Answer:
a
Step-by-step explanation:
Volume = πr2h
= π×3.52×5
= 61.25π
= 192.42255003237 centimeters3
and
Volume = 7×5×12 = 420 feet3
so,
192.4+420= 612.4 cm^3
Solve for x in the image below.
Aida bought a flower rug for her bedroom, as shown below.
Note: Figure is not drawn to scale
If a = 12 in, which of the following is closest to the area of the rug?
A.
298.08 in2
B.
257.04 in2
C.
334.08 in2
D.
370.08 in2
Guys guys GUYS guys guYs HELPhelp helppp
Answer:
A is 3 x 3 = 9 so thats one multiple and the ones that have the same put in the middle
Step-by-step explanation:
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
mode = 1
Step-by-step explanation:
the mode is the value that occurs most often in the data set.
1 occurs 3 times and is therefore the mode
A plane flies the 1580 km from Cairo to Khartoum.
It departs from Cairo at 1155 and arrives in Khartoum at 1403.
Calculate the average speed of the plane, in kilometres per hour.
speed= distance/ time
= 1580/32/15
=1580/32 ×15
=740.625 km/hrs
time taken by plane:11:55 - 12:00= 5mins
12:00 - 14:03= 2hrs 3mins
total time:
=5 mins + 2hrs 3 mins
= 2hrs 8 mins
= ( 2 + 8/60) hrs
= 2 + 2/15
= 32/15 hrs
Someone help me please
Solve the system of equations. 3 x + 4 y = − 23 x = 3 y + 1 3x+4y=−23 x=3y+1
x=
Answer:
x=−5
y=−2
Step-by-step explanation:
{3x+4y=-23}{x=3y+1}
x=−5
y=−2
Please Help Fast!!!
Solve the system of equations:
25−x=−4y
3x−2y=30
Answer:
{x,y} = {7,-9/2}
Step-by-step explanation:
System of Linear Equations entered :
[1] 25-x=-4y
[2] 3x-2y=30
Equations Simplified or Rearranged :
[1] -x + 4y = -25
[2] 3x - 2y = 30
Graphic Representation of the Equations :
4y - x = -25 -2y + 3x = 30
Solve by Substitution :
// Solve equation [1] for the variable x
[1] x = 4y + 25
// Plug this in for variable x in equation [2]
[2] 3•(4y+25) - 2y = 30
[2] 10y = -45
// Solve equation [2] for the variable y
[2] 10y = - 45
[2] y = - 9/2
// By now we know this much :
x = 4y+25
y = -9/2
// Use the y value to solve for x
x = 4(-9/2)+25 = 7
Solution :
{x,y} = {7,-9/2}
Answer:
x=7, y=-4.5 or (7, -4.5)
Step-by-step explanation:
Hi there!
We are given the following system of equations:
25-x=-4y
3x-2y=30
Before we do anything, let's move our x and y values to one side, while keeping the numbers on the other side
So for 25-x=-4y, start by adding 4y to both sides
25-x=-4y
+4y +4y
_____________
25 + 4y - x = 0
Now subtract 25 from both sides
4y - x = -25
Now the system is this:
4y-x=-25
3x-2y=30
We can solve this equation by substitution, where we solve one of the equations for one of the variables, and then use the expression that the variable is equal to, in order to find the value of the other variable. Then, once the value of that variable is found, use that value to find the value of the first variable.
Start with 4y-x=-25
Subtract 4y from both sides
-x=-4y-25
Now multiply both sides by -1
x=4y+25
Substitute 4y+25 as x in 3x-2y=30
3(4y+25)-2y=30
Multiply
12y+75-2y=30
Simplify
10y+75=30
Subtract 75 from both sides
10y=-45
Divide both sides by 10
y = -4.5
Now substitute -4.5 as y in x=4y+25
x=4(-4.5)+25
Subtract
x= -18 +25
x= 7
The answer is x=7, y=-4.5. As a point, it's (7, -4.5)
Hope this helps!
See more on solving systems of equation here: https://brainly.com/question/24420448
HELPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
See below ↓↓
Step-by-step explanation:
(a) Most variability
Refers to the class with the biggest range⇒ Class D(b) Highest scores on average
Refers to the class with the highest mean score⇒ Class CWhich expression is equivalent to 4+w+12w
Answer:
13w+4 or 4+13w
Step-by-step explanation:
w is the same as one then it will be 4+w(1)+12w =12w+w(1)=13w
4 over here does not have friend therefore it renains to be 4 =13w+ 4
Marco picked 8 1/2
pounds of apples at an orchard last weekend. He used 1/2
of the apples to make a pie for a party. Then, he used 3 1/8
pounds of apples to make applesauce. How many pounds of apples does Marco have left?
Answer: 4 [tex]\frac{7}{8}[/tex] pounds of apples
Step-by-step explanation:
We will subtract the apples used from the original pounds of apples to solve this question. First, I will turn all units into eighths to subtract.
8 1/2 -> 8 4/8
1/2 -> 4/8
3 1/8 -> 3 1/8
Next, I will subtract and simplify as I go.
8 4/8 - 4/8 - 3 1/8
8 - 3 1/8
8 - 3 = 5, 5 - 1/8 = 4 7/8
Marco has 4 7/8 pounds of apples left.
20
у
x
120
What is the answer?
Step-by-step explanation:
120° + 20° + x = 180° ( sum of interior angle. of triangle is 180°)
140° + x = 180°
x = 180° - 140°
x = 40°
Now
y + x = 180° ( supplementary angle)
y + 40° = 180°
y = 180° - 40°
y = 140°
The angle measure of y is 140°.
What is an angle measure?When two lines or rays intersect at a single point, an angle is created. The vertex is the term for the shared point. An angle measure in geometry is the length of the angle created by two rays or arms meeting at a common vertex.
Given:
The three angles of a triangle are 120°, 20° and x.
And we know,
the sum of the interior angle of the triangle is 180°.
120° + 20° + x = 180°
140° + x = 180°
x = 180° - 140°
angle measure of x = 40°
Now:
Here, x and y are supplementary angles.
Supplementary angles are two angles whose measures add up to 180°
y + x = 180°
y + 40° = 180°
y = 180° - 40°
y = 140°
Therefore, the value of y is 140°.
To learn more about the angle measure;
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Use the triangle to evaluate each function. sin(a) = tan(a) = sec(a) =
The value of the given function is as follows sin a = 3/5, cos a =4/5 and sec a = 5/4.
How do we find the sin, tan, and sec function?By right-angled triangle, we can find the trigonometric function from the sides of the triangle.
sin x = perpendicular/ hypotenuse
cos x = base/ hypotenuse
sec x = hypotenuse /base
From a triangle ABC of base 4, perpendicular 3, and hypotenuse 5, we get
sin a = perpendicular/ hypotenuse
= 3/5
cos a = base/ hypotenuse
= 4/5
sec a = hypotenuse /base
= 5/4
Hence, the value of the given function is as follows sin a = 3/5, cos a =4/5 and sec a = 5/4.
Learn more about trigonometry;
https://brainly.com/question/26719838
Select the expression that is equal to 3(7+x)
13x
21+4x
21+3x
10+3x
10+4x
I don't know
Answer:
21 + 3x
Step-by-step explanation:
3(7 + x) ← multiply each term in the parenthesis by 3
= 21 + 3x
Alex is playing a game
where he gets 8 points
8
every time his ball hits the
target. He gets an extra 8
points every time his ball
hits the target 8 times in a
row. How many points will
Brady receive if he hits the
target 8 times in a row?
Answer:
72 points
Something important to note is that 8 is the constant,If you can get 8 each time that would be the same as doing 8+8+8...
If he hits it 8 times in a row, that means the constant was being multiplied 8 times, 8+8+8+8+8+8+8+8=64The problem also states that if he hits it 8 times in a row you add 8 more points.
64+8=72
Therefore, the answer is 72There are 72 points Brady receive if he hits the target 8 times in a row.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
Alex is playing a game where he gets 8 points 8 every time his ball hits the target.
And, He gets an extra 8 points every time his ball hits the target 8 times in a row.
Hence, Number of points Brady receive if he hits the target 8 times in a row is,
⇒ 8 x 8 + 8
⇒ 64 + 8
⇒ 72
Thus, There are 72 points Brady receive if he hits the target 8 times in a row.
Learn more about the multiplication visit:
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Its easy pls help{6x+4y=14}{9x+6y=c}which value of c represents a system with infinitely many solutions?
The system of equations 6x+4y=14 and 9x+6y=c are linear equations
The value of c that makes the system have infinitely many solutions is 21
How to determine the value of c?The system of equations are given as:
6x+4y=14
9x+6y=c
Divide through the second equation by 3
3x + 2y = c/3
Multiply through by 2
6x + 4y = 2c/3
Subtract the first equation from the above equation
6x - 6x + 4y - 4y = 2c/3 - 14
Evaluate the differences
2c/3 - 14 = 0
Add 14 to both sides
2c/3 = 14
Multiply by 3/2
c = 21
Hence, the value of c that makes the system have infinitely many solutions is 21
Read more about system of equations at:
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i need help will give points no scam just please give me the answers and we will both be on our way please no scamming cause its annoying also this is eighth grade math work
Answer:
BAStep-by-step explanation:
What is the approximate surface area of the figure? Use 3.14 for pi. 65.72 cm² 113.04 cm² 37.68 cm² 75.36 cm²
113.04 cm²
==========
The figure given is a sphere with a radius of 3 cm
formula for surface area of sphere : 4πr²
Solve:
⇒ 4πr²
⇒ 4(3.14)(3)²
⇒ 113.04 cm²
113.04 cm²
Solving it:
The SA given is 4πr²
To get your answer
First, you multiply these
4πr²
Add/ Plug-in the radius:
4(3.14)(3)²
And this is your answer:
113.04 cm²
I have attached an image showing this is the correct answer!
I don’t understand what to do and I’m having trouble with working it.
Answer:
y=112
Step-by-step explanation:
If x=3.5 and y=14, you would divide 28 by 3.5 to get 8. Since x and y are directly proportional, you would times 14 by 8 to get y=112.
what does 7 of one third + 2 and two thirds =
Huy borrowed $4500 from a bank at a rate of 5% per year compound interest. He paid back the money and interest at the end of 2 years.
How much interest did he pay?
Answer:
Step-by-step explanation:
FV = PV ( 1 + i)^n i = decimal interest per period(year) n = periods(years)
FV = future value PV = present value (deposit or loan amount)
FV = 4500 ( 1 + .05)^2
FV = 4500(1.05)^2 = 4961.25 subtract the orginal deposit which means 461.25 interest paid at 2 yrs
A coconut falls from the top of a tree and reaches a velocity of 19.6 m/s when it hits the ground. it takes two seconds to reach the ground. what is the coconuts acceleration?
Using the velocity formula, it is found that the acceleration is of a = 9.8 m/s².
What is the velocity formula?It is given by the initial velocity plus acceleration multiplied by time, that is:
v(t) = v0 + at.
In this problem, we have that v(0) = 0, t = 2, v(2) = 19.6, hence:
v(t) = v0 + at.
19.6 = 0 + 2a.
2a = 19.6.
a = 19.6/2.
a = 9.8 m/s².
The acceleration is of a = 9.8 m/s².
More can be learned about the velocity formula at https://brainly.com/question/26408808
Will give 20 points for who answer!
Answer:
Equation: y + 1 = -2(x - 0) OR y + 3 = -2(x - 1)
Slope: -2
Y-intercept: (0, -1)
Step-by-step explanation:
First, create an equation in point-slope form using ONE point. Using (0,-1):
y - y1 = m(x - x1)
y + 1 = m(x - 0)
Then, use both points to find slope:
[tex]\frac{y2-y1}{x2-x1} =m[/tex]
[tex]\frac{-1-(-3)}{0-1}[/tex]
[tex]\frac{2}{-1}=m=-2[/tex]
Then, plug the slope into the equation and rewrite in the form of y=mx+b:
y + 1 = (-2)(x - 0)
y + 1 = -2x
y = -2x - 1
-1 = b OR (0, -1)
Final answers:
Equation: y + 1 = -2(x - 0) OR y + 3 = -2(x - 1)
Slope: -2
Y-intercept: (0, -1)
I hope this helps!
help me with this math question please its find the area <3
Answer:
9.628 cm²
Step-by-step explanation:
Let A be the area of the sector OAB
Let a be the area of the sector OCD
The shaded area = A − a
[tex]\begin{aligned}A &=\frac{1}{12} (\pi \times 7^{2}) \\&=12.828 \ldots\end{aligned}[/tex]
[tex]\begin{aligned}a & = \frac{1}{12}\left(\pi \times 3.5^{2}\right) \\&=3.2 \ldots\end{aligned}[/tex]
The shaded area ≈ 12.828 - 3.2 ≈ 9.628 cm²
find the missing side
1) 6
2) 6.41
3)6.40
Answer :
6.40. (Option 3)[tex] \\ [/tex]
Step-by-step explanation :
Here, A right angled triangle is given with the measure of two sides and we are to find the measure of the third side.
We'll find the measure of third side with the help of the Pythagorean theorem,
[tex]\\ {\longrightarrow \pmb{\sf {\qquad (Hypotenuse {)}^{2}= (Base) {}^{2} + (Perpendicular {)}^{2} }}} \\ \\[/tex]
Here,
The base (BC) is 4 The perpendicular (AC) is 5The hypotenuse (AB) is c.[tex] \\ [/tex]
So, substituting the values in the formula we get :
[tex]\\ {\longrightarrow \pmb{\sf {\qquad (c {)}^{2}= (4) {}^{2} + (5 {)}^{2} }}} \\ \\[/tex]
[tex] {\longrightarrow \pmb{\sf {\qquad (c {)}^{2}= 16 + 25 }}} \\ \\[/tex]
[tex] {\longrightarrow \pmb{\sf {\qquad (c {)}^{2}= 41 }}} \\ \\[/tex]
[tex] {\longrightarrow \pmb{\sf {\qquad c = \sqrt{41} }}} \\ \\[/tex]
[tex] {\longrightarrow \pmb{\frak {\qquad c \approx 6.40 }}} \\ \\[/tex]
Therefore,
The measure of the third side (c) is 6.40 .Step-by-step explanation:
As it is a right angle triangle , So
Hypotenuse = C unitsBase = 4 unitsperpendicular = 5 unitsWe have to find the value of hypotenuse i.e C
By Pythagoras theorem
H² = P² + B²
putting the known values ,
C² = 5² + 4²
C² = 41 units
C = √41 units
C = 6.40 units
What is the range?????? 100pts and
Answer:
the range is 8
Step-by-step explanation:
the range is the highest value number minus the lowest value number. You can find that by the whiskers of the box plot which are 10 and 2. 10 minus 2 is 8.
Please mark as brainliest
Answer:
8 is the answer
Step-by-step explanation:
find the 24th term of the arithmetic sequence whose common difference is d=5 and whose first term is a1=2
Answer:
94
Step-by-step explanation:
a1+ 23d =2+23*4= 94
94 is the 24 th term
please help me with A, B, and C
Answer:
A. 120 ft
B. 119
C. 2100 ft
Step-by-step explanation:
A. (Slipt the shape into 2 parts so it will be simpler)
For the triangle : 1/2 (4x12)
And for the rectangle : 12x8
1/2 (4x12) = 24
12 x 8 = 96
24 + 96 = 120 ft
_________________________________
B. (this time we can split it into 3 parts)
Longer rectangle : 12x6
Short rectangle : 5x5
Triangle : 1/2 (4x11)
LR : 12x6 = 72
SR : 25
T : 1/2 44 = 22
72+25+22 = 119
______________________________________
C. (Like the first one, we can split it into 2 parts)
Rectangle : 50x30
Triangle : 1/2 40x30
R : 1500
T : 1/2 1200 = 600
1500 + 600 = 2100
Hope this helps :)
this is from gradpoint, please help me y’all :((
Answer if im not misstaken its no
Step-by-step explanation:
because ur working with fractions they dont = the same thing. lmk if im wrong
Answer:
No, these functions fail to be inverses of each other.
Step-by-step explanation:
We have two functions :
f(x) = 3x + 2g(x) = [tex]\frac{x-2}{3}[/tex]Let's take the function f(x) and take x = 1.
f(1) = 3(1) + 2f(1) = 5 [Keep this in mind]If f(1) is 5, then if g(x) is an inverse function, g(1) should be [tex]\frac{1}{5}[/tex]Let's try the same with g(x).
g(1) = [tex]\frac{1-2}{3}[/tex]g(1) = [tex]-\frac{1}{3}[/tex]Clearly, they are not inverse functions of each other.
HELPPPPPPPPPPPPPPPPPPPPPP
Answer:
a) Class D - lowest variability/range
b) Class C - highest average/mean
Hope this helps!