Answer:
[tex]\large\boxed{-11,325}[/tex]
Step-by-step explanation:
First simplify:
[tex]-1-(n-1)=-1-n-(-1)=-1-n+1=-n[/tex]
Therefore we have:
[tex]\sum\limits_{n=1}^{150}[-1-(n-1)]=\sum\limits_{n=1}^{150}(-n)=(-1)+(-2)+(-3)+...+(-150)\\\\-1,\ -2,\ -3,\ -4,\ ...,\ -150-\text{it's the arithmetic sequence}\\\text{with the common difference d = -1.}\\\\\text{The formula of a sum of terms of an arithmetic sequence:}\\\\S_n=\dfrac{a_1+a_n}{2}\cdot n\\\\\text{Substitute}\ n=150,\ a_1=-1,\ a_n=-150:\\\\S_{150}=\dfrac{-1+(-150)}{2}\cdot150=(-151)(75)=-11,325[/tex]
Answer:
C.)
Step-by-step explanation:
What is the surface of a sphere with a radius of 9 units
Answer: 324π units²
Step-by-step explanation:
The formula for the surface area of a sphere is: A=4πr²
Now we just plug in 9 for r:
A = 4π(9)²
A = 4π*81
A = 324π
Answer:
1018 units^2
Step-by-step explanation:
The surface area of a sphere is given by A = 4pi(r)^2, where r is the radius.
Here, A = 4(3.14159)(9 units)^2 = 1018 units^2, to the nearest integer.
pls can someone help me with this, and please explain why?
Answer:
C
Step-by-step explanation:
recall the property [tex]a^{1/b}= \sqrt[b]{a}[/tex]
if we apply this to this case,
[tex]x^{1/4} = \sqrt[4]{x}[/tex]
- [tex]x^{1/4} = - \sqrt[4]{x}[/tex]
Tim knows the volume and base area of a wooden chest that is in the shape of a rectangular prism. If the volume is 524 cubic unit and the base area is 15 square unit, what is the height of the chest? 124 unit 1124 units 112 unit 1112 units
Answer: 34.93 units
Step-by-step explanation:
The volume of a rectangular prism can be calculated with this formula:
[tex]V=Bh[/tex]
Where "V" is the volume, "B" is the base area and "h" is the height.
Since we need to find the height, we must solve for "h":
[tex]h=\frac{V}{B}[/tex]
We know that the volume of that wooden chest (which is in the shape of a rectangular prism) is 524 cubic units and the base area is 15 square units. Then:
[tex]V=524units^3\\B=15units^2[/tex]
Subsitituting these values into [tex]h=\frac{B}{V}[/tex], we get that the height of the chest is:
[tex]h=\frac{524units^3}{15units^2}=34.93units[/tex]
Perform the indicated operation.
Answer : The correct answer is, [tex]29\frac{62}{7}[/tex]
Step-by-step explanation :
The given expression is:
[tex]10\frac{3}{7}+19\frac{5}{9}[/tex]
Step 1 : Convert mixed fraction into fraction.
[tex]\frac{73}{7}+\frac{176}{9}[/tex]
Step 2 : Taking L.C.M
[tex]\frac{(9\times 73)+(176\times 7)}{63}[/tex]
[tex]\frac{(657)+(1232)}{63}[/tex]
[tex]\frac{1889}{63}[/tex]
Step 3 : Convert fraction into mixed fraction.
[tex]=29\frac{62}{7}[/tex]
Thus, the correct answer is, [tex]29\frac{62}{7}[/tex]
Columbia,South Carolina, is located at 34degrees north latitude. Use the equation to estimate the average annual snowfall for Columbia.
The question is missing the specific equation needed to estimate average annual snowfall for Columbia, South Carolina at 34 degrees north latitude. Factors like latitude and climate patterns influence snowfall levels, and based on Columbia's location, low snowfall would be expected.
Explanation:The student is asking about an equation to estimate average annual snowfall for a specific location based on its latitude, in this case, Columbia, South Carolina, which is at 34 degrees north latitude. Unfortunately, the explicit equation needed to estimate the snowfall is not provided in the question or the contextual information. Generally, to estimate snowfall or precipitation levels using latitude, additional climatic data such as elevation, proximity to oceans or large bodies of water, and prevailing wind patterns are also necessary.
However, referring to the geographical regions mentioned, it's noted that certain latitudes often correspond with specific climate patterns. The comparison with other regions suggests that areas farther away from the equator, especially those close to either the Arctic Circle or the Antarctic Circle, experience more extreme temperatures and snowfall. Given the subtropical zone where Columbia, South Carolina, is located, the expected average snowfall would likely be relatively low compared to higher latitudes.
Solve for y. Py + qy = -4y + 8
[tex]\bf Py+qy=-4y+8\implies Py+qy+4y=8\implies \stackrel{\textit{common factor}}{y(P+q+4)}=8 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill y=\cfrac{8}{P+q+4}~\hfill[/tex]
Answer:
y = 8 / (P + q + 4)
Step-by-step explanation:
Group ALL y terms on the left side: Py + qy + 4y = 8.
Factor y out of the left side: y(P + q + 4) = 8
Divide both sides by (P + q + 4): y = 8 / (P + q + 4)
Choose the table that represents g(x) = 3⋅f(x) when f(x) = x − 1.
x g(x)
1 2
2 1
3 0
x g(x)
1 2
2 5
3 8
x g(x)
1 5
2 8
3 11
x g(x)
1 0
2 3
3 6
[tex]\bf f(x)=x-1\qquad \qquad g(x)=3\cdot f(x)\implies g(x)=\underline{3(x-1)} \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{ccll} x&g(x)\\ \cline{1-2} 1&0\\2&3\\3&6 \end{array}\qquad \qquad (\stackrel{x_1}{1}~,~\stackrel{y_1}{0})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{6})[/tex]
[tex]\bf slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{6-0}{3-1}\implies \cfrac{6}{2}\implies 3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-0=3(x-1)\implies y=\underline{3(x-1)}[/tex]
The table that represents g(x) = 3⋅f(x) when f(x) = x − 1 is that of Option D;
x g(x)
1 0
2 3
3 6
We are given;f(x) = x − 1
We want to find; g(x) = 3⋅f(x)
This means that; g(x) = 3(x - 1)
Looking at the options, the input values to be used are x = 1, 2 3.
Thus;When x = 1; g(x) = 3(1 - 1 )
g(x) = 0
When x = 2; g(x) = 3(2 - 1)
g(x) = 3
When x = 3; g(x) = 3(3 - 1)
g(x) = 6
Looking at the options, only the table in option D is correct.
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What is AB?
a. 6cm
b. 9cm
c. 4cm
d. 2.2cm
Answer:
AB = 4 cm
Step-by-step explanation:
The tangent and secant are drawn from an external point to the circle.
Then the square of the measure of the tangent is equal to the product of the external part of the secant and the entire secant.
let AB = x, then
x(x + 5) = 6²
x² + 5x = 36 ( subtract 36 from both sides )
x² + 5x - 36 = 0 ← in standard form
(x + 9)(x - 4) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 9 = 0 ⇒ x = - 9
x - 4 = 0 ⇒ x = 4
However x > 0 ⇒ x = 4 ⇒ b = 4 CM
A direct variation function contains the points (-8,-6) and (12,9) which equation represents the function
Answer:
y = 0.75x
Step-by-step explanation:
Given y varies directly as x then the equation relating them is
y = kx ← k is the constant of variation
To find k substitute either of the 2 points into the equation
Using (12, 9 ), then
k = [tex]\frac{y}{x}[/tex] = [tex]\frac{9}{12}[/tex] = 0.75, so
y = 0.75x ← equation of variation
if it takes one hour to paint 85ft then how long will it take to paint 410.2ft?
Heather has $45.71 in her savings account. She bought six packs of markers to donate to her school. Write an expression for how much money she has in her bank account after the donation.
Answer: 45.71 - 6x = y
Step-by-step explanation:
45.71 - 6x = y
x= the amount 1 pack of markers cost
y= how much money Heather has after the donation
Answer: The required expression for amount left in her bank after the donation is given by [tex]Amount\ left=45.71-6x[/tex]
Step-by-step explanation:
Since we have given that
Amount of her saving = $45.71
Number of packs of markers to donate to her school = 6
Let the cost of each pack of markers be 'x'.
So, Amount left in her bank account after the donation is given by
[tex]Amount\ left=45.71-6x[/tex]
Hence, the required expression for amount left in her bank after the donation is given by
[tex]45.71-6x[/tex]
In two or more complete sentences, prove how to find the third term of the expansion of (2x + y)4.
Answer:
The third term is [tex]24x^2y^2[/tex]
Step-by-step explanation:
The formula used to find the third term of the expansion (2x+y)^4 is called Binomial Theorem
The Binomial Theorem is:
[tex](x+a)^n = \sum_{k=0}^{n} {n \choose k}x^ka^{n-k}\\[/tex]
In the given question x = 2x
a = y
n = 4
We have to find the third term, so value of k will be 2 as k starts from 0
Putting the values in the Binomial Theorem
[tex]= {4 \choose 2}(2x)^2(y)^{4-2}\\= {4 \choose 2}4x^2(y)^{2}[/tex]
[tex]{n \choose k}==\frac{n!}{k!(n-k)!}[/tex]
Putting the values:
[tex]= {4 \choose 2}4x^2(y)^{2}\\=\frac{4!}{2!(4-2)!}4x^2(y)^{2}\\=\frac{4!}{2!2!}4x^2y^{2}\\=\frac{4*3*2*1}{2*2}4x^2y^{2}\\=\frac{24}{4}4x^2y^{2}\\=6*4x^2y^{2}\\=24x^2y^2[/tex]
So, the third term is [tex]24x^2y^2[/tex]
Find the value for b.
3x^2– X – 10 = 0
Entor the correct answer
[tex]b=-1[/tex]
.............................
Answer:
X=2, X= -5/3
Step-by-step explanation:
let's solve your equation step-by-step
3x^2-x-10=0
step 1: factor left side of equation.
(3x+5)(x-2)=0
step 2: set factors equal to 0.
3x+5=0 or x-2=0
x= -5/3 or x=2
What statement about the scatter plot is true ?
Answer:
the first one
Step-by-step explanation:
the number of mistakes went from 19 the first week of class to 0 the 20th week
How do you find the same y intercept
Answer:
D
Step-by-step explanation:
The y-intercept is the number or constant at the end of the equation.
D sets both of their y-intercepts to -6, so it's correct.
=============================================
Explanation:
Plug x = 0 into f(x)
f(x) = 4x + 1
f(0) = 4(0) + 1
f(0) = 1
The y intercept of f(x) is 1
----------
Now plug x = 0 into g(x)
g(x) = 3^x - 2
g(0) = 3^0 - 2
g(0) = -1
The y intercept of g(x) is -1
----------
Note how the y intercepts are 2 units apart.
Each of the answer choices are in the form of f(x) + M and g(x) + N. The goal is to see which M and N values will be 2 units apart. In this case, that would be choice C where M = -1 and N = 1
We see that f(x) - 1 = f(0) - 1 = 1 - 1 = 0 and g(x) + 1 = g(0) + 1 = -1 + 1 = 0
Therefore, f(x) - 1 and g(x) + 1 have the same y intercept of 0.
The largest possible circle is cut out of a square whose side length is 8 feet. What will be the approximate area, in square feet, of the remaining board?
Answer:
=13.73 ft²
Step-by-step explanation:
The diameter of the largest possible circle that can be cut out of a square is equal to the length of the side of the square.
Therefore the diameter of the circle cut from a square of side 8ft =8ft
r=4ft
Area of the remaining board= Area of square- area of circle
=side²-πr²
=8²-π×4²
=64-16π
=13.73 ft²
can somebody help me
Explain why 1 cm3 = 1000 mm3.
Answer:
The answer in the procedure
Step-by-step explanation:
Remember that
[tex]1\ cm=10\ mm[/tex]
Elevated to the cube both sides
[tex](1\ cm)^{3}=(10\ mm)^{3}[/tex]
[tex](1)^{3}\ cm^{3}=(10)^{3}\ mm^{3}[/tex]
[tex]1\ cm^{3}=1,000\ mm^{3}[/tex]
To complete such a customer at your store needs to purchase vertical brackets to attach to the wall the customer wants to show them to be at least 48 inches in 60 in section 248 inspection cost 1295 to 16 section cost 6095 the brackish if you want switch from each end and no more than 24 inches apart what will the total cost of the brackets before tax
Answer:
67
Step-by-step explanation:
you have to divide
Answer
Step-by-step explanation:$149.50 is the answer
Use the given information to determine the exact trigonometric value.
Answer: [tex]\bold{a.\quad -\dfrac{2\sqrt{6}}{5}}[/tex]
Step-by-step explanation:
[tex]sin\theta=\dfrac{y}{h}\implies y=-1, h=5\\\\\\\text{Use Pythagorean Theorem to find x:}\\x^2 + y^2 = h^2\\x^2 + (-1)^2=5^2\\x^2+1=25\\x^2=24\\x=\sqrt{24}\\x=2\sqrt{6}[/tex]
[tex]\text{Since }\theta\text{ is between }\pi\text{ and }\dfrac{3\pi}{2} \text{ (Quadrant III)},\text{ then x and y are negative.}\\\implies x=-2\sqrt{6}\\\\\\cos\theta = \dfrac{x}{h}\quad =\boxed{-\dfrac{2\sqrt{6}}{5}}[/tex]
when using rational root theorem, which of the following is a possible root of the polynomial function below F(x)=3x^3-x^2+4x+5
a.-7
b.6
c.-3/5
d.4/3
Answer:
C is your answer I did this test before.
Step-by-step explanation:
good luck.
C is your answer
We have given that,
when using the rational root theorem, which of the following is a possible root of the polynomial function below
F(x)=3x^3-x^2+4x+5
What is the rational root theorem of plynomial?
The rational root theorem says, a rational zeros of a polynomial is of the form p/q, where p is a factor of the constant term and q is a factor of the leading coefficient.
p/q=±a0/a1
from the given polynomial a1=3 and a0=5
p/q=±3/5
+3/5 is not in the option so the correct option -3/2
So the root of the given polynomial is -3/5
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What is the value of this limit?
Answer:
a
Step-by-step explanation:
Colette took a speed reading class, and afterward she was able to read a 368-page book in 46 minutes. At what rate did Colette read?
Answer:
8 pages/ minute
Step-by-step explanation:
To find the rate, we take the pages and divide by the minutes
368 pages / 46 minutes
8 pages/ minute
Sorry for all the questions
Jerod will need 19 pages to display all his 112 photos.
If you divide 112 by 12 you get 18.6667.
Since Jerod cannot break his paper into a half for the .6667 space, he would need to use 19 pages in total. All his 18 pages will have 6 photos each but his last 19th will have 1 photo left on it.
Hope this helps!!!
Mark as Brainliest Please!!!
True or False
1/5^-2=25
That is true for sure!!!
The statement 1/5⁻² =25 is true.
Explanation:The statement 1/5⁻² = 25 is true.
To simplify the expression, we can rewrite 1/5⁻² as 5²/1. When we have a negative exponent in the denominator, it moves to the numerator and becomes positive.
Therefore, 1/5⁻² is equivalent to 5²/1.
Since 5² equals 25, we can conclude that 1/5⁻² is indeed equal to 25.
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What is the value of x?
Answer:
x = 8
Step-by-step explanat
Answer:
6
Step-by-step explanation:
Multiply: 4x^3/4x^2(2^3
Answer:
The answer is B
Step-by-step explanation:
happy cheating
Answer:
The answer is B
Step-by-step explanation:
And it's not cheating just trying to make it through high school.
28lbs is what % of 58
Answer:
48.28
Step-by-step explanation:
2800:58 = 48.28
A flute is on sale for 20% off. Including the discount and 8% tax, the sales price is $216.
Answer:
Before Tax: $240
After Tax: $259.20
Step-by-step explanation:
If we are trying to find the original price then here:
216/1.08 = 200
This took away the tax now we need to take away the discount:
200 x 1.2 = 240
Before Tax: $240
After Tax: $259.20
The original after tax price of the flute is $259.20.
Determining the original after tax price of the flute.
The first step is to remove tax from the sales price. In order to remove tax, divide the sales price by (1 + tax): $216 / 1.08 = $200
The second step is to remove the effect of discount. In order to do this multiply 200 by (1 + discount): 200 x 1.2 = $240.
The after tax original price = $240 x 1.08 = $259.20
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athy's customer base is 2/3 residential and 1/3 business . if she has 350 residential customers, how many total customers does she have?
Answer: She has 525 costumers.
Step-by-step explanation:
We know that the costumer base is [tex]\frac{2}{3}[/tex] residential and [tex]\frac{1}{3}[/tex] business. This means that:
[tex]\frac{2}{3}=350[/tex] residential customers
Let be "x" the total costumers Athy has and "y" the number of business costumers.
Then "x" must be:
[tex]x=350+y[/tex]
Then, in order to find "y" , we need to multiply the number of residential costumers by [tex]\frac{1}{3}[/tex] and divide the product by [tex]\frac{2}{3}[/tex] :
[tex]y=\frac{(350)(\frac{1}{3})}{\frac{2}{3} }\\\\y=175[/tex]
Substituting we get that "x" is:
[tex]x=350+175=525[/tex] costumers
6. A quadrilateral has three acute angles, each measuring 75°. Find the fourth angle
Answer:
Heya mate here's the answer
let the 4th angle be x
so 75°+ 75°+75° +x= 360°
=> x= 360 - 225
=> x = 135°
therefore the 4th angle= 135°
hope this helps
Step-by-step explanation: