Answer:
This number line show the inequality x > 2
123
Which expression is equivalent to | 18 ? Assume x 20.
o
3x
O
3
0
2x
3
First, I'm going to separate factor the expression inside of the square root.
sqrt[ (2/18) * (x^5) ]
sqrt[ (1/9) * (x^5) ]
We can take the square root of 1/9 easily, because 1 and 9 are both perfect squares. The square root of 1/9 is 1/3.
Looking at the x^5, we can separate it into x^2 * x^2 * x^1. The square root of x^2 is x. So, we now also have an x^2 on the outside because there are two x^2s in our expanded form.
ANSWER: (x^2 * sqrt(x)) / 3
(Option 1)
Hope this helps!
A drinking container is shaped like a cone and must hold at least 10 ounces of fluid. The radius of the top of the container is 2.25 inches. The steps for determining the height of the cone-shaped container are shown below.
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Answer:
C. h ≥ 1.9 in
Step-by-step explanation:
As the final step, divide both sides of the inequality by 5.3:
(5.3h)/5.3 ≥ 10/5.3
h ≥ 1.9
A team of 22 soccer players needs to choose 3 players to fill water bottles. How many different groups can be made?
Answer:
1540
Step-by-step explanation:
To figure out the answer you must compute 22 choose 3. To compute this, we can plug the values into the Combination formula, which goes like this:
[tex]\frac{n!}{r!(n-r)!}[/tex], where n is the sample size, and r is the amount being chosen. In this case, n is equal to the total 22 players, and r is the 3 players being chosen to fill the bottles. Plugging the values in, we have the answer as
[tex]\frac{22!}{3!(22-3)!}[/tex]. 22 minus 3 simplifies to 19 factorial, and we can expand 22 factorial out from the numerator.
[tex]\frac{22(21)(20)(19!)}{3!(19!)}[/tex]
We can get rid of the 19 factorial from both the numerator and the denominator, and we are left with
[tex]\frac{22(21)(20)}{3(2)}[/tex]
We can cancel out the 3 with the 3 in 21, and we can cancel out the 2 with the 2 in 20. We are left with
[tex]22(7)(10)[/tex]
7 times 10 is equal to 70, and 70 times 22 is equal to 1540 total combinations.
Find the area of the shaded region.
A. 112.5 in²
B. 73.5 in²
C. 122.5 in²
D. 147 in²
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Answer:
B. 73.5 in²
Step-by-step explanation:
The triangle area is half the rectangle area, so the shaded area is also half the rectangle area:
A = 1/2LW = 1/2(21 in)(7 in) = 73.5 in²
Answer:
B.) 73.5 in2
Step-by-step explanation:
I got it correct on founders edtell
Which expression is equivalent to ³✓x⁵y?
•x⁵/³y
• x⁵/³y⅓
•x⅗y
•x⅗y³
Answer:
x⁵/³y
Step-by-step explanation:
x⁵/³y is equivalent to ³✓x⁵y.
I cannot solve the equation.
√(7d+1)-4=11
Answer:
I believe the answer is d = 32
Step-by-step explanation:
You should isolate the radical, then raise each side of the equation to the power of its index.
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Answer:
d = 32
Step-by-step explanation:
Add 4, then square, and solve the resulting linear equation.
√(7d +1) = 15
7d +1 = 225 . . . . . . square both sides
7d = 224 . . . . . . . . subtract 1
d = 32 . . . . . . . . . . divide by 7
What is the value of Z? Z =2^3
the value of Zis 8.
Z =2^3=8
Now we have to,
find the required value of Z.
→ Z = 2^3
→ [Z = 8]
Therefore, value of Z is 8.
A sequence is defined recursively by the formula f(n+1)=-2f(n). The first term of the sequence is -1.5. What is the next term in the sequence ?
Answer:
next term is 3
Step-by-step explanation:
[tex]f(n+1)=-2f(n)\\\\f(1)=-1.5=-\frac{3}{2}f(2)=-2f(1)=-2*(-\frac{3}{2})=3[/tex]
Answer:
3
Step-by-step explanation:
Took the test and got this right.
Find the perimeter, in inches, of the parallelogram.
A parallelogram is 5 inches wide, 15 inches long, and 4 inches high.
Answer:
the answer is 24
Step-by-step explanation:
you need to add all the number above
4 pts
John makes $2,800 per month and has an opportunity to invest $150 per month at an APR of 4.5% in a 401K plan through work. He plans to retire in 30 years.
Type in the EXACT formula you would use in excel (no spaces) to find the amount in the account after he has invested for 30 years.
Using excel, what is the answer to the formula from the previous part?
How much money will he deposit into the 401K over the 30 years?
How much total interest will he earn on his 401K over the 30 years?
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Answer:
=FV(4.5%/12,30*12,-150,0)$113,907.92$54,000$59,907.92Step-by-step explanation:
We have used the formula shown in Go.ogle Sheets to give the results shown. (We presume Excel has a similar function.)
The result is that the future value of the investment is $113,907.92.
The amount deposited is ($150/mo)(12 mo/yr)(30 yr) = $54,000.
The interest earned is the difference: $113,907.92 -54,000 = $59,907.92.
Please solve the following polynomial functions for the variable as defined.
[tex]1. \ \ x^2 - 5x + 6[/tex]
[tex]2. \ \ 4x^3 - 3x^2 + 2[/tex]
Answer:
1. x = 2, 3
2. x = -0.607007
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Terms/CoefficientsFactoring Solving by graphingStep-by-step explanation:
1.
Step 1: Define
x² - 5x + 6
Step 2: Solve for x
Factor: (x - 2)(x - 3) = 0Solve: x = 2, 32.
Step 1: Define
Identify
4x³ - 3x² + 2
Step 2: Graph
See Attachment
Step 3: Solve for x
Where the graph crosses the x-axis would be the solution to the polynomial.
x = -0.607
1:
x=2,3
2:
x≈−0.60700729
Answer:
Polynomials are expressions with one or more terms with a non-zero coefficient. A polynomial can have more than one term. In the polynomial, each expression in it is called a term.
Solution given:
1:x²-5x+6
let
f(x)=x²-5x+6
It is polynomial in one variable x
According to definition of variable
f(x)=0
substituting value of f(x)
x²-5x+6=0
Doing middle term factorisation
6=3*2*1
remember that in front of constant term is positive sigh
so we need to add factor of 6 to get 5
I.e. 3+2=5
substituting (3+2) in place of 5
x²-(3+2)x+6=0
x²-3x-2x+6=0
taking common from each two term
x(x-3)-2(x-3)=0
again taking common
(x-3)(x-2)=0
either
x-3=0
x=3or
x-2=0
x=22:
4x³-3x²+2
let
f(x)=4x³-3x²+2
It is polynomial in one variable x.
According to definition of variable
f(x)=0
we cannot solve it by factoring so solving by graph
Graph is in attachment.
The solution is the x-value of the point of intersection.
x≈−0.60700729
Which of the following expressions are equivalent to -3x- 6/10
Choose all that apply:
A=3/6x1/10
b=- 3/10x-6
c= none of the above
Answer:
c= none of the above
Step-by-step explanation:
-3x- 6/10
This has two separate terms, a term with a variable
-3x and a term with a constant -6/10
A=3/6x1/10 This has only one term
b=- 3/10x-6 This has a different x term -3/10 which is not -3
c= none of the above
Can someone help me out
Answer:
7.5
Step-by-step explanation:
The mode is the number that appears most frequently in the set
The number 7.5 appears 3 times which is the most out of all of the numbers, therefore the mode is 7.5
Write the equation of a line in slope intercept form that passes through the two points. -5,-2 and -3,8 PLS HELP
Answer:
y = 5x + 23
Step-by-step explanation:
y2 - y1 / x2 - x1
8 - (-2) / -3 - (-5)
10 / 2
= 5
y = 5x + b
-2 = 5(-5) + b
-2 = -25 + b
23 = b
I need someone to do this question
Answer:
$1487.50
Step-by-step explanation:
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Answer:
$1487.50
Step-by-step explanation:
The amount of interest due is ...
I = Prt
where P is the loan amount, r is the annual rate, and t is the number of years. Here, t = 6 months = 1/2 year, so the interest due is ...
I = $1400×0.125×1/2 = $87.50
The total amount due is the sum of the loan amount and the interest:
due = $1400 +87.50 = $1487.50
The total amount due after 60 months is $1487.50.
0.8 +2.4x = 3.2x = 1.6
Answer:
-1
Step-by-step explanation:
I solved it the way one-variable equations are solved.
Answer:
-1 is ur answer
Step-by-step explanation:
Use the figure to find x
Answer:
The value of x is [tex]\frac{7\sqrt{6}}{2}[/tex]
Solution given:
AB=7
BD=x
<BAC=60°
<DBC=45°
In right angled triangle ABC
Tan 60°=opposite/adjacent
Tan 60°=BC/AB
Substitute value
[tex]\sqrt{3}[/tex]=[tex]\frac{BC}{7}[/tex]
BC=[tex]7\sqrt{3}[/tex]
again
In right angled triangle BCD
Using Cos angle
Cos 45=adjacent/hypotenuse
Cos45°=BD/BC
Substituting value
[tex]\frac{\sqrt{2}}{2}=\frac{x}{7\sqrt{3}}[/tex]
Doing criss cross multiplication
[tex]\frac{\sqrt{2}}{2}*7\sqrt{3}=x[/tex]
x=[tex]\frac{7\sqrt{6}}{2}[/tex]
Write an equation for a function y=square root of x then shifted up 8 units
Answer:
y= x^2 + 8
Step-by-step explanation:
x square rooted is x^2 and shifted up 8 unit probably means that it wants the y-intercept to be 8.
help me please, i don't know this
its full form is portable document format
Find the expression that is equivalent to 7(x2 – 5x + 1).
Answer:
7x^2 -35x +7
Step-by-step explanation:
7(x^2 – 5x + 1)
Distribute
7x^2 -7*5x +7*1
7x^2 -35x +7
twelve people enter a contest. prizes will be given for first second and third place. how many ways can the prizes be given
Answer:
1320 ways
Step-by-step explanation:
Number of contestants = 12
Positions that are n be awarded = First, Second, Third
Number of contestants who could be first = 12 (all 12 contestants)
Number of contestants who could be second = 11 (all 12 contestants - first)
Number of contestants who could be third = 10 (all 12 contestants - first and second )
The number of ways prices can be given :
(1st * 2nd * 3rd) = 12 * 11 * 10 = 1320 ways
Billy's heart rate is 13 beats every 10 seconds. What is his heart rate in beats per MINUTE (bpm)?
Reminder: 1 Minute=60 Seconds
(A)23 bpm
(B)63 bpm
(C)78 bpm
(D)130 bpm
Find the sum of the arithmetic series given a1=9, d=3, and n=14.
A. 797
B. 399
C. 1594
D. 798
Answer:
B) 399
Step-by-step explanation:
We want to find the sum of the arithmetic series given that:
[tex]a_1=9, \, d = 3, \text{ and } n = 14[/tex]
In other words, we want to find the sum of the first 14 terms of the series when the first term is 9 and the common difference is 3.
Recall that the sum of an arithmetic series is given by:
[tex]\displaystyle S = \frac{n}{2}\left(a + x_n\right)[/tex]
Where n is the amount of terms, a is the first term, and xₙ is the nth or last term.
We will need to find the last term. We can write a direct formula. The general form of a direct formula is given by:
[tex]x_n=a+d(n-1)[/tex]
Since the initial term is 9 and the common difference is 3:
[tex]x_n=9+3(n-1)[/tex]
Then the 14th or last term is:
[tex]\displaystyle x_{14}=9+3((14)-1)=9+39=48[/tex]
Then the sum of the first 14 terms is:
[tex]\displaystyle \begin{aligned} S_{14} &= \frac{14}{2}\left(9+48\right) \\ \\ &= 7(57) \\ \\ &= 399\end{aligned}[/tex]
Our answer is B.
nếu nhà nghiên cứu chọn đơn vị thứ k từ một tổng thể n đơn vị, điều này có ý nghĩa cô ấy đang sử dụng kỹ thuật chọn mẫu nào? Vì sao?
Answer:
Simple random sampling
Step-by-step explanation:
Every element of the population does have an equal probability of getting chosen in a basic random sampling. The entire population should be included in your sample frame. To conduct this sort of sampling, technologies such as random numbers or other approaches relying completely on chance can be used.
Find the area of an octagon whose side length is 16 units and its apothem is 36.63 units.
Answer:
2,344.32 units
Step-by-step explanation:
the area = 8× ½× 16 × 36.63
= 2,344.32 units
can someone help with these? ik the answers i just don’t know how to show work
Step-by-step explanation:
use trigonometry ratios
Tristen is packing lunch boxes for the school trip. Each lunch box consists of 1 sandwich, 1 fruit, and 1 drink. Tristen can choose from 3 types of sandwiches, 4 types of fruit, and 2 types of drinks. How many different lunch boxes can Tristen pack?
(question: is this a combination or a permutation?)
Answer:
2
Step-by-step explanation:
Boat A leaves a dock headed due east at 2:00PM traveling at a speed of 9 mi/hr. At the same time, Boat B leaves the same dock traveling due south at a speed of 15 mi/hr. Find an equation that represents the distance d in miles between the boats and any time t in hours.
Answer: [tex]17.5t[/tex]
Step-by-step explanation:
Given
Speed of boat A is [tex]v_a=9\ mi/hr[/tex]
Speed of boat B is [tex]v_b=15\ mi/hr[/tex]
Both are moving perpendicular to each other
Distance traveled by Boat A [tex]x_a=9t[/tex]
Distance traveled by Boat B [tex]x_b=15t[/tex]
Distance between them is given by Pythagoras theorem
[tex]\Rightarrow d^2=(x_a)^2+(x_b)^2\\\\\Rightarrow d^2=(9t)^2+(15t)^2\\\\\Rightarrow d=\sqrt{(9t)^2+(15t)^2}\\\\\Rightarrow d=\sqrt{81t^2+225t^2}\\\\\Rightarrow d=\sqrt{306t^2}\\\\\Rightarrow d=17.49t\approx 17.5t\ \text{miles}[/tex]
Distance between them is [tex]17.5t[/tex]
Use a table of values to graph the function ƒ(x) = x−−√. Choose the correct graph from the options below.
Answer:
B
Step-by-step explanation:
The square root function's graph is graph (b). This makes logical sense, because, when taking the square root (the principal root in particular), a general rule is that both the input and the output must be positive. Moreover, if one were to create a table of values to find points on the graph of the function, each of the points can be found on graph (b).
[tex]f(x)=\sqrt{x}[/tex]
x y
1 1
4 2
9 3
16 4
Therefore graph (B) is the correct answer.
Can I get help it’s EZ points?
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Answer:
maximum: 16minimum: -24Step-by-step explanation:
The attache graph shows the solution region is bounded by lines through the points (-2, 4), (6, 0), and (3, -6).
The solution (x, y) = (-2, 4) gives the maximum value of z: 16.
The solution (x, y) = (3, -6) gives the minimum value of z: -24.