Answer:
(3 + x) ( a -2b)
Step-by-step explanation:
3a - 6b + ax - 2bx
3a + ax - 6b - 2bx
a(3 + x) - 2b (3 +x)
(3 + x) (a - 2b)
Answer:
(a-2b) (3+x)
Step-by-step explanation:
(3a-6b)+(ax-2bx)
(3a+ax)-(6b-2bx)
a(3+x)-2b(3+x)
(a-2b) (3+x)
Thanks
Hope it helps
Find the missing value for the exponential function represented by the table below.
a. 9.213 c. 7.203
b. 8.756 d. -7.203
Please select the best answer from the choices provided
Answer:
C. 7.203
Step-by-step explanation:
I calculated it logically
The solution is, : the missing value for the exponential function represented by the table below is 7.203.
Option c., 7.203
Here, we have,
Exponential sequence is given as
21, 14.7, 10.29, ____, 5.0421
Explicit formula of the function is given by
a_n = a* r^(n-1)
when, we have,
a = first term = 21
r = common ratio
= 14.7/21
= 0.7
So the sequence will be
a_n = 21* 0.7^(n-1)
We have to find the forth term of the sequence
a₄ = 21(0.7)³
= 7.203
so, we get,
a₄ = 7.203
Option C. 7.203 is the answer.
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A machinist must cut 12 strips of metal that are each 3 ft 4 7/8 in. long. What is the total length needed in inches?
The total length needed in inches will be 490.5 inches.
How to calculate the fraction?A fraction simply means a piece of a whole. In this situation, the number is represented as a quotient such that the numerator and denominator are split. In this situation, in a simple fraction, the numerator as well as the denominator are both integers.
Since the machinist must cut 12 strips of metal that are each 3 ft 4 7/8 in. long The total length needed in inches will be:
= (3 ft 4 7/8 inch × 12)
Note that 1 feet = 12 inches
= (12 × 3) + (4 7/8) × 12
= (36 + 4.875) × 12
= 490.5 inches
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Kisha bought a pair of shoes originally marked $48.35. The
salesclerk told her she would get a 20% discount. How much
money did she save?
$38.68
$9.67
$8.83
$38.35
Answer:
she saved $9.67
Step-by-step explanation:
$48.35÷ 0.20= $9.67
The Students' Union needs to order some pens and notebooks. How much does it cost to order 1000 pens and 2000 notebooks?
$
Pen
Quantity 100 250 500 1000 2500 5000
Price per pen (cents) 80c 72c 66c 60c 52c 45c
Notebook
Quantity 100 250 500 1000 2500 5000
Price per notebook (cents) 99c 86c 80c 76c 72c 70c
The cost to order 1, 000 pens and 2, 000 notebooks, by the Student Union, can be found to be
How to find the cost of ordering the pens and notebooks ?The cost of ordering 1, 000 pens is shown to be 60 cents per pen so the total cost would be :
= Number of pens x Cost per pen
= 1, 000 x 60 cents
= $ 600
The cost of ordering 2, 000 notebooks is 76 cents per notebook which comes to a total of :
= 2, 000 x 76 cents
= $ 1, 520
The total cost of ordering the pens and notebooks is:
= 600 + 1, 520
= $ 2, 120
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ABCD is a rectangle with BC =63 and AB = 84. Find each measure.
Please help me on this question
Answer:
Your answer is A
Step-by-step explanation:
A = pi*r²
A = 3.14*70²
A = 3.14*4900
A = 15386
Use properties to rewrite the given equation. Which equations have the same solution as 2.3p – 10.1 = 6.5p – 4 – 0.01p? Select two options. 2.3p – 10.1 = 6.4p – 4 2.3p – 10.1 = 6.49p – 4 230p – 1010 = 650p – 400 – p 23p – 101 = 65p – 40 – p 2.3p – 14.1 = 6.4p – 4
Two equations that have the same solution as the given equation are;
2.3p – 10.1 = 6.49p – 4
230p – 1010 = 650p – 400 – p
What is Multiplication property of equality?Both sides of an equation will remain equal, when both sides are
multiplied by the same amount.
The given equation: 2.3·p - 10.1 = 6.5·p - 4 - 0.01·p
Simplifying the above equation by collecting like terms gives;
2.3·p - 10.1 = 6.5·p - 0.01·p - 4 = 6.49·p - 4
2.3·p - 10.1 = 6.49·p - 4
Multiplying both sides of the original equation by 100 gives
100 × (2.3·p - 10.1) = 100 × (6.5·p - 4 - 0.01·p)
230·p - 1010 = 650·p - 400 - p
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Which of the following is equal to 2?
A. 6 + 4 = (2 + 1) 3
B. (6 + 4 = 2) - 1 3
C. 6+ (4 + 2) + 1x3
D. (6 + 4) = 2 - 1×3
9514 1404 393
Answer:
D
Step-by-step explanation:
Your calculator* can tell you the answer to this. Each expression is evaluated according to the order of operations.
A: 6 + 4/3·3 = 6 +(4/3)·3 = 6 +4 = 10
B: (6 +4/2) -1·3 = 6+2-3 = 5
C: 6 +(4/2) +1·3 = 6 +2 +3 = 11
D: (6 +4)/2 -1·3 = 10/2 -3 = 5 -3 = 2
_____
* If your calculator doesn't properly use the Order of Operations, you should get one that does. The calculator behind the Go.ogle search box reliably uses the order of operations, so you can use it if your own doesn't work properly.
244 is it
real number
rational number
irrational number
natural number
integer
Answer:
Step-by-step explanation:
It is a real number, a rational number, a natural number, and an integer.
Answer:
It’s a real number, rational number, and a natural number.
What Is the slope for these two points (3,-2) and (5,6)?
Answer:
4
Step-by-step explanation:
m = Δy/Δx = (6-(-2))/(5-3) =8/2 = 4
3x-12y = 16 and x-4y = 2 solve using elimination
Answer:
Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.
Step-by-step explanation:
Help plz:)))I’ll mark u Brainliest
A table and 4 chairs costs N82. If the table costs N25, what is the cost of each chair? Find the total cost of 2 tables and 6 chairs
Answer:
Step-by-step explanation:buordjkdkeek
Two bulbs flush at regular intervals at 30 and 36 seconds respectively they flush together at 10:45 AM what time will they flush together for the second time
Answer: 10:48 AM
Explanation:
Two bulbs flash at regular intervals of 30 and 36 seconds respectively. LCM of 36 and 30 = 180. 180/60 = 3 minutes. They will flash together every 3 minutes. If they flash together at 10:45, the second time they will flash together will be 10:45 + 3 minutes = 10:48.
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Nathan invested $80,000 in an account paying an interest rate of 6% compounded
continuously. Assuming no deposits or withdrawals are made, how long would it
take, to the nearest year, for the value of the account to reach $175,600?
Answer:
Number of year = 13 year and 6 month approx.
Step-by-step explanation:
Given:
Amount invested = $80,000
Rate of interest = 6% compounded continuously
Future value of investment = $175,600
Find:
Number of year
Computation:
Future value of investment = Amount invested[1 + Rate of interest]ⁿ
175,600 = 80,000[1+6%]ⁿ
175,600 = 80,000[1+0.06]ⁿ
175,600 = 80,000[1.06]ⁿ
Number of year = 13.492 year
Number of year = 13 year and 6 month approx.
6x-y=-23, 8x+3y=-9 solve for substitution
The coordinates of the vertices of a recangle are (- 2, 3); (4, - 4)(4, 3) and (-2, -4 ). What are the dimensions of the rectangle ?
The Board of Education (DOE) claims that the average salary of substitute teachers in school
district in Nassau County, NY, is about $175 per day. A random sample of 6 school districts is
selected, and the daily salaries (in dollars) are collected into calculation with sample mean is $80
and sample standard deviation is 6.3. Calculate at α = .05 significance level whether the true
mean greater than $175.
Please explain step by step and as clear as possible
The null hypothesis is rejected.
The mean is not greater than $175.
What is the hypothesis?An assumption or concept is given as a hypothesis for the purpose of debating it and testing if it might be true.
Given:
Sample size (n) = 6
Sample mean ([tex]\bar x[/tex]) = $80
Sample standard deviation(s)=6.3
Significance level(α)=0.05
We have to test the claim that the true mean greater than $175.
The null and alternative hypotheses:
H₀ : μ = 175
H₁ : μ > 175
Here, Population Standard deviation is unknown and sample size is less than 30.
So we will use t- distribution.
Test Statistic t,
t = ([tex]\bar x[/tex] - μ) / {s/√n}
t = (80−175) / (6.3 /√6)
t = (80−175) / (6.3 / 2.45)
t = − 95 / 2.57196423
t = −36.937
degree of freedom (df) = n−1
= 6−1
= 5
p-value at t = −36.937, df = 5 and α = 0.05
Absolute value of −36.937 = 36.937
Notice that 36.937 does not show up in the table, but it does fall between the two values 31.821 and 63.657.
So, p-value = 1
Since, p-value > α
That means, we fail to reject the null hypothesis (H₀).
Therefore, the true mean is not greater than $175.
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How much kinetic energy does a 180-kg deer have when it is prancing 9 m/s?
Answer:
7290 joules
Step-by-step explanation:
The formula for kinetic energy is mv²/2 so let’s put the numbers in:
180*81/2 which is 7290 joules
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6 = z/4.5
please answer
Very Important) I need help with all my Math questions if your excellent at math and is passing your math class can you click on my name and go to my math questions and please help me with them. If correct and you need to show your work ill mark you Brainliest. Also I need Help with Health Questions also. Some have 1 answer but they aren't correct still need help with them.
Answer:
Where are the questions
Which function does not have a vertical asymptote
Answer:
[tex]y=\frac{5x}{1+2x^2}[/tex]
Step-by-step explanation:
[tex]Option ~A ~ does ~ not ~ have ~a ~ vertical~ asymptote[/tex]
--------------------------
Hope it helps...
Have a great day!!
Answer:
Step-by-step explanation:
answer is d
Find the sum and express it in simplest form.
(-7n² - 8n - 8) + (-n² + 9n + 9)
008
Clear all
Enter the correct answer.
+ BO
DONE
The simplest form of the given expression is (- 8n² +n +1)
What is simplification?Simplification is the process of making simple an expression, terms or equations so as to easy for solving or evaluating.
There are some steps for simplification such as removing parenthesis, collecting like terms, addition or subtraction of like terms and so on.
How to find the sum and express in simplest form?We are given an expression, ( -7n² - 8n -8) + (- n² + 9n +9)
In order to simplify, we first remove the parenthesis and get
- 7n² - 8n -8 - n² + 9n +9
in the next we will collect like terms
- 7n² - n² -8n +9n - 8 +9
We now add or subtract like terms
- 8n² + n+1
this is the simplest form of the given expression.
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After standardizing a NaOH solution, you use it to titrate an HCl solution known to have a concentration of 0.205 M. You perform five titrations and obtain the following results: 0.213, 0.204, 0.208, 0.200, and 0.198 M.
a) What is the mean?
b) What is the standard deviation of mean?
Answer:
The right answer is:
(a) 0.205
(b) 0.005425
Step-by-step explanation:
The given data is:
0.213, 0.204, 0.208, 0.200, and 0.198
(a)
The mean will be:
= [tex]\frac{Sum \ of \ all \ data}{No. \ of \ data}[/tex]
= [tex]\frac{0.213+ 0.204+ 0.208+ 0.200+0.198}{5}[/tex]
= [tex]\frac{1.023}{5}[/tex]
= [tex]0.2046[/tex]
or,
= [tex]0.205[/tex]
(b)
The standard deviation will be:
[tex]\sigma^2=\Sigma\frac{(x_i-\mu)^2}{N}[/tex]
[tex]=\frac{(0.213-0.2046)^2+...+(0.198-0.2046)^2}{5}[/tex]
[tex]=\frac{0.0001472}{5}[/tex]
[tex]=2.994\times 10^{-5}[/tex]
or,
[tex]=0.005425[/tex]
What is the amount of < AGF?
Answer:
Angle AGF = 140
Step-by-step explanation:
180-40 = 140
If a 2 centimeter cube is placed inside a box that is 9 cm by 5 cm by 8cm ,
what is the volume inside the larger box that is outside of the smaller box?
DO NOT ANSWER IF YOU DO NOT KNOW THE ANSWER! Whoever answers correctly will get Brainliest! :)
Answer:
360 cm3
Step-by-step explanation:
Option d is the right answer
Which graph is defined by the function given below?
y=(x + 2)(x+7)
10-
A.
-10
OA. Graph A
OB. Graph B
C. Graph C
OD. Graph D
10+
B.
10-
10
10-
D.
Graph A is defined by the function y=(x + 2)(x+7) as the graph at y=0 where the function crosses those two points .
what is function ?The study of mathematics comprises the study of quantities and their variations, equations and associated structures, shapes and their positions, and locations where they can be found. A combination of inputs and corresponding outputs are referred to as a "function," which describes the relationship between them. The term "function" refers to an association between inputs and outputs where each input produces a single, unique result. There are two domains, or scopes, assigned to each function. Usually, the symbol f is used to signify functions (x). input is an x. There are four basic categories of functions that are available: on functions, one-to-one functions, many-to-one functions, within functions, and on functions.
given
The function's zeros are
0=x+2 x=-2
and
0=x+7 x=-7
Consequently, the graph at y=0 where the function crosses those two points .
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which doesn't belong
PLEASE HELP
Find the value of x
-10
11
-6
8
Answer:
8
Step-by-step explanation:
Since it's an equilateral triangle, as you can tell from the red lines, m∠2 = 60. You can substitute to get:
⇒ 60 = 6x + 12
Subtract 12 from both sides
⇒ 48 = 6x
Divide by 6
⇒ x = 8
Therefore, the answer is 8.
Need help plz!?!?!?!?!?!
Answer:
113
Step-by-step explanation:
The volume of a sphere is [tex]\frac{4}{3}\pi r^3[/tex], where [tex]r[/tex] is the radius of the sphere. The radius of the given sphere is 3 ft, so its volume is [tex]\frac{4}{3} \pi \cdot 3^3 = 36\pi[/tex]. Using 3.14 for [tex]\pi[/tex], this is approximately equal to 113.04. Rounding to the nearest whole number, the answer is 113 cubic feet.
Answer: 113 (rounded)
Step-by-step explanation:
Hey!
So for this we just use our sphere formula and follow the steps.
Volume= 4/3 πr^3
R= radius (half of diameter)
For pi we are going to use 3.14.
Let’s work this out now.
Radius is 3 so since it is cubed, we multiply it by itself 3 times. We get 27. Now, let’s multiply this by 3.14 and get 84.78.
Lastly, multiply by 4/3. We get 112.9333. This is the volume.
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Sorry I messed any thing up!
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