Answer:
20 happy to helPNMNJHUJN
Step-by-step explanation:
They have a rectangle ABCD as shown below, where AB = 24cm BC = 10cm and AE = 13cm
A. Calculate the volume of the rectangle ABCD
B. Calculate the circumference of the BCD triangle
C. Calculate the circumference of the BEC triangle
D. Calculate the circumference of the DEC triangle
Answer:
big pp is answer ok big pp is good hehe
7.8 billion minus what number to get 500 million?
Answer:
seven billion three hundred million (7.5B)
(7,500,000,000)
Step-by-step explanation:
Answer:
7,300,000,000
Step-by-step explanation:
7,800,000,000-500,000,000
Write and simplify an algebraic expression for the rectangle with sides of 2x and 6x-1
What is -1
What is the answer
Answer:
1
Step-by-step explanation:
The answer is actually just positive 1.
Absolute value is the direct opposite of a number with a positive value on a number line. However, the absolute value is always answered in a positive form of the number meaning that no matter what the number is (even if it's a positive number) the answer will always be that same number, but in positive form.
Remember, if a number is in between two of these " | " then the answer will be that same number but in positive form.
Hope this helps and have a nice day.
-R3TR0 Z3R0
A piece of wood is 3 1/2 feet long how many total inches long is it?
Answer:
42 inches
Step-by-step explanation:
1 foot is 12 inches
12 times 3=36
12 divided by 2=6
36+6=42
How many groups of of 5/6 are in 1
Answer:
6/5
Step-by-step explanation:
to find the number of 5/6 's in 1 , divide 1 by by 5/6 . when dividing by a fraction , rewrite it as multiplying by the reciprocal
Please help me i attached a photo of the question
Answer:
I think it is ADE
Step-by-step explanation:
the sum of a number and 6 is 40
Answer:
x+6=40
Subtract 6
x=34
Answer:
n + 6 = 40
n = 34
Step-by-step explanation:
Sum of a number and 6. That means you got to add n and 6.
'is' means you need to put an equal sign.
n + 6 = 40
Now, lets find what n is.
Isolate the variable by subtracting 6 from both sides.
n = 34
A
9
Kylie drives 291 miles in 6 hours.
(a) What is her average speed?
Answer:
48.5 m/s
Step-by-step explanation:
291/6 = 48.5
Find x.
2x + 40
3x
4x
X + 50
x = [?]
y
Answer:
x=27
Step-by-step explanation:
Hey there!
the exterior angles of a quadrilateral add up to equal 360
so 360=2x+40+4x+3x+x+50
step 1 combine like terms
2x+4x+3x+x=10x
50+40=90
now we have
360=10x+90
step 2 subtract each side by 90
360-90=270
90-90 cancels out
now we have 270=10x
step 3 divide each side by 10
270/10=27
we're left with
x=27
Please help ASAP
Trigonometry
Answer:
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
7)
now decide which parts we know and what we want to slove for and pick the function that has those in it
we also know that small angle down at the point b/c we can use that the inside of trianle angles add to 180
180 = 75 + 90 + X
15° = X
where x is the angle at that sharp point on the triangle
I want to use that 15° angle in one of the above formulas as it's Opposite of that side we want to know, and also adjcent to that side we know , so i'll pick TOA since it's got all of those in it. Opp = x for this triangle
Tan(15) = Opp / 15
15* Tan(15) = Opp
4.0192 = Opp
so that's x
x = 4.0162 units , what ever they are
8)
the angle is 43° and we know the adjacent side and we want the Hypotenuse , now i'll pic CAH since it's got those pieces in it
Cos(43)= 31 / Hyp
some algebra just to switch Hyp out of the denominator
Hyp = 31 / Cos(43)
some tapping on my calculator
Hyp = 41.714
That's x for the second triangle
x = 41.71 units , what ever they are
:)
A study has been made to compare the nicotine contents of two brands of cigarettes. Ten cigarettes of Brand A had an average nicotine content of 3.1 milligrams with a standard deviation of of 0.5 milligram, while 8 cigarettes of Brand B had an average nicotine content of 2.7 milligrams with a standard deviation of 0.7 milligram. Assuming that the two sets of data are independent random samples from normal populations with equal variances, construct a 95% confidence interval for the difference between the mean nicotine contents of the two brands of cigarettes.
Answer:
−0.2226 ; 1.0226
Step-by-step explanation:
Given :
n1 = 10 ; n2 = 8 ; s1 = 0.5 ; s2 = 0.7 ; x1 = 3.1 ; x2 = 2.7
Confidence interval, two - sample, t procedure ;
μ1 - μ2 = (x1 - x2) ± Tcritical*S
S = sqrt[(s1²/n1) + (s2²/n2)]
S = sqrt[(0.5^2/10) + (0.7^2/8)]
S = sqrt[0.08625]
S = 0.2937
Tcritical at 95% confidence interval
df = 10+8 - 2= 16
Tcritical = 2.12
(3.1 - 2.7) ± 2.12*(0.2937)
0.4 ± 0.6226
(0.4 - 0.6226) ; (0.4 + 0.6226)
−0.2226 ; 1.0226
Question 4
(06.02)
What is one of the solutions to the following system of equations?
y² + x²= 65
y + x = 7
a (8, -1)
b (1,6)
С (6, 1)
d (9,-2)
Answer:
(8,-1)
Step-by-step explanation:
Given :
To Find: solution of given system of equations.
Solution:
Equation a :
Equation b :
Substitute the value of y from equation b in equation a
y from equation b : y = 7-x
Now substitute value of y in equation a
Thus equation a becomes:
⇒ x= -1 and x = 8
Now substitute values of x in equation b to obtains values of y
⇒
for x = -1
⇒
⇒
⇒
Thus (x,y)=(-1,8)
For x =8
⇒
⇒
⇒
Thus (x,y)=(8,-1)
Hence Option A is the correct solution .
IMPOSSIBLE PLEASE HELP! ALSO MAKE SURE TO WRITE A LET STATEMENT
Which of the following statements is TRUE about the relationship between the numerical values?
A. The opposite of 15 is equal to 15 greater than zero.
b. 15 greater than zero is less than the opposite of 15.
c. 15 greater than zero is farther from 0 on a number line than the opposite of 15.
D. The opposite of 15 is the same distance from zero on a number line as 15 greater than zero
Answer:
D is the answer
Step-by-step explanation:
-15 Is the same as 15 its just negative but they have the same distance.
Plzz help me I am timed
Answer:
the answer is b which is 5 ten dollar bill
Insert brackets to make this statement true: 16 - 10 x 4 +2 = 36
Answer:
{16-10}{4+2}=36 For me, I use parenthesis () instead: (16-10)(4+2)=36
Step-by-step explanation:
With parenthesis, you don't have to put the multiply sign between the 2: (16-10) x (4+2) --> (16-10)(4+2).
A company has offices in two different countries. Suppose that the average age (in years) of the employees at location A is 40.140.140, point, 1 with a standard deviation of 5.55.55, point, 5, and the average at location B is 36.736.736, point, 7 with a standard deviation of 6.36.36, point, 3.
Every month, the company takes separate random samples of 505050 employees from each location for a survey. Each time, they look at the difference in the mean age sampled from each location \left( \bar{x}_\text{A} - \bar{x}_\text{B} \right)(
x
ˉ
A
−
x
ˉ
B
)left parenthesis, x, with, \bar, on top, start subscript, start text, A, end text, end subscript, minus, x, with, \bar, on top, start subscript, start text, B, end text, end subscript, right parenthesis.
What do we know about the shape of the sampling distribution of \bar{x}_\text{A} - \bar{x}_\text{B}
x
ˉ
A
−
x
ˉ
B
x, with, \bar, on top, start subscript, start text, A, end text, end subscript, minus, x, with, \bar, on top, start subscript, start text, B, end text, end subscript, and why?
Answer:
It's approximately normal, because both sample sizes are at least 303030.
Step-by-step explanation:
Khan Academy
Penelope invested 60% of her retirement account in stocks and 40% in gold. Penelope believes that the return to stocks over the next 12 months is normally distributed with mean rate of return of 15% and standard deviation of return of 25%. Penelope also believes that the return to gold over the next 12 months is normally distributed with mean rate of return of 30% and standard deviation of return of 40%. Finally, Penelope believes that the return to stocks and the return to gold are independent.
1. According to Penelope's beliefs, what are the mean rate of return and the standard deviation of return ot her portfolio?
2. What is the probability that Penelope's portfolio will earn at least 12% in the next 12 months?
Answer:
1) mean = 21, standard deviation σ = 21.9317
2) the probability that Penelope's portfolio will earn at least 12% in the next 12 months is 0.6591
Step-by-step explanation:
Given the data in the question;
1. According to Penelope's beliefs, what are the mean rate of return and the standard deviation of return of her portfolio?
Mean μ = Return = ( 60% × 15) + ( 40% × 30 ) = 9 + 12 = 21
mean = 21
standard deviation σ = √( (0.6² × 25²) + ( 0.4² × 40² ) )
standard deviation σ = √( (0.36 × 625) + ( 0.16 × 1600 ) )
standard deviation σ = √( 225 + 256 )
standard deviation σ = √481
standard deviation σ = 21.9317
2) What is the probability that Penelope's portfolio will earn at least 12% in the next 12 months
so we are to find P( X > 12 )
converting into standard normal variable;
⇒ P( Z > X-μ / σ )
= P( Z > ( 12-21 / 21.9317 ) )
= P( Z > ( -9 / 21.9317 ) )
= P( Z > -0.41 )
FROM z-score table; P( Z > -0.41 ) is 0.3409
P( X > 12 ) = 1 - 0.3409
P( X > 12 ) = 0.6591
Therefore, the probability that Penelope's portfolio will earn at least 12% in the next 12 months is 0.6591
i need help please asap i will give heart to first correct comment
Answer:
Step-by-step explanation:
Alicia, use that the area of a triangle is 1/2 base * height
A = 1/2 b * h
2*A /h = b
2*14 / 6 = b
4 2/3 = b
the base is 4 [tex]\frac{2}{3}[/tex] feet :) <3 :P
Triangle PQR IS SIMILAR TO Triangle KLM.
What is the value of x in inches?
A 7 in.
B 148 in.
C 92 in.
D 168 in.
A carpenter has a board that is 4 feet long. He wants to cut it into 3 equal pieces. How many inches long will each piece need to be?
What is the correct answer?
Answer:
6 units to the right, 3 units down
Step-by-step explanation:
Is 5,286 greater than 1 mile and 72 in
Answer:
no
Step-by-step explanation:
using a mile to inch converter it is abt 62k in
Please help! Add. Simplify the answer and write it as a mixed number. 3 4/5 + 1 4/15
Answer:
5 1/15
Step-by-step explanation:
3 4/5 + 1 4/15 = ?
convert 3 4/5 to a common denominator of 15:
3 12/15 + 1 4/15 = 4 16/15
simplified = 5 1/15
Factor: m2 + 8m + 15
Answer:
(m+3) (m+5)
Step-by-step explanation:
Find the measure of a.
Answer: 104
Step-by-step explanation:
It is a full circle
Circle = 360
We have 126 and 26 so
360 - (126+26) = 208
Since the a's are opposite thet means they are equal ( I forgot the law name)
208 divided by 2
104
Find the area. Simplify your answer.
x+8
x+7
Answer:
x² 15
Step-by-step explanation:
I'm not 100% sure.. sorry if I'm wrong..
*NEED HELP QUICKLY* son needs a math assignment done within the hour so he can submit it and get a decent grade. i tried helping but math isn’t my strong suit. Thanks.
Answer:
The slope of the line is -1/2, and the entire equation should be y = -1/2x + 3/2
Step-by-step explanation:
Choose two points along the line, for this I chose (3,0) and (-1,2). Finding the slope from there should be (y2 - y1)/(x2-x1), or -1/2. To get the entire line use point slope form of y - y1 = slope (x -x1) with one of the points you already found.
Hopefully this helps- let me know if you have any questions!
Karen Sue has 6 pairs of jeans that
are ripped. If that represents 40%
of the total pairs of jeans in her
wardrobe, what is the total number
of pairs of jeans in her wardrobe?
Set up as a proportion and solve.
Answer:
The total number of pairs of jeans in her wardrobe is 15.
Step-by-step explanation:
We solve this question using proportions.
6 pairs of jeans represents 40% of the total.
The total is x. Using proportions:
[tex]\frac{6}{x} = \frac{40}{100}[/tex]
[tex]\frac{6}{x} = 0.4[/tex]
[tex]0.4x = 6[/tex]
[tex]x = \frac{6}{0.4}[/tex]
[tex]x = 15[/tex]
The total number of pairs of jeans in her wardrobe is 15.
