Answer:
cos270° has a value of 0
Step-by-step explanation:
cos 270°
Adam loves to write. For an assignment at school, he has to write a paper about a book
they just read as a class. Before dinner, he had already written a few words, but after
dinner he began to type at a constant rate. This scenario is shown here W(m)= 25m+200
where m represents the amount of minutes he spends typing. How many words has he
written after 45 minutes?
Answer:
25(45) +200= 1125+200=1325
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Answer:
I believe it would be - (n+4) x 2
Step-by-step explanation:
Answer:
2(n + 4)
Step-by-step explanation:
we take her number, n, and add 4
= n + 4
Then we double that. So that can either be 2n + 2(4) = 2n + 8, or 2(n + 4) which tells you to multiply everything in the parentheses by 2.
Please let me know if you have questions.
I need help please. I been here for 15 minutes.
Answer:
22
Step-by-step explanation:
first i would find out the radius and then deviede byt that
La natalidad hace que la población aumenta o disminuya??
Step-by-step explanation:
la natalidad hace que la poblacion aumente
High blood pressure has been identified as a risk factor for heart attacks and strokes. The National Health and Nutrition Examination Survey reported that the proportion of U.S. adults with high blood pressure is 0.3. A sample of 38 U.S. adults is chosen. (a) Is it appropriate to use the normal approximation to find the probability that more than 40% of the people in the sample have high blood pressure? If so, find the probability. If not, explain why not. (b) A new sample of 80 adults is drawn. Find the probability that more than 40% of the people in this sample have high blood pressure. (c) Find the probability that the proportion of individuals in the sample of 80 who have high blood pressure is between 0.23 and 0.32.
Answer:
The National Health and Nutrition Examination Survey reported that the proportion of U.S. adults with high blood pressure is 0.3. A sample of 38 U.S. adults is chosen. a. Is it appropriate to use the normal approximation
A plane flew 390 nautical miles in 45 min. Find its average speed in knots ( nautical miles per hour)
Answer:
451.87 knots.
Step-by-step explanation:
Hope this helps
The average speed of the plane is 520 Knots.
What is the speed of an object?Speed is the rate at which an object's position changes, measured in meters per second. For example, if an object starts at the origin, and then moves three meters in three seconds, its speed is one meter per second. The equation for speed is simple: distance divided by time
Given here: Distance travelled 390 nautical miles and t is 45 mins or 0.75 hours
Thus speed of the plane is = 390/0.75
= 520
Hence, The average speed of the plane is 520 Knots.
Learn more about the speed of an object here:
https://brainly.com/question/28224010
#SPJ2
On a hospital floor, 16 patients have a disease with a mortality rate of 0.1. Find the probability that two of them die. Round to three decimal places
Answer:
The probability that two of them
die is 0.257
Step-by-step explanation:
From the question, we have that the mortality rate is 0.1
So the probability that they will survive is 1-0.1 = 0.9
Now, we want to check that two will die
We are going you use the Bernoulli approximation of the Binomial theorem as follows
= nCr * p^n * q^(n-r)
where n = 16
r = 2
P = 0.1
q = 0.9
Substituting these values;
14 C 2 * 0.1^2 * 0.9^12
= 0.257
1) Hank is looking to sell his motorcycle. He compiles these prices from the newspaper for bikes just like his
$2,000; $ 16,900; $15,100; $14,500; and $17,000. Is it more reasonable for Hank to use the mean or the
median to get a reasonable estimated price for his bike?
Answer:
The median
Step-by-step explanation:
If you look at the sample section of the 5 different prices, you can see that $2,000 is very far away from the rest of the prices, which range from $14,000 to $17,000. This $2,000 is an outlier, and is likely not accurate in predicting reasonable prices for Hank's bike, so it should not be a factor in his decision or contribute to the mean value.
Three sides of a quadrilateral are the same length, g, The length of the fourth side is 7 inches,
The perimeter of the quadrilateral is 10 inches,
Write an equation that represents
the situation
7
3
7
Answer:
Step-by-step explanation:
Let s represent the length of each of the three sides mentioned. The length of the fourth side is 7 inches. Adding the lengths of the four sides together yields 10 inches: g + g + g + 7 = 10 (inches)
Then 3g + 7 = 10, or 3g = 3, or g = 1.
This equation is OK, but there's no solution, since 3g or just 3 is less than 7. With side lengths 1, 1, 1, 7, we cannot draw a quadrilateral.
Y = 2x + 3 The 3 represents
a. slope
b. y-intercept
c. both
d. neither
Answer:
b. y-intercept
Step-by-step explanation:
The slope=the number/s before the x
In the xy-plane, the graph of the equation y = x2 +2 intersects the x-axis in how many points?
O Zero
O One
Ο Two
O More than two
Answer:
0
Step-by-step explanation:
Here, we want to get the number of times the graph of the function intersects the x-axis
Mathematically we need to know the number of roots the function has
We can get this by the use of the discriminant
This is:
D = b^2 - 4ac
b is the coefficient of x which is 0 here
a is the coefficient of x^2 which is 1 here
c is the last number which is 2
So;
D = 0^2 -4(1)(2) = 0-8 = -8
the discriminant value is negative
This means there are no real roots
x-y plane is used for real numbers and thus since there are no real roots, the graph of the equation will not intersect any point on the x-axis
describe how 20,000 and 2,000 related
Answer:
They both have 3 zero's both have the number 2
They both are numbers
What is 2/5% as a fraction?
You are a business developer and charge $45 for a site visit plus additional $24 per hour for each hour you spend training employees. Write and solve an equation to determine how many total hours you have to work to earn $810 working hours at two separate businesses.
Answer: [tex]28.3\ hr[/tex]
Step-by-step explanation:
Given
Charge of the site visit [tex]\$45[/tex]
Additional charge per hour is [tex]\$24\ \text{per hour}[/tex]
He eaned [tex]\$810[/tex]
Suppose he worked for x hours
[tex]\therefore 810=45+24x\\\text{On solving}[/tex]
[tex]\Rightarrow 765=24x\\\Rightarrow x=28.3\ hr[/tex]
Please answer quick! God bless.
A movie theater offer two different plans to see movies. Plan One has members join for $75 and then pay only $2 per movie. The second plan offers movies for $5.75 per movie. For what number of movies will the costs be the same for both Plan One members and Plan Two members?
Answer:
I d k
Step-by-step explanation:
5.75x10=57.50
57.5+11.5=69(nice)
69+5.75= 74.75
74.75+5.75=80.5
80.5+5.75= 86.25
86.25+5.75=92
basically this formula should help
i tried to figure out on the way
What is the slope of the line that passes through the points (-8, -6)(−8,−6) and (-18, 6) ?(−18,6)? Write your answer in simplest form.
6 groups of 7 = 5 groups of 7 plus
Answer:
1 group of 7
Step-by-step explanation:
Shelly's age plus Mary's age is less than 36. Mary is 15 years old. Write the equation thatrepresents the problem.
sorry I answered wrongly
Answer:
Shelly's age is less than 21
Step-by-step explanation:
S+15 < 36
S < 21
For the following sequence determine the common difference (if it is an arithmetic
sequence) or the common ratio (if it is a geometric sequence).
36, 60, 100,...
the ratio of wins to games played fir certain siftball team.is 2 to 3 I the team played 33 games how many game did the team win PLS HELP
Answer:22
Step-by-step explanation:
tell me if you want the explanation in the comments
Answer:
22
Step-by-step explanation:
If the total is 33 games ,33 divided in 3 parts,each part is 11
Of the 3 parts the team won 2 parts
so 2x11 = 22
hey !! what's the answer ??
[tex] \sqrt{39 \times 13 \times 3} [/tex]
Answer:
39
Step-by-step explanation:
sqrt(39*13*13)
= sqrt(1521)
= 39
What is the average of 62 and 127
Answer:
Step-by-step explanation:
The answer is 94.5
Answer:
94.5
Step-by-step explanation:
You would find that by adding up all the numbers in a data set the dividing them by how many number are in the data.
For example:
127 + 62 = 189
And since there are two numbers in the data set, you would divide 189 by 2 and get 94.5 as your answer.
The product of two rational numbers is irrational.
Answer:
The statement is false.
Step-by-step explanation:
Here we need to remember some things:
Integer numbers are closed under multiplication.
This means that for two integers a and b, the product a*b is also an integer.
A rational number is a number that can be written as the quotient of two integer numbers.
An irrational number is a number that can't be written as the quotient of two rational numbers.
Now let's see the statement:
"The product of two rational numbers is irrational."
The product of two rational numbers is written as:
[tex]\frac{a}{b} *\frac{c}{d}[/tex]
Where a, c, b, and d are integers.
We can rewrite that product as:
[tex]\frac{a*c}{b*d}[/tex]
Because of the first property, we know that a*c is an integer, and b*d is also an integer, so here we have a quotient of two integer numbers, so this is a rational number.
Then the product of two rational numbers is a rational number.
Then the statement is false.
2. Choose the appropriate symbol to make the following statment true. 0.13_0.0872
a. >
b.<
c.=
d.none of these
Answer:
>
Step-by-step explanation:
I need help on these 4. Please help me. Don’t put a link. Please help me.
Solve the inequality
Answer: x ≥ -80
Step-by-step explanation:
-1/2x ≤ 40
1/2x ≤ -40
x ≥ -80
What is the l25I
1. -25
2. 25
3. 52
4. -52
Giving brainlist to whoever answers this question
Answer:3x +56
Step-by-step explanation:
In how many ways can a supermarket chain select 4 out of 12 possible sites for the construction of a new supermarket?
Answer:
6
Step-by-step explanation:
what is the slope and y-intercept? write the equation. also sorry it’s so late
(y2-y1)/(x2-x1)
19-10=9
6-3=3
9/3=3
slope: 3
y-int: 1
y=3x+1