Answer:
What is the question you are asking?
Answer:
(a+b)³ = a³+b³+3ab(a+b)
Step-by-step explanation:
hope it's helpful to you ☺️
Simplify (9 ^ 2)/(9 ^ 7)
PLS HELP!!!! WILL MARK BRAINLIEST!
Answer:
1/9^5
Step-by-step explanation:
Yeah you're correct, 9^2/9^7 = 1/9^(7-2).
A pet store has c tanks of fish. Each tank has 25 fish. Using c , write an expression for the total number of fish in the store.
Answer:
25c
Step-by-step explanation:
For example , if there are 3 tanks (or n is 3), the total number of fish would be 25* 3 = 75 fish.
Please help ive been stuck in this question
Answer:
The choice A.
Step-by-step explanation:
sin= Opposite/ hypotenuse
[tex] \sin(30) = \frac{ \sqrt{15} }{x} \\ \\ x = 2 \sqrt{15} [/tex]
tan = opposite/adjacent
[tex] \tan(30) = \frac{ \sqrt{15} }{y} \\ \\ y = 3 \sqrt{5} [/tex]
I hope I helped you^_^
Given lines are parallel, find the value of x.
Then determine the measure of the angle.
Answers:
x = 45angle measure = 104 degrees============================================================
Explanation:
These angles are on alternating sides of the transversal line, and they are exterior of the parallel lines. Therefore, these are alternate exterior angles.
Alternate exterior angles are congruent when we have parallel lines like this.
Set the two expressions equal to each other. Solve for x.
3x-31 = x+59
3x-x = 59+31
2x = 90
x = 90/2
x = 45
Then we can find that:
3x-31 = 3*45-31 = 135-31 = 104x+59 = 45+59 = 104Both alternate exterior angles are 104 degrees each, which confirms we have the correct x value.
Suppose that the members of a student governance committee will be selected from the 40 members of the student senate. There are 18 sophomores, 12 juniors and 10 seniors who are members of the student senate. In how many ways can the governance committee be selected, if it must be made up of 2 sophomores, 2 juniors and 3 seniors? Assume that each of the sophomores, each of the juniors and each of the seniors is equally likely to be selected for the committee.
Using the combination formula, it is found that the committee can be selected in 1,211,760 ways.
Combination formula:
[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by:
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
In this problem:
2 sophomores from a set of 18.2 juniors from a set of 12.3 seniors from a set of 10.They are independent, so we can just multiply them, thus:
[tex]T = C_{18,2} \times C_{12,2} \times C_{10,3} = \frac{18!}{2!16!} \times \frac{12!}{2!10!} \times \frac{10!}{3!7!} = 1211760[/tex]
The committee can be selected in 1,211,760 ways.
A similar problem is given at https://brainly.com/question/24650047
What is the area of a rectangle with a length of 5 units and a width of 8 units
Answer:
40 square units
Step-by-step explanation:
A = LW
A = 5 units x 8 units
A = 40 square units
Answer:
40^2
Step-by-step explanation:
The formula for finding the area of a triangle is length times width. So all you have to do is multiply the length 5 and width 8 together to give you 40. Therefore, the area of the rectangle is 40^2.
Prove that for any natural n the value of the expression (4n+5)^2–9 is divisible by 4.
thank you !!!
please show work, not just the answer
Answer:
4 n (2) + 10 n +4
Step-by-step explanation:
Step-by-step explanation:
Simplify the expression by opening parenthesis:
(4n + 5)² - 9 =(4n)² + 2*5*(4n) + 25 - 9 =4(4n²) + 4(10n) + 4(4) =4(4n² + 10n + 4)As we see the expression has 4 as one of factors so is divisible by 4.
2 raised to power x+1=1
Answer:
-1
Step-by-step explanation:
As you know every number raised to the power of zero is equal to one.and here we have
[tex]2^{x+1} = 1[/tex]
[tex]2^{0} = 1[/tex]
[tex]2^{0} = 2 {}^{x + 1}[/tex]
[tex]x + 1 = 0[/tex]
[tex]x = - 1[/tex]
1/5+1/2+1/4 reduce to lowest terms as indicated
Answer:
Step-by-step explanation:
LCM of 5 , 2 and 4 = 20
[tex]\dfrac{1}{5}+\dfrac{1}{2}+\dfrac{1}{4}=\dfrac{1*4}{5*4}+\dfrac{1*10}{2*10}+\dfrac{1*5}{4*5}\\\\=\dfrac{4}{20}+\dfrac{10}{20}+\dfrac{5}{20}\\\\=\dfrac{4+10+5}{20}\\\\=\dfrac{19}{20}[/tex]
HELP ME PLEASE WRITEEEEE
Answer:
Initial value is the y- intercept and the change per month is the slope.
The slope is $25, which is an increase rate per month.The y- intercept is $525, which is the investment amount.The model function is:
f(x) = 25x + 525what is the squareroot of 144
Answer:
The square root of 144 is 12
Step-by-step explanation:
[tex]\sqrt{144} = 12[/tex]
because 12 x 12 = 144
it's basically 12 doubled... [tex]12^{2}[/tex]
Answer:
12 is the square root of 144.
Step-by-step explanation:
That means if you multiply 12 by 12, you will get 144.
That's called 12² (12 squared)
The square root is the opposite of that. √144=12.
Keep in mind that 12*12=144.
Hope this helps!
[tex]GraceRosalia[/tex]
Note that a change can be an increase or a decrease.
For an increase, use a positive number.
For a decrease, use a negative number.
(a) Laura pumped 7 gallons of water into her pool each minute for 14 minutes. What was the total change in the amount of water in the pool?
Answer:
98 gallons
Step-by-step explanation:
Laura's Pump rate = 7 gallon/minute.
Thus, the total change in 14 minutes =
7(14) = 98 gallons
I know why no ones answering your questions. Because there is not enough info.
My guess is an increase tho.
A bag contains 9 red balls numbered 1, 2, 3, 4, 5, 6, 7, 8, 9 and 6 white balls numbered 10, 11, 12, 13, 14, 15. One ball is drawn from the bag. What is the probability that the ball is red, given that the ball is odd-numbered? (Enter your probability as a fraction.)
Answer: 5/8
Step-by-step explanation: There are 5 odd-numbered balls in the red numbered balls. There are 3 odd-numbered balls in the white numbered balls. So the probability of choosing a red odd numbered ball out of the set of all odd numbered balls is 5/8! Hope this helps!
A rectangle is 19 feet long and 3 feet wide. Find its area,
67 square feet
22 square feet
37 square feet
60 square feet
Answer:
19 times 3 equal 57
Step-by-step explanation:
57 square feet
PLEASE HELP ITS MATH THANK YOUUUU
Answer:
38 yards because you add all them together
A line passes through the point (6, -4) and has a slope of - 4/3
Write an equation in point-slope form for this line.
Answer:
y--4=-4/3(x-6)
Then, y+4=-4/3(x-6).
A field is a rectangle with a perimeter of 1200 feet. The length is 200 feet more than the width. Find the width and length of the rectangle field
Answer:
Step-by-step explanation:
let the width be w
p=l*w
1200= 200*w
1200= 200w
1200 = 200w
6 feet = w
width is 6 feet
let the length be a
p = l* w
1200 = a* 6
1200 = 6a
1200 = 6a
200 feet = a
length is 200 feet
13. Maddie purchased a sofa and a chair for her new apartment. The sofa cost $40 more
than twice the chair. She paid a total of $1252. What did she pay for each one?
The sofa cost $848 while the chair cost $404
Let x represent the cost of the sofa and y represent the cost of the chair.
The sofa cost $40 more than twice the chair, hence:
x = 2y + 40
x - 2y = 40 (1)
She paid a total of $1252, hence:
x + y = 1252 (2)
Solving equation 1 and 2 simultaneously gives:
x = 848, y = 404
Therefore the sofa cost $848 while the chair cost $404
Find out more at: https://brainly.com/question/13910351
Find the volume of the sphere. Use 3.14 for n. Round to the nearest tenth. radius= 6ft.
Add the linear expressions
(-4x – 2 – x) + (2x − 2)
What is the sum?
Enter your answer in the box.
Answer:
-3x -4
Step-by-step explanation:
did the test
Reasoning Practice
w
w
w
w
20
3
W
Х
Х
24
w
Х
Х
Y у
25
w
Х
Y у
Z
30
The sum of each row is given. Find w, x, y and z.
5
Step-by-step explanation:
Which equation is correct?
8 dot 8 equals 8 Superscript 2 equals 16.
9 dot 9 equals 2 left-parenthesis 9 right-parenthesis equals 18.
10 dot 10 equals 2 left-parenthesis 10 right-parenthesis equals 100.
11 dot 11 equals 11 Superscript 2 equals 121.
The equation that is correct is 11.11 = 11² = 121. The correct answer is the fourth option: 11 dot 11 equals 11 Superscript 2 equals 121 (11.11 = 11² = 121)
From the question,
We are to determine which of the options is correct.
To determine which of the options is correct, we will evaluate the options one after the other.
For the first option8 dot 8 equals 8 Superscript 2 equals 16
That is,
8.8 = 8² = 16
Evaluating properly
8.8 = 8² = 8 × 8 = 64
Then, 8.8 = 8² ≠ 16
∴ This is NOT correct
For the second option9 dot 9 equals 2 left-parenthesis 9 right-parenthesis equals 18
That is,
9.9 = 2(9) = 18
Evaluating properly
9.9 = 9 × 9 = 9² = 81
Then, 9.9 ≠ 2(9) = 18
∴ This is NOT correct
For the third option10 dot 10 equals 2 left-parenthesis 10 right-parenthesis equals 100
That is,
10.10 = 2(10) = 100
Evaluating properly
10.10 = 10 × 10 = 10² = 100
Then, 10.10 ≠ 2(10) ≠ 100
∴This is NOT correct
For the fourth option11 dot 11 equals 11 Superscript 2 equals 121
That is,
11.11 = 11² = 121
Evaluating properly
11.11 = 11² = 11 × 11 = 121
Then, 11.11 = 11² = 121
This is correct.
Hence, the equation that is correct is 11.11 = 11² = 121. The correct answer is the fourth option: 11 dot 11 equals 11 Superscript 2 equals 121 (11.11 = 11² = 121)
Learn more here: https://brainly.com/question/12872403
Hello everyone, please help me out on this, Select each correct answer pls.
Nathan usually drinks 35 ounces of water per day. He read that he should drink 68 ounces of water per day. If he starts drinking 68 ounces, what is the percent increase? Round to the nearest percent. Please help me
Answer:
It’s 61.40 percent so rounding to the nearest percent would be 61% he needs to increase
A stockbroker dealt with 30 customers on a certain day. Of these, 12 bought and sold stocks and 17 sold stocks (but did not buy). How many of the customers bought stocks (but did not sell)?
Answer:
25
Step-by-step explanation:
30=17+x-12
Standard deviation of a sample means
Answer:
statistical metric that is used to measure the extent by which a random variable diverges from the mean of the sampleStep-by-step explanation:
Sample standard deviation refers to the statistical metric that is used to measure the extent by which a random variable diverges from the mean of the sample and it is calculated by adding the squares of the deviation of each variable from the mean, then divide the result by a number of variables minus and then computing the square root in excel of the result.
Hope this helps :}
Pls mark brainliest :P
And have an amazing day <3
Answer:
A sample standard deviation is a statistic. This means that it is calculated from only some of the individuals in a population. Since the sample standard deviation depends upon the sample, it has greater variability. Thus the standard deviation of the sample is greater than that of the population.
Step-by-step explanation:
PLEASE HELP!!!!!!!
will mark brainliest!!!!
Answer:
8 IN by 6 in
Step-by-step explanation:
Hope it helps :)
Question is attached.
Step by step explanation needed!
Refer to the Attachment.
Hence proved.Refer to the attachment
In frequency curve the points are joined by bits of a straight line. True/False
solve pls brainliest
Answer:
a. Elsa's total change of her stocks is $448.
b. The change of the club's size each week was -5 members.
Step-by-step explanation:
a. The value of one share increased by 8 dollars. Elsa has 56 shares of that certain stock.
Given the information above, multiply [tex]56[/tex] × [tex]8[/tex] to find the total change in her stocks.
[tex]56[/tex] × [tex]8=448[/tex]
b. 30 members left a club on 6 weeks.
Given the information, divide [tex]-30[/tex] ÷ [tex]6[/tex] to find the amount of members leaving the club per week.
[tex]-30[/tex] ÷ [tex]6=-5[/tex]