your answer in steps, thank you.
We can complete the blanks with the following ratios:
(7.5 mi/1) * (1 mi/ 5280 ft) * (400ft/1 yd) * (3 ft/1 ft) =33 flags
Since we do not need a flag at the starting line, then 32 flags will be required in total.
How to obtain the number of flagsTo solve the problem, we would first convert 400 yds to feet and miles.
To convert to feet, we multiply by 3. This gives us: 400 yd * 3 = 1200 feet.
To convert to miles, we would have 0.227 miles.
Now, we divide the entire race distance by the number of miles divisions.
This gives us:
7.5 mi /0.227 mi
= 33 flags
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Find the area and the circumference of a circle with a radius of 2km. Write your answers in terms of pi, and be sure to include the correct units in your answers.
The area and the circumference of the circle would be 4π square kilometers and 4π kilometers respectively.
Area and circumference of a circleThe area of a circle with a radius r is given by:
A = πr^2The circumference of a circle with a radius r is given by:
C = 2πr.Given that the radius of the circle is 2km, we can substitute r = 2 into these formulas to find the area and circumference:
Area = πr^2 = π(2km)^2 = 4π km^2Circumference = 2πr = 2π(2km) = 4π kmIn other words, the area and the circumference of the circle are 4π square kilometers and 4π kilometers respectively.
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What is the surface area of the cylinder with height 3 mi and radius 2 mi? Round your answer to the nearest thousandth.
Answer:
62.832 mi^2
Step-by-step explanation:
Top and bottom faces : 2^2 x pi = 4pi 4pi x 2 = 8 pi mi^2
Curved Surface Area= pi x diameter x height
= pi x 4 x 3 = 12 pi mi^2
So total SA= 8pi + 12pi = 20 pi mi62 = 62.832 mi^2 (nearest thousanth)
Answer:
SA=62.832 mi^2
Step-by-step explanation:
To find the surface area of a cylinder, you have to use the formula SA=2πrh+2πr^2. This means the surface area will be (2π x (3x2)) + (2π x (2x2)). If I simplify, I get 12π+8π. That's 20π. If I convert, I get approximately 62.8318531. In your case, I round to the nearest thousandth, and my final answer is 62.832.
What is the area of a circle whose radius is 6 ft?
6pie ft2
9pie ft2
36pie ft2
72 pie ft2
Answer:
36 pie ft2
Step-by-step explanation:
I just took the quiz, and got that question correct.
PLEASE NEED ANSWERS!
Answer: 1
Step-by-step explanation:
pls give simple working out
x is 146 degrees
This is because angle y and angle x are supplementary, which means their measures add up to 180 degrees
180 - 34 = 146
Answer: x = 146°
Step-by-step explanation:
Given that y = 35°, Using linear pair
x+y = 180
x+35=180(Substitute value of y)
x=180-35(Transposition Method)
x=145°
Zack invested $5,500 in a mutual fund with an offer price of $20.40 and a net asset value of $10.50. How many shares did Zack purchase? Round to thousandths.
Zack purchased approximately 269.608 shares of the mutual fund.
To determine the number of shares Zack purchased, we need to divide the total amount he invested by the offer price of the mutual fund.
Given:
Investment amount: $5,500
Offer price: $20.40
To calculate the number of shares, we divide the investment amount by the offer price:
Number of shares = Investment amount / Offer price
Number of shares = $5,500 / $20.40
To simplify the calculation, we can divide both the numerator and denominator by 10. This does not change the result, but it makes the division easier:
Number of shares = $550 / $2.04
Now, we can perform the division:
Number of shares ≈ 269.6078
Since we are asked to round to thousandths, we can round the result to three decimal places:
Number of shares ≈ 269.608
Therefore, Zack purchased approximately 269.608 shares of the mutual fund.
It's important to note that in financial calculations, it is common to round the number of shares to the nearest whole number since partial shares are not typically traded. In that case, Zack would have purchased 270 shares. However, since the question asks for the answer rounded to thousandths, we have provided the answer as 269.608 shares.
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My thousands digit is 4
- My hundreds digit is 4 less than the digit in the thousands place
- The sum of my tens digit and ones digit is 7
- My tens digit is 3 more than my ones digit
- The digits in the thousands period have a sum of 10
- My first digit is half the digit that immediately follows it.
The values In wxyz are mathematically given as
W=4
y=5
X=0
What is the values In XYZ?My one's digit and my tens digit together make up a total of seven.My one digit has three more digits than my tens digit does.
Let the equation for the number be: wxyz.
Digits at tens place = yz Diglt at ones place = zGenerally, the equation for is mathematically given as
z+y=7 ......1
y=2+3 .......2
solving further
z+3+z-7
2z 7-3
z=2
Putting the value of z Within the second equation:
y=z+3 y=2+3
y=5
1. The digit in the thousands place of my number is 4, and
2. The digit in the hundreds place is four fewer than the digit in the thousands place.
W=4
X=w-4
x=4-4
X=0
In conclusion, the values In wxyz are
W=4
y=5
X=0
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PLEASE HELP ME PLEASE!!
hypotenuse (h)=?
perpendicular (p)=3
base(b)=2
using pythagoras theorem
h²=p²+b²
h²=3²+2²
h²=9+4
h²=13
h=√13
hypotenuse (h)=12perpendicular (p)=10base(b)=?using pythagoras theorem
b²=h²-p²
b²=12²-10²
b²=144-100
b=√44
b=2√11
Which of the following is equivalent to the radical expression below when
x>=2?
(√x-2)(√x+9)
The equivalent expression of \((\sqrt x - 2)(\sqrt x + 9)\) is \(x + 7\sqrt x - 18\)
How to determine the equivalent equation?The expression is given as:
\((\sqrt x - 2)(\sqrt x + 9)\)
Expand the expression
\(x - 2\sqrt x + 9\sqrt x - 18\)
Evaluate the like terms
\(x + 7\sqrt x - 18\)
Hence, the equivalent expression of \((\sqrt x - 2)(\sqrt x + 9)\) is \(x + 7\sqrt x - 18\)
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em um campeonato de ciclismo um atleta precisou percorrer 54 000 m para a faixa de Chegada Sabendo que Ele demorou 7 2000 Segundos a Concluir a Corrida qual foi dua Velocidade Media em Km/h?
Answer:
Average speed in km / h = 2.7 km/h
Step-by-step explanation:
Given:
Total distance = 54,000 m
Total time = 72,000 sec
Find:
Average speed in km / h
Computation:
Average speed = Distance / Time
Average speed = 54,000 / 72,000
Average speed = 0.75 m/s
1 m/s = 3.6 km/h
So,
Average speed in km / h = 0.75 x 3.6
Average speed in km / h = 2.7 km/h
The scores on a quiz are normally distributed the mean of a quiz is 88 and the standard deviation is two. Six by using the empirical rule what score fall two standard deviations from the mean
82.8 to 93.2
1) Since we're told to use the empirical rule, we're basically saying that:
The above graph will be used.
2) As we were told the mean is 88 and the standard deviation is 2.6
So we can write out the following about it:
So we can tell that the scores that fall within 2 standard deviations from the men are between 82.8 and 93.2
Write the equation of the horizontal line that goes through the point (2, 4)
Answer:
y=2
Step-by-step explanation:
Translate the phrase into an Algebraic expression The sum of 6 and b
The translation of the phrase into an algebraic expression which is the sum of 6 and b is 6+b.
What is an algebraic expression?It should be noted that an algebraic expression is used in Mathematics to show the relationship between the terms that are given. The concept of utilizing letters or alphabets to convey numbers without defining their exact values is known as algebraic expressions.
We learned how to express an unknown value using letters like x, y, and z in the fundamentals of algebra. Here, we refer to these letters as variables. Variables and constants can both be used in an algebraic expression. A coefficient is any value that is added before a variable and then multiplied by it.
In this case, we want to translate the phrase into an algebraic expression. The phrase is the sum of 6 and b. This will simply be:
= 6 + b
Therefore, the expression is 6+b.
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Factor the polynomial and use the factored form to find the zeros. (Enter your answers as a comma-separated list. Enter all answers including repetitions.)
P(x) = x3 − 2x2 − 15x
x =
Answer:
-3, 0, 5
Step-by-step explanation:
You want the zeros of P(x) = x³ − 2x² − 15x using the factored form.
Factored formWe notice right away that x is a factor of every term. Factoring that out gives us a quadratic to factor:
P(x) = x(x² -2x -15)
To factor this, we need two factors of -15 that have a sum of -2. The factors -5 and +3 have those properties. That means our factored form is ...
P(x) = x(x +3)(x -5) . . . . factored form
ZerosThis product will be zero when any of its factors is zero. Considering them one at a time, we find the zeros of P(x) to be ...
x = 0
x +3 = 0 ⇒ x = -3
x -5 = 0 ⇒ x = 5
The zeros of P(x) are -3, 0, 5.
If x=2y+5 and x=3y-6, what is the value of x?