Answers
So the right answer is of option B.
Look at the attached picture
Hope it will be helpful to you..
Good luck for your test...
Related Questions
Urgent please solve quickly please!
Solve the system of linear equations by substitution
-x+y=7
6x-y=-7
Answers
Answer: x = 0, y = 7
-x+y=7
add x to both sides
y=x+7
plug this in for y in the other equation
6x-(x+7)=-7
simplify
6x-x-7=-7
simplify
5x-7=-7
add 7 to both sides
5x=0
divide both sides by 5
x=0
plug in to one of the equations to find y
-(0)+y=7
y=7
Therefore, x=0 and y=7.
Hope this helps!
Answer:
x = 0. y = 7. (0,7)
Step-by-step explanation:
-x+y=7
+x. +x
y = x +7
6x-y= -7
6x - (x + 7) = -7
6x - x - 7 = -7
5x -7 = -7
+ 7. +7
5x = 0
÷5. ÷5
x = 0
-x + y = 7
0 + y = 7
y = 7
A store buys shirts from a distributor for $10 each and marks them up 50%. After selling them for 3 weeks, they put them on sale for 50% off. Is the discounted price $10?
Answers
Answer:
No, it’s 7.50
Step-by-step explanation:
The discounted price is 7.5, but according to question the discounted price is $10. Therefore given statement is wrong.
What is percentage?Percentage is a measurement to find value of given number out of hundred.
Given that,
Cost price of one shirt = $10.
Also, Shopkeeper marks up 50 % on shirts.
Marked up price = 10 x 50% = 10 x 50 / 100 = $15
Since, shopkeeper gives discount as put the shirts on sale for 50% off.
So the price after giving discount = 15 x 50 / 100 = 7.5
The discounted price of shirt is 7.5.
Hence, the given statement that is discount price is $10 is incorrect.
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Need help ASAP. WILL MARK BRAINLIEST.
Answers
Answer:
8.6 cm
Step-by-step explanation:
Please see the picture attached below.
Consider the triangular pyramids shown. Pyramid 1 Pyramid 2 Pyramid 1 has 4 triangular sides with areas 44 meters squared, 62 meters squared, 24 meters squared, and 55 meters squared. [Not drawn to scale] Pyramid 2 has 4 triangular sides with areas 24 meters squared, 56 meters squared, 33 meters squared, and 14 meters squared. [Not drawn to scale] Pyramid 3 Pyramid 4 Pyramid 3 has 4 triangular sides with areas 26 meters squared, 60 meters squared, 31 meters squared, and 10 meters squared. [Not drawn to scale] Pyramid 4 has 4 triangular sides with areas 30 meters squared, 44 meters squared, 32 meters squared, and 15 meters squared. [Not drawn to scale] Which has the least lateral area? (Recall the formula for the area of a triangle, A = one-half b h) Pyramid 1 Pyramid 2 Pyramid 3 Pyramid 4
Answers
Answer:
c
Step-by-step explanation:
Answer:
Cc
Step-by-step explanation:
Find the lateral area and surface area of a regular hexagonal right prism is the base edges are 10 and the height is 12.
Round your answer to the nearest tenth.
LA = units squared
SA = units squared
Answers
Answer:
Step-by-step explanation:
a hexagonal prism is made up of two bases that are hexagons and six faces that are rectangles.
Lateral surface area, LA = Perimeter × height
Perimeter = number of sides × length of each side
Perimeter, P = 6 × 10 = 60
LA = 60 × 12 = 720 units squared
Area of each base, B = 1/2a × perimeter
Where
a = apotherm
We would determine the length of the apotherm of each base of the prism by applying the formula,
a = s/[2tan(180/n)]
Where
s = length of each side = 10
n = 6 sides
a = 10/[2tan(180/6) = 10/[2tan30)
a = 8.66
B = 1/2 × 8.66 × 60 = 259.8
Total surface area = LA + 2B
Total surface area = 720 + 2 × 259.8 = 1239.6 units squared
in a class of 26 student, 15 of them like maths, 13 of them like english and 9 of them don't like maths or english.
Find the probability that a student chosen at random like english but not maths.
Answers
Answer:
2/26
Step-by-step explanation:
The total number of students = 26 students
Number of students that like maths = 15 students
Number of students that like English = 13 students
Number of students that does not like English or maths = 9
We have to find the number of students that likes both Maths and English.
Therefore,
Let x be the number of student that like both Maths and English subjects
15 - x + x + 13 - x + 9 = 26
-x + 37 = 26
-x = -11
x = 11
Number of student that offer english but not math
Number of students that like English but not Maths = Number of Students that like English - Number of students that like English and Maths
= 13 - 11 = 2
Therefore, probability that a student chosen at random like English but not Maths.
Probability = Number of events ÷ Number of possible outcomes
Number of events = Number of students that like English but not Maths= 2
Number of Possible outcomes = Total number of students = 26
The probability that a student chosen at random like English but not Maths.
= 2/26
***Please Help ASAP***
The mean life of a Brand Q car battery is 36 months. The standard deviation is 4 months.
68% of all batteries will have a life between _____ months and _____ months.
95% of all batteries will have a life between _____ months and _____ months.
Answers
Answer:
Step-by-step explanation:
Let x be a random variable representing the life of a Brand Q car battery. With the mean and standard deviation given, then the Empirical Rule says the that
1) About 68% of the x values lie between 1 standard deviation below and above the mean.
2) About 95% of the x values lie between 2 standard deviations below and above the mean.
3) About 99.7% of the x values lie between 3 standard deviations below and above the mean.
From the information given,
mean = 36 months
Standard deviation = 4 months
Therefore,
1) 68% of all batteries will have a life between 36 - 4 = 32 months and 36 + 4 = 40 months.
2) 95% of all batteries will have a life between 36 - 2(4) = 28 months and 36 + 2(4) = 44 months.
The number of computers a certain computer store sold since 2005 can be modeled by the function N(t)=5t+106 and the price per computer can be modeled by P(t)=13t^2-25t plus 600, where t is the number of years since 2005. According to this model, what is the total amount of revenue generated by the computer store's sales in 2010? Round your answer the nearest cent.
Answers
Answer:
104800
Step-by-step explanation:
The revenue is the profit times the number of computers sold
R(t) = P(t) * N(t)
= (13t^2-25t+600) * ( 5t+106)
We want the revenue in 2010 which is 5 years from 2005 so t = 5
R(5) = (13* 5^2-25*5+600) * ( 5*5+106)
= (13 *25 - 125+600)*(25+106)
= (325-125+600) * ( 25+106)
(325-125+600) * ( 25+106)
800* 131
104800
Answer:
104,800
Step-by-step explanation:
2010 is 5 years after 2005, so t = 5
The number of computers sold:
N(5)=5(5)+106 = 131
Price per computer:
P(t)=13(5²)-25(5)+600 = 800
Revenue:
N × P
131 × 800
104800
The area of a circle is 4π x 2 + 12πx + 9π.
a. What is an expression for the radius of the circle?
b. What is the least possible integer value of x for the circle to exist? Explain.
Answers
Answer:B D
Step-by-step explanation:
I just got it right
can hispanics say the N-word? my answer is some hispanics can cause they could be mixed with black or the ancestors could've been black.. just wanna hear your opinions.
Answers
Answer:
it depends
Step-by-step explanation:
to be honest with you
Answer:
the Hispanics can and cant say the n word
Step-by-step explanation:
because the Hispanics might have black friends or can have their ancestors genetics for blacks and also their not the same color as the whites aka americans
John’s dog Fido is tied to a post in his backyard. Fido’s leash is 8.5 feet long.
Determine how much circular roaming area Fido has in the backyard to the nearest square foot.
(Use 3.14 to represent π)
Answers
51 ft.
multiply the pe.ipheral roaming space together
Use the Trapezoidal Rule with n = 4 to approximate
0.3523
0.7048
0.2456
0.4913
Answers
Answer:
0.7048
Step-by-step explanation:
∫₂⁴ 1 / (x − 1)² dx
n = 4, so we divide the interval into 4 regions. The width of the regions is:
(4 − 2) / 4 = 0.5
So the intervals are (2, 2.5), (2.5, 3), (3, 3.5) and (3.5, 4).
Evaluate f(x) at the ends of each interval.
f(2) = 1
f(2.5) = 4/9
f(3) = 1/4
f(3.5) = 4/25
f(4) = 1/9
Find the area of each trapezoid:
A₁ = ½ (2.5 − 2) (1 + 4/9) = 13/36
A₂ = ½ (3 − 2.5) (4/9 + 1/4) = 25/144
A₃ = ½ (3.5 − 3) (1/4 + 4/25) = 41/400
A₄ = ½ (4 − 3.5) (4/25 + 1/9) = 61/900
So the total approximate area is:
A = 0.705
Closest answer is 0.7048.
The value of expression is,
⇒ 0.7048
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
⇒ ∫₂⁴ 1 / (x − 1)² dx
Now, For n = 4, we divide the interval into 4 regions.
Hence, The width of the regions is:
= (4 − 2) / 4
= 0.5
Thus, the intervals are,
⇒ (2, 2.5), (2.5, 3), (3, 3.5) and (3.5, 4).
Thus, We can evaluate f(x) at the ends of each interval as,
f(2) = 1
f(2.5) = 4/9
f(3) = 1/4
f(3.5) = 4/25
f(4) = 1/9
Hence, the area of each trapezoid are,
A₁ = 1/2 (2.5 − 2) (1 + 4/9) = 13/36
A₂ = 1/2 (3 − 2.5) (4/9 + 1/4) = 25/144
A₃ = 1/2 (3.5 − 3) (1/4 + 4/25) = 41/400
A₄ = 1/2 (4 − 3.5) (4/25 + 1/9) = 61/900
Therefore, the total approximate area is:
A = A₁ + A₂ + A₃ + A₄
A = 0.7048
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-1/2y=1/2x+5 and y=2x+2
Answers
I assume this is the intersection of two lines, i.e. -1/2y is (-1/2)y. Please tell me if it's really -1/(2y).
(-1/2)y=(1/2)x+5
Multiplying both sides by -2
y = - x - 10
The other equation is
y = 2x + 2
We can equate them to find the meet
y = - x - 10 = 2x + 2
-3x = 12
x = -4
y = 2x + 2 = -6
Check: (-1/2)y=3, (1/2)x+5=3, equal, good
2x+2=2(-4)+2=-6=y, good
Answer: x=-4, y=-6
A soccer field is a rectangle 40 yards long and 30 yard wide. The coach asks the players to run from one corner to the other corner diagonally across. What is the distance?
Answers
Answer:
50 yards
Step-by-step explanation:pythogourus theorem apply here
a²+b²=c²
40²+30²=c²
c²=2500
c=√2500
c=50 yards
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Out of 5 brands of chocolates in a shop, a boy has to purchase the brand which is most liked by children. What measure of central tendency would be most appropriate if the data is provided to him?
Answers
Answer: Mode
Step-by-step explanation:
There are three main measures of central tendency: the mode, the median and the mean.
Since the boy has to purchase the brand which is most liked by children, he is using mode.
The mode is the most commonly occurring value in a distribution. That is, the value that occurs most frequently in a set of observations
Polygon v has an area of 1 square unit. Jun-seo drew a scaled version of polygon v using a scale factor of 7 and labeled it polygon w
Answers
Answer:
The area of Polygon
W
WW is
49
4949 square units.
Step-by-step explanation: dk
Scale factors are used to enlarge or reduce the size of a shape
The area of polygon w is 49 square units
The area of polygon v is given as:
[tex]v =1[/tex]
The scale factor of the sides of polygon v, that forms polygon w is given as:
[tex]k=7[/tex]
The area of polygon w is then calculated as:
[tex]w =v\times k^2[/tex]
So, we have:
[tex]w =1\times 7^2[/tex]
Evaluate the exponents
[tex]w =1\times 49[/tex]
Multiply 1 and 49
[tex]w =49[/tex]
Hence, the area of polygon w is 49 square units
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Whether ab is tangent to circle c at point b
Answers
Answer:
No
Step-by-step explanation:
If segment AB is tangent to the circle, then angle CBA will be a right angle, making triangle ABC a right triangle. If triangle ABC is a right triangle, it's sides will fit the Pythagorean theorem...
(leg)^2 + (leg)^2 = (hypotenuse)^2
Does 8^2 + 16^2 = 19^2 ?
64 + 256 does not equal 361!
Triangle ABC is NOT a right triangle, so segment AB is not tangent to the circle.
Please Help! ASAP! WIll give Brainliest
Figure A is a scale image of Figure B.
What is the value of x?
Answers
Answer:
x/2 = 12.5/5
5 · x = 12.5 · 2
5x = 25
5x / 5 = 25 / 5
x = 5
Step-by-step explanation:
What is 65,321 rounded to the nearest ten thousand?
Answers
Answer:
70,000
Step-by-step explanation:
5 always rounds UP to the nearest whole number, therefore, 70,000.
65321 rounded to nearest ten thousand's place becomes 70000.
How to round a number to ten thousands place ?An easy way of rounding numbers to ten thousand's place we'll understand by an example.
65321 have to rounded to ten thousand's place which is either 60000 or 70000.Here the given number is more closer to 70000 than 60000 so therefore 65321 rounded to the nearest ten thousand is 70000.
According to the given question
We have 65321 and we have to round it to the nearest ten thousand.
To round a number nearest to ten thousand first we'll check the digit of thousand's place which is 5 we'll add 1 to it make all the digits after that 0.
Now this becomes 66000.
Now we'll check for the digit in ten thousand's place which is 6 we'll add 1 to it and make the rest of the digits 0 hence it becomes 70000.
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a swimming pool has a length of 100 meters , a width of 25 meters and a depth of 4 meters throughout the whole pool. how much water can fill the pool ?
Answers
Answer:
10,000 m^3 of water can fill the pool.
Step-by-step explanation:
volume of a rectangular prism is length * width * height (depth)
100*25*4=2500*4=10,000
Therefore, 10,000 m^3 of water can fill the pool.
I hope this helped and have a good rest of your day!
Apples are on sale for $1.49 per pound. What is the price for 2 1/2 pounds of apples? Express your answer in decimal form, and round your answer to the nearest hundredth.
PLS I NEeD THIS TO PASS PLEASE Please awnser
Answers
Answer:
Step-by-step explanation:
Price of one pound of apples = $1.49
∴Price of 2 and 1/2 pound of apples = [tex]2\frac{1}{2}[/tex] × [tex]1.49[/tex]
= 2.5 × 1.49
= 3.725
= $ 3.73
Hope this helps!!
Please mark as Brainliest!!
Answer:
$3.73
Step-by-step explanation:
Urgent. Explain in words, how you would plot (0, 4) on a coordinate plane.
Answers
Answer:
in the ordered pair, (0,4), the zero represents the x number, meaning that you would not move in any direction on the x axis( it stays on the origin). the 4 means you will move 4 units up the y axis. in the end you will have one point that in 4 units up from the origin.
Step-by-step explanation:
Unit 5. 8) Please help. Which of the two-dimensional cross sections listed below could be created by cutting a cube with a plane?
Select all that apply.
Answers
Answer:
hexagonrectanglesquaretrianglepentagonStep-by-step explanation:
Only a straight line can be formed at the intersection of a plane with another plane. The faces of a cube are planes, so a 2-dimensional (planar) cross section of a cube cannot be a curve. It cannot be an ellipse or circle.
What polygons are possible?The intersection of a plane with a cube can be a polygon with 3, 4, 5, or 6 sides. That is, the 2-D cross section of a cube can be ...
triangle, rectangle, square, pentagon, hexagon
__
The attachment shows some possibilities.
Which of the following equations will yield the surface area of cylinder?
Answers
Answer: [tex]A=2\pi rh+2\pi r^2[/tex]
The guy on the top is rite. ☻♥
Raheem found a worm that was 9 centimeters long what is the length of the worm in in millimeters? Just answer the question in number form do not add millimeters when adding your answer
Answers
Answer:
90
Step-by-step explanation:
When converting from centimetres to millimetres you must multiply by ten. 9cm x 10 = 90mmGavyn can type 2200 words in 40 minutes.
Stephen can type 3850 in 70 minutes.
Richard can type 3000 words in 50 minutes.
Who types at the fastest rate of words per minute?
Answers
Answer:
Richard
Step-by-step explanation:
Gavyn: 55 wpm
Stephen: 55 wpm
Richard: 60 wpm
What is the number of years in which $560.00 will earn $112.00 at 4% per annum? *
Answers
Answer:
The answer is "5 years".
Step-by-step explanation:
[tex]S.I= \$ \ 112.00\\\\P= \$ \ 560.00\\\\R= 4 \%\\\\T=?\\\\\bold{Formula:}\\\\\bold{S.I= \frac{P \times R \times T}{100}}\\\\T= \frac{S.I \times 100}{P \times R}\\\\T= \frac{112\times 100}{560 \times 4}\\\\T= \frac{28\times 100}{560}\\\\T=\frac{100}{20}\\\\T=5 \ years\\[/tex]
what is the answer to
0.75x-0.5=x+1.5
Answers
Answer:
The result for the equation is [tex]x = -8[/tex] .
Step-by-step explanation:
-Solve the equation:
[tex]0.75x -0.5 =x +1.5[/tex]
-Subtract [tex]x[/tex] from [tex]0.75x[/tex] :
[tex]0.75x -0.5-x =x -x+1.5[/tex]
[tex]-0.25x -0.5 = 1.5[/tex]
-Add both sides by 0.5 :
[tex]-0.25x -0.5 +0.5 =1.5 +0.5[/tex]
[tex]-0.25x = 2[/tex]
-Divide both sides by 0.25 :
[tex]\frac{-0.25x}{-0.25} =\frac{2}{-0.25}[/tex]
[tex]x = -8[/tex]
So, the answer for the equation is [tex]x = -8[/tex] .
expand the linear expression 6(7m+2)
Answers
Answer:
42m +12
Step-by-step explanation:
6(7m+2)
Distribute
6*7m +6*2
42m +12
Answer:
42m+12
Step-by-step explanation:
n circle V, r = 14ft.
What is the area of circle V?
a
49π square feet
b
196π square feet
c
14π square feet
d
28π square feet
Answers
Answer:
196 pi, otherwise known as choice b
Step-by-step explanation:
14^2*pi
Answer:
b
Step-by-step explanation:
The formula for the area of a circle is [tex]\pi r^2[/tex]. Plugging in the radius that you are given, you get [tex]\pi \cdot 14^2=196\pi[/tex], or answer choice b. Hope this helps!
