Answer:
243
Step-by-step explanation:
first of all you got to multiply 9 by 27 which gives you 243
if cos a=0•8,what is the value of tan a
Answer:
[tex] \tan( \alpha ) = \frac{ \sqrt{1 - { \cos( \alpha ) }^{2} } }{ \cos( \alpha ) } = \: \frac{ \sqrt{0.36} }{0.8} = \frac{0.6}{0.8} [/tex]
100 students participate in sport or music.60 participate in sports and 50 participate in music. How many students participate in both activities?Using Venn-diagram,find the number of students who participate only in music.(help me)
Answer:
40 students participate only in music.
Step-by-step explanation:
When you add the two groups together, you get 50 + 60 = 110. But there are only 100 students, so 10 of them must have been counted twice (they do music AND sports. Put 10 in the middle part of the Venn diagram (image2).
Subtract 10 from each of the two groups to find the number of students taking only one of the two subjects. For example, there are 50 music students, but 10 of them also do sports, so 50 - 10 = 40 students do only music. (There are 60 - 10 = 50 students who participate only in sports.) (image3).
Given what you have learned about inverse functions, what can you say about the functions y = 2^x and y = log 2 X.
Answer:
[tex] log(2x) = {2}^{x} \\ ln \: \times log = ln( {2}^{x} ) \\ 1 = x ln(2) \\ x = \frac{1}{ ln(2) } [/tex]
Are these ratios equivalent?
8 sneakers to 20 sandals
4 sneakers to 10 sandals
Answer:
yes
Step-by-step explanation:
For the first ratio we can simplifiy it by divide the two numbers by 4
8:4 = 2
20: 4 = 5
2 sneakers to 5 sandals
For the second ratio we can simplify it by dividing the two numbers by 2
4 : 2 = 2
10 : 2 = 5
2 sneakers to 5 sandals
we have found that the two ration are equivalent
Proteins can transport other substances to wherever they are needed in the body.
TRUE
FALSE
Answer:
proteints hi where they need to go body
Connor invests $1,400 in a savings account that increases annually at a 9% interest rate. Determine how much money Connor will have after 4 years. Round to the nearest cent.
Answer:
$1,976.21
Step-by-step explanation:
$1,976.21
Select the correct answer.
What is the difference of the values of the two variables in this system of equations?
y= 2x+1
x + 3y = 10
A. 0
B. 1
C. 2
D. 3
Need help! Have a good day
Answer:
Use the website www.bartley.com !!! I has helped me a lot and its actual teachers/tutors who answer your questions in about 30 minutes :)
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
y= 1/2x +8
hope this helps
what is the value of y if x=8
Answer:y=7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
Which equation is graphed in the
coordinate plane?
a. f(x) = (x + 3)2 - 5
b. f(x) = -(x + 3)2 – 5
c. f(x) = (x - 3)2 - 5
d. f(x) = -(x - 3)2 – 5
HELP PLEASE
Answer:
do u have calculator?
Step-by-step explanation:
u need to put that equations in the graph
Answer:
y = -(x + 3)^2 - 5 (this is Answer b)
Step-by-step explanation:
Identify the coordinates of the vertex (h, k) by looking at the graph: the x-coordinate, h, is -3 and the y-coordinate is -5. The graph opens down, so the function begins with a negative sign: y = -(x + 3)^2 - 5 (this is Answer b).
Use the regression calculator to compare students’ SAT scores based on their IQ scores.
A 2-column table with 8 rows. Column 1 is labeled I Q with entries 115, 84, 111, 120, 105, 98, 96, 88. Column 2 is labeled S A T with entries 1,440, 780, 1,20, 1,560, 1,240, 1,200, 1,000, 920.
The trend line shows correlation.
The equation of the trend line is .
Positive
A - y = 18.8x - 763
Should be right-
Answer:
Positive
y=18.8x-763
Step-by-step explanation:
Pleas help! I will give brainliest to the first answer!
Answer:
hi
Step-by-step explanation:
I NEED HELP PLS!! it shouldnt be too hard bc im in 6th grade
Answer:
2x + 1
Step-by-step explanation:
That person added everything together that was shown which is incorrect. You shouldn't add the 12x + 3 as that should be the end result. You add 3x + 3x + 4x + 2 to get 10x + 2. You then subtract that by 12x +3 which is 2x + 1
PLEASE I WILL GIVE EXTRA POINTS AND BRAINLIEST I PROMIS!!!!!!! I AM DESPERATE PLEASE I AM BEGGING YOU!!!!!!!!!!!!!!!!!!!!!!!
Answer:
If you comment fractions I will do them!
Step-by-step explanation:
Across:
A = 46
E = can't see the fraction
H = 2111
I = 64
J = 29
L = can't see the fraction
P = 55005
R = can't see the fraction
S = 21
T = 49
U = 308
V =129
X = can't see the fraction
Y = 4008
Z = 15
BB = 375
EE = 65
FF = 16
GG = 64
Down:
B = 600
C = can't see the fraction
D = 316
G = can't see the fraction
H = can't see the fraction
K = 9520
L = 15010
N = 299
O = 59
Q = 518
T = 4116
U = 333
V = 1006
W = 189
AA = 55
CC = 71
DD = 56
Factor the following :
Answer:
(6x - 7y)(6x + 7y)
Step-by-step explanation:
36x² - 49y² ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
36x² - 49y²
= (6x)² - (7y)²
= (6x - 7y)(6x + 7y)
Answer:
(6x + 7y)(6x - 7y)
Step-by-step explanation:
36x² - 49y²
= (6x)² - (7y)²
= (6x + 7y)(6x - 7y)
In this question we used the identity-
a² - b² = (a + b)(a - b)
What fraction of all the 10-digit numbers with distinct digits have the property that the sum of every pair of neighboring digits is odd?
Answer:
1/126
Step-by-step explanation:
Answer attached, I hope this is the answer.
the sum of every pair of neighboring digits is odd must be odd number and even number in the neighbor. (different parity)
The fraction of all the 10-digit numbers with distinct digits that have the property that the sum of every pair of neighboring digits is odd is 1/126.
What is a fraction?A fraction is written in the form of a numerator and a denominator where the denominator is greater that the numerator.
We have two types of fractions.
Proper fraction and improper fraction.
A proper fraction is a fraction whose numerator is less than the denominator.
An improper fraction is a fraction where the numerator is greater than the denominator.
Example:
1/2, 1/3 is a fraction.
3/6, 99/999 is a fraction.
1/4 is a fraction.
We have,
For a 10-digit number to have the property that the sum of every pair of neighboring digits is odd, the digits must alternate between odd and even numbers.
Specifically, if the first digit is odd, then the second digit must be even, the third digit must be odd, the fourth digit must be even, and so on.
If the first digit is even, then the second digit must be odd, the third digit must be even, the fourth digit must be odd, and so on.
There are 5 odd digits and 5 even digits, so there are 5 choices for the first digit. After selecting the first digit, there are 5 choices for the second digit (it must be one of the other type), 4 choices for the third digit (it must be the opposite type of the second digit), 4 choices for the fourth digit (it must be the opposite type of the third digit), and so on.
Therefore, the number of 10-digit numbers with distinct digits that have the given property is:
5 x 5 x 4 x 4 x 3 x 3 x 2 x 2 x 1 x 1 = 5! x 4!
where the factorials arise from the number of choices for each digit.
The total number of 10-digit numbers with distinct digits is:
10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 10!
Therefore, the fraction of all the 10-digit numbers with distinct digits that have the given property is:
(5! x 4!) / 10! = (5! x 4!) / (10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1) = 1/126
Thus,
The fraction of all the 10-digit numbers with distinct digits that have the property that the sum of every pair of neighboring digits is odd is 1/126.
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need help im struggling
Answer:
undefined
Step-by-step explanation:
sorry if it's wrong
Answer:
answer is zero
Step-by-step explanation:
A sociologist randomly selects single adults for different groups of three, and the random variable x is the number in the group who say that the most fun way to flirt is in person. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied.
I have attached the complete question.
Answer:
Mean; μ = 1.648
Standard deviation;σ = 0.8610
Step-by-step explanation:
From the image attached, we can see that the probabilities given under the p(x) column are;
0.091
0.334
0.408
0.166
Let's find out if these values give a probability distribution.
ΣP(x) = 0.091 + 0.334 + 0.408 + 0.166
ΣP(x) ≈ 1
Their sum is approximately 1 and they are all between 0 and 1. Thus, it is a probability distribution.
Mean is found by;
μ = ΣxP(x)
From the table attached, x = 0, 1, 2, 3
Thus;
μ = (0 × 0.091) + (1 × 0.334) + (2 × 0.408) + (3 × 0.166)
μ = 1.648
Standard deviation is given by;
σ = √[Σ(x - μ)²•P(x)]
σ = √[((0 - 1.648)² × 0.091) + ((1 - 1.648)² × 0.334) + (2 - 1.648)² × 0.408) + ((3 - 1.648)² × 0.166)]
σ = 0.8610
I need answers asap please
a
we have (-5-1;-3-2) so answer is A
Please answer correctly! I will mark you Brainleist!
Answer:
72 cm^3
Step-by-step explanation:
The volume of a rectangular prism is the length x width x height, so
6*3*4=72
please help I’m stuck on this question !!
Answer:
mode: 17
Step-by-step explanation:
mode is the number that appears the most in a set of data.So the answer is 17
एउटा झोलामा 15 ओटा असल र 5 ओटा खराब स्याउहरू
छन् । तीमध्ये दुईओटा स्याउहरूलाई पुन: नराखीकन निकाल्दा
बन्ने सम्भावित परिणामहरूको सबै सम्भाव्यताहरूलाई
वृक्षचित्रमा देखाउनुहोस्।
Answer:
15 apples good
5apples bad
answer 5
What is the answer and how to answer
Find the mean of the integers: –12, –4, –11, –6, 4 (Find the sum and divide by how many values there are.)
Answer:
The appropriate answer is "-5.8". A further solution is explained below.
Step-by-step explanation:
The given integers series is:
[tex]-12,-4,-11,-6,4[/tex]
As we know,
⇒ [tex]Mean=\frac{Sum \ of \ All \ Data \ Points}{Number \ of \ Data \ points}[/tex]
On substituting the values, we get
⇒ [tex]=\frac{(-12)+(-4)+(-11)+(-6)+4}{5}[/tex]
⇒ [tex]=\frac{-29}{5}[/tex]
⇒ [tex]=-5.8[/tex]
A local school needs to paint the floor of its theater room, where the length of the floor, x, is at least 12 feet. The width of the floor is 4 feet less than the length. It will have a stage and a closet, and the remaining area of the floor will be painted. The dimensions are shown in the diagram:
Let A represent the painted area, in square feet, of the floor. Choose the correct equation to solve for area (A).
A = x(x − 4) − 0.5(8)(x − 4) − 4(8)
A = x(x − 4) − (8)(x − 4) − 4(8)
A = x(x − 4) + (8)(x − 4) + 4(8)
A = x(x − 4) + 0.5(8)(x − 4) + 4(8)
Step-by-step explanation:
here .................
Answer:
A. A = x(x - 4) - 0.5(8)(x - 4) - 4(8)Step-by-step explanation:
Total area:
A(t) = x(x - 4)Area of the stage:
A(s) = 0.5(8)(x - 4)Area of the closet:
A(c) = 4(8)Area to be painted:
A = A(t) - A(s) - A(c)A = x(x - 4) - 0.5(8)(x - 4) - 4(8)Correct choice is A
HELP HELP HELP HELP HELP HELP
Answer:
57mm
Step-by-step explanation:
C=2(pi)(r)
C=2(3.14)(9)
C=56.52
rounding up, its 57mm
HELP ASAP
LINKS AND RIDICULOUS ANSWERS WILL BE REPORTED! CORRECT ANSWER WILL BE MARKED BRAINLIEST
Tarzan travels 117 miles per hour. How long does it take to travel 13 miles? Your answer should be in ours, accurate to at least the nearest tenth.
Answer:
what u did was multiply. 13×117=1,521
Step-by-step explanation:
I'm not sure if this is right
hope this helps :)
what is r if r-24=6 jhhjjhjhhjhj
Answer:
r=30
Step-by-step explanation:
r-24=6
r=6+24
r=60
Mark is going to an awards dinner and wants to dress appropriately. He had one blue shirt, one white dress shirt, one black dress shirt, one pair of black slacks, one pair of grey slacks, and one red tie. All six of marks possible outfits are listed below
Answer:
All the four statements are true , which are -
(A) The subset contains contains of all the outfits that have grey slacks .
(B) The subset contains contains of all the outfits that have grey slacks and red tie .
(C) The subset contains contains of all the outfits that have grey slacks and blue shirt .
(D) The subset contains contains of all the outfits that do not have black slacks .
Step-by-step explanation:
We are given with Outfit 2 , 4 and 6
Outfit 2 - Blue grey red
Outfit 4 - White grey red
Outfit 6 - Black grey red
(A) Since only 2,4, and 6 contain grey slacks, and no other outfit contains grey slacks, those are the subsets that contain grey slacks. Thus , this statement is true .
(B) Just outfits 2, 4, and 6 have grey slacks and a red tie, proving the statement. Other clothes do not include grey slacks and a red tie; they may include a red tie but not both grey slacks and a red tie. Hence , the statement is true .
(C) Since the outfit 2 has grey slacks and a blue shirt, the statement is correct; no other outfit has both grey slacks and a blue shirt. Therefore , this statement is also correct .
(D) The argument is correct since all of the subsets contain grey slacks and no black slacks.
Hence , all the options A , B , C , D are correct and describes the subset .
The given question is incomplete , the complete question is attached here -
What is the equation of a circle that has a diameter of 10 units if its center is at (3,8)?
Answer:
Step-by-step explanation:
[tex](x-3)^2+(y-8)^2 = 25[/tex]
The equation of circle: (x - 3)² + (y - 8)² = 25
What is equation of circle?An equation of circle with center (h, k) and radius 'r' is,
(x - h)² + (y - k)² = r²
For given example,
a diameter of circle = 10 units
So, the radius would be (r) = 10/2
r = 5 units
And the center (h, k) = (3, 8)
So, the equation of the circle would be,
⇒ (x - 3)² + (y - 8)² = 5²
⇒ (x - 3)² + (y - 8)² = 25
Therefore, the equation of circle: (x - 3)² + (y - 8)² = 25
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