Answer:
ddfgvf
Step-by-step explanation:
vcfdh
510.4 in
Scientific Notation I need an answer please
Answer:
5.104 X 10^2
Step-by-step explanation:
Answer:
510.4 trillion in scientific notation = 5.104 × 1014.
Step-by-step explanation:
This can also be expressed as 5.104 × 10^14, using the caret symbol, or as 5.104e+14, which is called 510.4 trillion in e-notation,
What type of angle is shown below?
O acute
O obtuse
Oright
O straight
Answer:
Straight
Step-by-step explanation:
Its 180° or a straight line
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
Straight po di kopo sure
Step-by-step explanation:
Hope it helps
The mean annual premium for automobile insurance in the United States is $1,499. Being from Pennsylvania, you believe automobile insurance is cheaper there and wish to develop statistical support for your opinion. A sample of 25 automobile insurance policies from the state of Pennsylvania showed a mean annual premium of $1,440 with a standard deviation of s = $150.
a. Develop a hypothesis test that can be used to determine whether the mean annual premium in Pennsylvania is lower than the national mean annual premium.
b. What is a point estimate of the difference between the mean annual premium in Pennsylvania and the national mean (to the nearest dollar)?
Answer:
a) Then, t(s) is in the rejection region. We can not support that the mean annual premium in Pennsylvania is lower than the national mean annual premium
b) The point estimate of the difference is 59 $
Step-by-step explanation:
From sample we get:
sample size n = 25
annual mean x = 1440
standard deviation of the sample s = 150
mean for the mean annual premium μ = 1499
Hypothesis Test:
Null Hypothesis H₀ x = μ
Alternative Hypothesis Hₐ x < μ
Alternative Hypotesis indicates that the test is a one-tail test to the left
Let´s assume confidence Interval 95 % then α = 5 % α = 0.05
As n < 30 and we assume normality we will make a t-student test
degree of freedom df = n - 1 df = 24
With df = 24 and α = 0.05 and from t-student table we get t(c) = - 1.711
To calculate t(s) we apply:
t(s) = ( x - μ ) / s/√n
t(s) = ( 1440 - 1499 ) * 5 / 150
t(s) = - 59/ 30
t(s) = - 1.96
Comparing t(s) and t(c)
|t(s)| > |t(c)|
Then, t(s) is in the rejection region. We can not support that the mean annual premium in Pennsylvania is lower than the national mean annual premium.
b) The point estimate for the difference is : x - μ = 59 $
The measures of the angles in triangle UVW are shown in the diagram below.
Answer:
(B) 39°
Step-by-step explanation:
30° + 24° + (3x -9°) = 180°
3x = 180° - 30° - 24° + 9°
3x = 117°|:3
x = 39°
Josef got 80% on a true/false science quiz. He got 20 questions right. How many questions were on the test? (Show all of your calculations)
Carter plans to read 4 books during summer break: Charlottes web, Grasshopper summer, Diary of a Wimpy Kid, and Diary of a Wimpy kid 2. He wants to read diary of a wimpy kid 2 after diary of a wimpy kid. How many different orders can he read his books in?
Answer: 32
Step-by-step explanation:
4 x 4 x 4
Answer:12
Step-by-step explanation:
Just got it from the practice Test.
Please Brainly help me I beg you - no links please
Answer:
156
The angle measurement is reasonable. It must be less than 180 which is a straight line
Step-by-step explanation:
Vertical angles are equal
3x = x+104
Subtract x from each side
3x-x = x+104-x
2x = 104
Divide by 2
2x/2 = 104/2
x = 52
3x = 3*52 = 156
The angle measurement is reasonable. It must be less than 180 which is a straight line
wright 702,001 in expanded form
Answer:
700,000 + 2,000 + 1
Step-by-step explanation:
A quality control inspector has drawn a sample of 10 light bulbs from a recent production lot. Suppose 20% of the bulbs in the lot are defective. What is the probability that exactly 6 bulbs from the sample are defective? Round your answer to four decimal places.
Answer:
33.33 repeating percent.
Step-by-step explanation:
So using the 20 percent, we can guess there will be 2 bulbs that are defective in the sample. So 2/10. But we are guessing there will be 6;6/10. We alreadly know the proablity of that is low. To be exact 2/6 (as they are both over ten we can get rid of that) or 1/3, or 33.333 repeating percent.
Hope this helps!
NO FILES HELP WHAT IS THE ANSWER Given Circle Z with tangents XW and XY what is the measure of arc WVY
Answer:
c. 250
Step-by-step explanation:
12. Translate “the sum of 6 and the product of 8 and x” into a mathematical expression
Answer:
6+8x
Step-by-step explanation:
The profit that a local technology company makes, plx), in thousands of dollars, based on the selling price of its tablets, x, in dollars,
is modeled on the graph below.
Tablet Sales
P(x)
30
20
10
-400-300-200-100
100 200 300 4001
-20
For what selling prices of tablets would the company not be in debt?
Answer:
(100,300)
Step-by-step explanation:
Just did it and got it right.
instructions: Find the slope of the line through the points (6, 16) and \ -6,4) Make sure to simplify fractions and enter your answers with a foward slash (i.e. "/"). If the slope is undefined enter "undefined."
9514 1404 393
Answer:
1
Step-by-step explanation:
The slope formula is useful for this.
m = (y2 -y1)/(x2 -x1)
m = (4 -16)/(-6 -6) = -12/-12
m = 1
The slope of the line through the given points is 1.
Find the function value, if possible. (If an answer is undefined, enter UNDEFINED.)
f(x) = 3x - 4
f(x + 2)
Answer:
f(x + 2) = 3x + 2
Step-by-step explanation:
Simply replace wherever you find x in the function f(x) with (x + 2), like so:
f(x + 2) = 3(x + 2) - 4
f(x + 2) = 3x + 6 - 4
f(x + 2) = 3x + 2
Please help need this rn
Answer:
41
Step-by-step explanation:
0,5r = 20,5|:0,5
r = 41
In the accompanying diagram, triangle ABC is similar to triangle RST, BC= 12, AC=15, and ST= 8. Find RT.
Answer:
10
Step-by-step explanation:
ABC is similar to RST,
so BC is corresponding to ST, and AC is corresponding to RT
BC=12 and ST=8
so the scale factor from RST to ABC is 1.5 and the scale factor from ABC to RST is 2/3 because 12*(2/3) is 8, and 8*1.5 is 12.
now apply this to AC to find RT
AC=15
15*(2/3)=10
10*1.5=15
RT =10
What is the probability of rolling an even
number on a 7 sided number cube?
Answer: 1/3
Step-by-step explanation: if the cube has 7 sides. If they are numbered 1, 2, 3, 4, 5, 6, 7 (seven possibilities) and the even ones (2, 4, 6,) are successes, then the probability of rolling an even number on the first roll is 3/7 = 1/3.
Which of the following elements is present in the above spectrum
Answer:
umm sorry but you haven't given the examples yet!!
Suppose you can make your own ice cream cone by choosing the type of cone, the flavor of ice cream, and the toppings. The number of choices is 4 cones, 6 flavors, and 14 toppings. What principle would you use to determine how many different dinner menus can be chosen?
Answer:
ELHLADOE
Step-by-step explanation:
The number of ways using permutation and combination of ice cream is = 4*6*14 ways.
What are permutation and combination?The distinctive methods of arranging a set of items right into a sequential order are termed Permutations. one of the several methods of choosing items from a massive set of gadgets, without thinking about an order is termed a mixture.
mixture and permutation are extraordinary methods of grouping elements of a set into subsets. In aggregate, the factors of the subset may be listed in any order. In a permutation, the elements of the subset are indexed in a particular order.
explanation:
using multiplication rule of probability.
=The number of choices is 4 cones
= The number of choices of flavour = 6
= The number of choices topping = 14
Hence total combination is = 4*6*14
336.
A permutation is a mathematical calculation of the variety of approaches a selected set can be organized, wherein the order of the arrangement topics.
Learn more about combination and permutation here:-https://brainly.com/question/11732255
#SPJ2
At a pizza restaurant, a personal pizza has a radius of 10 centimeters and costs $5. Another restaurant takes a pizza with radius 30 centimeters, cuts it into 8 slices of equal area, and charges $5 per slice. Which is a better deal? Explain your reasoning.
Answer:
Remember that the area of a circle of radius R is given by:
A = pi*R^2
pi = 3.14
We know that:
Personal Pizza: radius = 10cm
price = $5
The area of pizza that you are getting is:
A = 3.14*(10cm)^2 = 314 cm^2
In the other case, we have a pizza with radius of 30 cm, cutted into 8 slices, such that each slice costs $5.
Then, if yo pay $5, the area of pizza that you get is an eight of the area of a circle of radius 30cm
This is:
A' = (1/8)*(3.14*(30cm)^2) = 353.25 cm^2
We can see that in the second case the area is larger, then the second option is the better deal, as you are getting a larger pizza area for the same price.
What is the value of 3 ^ -3
Answer:
[tex]\frac{1}{27}[/tex]
Step-by-step explanation:
[tex]3^{-3}\\=\frac{1}{3}^{3}\\=\frac{1}{27}[/tex]
PLEASE HELP! So for this problem I tried multiplying, adding, using square roots, however, my answers were all wrong. How do I solve this problem?
9514 1404 393
Answer:
384 square yards
Step-by-step explanation:
The area of a rectangle is given by the formula ...
A = LW . . . . . where L and W stand for Length and Width
Using the given dimensions, you find the area to be ...
A = (24 yd)(16 yd) = 24×16 yd² = 384 yd²
The area of the figure is 384 square yards.
Find n(A) for the following set.
A = the set of integers between – 30 and 30
Answer:
n(A) =61
Step-by-step explanation:
From - 30 to 30 there are 61 numbers
Therefore number of elements in A is 61
Graph the inequality 7≤ y -3x < 11
Answer:
1
Step-by-step explanation:
Molly wants to buy a raincoat for her pet. If the raincoat cost $39.99 and has a sales tax rate of 7%. What will be the final price (with tax) of the raincoat?
Answer:
$42.7893 or $42.79 rounded
i need help on number 1
Answer:
Step-by-step explanation:
area of circle=πr^2
=3.14*5^2
=3.14*25
=78.5 ft^2
Please help!! Solve for x. Assume that lines which appear to be diameters are actual diameters.
Answer:
A)-4
Step-by-step explanation:
180=120+x+64
x=180-120-64
x=-4
nine of 20 people surveyed preferred chocolate ice cream to vanilla ice cream . what percentage prefered chocolate ice cream? what fraction prefered vanilla ive cream
Answer:
percent: 45%
fraction: 11/20
Step-by-step explanation:
graph the following inequality
[tex]7x - y \geqslant 14[/tex]
PLEASE HELP ME !
Answer:
I can't exactly draw this out on this website, but I can tell you how to do it:
First, solve the inequality so it resembles a function:
7x - y ≥ 14
-y ≥ -7x + 14
y ≤ 7x - 14 (Both side multiply by -1)
Then, graph y = 7x - 14
Draw a straight line (Don't do the dotted lines because it's not > or <)Here's a couple of points to get started: (0, -14), (1, -7)Finally, because y is less than/equal to 7x - 14, shade in the area under/below the line(where the y-values are smaller).
Hope it's helpful enough
Need help ASAP! What is the value of X? :)
Answer:
x = 46
Step-by-step explanation:
Since the angle that is not marked is a vertical angle, is must be the same in each triangle
The sum of each triangle is 180, set them equal and subtract the same angle from each side, this leaves the equation
53+85 = x+92
138 = x+92
138-92 =x
46 =x