Answer:
7.53 x 10²
Step-by-step explanation:
10² two time the 10 is 100
Answer:
Uuuuuuuh. What is n? There's no n in your question.
Step-by-step explanation:
Also that scientific notation equation there is false. It would be 7.53x10 to the 10th power.
A box contains 5 red marbles and 7 green marbles. Find the probability of drawing 2 red marbles WITHOUT REPLACEMENT
Answer:
5/33
Step-by-step explanation:
p(a)*p(b)
(Dependent events)
Answer:
5/33
Step-by-step explanation:
Sarah is doing research on the average age of first-year resident physicians. She wants her estimate to be accurate to within 1 year. From past studies, she knows the population standard deviation is 8.265. How many first-year residents must she survey to be 95% confident?
Answer: The number of first-year residents she must survey to be 95% confident= 263
Step-by-step explanation:
When population standard deviation ([tex]\sigma[/tex]) is known and margin of error(E) is given, then the minimum sample size (n) is given by :-
[tex]n=(\dfrac{z^*\sigma}{E})^2[/tex], z* = Two-tailed critical value for the given confidence interval.
For 95% confidence level , z* = 1.96
As, [tex]\sigma[/tex] = 8.265, E = 1
So, [tex]n= (\dfrac{1.96\times8.265}{1})^2 =(16.1994)^2\\\\= 262.42056036\approx263\ \ \ [\text{Rounded to the next integer}][/tex]
Hence, the number of first-year residents she must survey to be 95% confident= 263
What is 32 squared root
Answer: 4√2
Step-by-step explanation:
Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below.
Try multiplying 4*4*2 = 32. So you would bunch up those two 4's and so it would be the front of the answer. Then you would square root 2 because it is remaining.
~I hope I helped you! :)~
f (x)=-x2 + 4x, solve for f(3)
Answer:
f(3) = 6
Step-by-step explanation:
F(3)=-(3)2+4(3)
f(3) = -6 + 12
f(3) = 6
PLSSS HELP ME!!!!! I WILL!!!! MARK!!!!!
Answer:
23.1
Step-by-step explanation:
(4.2)(11)(0.5)
I drive at 55 miles per hour, and my trip will takr 5 hours. Proportional or non proportional
Answer:
Proportional
Step-by-step explanation:
Here, we want to know if the distance at the given time will be proportional
What we will do here is to simply divide the distance by the time
Mathematically, that will be 55 miles/ 5 hours = 11 miles / hour
So this means that in an hour, 11 miles will be traveled
This expression is proportional
If there are 4 ships at a port and the first one leaves and comes back every three weeks, the second one every nine weeks, the third one every 12 weeks, and the fourth every 24 weeks when will they all be in the port at the same time/when will they be there all at the same week
Answer: After 72 weeks they will be in the port at the same time.
Step-by-step explanation:
Given, Total ships = 4
The first one leaves and comes back every 3 weeks, the second one every 9 weeks, the third one every 12 weeks, and the fourth every 24 weeks .
So, the number of weeks they will take to be in the port at the same time = L.C.M. (3, 9, 12 , 24) (L.C.M. = least common multiple)
Since, 9= 3 x 3
12 = 2 x2 x 3
24 = 2 x 2x 2 x3
then, L.C.M. (3, 9, 12 , 24)= 2 x 2x 2 x 3 x3 =72
Hence after 72 weeks they will be in the port at the same time.
Leyla needs to hire a plumber to fix a few things around her house. She will need plumbing service for a total of 3 hours. Which plumbing service should she go with to save money? How much will she save? Justify your answer.
Great! So let’s solve for Joe’s Plumbing charges first. To find his price for 3 hours, solve J(3)=45(3)=$135.
Now let’s find Mark’s Plumbing charges. To find his price for 3 hours, plug 3 into M(t)=40t+25. So, M(3)=40(3)+25=$145.
Therefore, Joe’s Plumbing is cheaper than Matt’s plumbing by 10 dollars for a 3 hour job.
The graph of a function is shown below 8 Which inequality represents the domain of the function?
2/9x + 3 > 4 5/9
what graph shows the values that satisfy the expression
Answer:
Step-by-step explanation:
In graphing inequalities, the first thing to do is graph the equation first irregardless of the inequality symbol. In the given problem, the equation to be graphed is f(x) = 2/9x + 3. Since it has a general form of y=mx + b, this is a linear function. Plot the graph by assigning arbitrary points of x, then you get the corresponding f(x) values. Graph the x values against the f(x) values. The blue line the attached picture will be formed.
Next, you solve the equation by finding x. Just don't mind the inequality symbol:
2/9 x + 3 > 4 5/9
2/9x > 4 5/9 - 3
2/9x > 14/9
x > 14/9 ÷ 2/9
x > 7
Hence, the value of x must be greater than 7. To show this in the graph, find the line where x=7. Create a partition using that line, then shade the rest of the portion where x is greater than 7 until infinity.
Hey guys can you help me?
Answer:
850
Step-by-step explanation:
2×400=800
2×20=40
2×5=10
800+40+10=850
3/4(x+8) > 1/2(2x+10)
Calculate the slope between the points: (3, -5) and (6,-5)
а
m=10/3
b
m=0
C
m=undefined
d
m=-10/3
Answer:
B
Step-by-step explanation:
Slope = 0/3 = 0
What is the equation of the line that is parallel to the line y=3x-11 and
passes through the point (1, -6)?
O A. y=3x-9
B. y=-3x-3
O C. y=-1/3x-17/3
O D. y= 3x + 6
Answer:
A
Step-by-step explanation:
Answer:
A. y = 3x - 9
Hope this helps!
Find the slope.of the line that passes through (7,5) and (3,12) simplify it
Answer:
there's no way to simplify 7/-4
in other formula it may be -4/7 but still can't be simplify.
in other way it will become a decimal
Step-by-step explanation:
1. Remember to make it as if it was a table.
2. Then you see if your #s are going decreasing or increasing(if they are decreasing that's a negative right there)
3.In the formula that I did the result of y is going over x but still works ;v
The temp at a mountain base camp was -5 degrees Celsius on Wednesday. Thursday morning the temp was 2 degrees lower than it was on Wednesday. by Thursday evening the temp was 1 degree Celsius lower than it was that morning. What was the temp at Thursday morning.
A.-9
B.-8
C.-7
D.-6
Answer:
-8
Step-by-step explanation:
Add the following rational number.
-2/3+5/6
Answer:
1/6
Step-by-step explanation:
-2/3 = -4/6
so, -4/6 + 5/6 = 1/6
I went ____ the store. Jennifer wanted to go, ____. fill in will make brainiest
I went to the store. Jennifer wanted to go, too.
At a sale, the $39.97 original price of the shirt was marked down to $15.99. About
what percent of decrease is this?
3
Solve each equation.
r - 10 = 4
Answer:
r=14
Step-by-step explanation:
14-10=4
10+4=14
14-4=10
tada
Answer:
14
Step-by-step explanation:
r - 10 = 4
r = 4 + 10
r = 14
hope this helps you!
Simplify 15+(2/3x)−7−(5/6x).
PS
The / is not a division sign. 2/3 and 5/6 are fractions
A juice shop uses 1/2 of a bag of oranges to make 5 glasses of orange juice. What fraction of a bag of oranges did the shop use to make one glass?
Answer: 0.1 OR 1/10
Step-by-step explanation:
Think about it: There's 1/2 bag of oranges, and you wanna know what number of oranges used in the juice. Take 1/2, and divided it by 5. You get 0.1, then you should turn it into a fraction, giving you 1/10.
Answer: 0.1 OR 1/10
Step-by-step explanation:
Solve
7 1/2 ÷ (4 1/2 - 5 1/8)
Answer:
-12
Step-by-step explanation:
Answer:
[tex] \frac{71}{2} \div ( \frac{41}{2} - \frac{51}{8} )[/tex]
[tex] \frac{71}{2} \div ( \frac{164 - 51}{8} )[/tex]
[tex] \frac{71}{2} \div \frac{113}{8} [/tex]
[tex] \frac{71}{2} \times \frac{8}{113} [/tex]
[tex] \frac{284}{113} [/tex]
In the diagram below, find the value of y.
Answer:
y=130
Step-by-step explanation:
1) combine all like terms for the inside angles of the triangle
(3x-19) + (4x+8) + (x+7)3x-19+4x+8+x+78x-42) because the sum of all angles = 180 add that to the sum of all like terms
8x-4=180add 4 on both sides and divide both sides by 8this should be x=233) now you replace the x's with 23
(3(23) -19)69-19504) now we know that (3x-19)=50
5) take 180 and subtract 50
this is because y and (3x-19) creates a supplementary angle which also equals 1806) 180-50=130
In the diagram below, FAD || EHC, and ABH and BC are drawn. F А B H C If mZFAB = 48° and mZECB = 18°, what is mZABC? 1) 18° 2) 48° 3) 66° 4) 114° O Option 1 O Option 2 O Option 3 O Option 4
Answer : (3) 66°
Step-by-step explanation:
180 - (48 + 66)
180 + 114
=66
The measure of m ZABC is 66 degrees.
We have given that,
In the diagram below, FAD || EHC, and ABH and BC are drawn. F А B H C If mZFAB = 48° and mZECB = 18°.
We have to determine mZABC
What the angle?
An angle is formed when two straight lines or rays meet at a common endpoint. The common point of contact is called the vertex of an angle.
180 - (48 + 66)
180 + 114
=66
Therefore the measure of m ZABC is 66 degrees.
To learn more about the angle visit:
https://brainly.com/question/25770607
#SPJ2
Which one of these is a factor in this equation?
Answer:
A
Step-by-step explanation:
Because when a expression or number is multiplied by another expression or number it makes a equation
Nicole won 85 super bouncy balls playing
the bean bag toss at her school's game
night. Later, she gave four to each of her
friends. She only has 5 remaining. How
many friends does she have?
Answer:
20 friends
Step-by-step explanation:
85 balls - 5 remaining = 80
80 ÷ 4 balls each = 20 friends
A laptop computer at Best Buy costs $1250. The sales tax in Virginia is 5.3%. How much will you pay in total for the laptop including tax?
Answer:
66,25
Step-by-step explanation:
Answer:
$1316.25
Step-by-step explanation:
1250 * 5.3% = 66.25
1250 + 66.25 = 1316.25
let America be America meaning
Answer:
Let America be America Again Analysis In Langston Hughe's poem “Let America be America Again” he talks about how America should return to the way that it was perceived to be in the dreams before America was truly America. Throughout the poem, he uses various methods to evoke the patriotic images and dreams that he feels America should and will eventually be. Hughes states that America is supposed to be a place of equality for everyone including both white and colored people.
Step-by-step explanation:
If it was helpful can I plz have a brainliest
By the way, those aren't Z's, I'm not sure what they are.
Answer:
<a + <b=90°
50+4x=90
4x=40
x=10