Answer:
3(x+2) and 3x+6 are equivalent.
3(2x) is not.
Step-by-step explanation:
Simplify the expressions first.
1. 3(x+2) becomes 3x+6
2. 3x + 6
3. 3(2x) becomes 6x
The first and second are equivalent to each other.
The third one is not equivalent.
Hope this helped :)
To what subset(s) of the real numbers does the
number - 0.45 belong? Explain your answer.
Answer:
Integers, and rational, I know this because -0.45 is a negative number and because rational numbers include all categories.
Step-by-step explanation:
Evaluate f(x) = 1/4x for x = -5.
A. 20
B. -1/20
C. -1 1/4
D. -4/5
Answer: C
Step-by-step explanation:
1/4th of -5 is -1.25 so in fractions that is -1 1/4 (ANSWER IS C)
the answer is C
Quadrilateral ARMY is rotated 90° about the origin.
Answer:
what's the question??
Classify the following triangle. Check all that apply.
Answer: A.) obtuse & F.) isosceles
Explanation:
Obtuse because the large angle is greater than 90°
isosceles because two of the sides are equal length
someone please answer!
Answer:
m = -2
Step-by-step explanation:
To find the slope of a line, use the equation:
m = y2 - y1 / x2 - x1
Then, substitute in values:
m = 54 - 58 / 2 - 0
m = -4 / 2
m = -2
Answer:
c
Step-by-step explanation:
you need to count step by step
What is the solution of -28=22-5x?
Answer:
10=x
Step-by-step explanation:
Answer:
x=10
Step-by-step explanation:
Use Symbolab.com
HELP ME SOLVE THE LAST ONE, IF THEYRE ALL WRONG CORRECT THEM, TYYYYYY
Answer:
they are right
Step-by-step explanation:
Answer:
you have the 4 and 7 backwards and the last one they r losing about .75 gallons hope this helps
Find the midpoint of the segment having the given endpoints.
(8,4) and (-5,-9)
Answer:
-5.6
Step-by-step explanation:
One day in July, the temperature at ground level at the airport was 90°. A pilot reported
the temperature at 10,000 feet was 50°. How much did the temperature drop per 1000
feet?
Answer:
it droped 40 degres
Step-by-step explanation:
Answer:
The temperature dropped 4 degrees per 1000 feet.
Step-by-step explanation:
90 - 50)/(10,000:1,000) = 40/10 = 4 degrees per 1000 ft
g In 2013, the Pew Research Foundation reported that 43% of U.S. adults report that they live with one or more chronic conditions. However, this value was based on a sample, so it may not be a perfect estimate for the population parameter of interest on its own. The study reported a standard error of about 1.7%, and a normal model may reasonably be used in this setting. Create a 95% confidence interval for the proportion of U.S. adults who live with one or more chronic conditions. Report your answer as a percentage rounded to 3 decimal places. We are 95% confident that the true proportion of U.S. adults who live with one or more chronic conditions is between % and % Submit All Parts Question 6
Answer:
We are 95% confident that the true proportion of U.S. adults who live with one or more chronic conditions is between 39.7% and 46.33%
Step-by-step explanation:
From the question we are told that
The sample proportion is [tex]\r p = 43\% = 0.43[/tex]
The standard error is [tex]SE = 0.017[/tex]
Given that the confidence level is 95% then the level of significance is mathematically represented as
[tex]\alpha = (100-95)\%[/tex]
=> [tex]\alpha = 0.05[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Generally the margin of error is mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * SE[/tex]
=> [tex]E = 1.96 * 0.017[/tex]
=> [tex]E = 0.03332 [/tex]
Generally 95% confidence interval is mathematically represented as
[tex]\r p -E < p < \r p +E[/tex]
=> [tex]0.43 -0.03332 < p < 0.43 + 0.03332[/tex]
=> [tex] 0.39668 < p < 0.46332[/tex]
Converting to percentage
[tex] (0.39668 * 100)< p < (0.46332*100)[/tex]
[tex] 39.7\% < p < 46.33 \%[/tex]
Evaluate
5
9
÷
5
18
jjijijij
kok
Answer:
i cant even see the words
Step-by-step explanation:
sorry i cant help
area of a 18cm wide rectangle is 342 cm squared. what is the length?
Two part-time instructors are hired by the Department of Statistics and each is assigned at random to teach a single course in probability, inference, or statistical computing. Assume that more than one section of each course is offered. List the outcomes in the sample space [Hint: each element consists of a pair of assignments]. Find the probability that they will teach different courses. Note: carefully define your notation (e.g. any events) in words before solving the problem.
Answer:
The probability that they will teach different courses is [tex]\frac{2}{3}[/tex].
Step-by-step explanation:
Sample space is a set of all possible outcomes of an experiment.
In this case we will write the sample space in the form (x, y).
Here x represents the course taught by the first part-time instructor and y represents the course taught by the second part-time instructor.
Denote every course by their first letter.
The sample space is as follows:
S = {(P, P), (P, I), (P, S), (I, P), (I, I), (I, S), (S, P), (S, I) and (S, S)}
The outcomes where the the instructors will teach different courses are:
s = {(P, I), (P, S), (I, P),(I, S), (S, P) and (S, I)}
The probability of an events E is the ratio of the number of favorable outcomes to the total number of outcomes.
[tex]P(E)=\frac{n(E)}{N}[/tex]
Compute the probability that they will teach different courses as follows:
[tex]P(\text{Different courses})=\frac{n(s)}{n(S)}=\frac{6}{9}=\frac{2}{3}[/tex]
Thus, the probability that they will teach different courses is [tex]\frac{2}{3}[/tex].
help and explain if u can pls
Answer:
C 60
Step-by-step explanation:
This is because if you do 303+60=363 and then you do 363/11 you get 33. So x=60
60
Step-by-step explanation:Multiply both sides of the equation by 11:
303 + x =363
Move constant to the right side and change its sign:
x = 363 - 303
Then,subtract the numbers:
x = 60
Simplify this expression:
2x? - 5xy - 6+ 4x2 – 3xy +1-xły
O 6x? - 9xy - 5
O 5x2 – 8xy-5-y
O 6x2 - 8xy-5-xy
O 6x² + 2xy-by-xy
Answer:
3xy⋅(4x
2
+2x−3y)
Step-by-step explanation:
Answer:
its c
Step-by-step explanation:
Find the distance between the two points in simplest radical form.
(1,5) and (-5,8)
FIRST ONE TO AWNSER CORRECTLY GETS BRAINLEIST-1.8 + (2.1) Show your work
Answer:
0.3
Step-by-step explanation:
2.1
-1.8
---------
0.3
the triangular prism below has equilateral bases with sides of 4 in and a height of 4.5 in and rectangular sides measuring by 4 in by 7in what is the lateral surface area of the prism?
Answer:
quite not sure
Step-by-step explanation:
Study the solutions of the three equations on the right. Then, complete the statements below. There are two real solutions if the radicand is There is one real solution if the radicand is There are no real solutions if the radicand is 1. y = negative 16 x squared + 32 x minus 10. x = StartFraction negative 32 plus-or-minus StartRoot 384 EndRoot Over negative 32 EndFraction. 2. y = 4 x squared + 12 x + 9. x = StartFraction negative 12 plus-or-minus StartRoot 0 EndRoot Over 8 EndFraction. 3. y = 3x squared minus 5 x + 4. x = StartFraction 5 plus-or-minus StartRoot negative 23 EndRoot Over 6 EndFraction.
Answer:
There are two real solutions if the radicand is
✔ positive.
There is one real solution if the radicand is
✔ zero.
There are no real solutions if the radicand is
✔ negative.
Step-by-step explanation:
ON MY DOG KIDS DIS RIGHT
Answer:
1.Postieve
2.Zero
3.Negative.
Step-by-step explanation
i did it on ed and got it right.
3. Find the slope of the graph.
101
a.
WIN
8
3
b.
2
-2
2
3
-10 -3 -6 -4 -2
24
6
8 10
2
3
d.
2
=6
-8
-10
Answer:
It's is 3/2
Step-by-step explanation:
since the line is going up, the rise/run is going to be positive
what’s 2x+y=4 in slope intercept form
What equation mathches this situation John had 10$. He spent x dollar now he has $3.20
Answer:
$6.80
Step-by-step explanation:
You would need to subtract $10-$3.20 to find out how much he spend and that is how you will get your total
Answer:
$6.80
Step-by-step explanation:
10-3.20
please help :,(( it's due in 30 minutes
Answer:
brain went bye bye
Step-by-step explanation:
Genevieve has $9000 to invest. She invests some at 6% annual interest and the rest at 4% annual interest. After one year, her total interest from both accounts is $444. How much did she invest in each account? (Clearly label which amount is for which account in your answer. Hint: Over a one year period, annual interest is the same as simple interest.)
Answer:
The first account, she invested = $4200 and in the second = $4800
Step-by-step explanation:
Let us assume that Genevieve invests $x at 6% ,
Hence, she invests ($9000 - $x ) at 4% ,
It's given that the combined interest from both of the above accounts is $444,
So,
0.06x + 0.04 (9000 - x) = 444
=> 0.06x + 360 - 0.04x = 444
=> (0.06x - 0.04x) + 360 = 444
=> 0.02x = 444 - 360
=> 0.02x = 84
=> x = 84/0.02
=> x = 8400/2 (By multiplying the denominator and numerator)
=> x = 4200
Therefore, 9000 - x = 9000 - 4200 = 4800
$4200 at 6% and $4800 at 4%
Therefore, the first account, she invested = $4200 and in the second = $4800
If my answer helped, kindly mark me as the brainliest!!
Thank You!!
What is the slope of the line that passes through the points
(4, -3) and (8, -2)?
Step-by-step explanation:
Hey there!
The points are;(4,-3) and (8,-2).
Use slope formula.
[tex]slope(m) = \frac{y2 - y1}{x2 - x1} [/tex]
Put all values.
[tex]m = \frac{ - 2 + 3}{8 - 4} [/tex]
[tex]m = \frac{1}{4} [/tex]
Therefore, the slope is 1/2.
Hope it helps...
If the value of two integers differs by 3, and the product of the two integers is 108, what is the sum of the two integers?
A.21
B.19
C.25 D.23
Answer:
A
Step-by-step explanation:
Let the smallest number be n.
If the next integer differs by 3 then:
n + 3 is our second integer.
If the product is 108 then we would multiply them together.
n * (n + 3) = 108 Now solve for n.
(n*n) + (n*3) = 108
[tex]n^{2} +3n = 108[/tex] Now we move 108 to the other side by subtracting so we can factor.
[tex]n^{2} + 3n - 108 = 0[/tex]
(n )(n ) = 0
Find all the multiples of 108
1 x 108
2 x 54
3 x 36
4 x 27
6 x 18
9 x 12
Which one can we add or subtract together to get 3?
9 x 12 because 12 - 9 = 3
[tex]n^{2} + 3n - 108 = 0[/tex]
(n 12)(n 9) = 0 Now we figure out the signs. Since we have -108 one must be negative, and the 3 in the 2nd term (3n) is positive so:
(n + 12)(n - 9) = 0 Is our factored equation.
Our smallest number is 9, so n = 9
Our second number is n + 3 and 9 + 3 = 12
So our 2 integers are 9, 12, there sum would be 9 + 12 = 21
Option A.
The ___________________ of a right triangle are the two sides that make up the right angle.
Answer:
a and b are the "legs" of the triangle, which are the two sides that make up the 90 degree angle. c is the "hypotenuse" of the triangle, and is the side of the triangle that is opposite the right angle (another way to say a 90º angle is "right angle"). The hypotenuse is also the longest side of the right triangle.
Teresa started a game at 6:25 PM and finished it at 7:41 PM.
How long did it take her? Give your answer in minutes.
Answer:
It took 1 hour and 16 minutes
Step-by-step explanation:
Plz help this is my last time to turn in everything and plz get the answer right!!
Its letter: H
Answer:
$37.05
Step-by-step explanation:
6x+2 -1 -48-3-2x+2
Helpppppppp
x=12
This the answer hope this helps
If you need the steps please feel free to contact me in the comments
