Answer:
True.
Step-by-step explanation:
find the soluations to (x+3)^2=49
Answer:
x = 4 , − 10
Step-by-step explanation:
For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?
Answer:
72 kg
Step-by-step explanation:
For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?
We are given the ratio
cement: sand:stones
= 1:2:4
The sum of proportion =
1 + 2 + 4 = 7
We are given the kg of sand = 144kg
Step 1
We find the total kg of cement, sand and stones = x
Using the proportion of sand,
2/7 of x = 144kg
2/7 × x = 144kg
2x/7 = 144kg
Cross Multiply
2x = 7 × 144kg
x = 7 × 144kg/2
x = 504kg
Therefore the total kg of cement, sand and stone = 504kg
Step 2
The amount of cement required is calculated as:
1/7 × 504 kg = 72 kg
Therefore, 72kg of cement is required.
15.
Suppose that y varies inversely with x. Write an equation for the inverse variation.
y = 2 when x = 5
A. y = 3x
B. y = [tex]\frac{10}{x}[/tex]
C. x = [tex]\frac{y}{3}[/tex]
D. y = [tex]\frac{x}{10}[/tex]
Answer:
y=10/x
Step-by-step explanation:
Y=k/x
Y=2 & x=5 implies k=10
Hence, y=10/x is the desired equation of the hyperbola
...................................................................................................................................................
Answer:
The equation is and y = 2 , x = 5 the value of k is 10 .
Step-by-step explanation:
As given
y varies inversely with x.
Where k is the constant of proportionality .
Thus the equation for the inverse variation .
As given
y = 2 when x = 5
Put all the values in the equation .
k = 2 × 5
k = 10
Thus the constant of variation is 10 .
Therefore the equation is and when y = 2 , x = 5 value of k is 10 .
...............................................................................................................................................
y
=
10
x
Explanation:
y
varies inversely with
x
⇒
y
∝
1
x
∴
y
=
k
x
y
=
2
,
x
=
5
gives
2
=
k
5
⇒
k
=
2
×
5
=
10
y
=
10
x
Answer link
...............................................................................................................................................
Y varies inversely with x means, y=k\x where x is the constant of variation saying that 2=k\5 and gives k=10 y=10\x would be the equation for any x
...............................................................................................................................................
The answer is y=10/x
Complete the sentence below.
The amplitude of the graphs of the sine and cosine functions is __
and the period of each is
__
The amplitude of the graphs of the sine and cosine functions is the vertical distance between the sinusoidal axis and the maximum or minimum value of the function.
And the period of each is the distance between two peaks of the graph, or the distance it takes for the entire graph to repeat.
The amplitude of each of the graphs of the sine and cosine functions is 1
The period of each of the graphs of the sine and cosine functions is 2π.
By definition, the amplitude of the graphs of the sine and cosine functions is defined as the vertical distance between the x - axis which is also called the sinusoidal axis and the peak value which is the maximum or minimum points located on the graph curve function. The basic graphs of sine and cosine function are the same and they have an amplitude equal to 1. By definition, the period of the graphs of the sine and cosine functions is defined as the the distance between two peaks of the graph or the period for which the graph repeats. In this case the time period is always 2π.Read more at; https://brainly.com/question/3919296
For this parallelogram (a) choose the best name and then (b) find the value of x and y.
Answer:
rhombus
3x - 4 = 17
3x = 21
x = 7
there is no y
Determine the mean, median, mode, and range for the data set below:
5,6,8,6,5
Answer:
Mean = 6
Median = 6
Mode = 5 and 6
Step-by-step explanation:
Mean - Add all numbers together then subtract from how many numbers are there.
Median - Arrange your numbers in numerical order. Then count how many numbers you have. After that you pick the number in the middle.
Mode - This question has a two modes because there are two number that both appear the same amount of time.
what is the area of this quadrilateral
Answer:
The area of it is 52 square feet
In the circle below, UW is a diameter. Suppose m VW = 132º and mWVX=21°. Find the following
Answer:
sooooooooooooooo
Step-by-step explanation:
um
Help appreciated:)
I will give brainliest
Answer:
2
Step-by-step explanation:
There are two crosses before 1 1/2 on the graph :)
What is the product of the expression? -7(-3)
Answer:
-21 is the correct answer . Hope you like my answer.
Help find the mean ,median,mode to 12,9,15,19,20,15
Answer:
Mean = 16
Median = 15
Mode = 15
Step-by-step explanation:
Mean - Add all numbers together then subtract from how many numbers are there.
Median - Arrange your numbers in numerical order. Then count how many numbers you have. If you have an odd number, divide by 2 and round up to get the position of the median number. If you have an even number, divide by 2. Go to the number in that position and average it with the number in the next higher position to get the median.
Mode - This question has one mode because there is only one number that occurs more that the rest.
for brainiest:):):):):):):):)
Answer:
A. No
B. No
C. Yes
Step-by-step explanation:
A and B are either below or above 180 degrees when all angles degrees are added together
C is exactly 180 degrees when all angles degrees are added together
Answer:
A. No
B. No
C. Yes
Step-by-step explanation:
A is no because the triangles do not follow the Triangle Inequality Theorem, nor do the angles add up to 180°. The Triangle Inequality Theorem states that the sum of two angles must be larger than the third side.
100 + 40 + 20 = 160° (DO NOT ADD UP TO 180°)
40 + 20 = 60 (60 IS NOT GREATER THAN THE THIRD SIDE, WHICH IS 100).
B is no because the triangle does not follow the Triangle Inequality Theorem, nor do the angles add up to 180°.
20 + 80 + 100 = 200° (DOES NOT ADD UP TO 180°)
20 + 80 = 100 (100° IS NOT GREATER THAN THE THIRD SIDE, WHICH IS 100.)
C is yes because the triangle follows the Triangle Inequality Theorem and the angles add up to 180°.
50 + 60 + 70 = 180°.
60 + 70 = 130 (130 IS GREATER THAN 50).
70 + 50 = 120 (120 IS GREATER THAN 60).
Find the area of the circle. Use 3.14 or 22/7 for pi. Round your answer to the nearest hundredth, if necessary.
Find the surface area and leave your answer in terms of TT=pi
14 mm
29 mm
a
ОООО
800 pi
1357pi
1147 pi
1204 pi
Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
9514 1404 393
Answer:
9n^4
Step-by-step explanation:
The divisor and quotient can be interchanged to find the divisor:
[tex]\dfrac{18n^6+27n^5-36n^4}{2n^2+3n-4}=\boxed{\text{Blank 1}}[/tex]
Such division is carried out by first finding the quotient of the highest-degree terms:
[tex]\dfrac{18n^6}{2n^2}=\dfrac{18}{2}n^{6-2}=9n^4[/tex]
This value is used to multiply the denominator and subtract that product from the numerator to find the new numerator. The new numerator is zero, so the value that goes in Blank 1 is ...
9n^4
_____
The attachment shows the long division.
Kyle is going to the County Fair with his friends. It
costs $8 to get into the fair and then $2 for each
ride ticket. If Kyle spent $28 total, how many ride
tickets did he buy?
9514 1404 393
Answer:
10
Step-by-step explanation:
After spending $8, Kyle had $20 left to buy $2 ride tickets. He could buy ...
$20/$2 = 10 . . . tickets
__
An equation for the total Kyle spent is ...
total spent = (entry fee) + (ride cost) × (number of rides)
28 = 8 + 2n . . . . fill in the known values
20 = 2n . . . . . . . subtract 8
10 = n . . . . . . . . . divide by 2
Kyle bought 10 ride tickets.
Find the area of the sector.
Answer:
11.8
Step-by-step explanation:
The area of a sector is central angle/360 x [tex]\pi[/tex][tex]r^{2}[/tex].
Thus, the central angle is 150, while the r=3
So, [tex]\frac{150}{360}[/tex] ×[tex]3^{2}\pi[/tex]=[tex]\frac{15}{4} \pi[/tex] , which is also 11.78097245 or 11.8
What is the 18th term for the following sequence?
-3, 1, 5, 9, 13,
Answer: The Answer is 72
Step-by-step explanation:
It is quite easy if you think about it.
first you must find the rule and the pattern.
Once you find that just multiply 18 by how much of a difference there is.
The difference is 4. You must add 4.
Laura makes 8 dollars for each hour of work. Write an equation to represent her total pay p after working h hours.
Answer:
8h=p
Step-by-step explanation:
Answer:
8h = p
or
p = 8h (this is how i wrote it and it was right)
Step-by-step explanation:
Evaluate the expression below for x = 4 6 (x +7)
Answer:
D. 66
Step-by-step explanation:
6×(4+7)
6×11
=66
Find the surface area of the triangular prism shown below. 10 10 8 14 12
Answer:
Hello! answer: 544
Hope this helps!
The surface area of the given triangular prism is 544 units³
What is a triangular prism?A triangular prism is a polyhedron made up of two triangular bases and three rectangular sides.
Given that are the dimensions of a triangular prism, we are asked to find its surface area,
Surface area = (perimeter × length)+(base area)
Surface area = [(10+10+12)×14]+(8×12)
= 32×14+96
= 448+96
= 544
Hence, the surface area of the given triangular prism is 544 units³
Learn more about triangular prism, click;
https://brainly.com/question/27102803
#SPJ2
-8b-11w+10 simplify this has been a hard problem for me
Answer:
-8b-11w+10
Step-by-step explanation:
The first term has a variable b
The second term has a variable w
The third term is a constant
They cannot be combined
What is the value of 3x +2 when x = 5
Answer:
17
Step-by-step explanation:
Always put questions like these with an equal sign
3x + 2 = ?
plug in x value (x = 5)
3(5) + 2 = ?
solve
15 + 2 = ?
answer
17 = ?
Step-by-step explanation:
hope it helps you have a nice dayRandall has a box that measures 12 inches × 9 inches × 8 inches. If Randy wants to cover the box with aluminum foil, how much foil will it take to cover the entire outside of the box?
Answer:
[tex]A=552\ inches^2[/tex]
Step-by-step explanation:
The dimensions of a box measures 12 inches × 9 inches × 8 inches.
We need to find the area of the aluminium required to cover the entire outside of the box.
We know that the surface area of the cuboidal box is given by :
[tex]A=2(lb+bh+bl)\\\\=2(12\times 9+9\times 8+8\times 12)\\\\=2\times 276\\\\=552\ inches^2[/tex]
So, the required area of the foil is equal to [tex]552\ inches^2[/tex].
what expression is this?
Answer:
the 3rd choice po
ang sagot po
A merchant bought 12 boxes of eggs containing 10 eggs each at the rate of rs 50 per box.He spent rs 40 on transportation.He sold the eggs at rs 12 per pair.Calculate his gain or loss%.
Given:
A merchant bought 12 boxes of eggs containing 10 eggs each at the rate of Rs 50 per box.
He spent Rs 40 on transportation.
He sold the eggs at rs 12 per pair.
To find:
The gain or loss percentage.
Solution:
The cost of 1 box of eggs is Rs. 50. So, the cost of 12 boxes of eggs is:
[tex]12\times 50=600[/tex]
Number of eggs in 12 boxes is:
[tex]12\times 10=120[/tex]
He spent Rs 40 on transportation. So, total cost of 12 boxes of eggs is:
[tex]600+40=640[/tex]
Cost of each egg is:
[tex]\dfrac{640}{120}=\dfrac{16}{3}[/tex]
He sold the eggs at Rs 12 per pair. It means the selling price of two eggs is Rs 12. So, the selling price of each egg is:
[tex]\dfrac{12}{2}=6[/tex]
We need to find the gain or loss percentage.
Since [tex]\dfrac{16}{3}<6[/tex] it means the selling price is greater than the cost price, therefore it is gain.
The gain percent is:
[tex]Gain\%=\dfrac{S.P.-C.P.}{C.P.}\times 100[/tex]
[tex]Gain\%=\dfrac{6-\dfrac{16}{3}}{\dfrac{16}{3}}\times 100[/tex]
[tex]Gain\%=\dfrac{\dfrac{18-16}{3}}{\dfrac{16}{3}}\times 100[/tex]
[tex]Gain\%=\dfrac{2}{16}\times 100[/tex]
[tex]Gain\%=12.5\%[/tex]
Therefore, the gain percent is 12.5%.
What is the volume of the rectangular prism?
A : 17 1/4
B : 18 3/4
C : 27 1/4
D : 159 3/8
HURRY I AM ON A TIMED TEST
Answer:
D
Step-by-step explanation:I hope this helps
The difference between 25 and a number is at least 13.
Answer:
x ≤ 12
Step-by-step explanation:
The problem can be represented by the equation:
25 - x = y and y ≥ 13
So, we find that 25 - 12 = 13, which means that any number greater than 12 would result in a difference lower than 13. This sets 12 as the maximum.
what is the x-intercept of
4x-y=-5
Answer:
(-5/4,0)
Step-by-step explanation:
what is the value of (5+3) 2?
Answer:
(5+3) times 2 then that would be 16
Step-by-step explanation:
You are just multiplying everything inside of the Parentheses after you add them together.
Here is an easy way to remember the order of operation:
PEMDAS
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Hope that helps