Answer:Students could also work backwards from 76 toothpicks to find the number of hexagons in a row. 6% could subtract out the first hexagon (76-6) and divide the remainder by 5 (70/5=14), but they forgot to add back on the original hexagon to get 15.
Step-by-step explanation:
The cost of two books is ₹126.If the cost of one book is twice the other, the find the cost of books.
please factor x^3+2x^2-x-2=(x+ )(x+ )(x+ )
Answer:
(x+2) (x+1) (x-1)
Step-by-step explanation:
You would add and subtract the second term to the expression
Factor x3+2x2−x−2
x3+2x2−x−2
=(x+2)(x+1)(x−1)
ILL MARK BRAINLEST JUST PLS HELP MEEE
Answer:
Option C. 154 cm²
Step-by-step explanation:
From the question given above, the following data were obtained:
Pi (π) = 22/7
Diameter (d) = 14 cm
Area (A) =?
Next, we shall determine the radius of the circle. This can be obtained as follow:
Diameter (d) = 14 cm
Radius (r) =?
r = d/2
r = 14/2
r = 7 cm
Finally, we shall determine the area of the circle as illustrated below:
Pi (π) = 22/7
Radius (r) = 7 cm
Area (A) =?
The area of a circle can be obtained by using the following formula:
A = πr²
A = 22/7 × 7²
A = 22/7 × 7 × 7
A = 22 × 7
A = 154 cm²
Thus, the area of the circle is 154 cm²
Answer:
area of circle=π(14/2)²=22/7 ×7²=22×7=154cm²
On math benchmark need help
Answer:
a
Step-by-step explanation:
a
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2. Write an equation in slope intercept form with the given Information Goes through points (1, 8) and (5, 0)
Answer:
[tex]y = -2x + 10[/tex]
Step-by-step explanation:
Slope: [tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]
Slope-Intercept Form: [tex]y=mx+b[/tex]
[tex]m=\frac{8-0}{1-5}[/tex]
[tex]m = -2[/tex]
[tex]y = -2x + b[/tex]
[tex]0 = -2 (5)+b[/tex]
[tex]0=(-10)+b[/tex]
[tex]b = 10[/tex]
[tex]y = -2x + 10[/tex]
Find y if y = -7x -23 and x = 10
Answer:
y=-93
Step-by-step explanation:
You just substitute 10 for x
y=-7(10)-23
y=-70-23
y=-93
PLEASE HELP FAST!!
8. Find the unknown side of the triangle below. Show your work. 17 in 8 in X
Answer:
the unknown side of triangle is 15 in :)
Carter stated that 5(x + 9) - 3x is the same as 2x + 45. Lori disagreed with him and said that an equivalent expression is 2x + 9. Who was right?
Answer:
Carter;
5 ( x + 9 ) - 3x = 2x + 45
Step-by-step explanation:
Simplify the equation;
5 ( x + 9 ) - 3x
Distribute the 5, remember, you have to distribute 5 over both terms.
5x + 45 - 3x
Combine like terms;
2x + 45
2x + y = -2
x + y = 5
Answer:
x= -7, y= 12
Step-by-step explanation:
To find the value of x and y, first label the 2 equations.
2x +y= -2 -----(1)
x +y= 5 -----(2)
(1) -(2):
2x +y -(x +y)= -2 -5
2x +y -x -y= -7 (expand bracket)
x= -7
subst. x= -7 into (2):
-7 +y= 5
y= 5 +7 (+7 on both sides)
y= 12
What is the value of x?
Enter your answer in the box.
X =
Answer:
x = 20
Step-by-step explanation:
Since the two angles are vertical, they are equal.
That means
3x + 50 = 6x - 10
60 = 3x
20 = x
Answer:
[tex]x=20[/tex]
Step-by-step explanation:
[tex]We\ know\ that,\\"When\ two\ lines\ intersect\ the\ pair\ of\ Vertically\ Opposite\ Angles\\ are\ always\ equal"\\Here,\\As\ the\ lines\ intersect\ each\ other,\ the\ angle\\ measuring\ (3x+50)\ and the\ angle\ measuring\ (6x-10)\ are\ equal.\\Hence,\\3x+50=6x-10\\3x-6x=-10-50\\-3x=-60\\x=\frac{-60}{-3}\\x=20[/tex]
If y varies directly with x, find the missing value below.
(2, -34) and (x, 85)
Answer:
X= -5
Step-by-step explanation:
y varies directly with x,
so y=kx
-34=k×2
k= -17
85= -17× X
X= -5
15x18x47x9 I don't understand multiplication pls help!
Answer:
the answer is 114,210..................
Solve for t : t3 + 4 =-4
Help question in the picture
Answer:
thank you for the points :D
Step-by-step explanation:
The position of an open water swimmer is shown in the graph. The shortest route to the shoreline is one that is perpendicular to the shoreline Write an equation that represents this path
Please help!
Answer:
y = 1/2x + 4 1/2
Step-by-step explanation:
I really extremely need help! I will give you 5 stars and branilest
Max weighs 26 pounds. The grinch made Max load the sleigh with very heavy bags. The bags weighed 250% of Max´s weight. How heavy were the bags?
Answer:
Max is 26 pounds.
We know the bags are 250% of 26.
26(2.50) = 65
The bags are 65 pounds.
12x+4=2(5x+8)
ls solve for x
Answer:
i believe the answer is x=6
Step-by-step explanation:
12x + 4 = 2(5x + 8)
12x + 4 = 10x + 16
12x - 10x = 16 - 4
2x = 12
2x/2=12/2
x=6
Solve for x using the vertical angles below:
(2 + 3x)
62
Answer:
20
Step-by-step explanation:
Solving for x using the vertical angles we get , the value of x is: x = 20.
Here, we have,
from the given figure we get,
angle (2 + 3x) and angle62 are opposite angles.
we know that,
When two lines intersect each other, then the opposite angles, formed due to intersection are called vertical angles or vertically opposite angles. A pair of vertically opposite angles are always equal to each other.
so, we have,
angle (2 + 3x) = angle62
(2 + 3x) = 62
or, 3x = 60
or, x = 20
Hence, Solving for x using the vertical angles we get , the value of x is: x = 20.
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What is the value of x knowing that the interior angle of this regular polygon is (-134x+516+2x)?
Based on the calculations, the value of x for this regular polygon with the given interior angle is equal to 3.
What is a polygon?A polygon can be defined as a two-dimensional geometric shape that comprises straight line segments and a finite number of sides. Also, some examples of a polygon include the following:
TriangleQuadrilateralPentagonHexagonNonagonOctagonNote: The number of sides (n) of a hexagon is 6.
In Geometry, the sum of the interior angles of both a regular and irregular polygon is given by this formula:
Sum of interior angles = 180 × (n - 2)
Sum of interior angles = 180 × (6 - 2)
Sum of interior angles = 180 × 4
Sum of interior angles = 720°.
Next, we would determine the value of x by using this formula:
Interior angle × Number of sides = Sum of interior angles
Substituting the parameters into the formula, we have;
(-134x + 516 + 2x) × 6 = 720
-134x + 516 + 2x = 720/6
-134x + 516 + 2x = 120
516 - 120 = 134x - 2x
396 = 132x
x = 396/132
x = 3.
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haaaaallllllppppppp my brains fried atm
PLEASE HELP DUE IN 30 MINUTES
Answer:
y= 1/2x-2
Step-by-step explanation:
126x52 what is it I don’t know
Answer:
6552
Step-by-step explanation:
P.S Can I have brainliest?
Answer:
6,552
Step-by-step explanation:
state the size of angle OAB, giving a reason for your answer
Answer:
OAB is 90°
Explanation -
Given - A circle with centre O
According to the theorem , The tangent of a circle and the line of tangency make an angle of 90°
28 members;50% increase
Answer:
I think the answer is 42.
Step-by-step explanation:
If there is a 50% increase in members then the number of members would go up 14. Adding 14 to 28, you come away with 42.
Sorry if it's wrong.
There were a total of 209 basketball games in the season the season played is for 19 months how many basketball games were played each month if each month has the same number of games?
Answer:
11
Step-by-step explanation:
divide 209 by 19 to get an equal number of games each month (for 19 months), you will get 11 games each month.
Answer:11
Step-by-step explanation:Because 209 divided by 19
some one please help me with these questions I’m struggling :(
Answer: 6) 15 1/10
Step-by-step explanation:
Add the whole numbers and then find a common number for the bottom fraction. So that'd be ten. To get to ten from 2 you'd multiply by five then multiply the top number by five too. That gets you 5/10 and do the same for the other fraction. Get the bottom number to ten then whatever you multiply by do the same to the top. After doing that putting the fractions together which gets you 11/10. That'd make 1 1/10 so that makes it 15 instead of 14 whole
Answer:
answer is 15 1/10 or 151/10
Dave is hanging dry wall in a house with square rooms. He completes on average 2/ 3 of a wall in 1/2 of an hour. What is Dave's rate of completion expressed in walls per hour?
A. 1 /3
B. 3 /4
C. 1 1/6
D. 1 1/3
Dave's rate of completion is 4/3 walls per hour and this can be determined by using the concept of unit rate.
Given :
Dave is hanging dry wall in a house with square rooms. He completes on average 2/ 3 of a wall in 1/2 of an hour.The following steps can be used in order to determine Dave's rate of completion:
Step 1 - The concept of unit rate can be used in order to determine Dave's rate of completion.
Step 2 - According to the given data, Dave completes on average 2/3 of a wall in 1/2 of an hour.
Step 3 - Now, let Dave's rate of completion be 'x'.
Step 4 - So, the value of 'x' can be calculated as:
[tex]x = \dfrac{\dfrac{2}{3}}{\dfrac{1}{2}}[/tex]
Step 5 - Simplify the above expression.
[tex]x = \dfrac{2}{3}\times\dfrac{2}{1}[/tex]
[tex]\rm x = \dfrac{4}{3}\;walls \;per \;hour[/tex]
Therefore, Dave's rate of completion is 4/3 walls per hour.
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Element X is a radioactive isotope such that its mass decreases by 81% every year. If an experiment starts out with 490 grams of Element X, write a function to represent the mass of the sample after tt years, where the daily rate of change can be found from a constant in the function. Round all coefficients in the function to four decimal places. Also, determine the percentage rate of change per day, to the nearest hundredth of a percent.
Answer:
We can say we start with 490 grams and after 1 year we have (490 * .81 grams) or 396.9 grams.
We can solve for half-life by this equation:
Half life = (time * log 2) / log (beginning amount / ending amount)
Half-life = (1 year * 0.30102999566) / log (490 / 396.9)
Half life = (1 year * 0.30102999566) / log (1.2345679012 )
Half life = (0.30102999566) / 0.091514981109
Half-Life = 3.2894067399 years
Well, that's a start.
Step-by-step explanation:
The half life of the given radioactive isotope will be 3.2894067399 years.
What is Half life period?
The amount of time it takes to disintegrate by half an initial amount. For a given reaction, a reactant's half-life t-1/2 is the time it takes for its concentration to reach a value which is the arithmetic mean of its initial and final value.
Here, Element X starts with 490 grams
After 1 year we have (490 X 0.81 grams) or 396.9 grams
Now, We can solve for half-life by this equation:
Half life = (time X log 2) / log (beginning amount / ending amount)
Half-life = (1 year X 0.30102999566) / log (490 / 396.9)
Half life = (1 year X 0.30102999566) / log (1.2345679012 )
Half life = (0.30102999566) / 0.091514981109
Half-Life = 3.2894067399 years
Thus, the half life of the given radioactive isotope will be 3.2894067399 years.
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can someone plz help me with this question: select the correct answer. what is √125 in simplest form?
Answer: First Option (5√5)
Answer:
First, you see if there are any perfect squares that are a factor of 125. If you do find some, find what is seemingly the biggest. In this case, it is 25, I think. So you can then out it as root(25×5), I think. As 25 is a perfect square, you can square and then put the number you get on the outside. So since 5×5=25, it becomes 5(root)5, which essentially means 5×(root)5, I think.