Step-by-step explanation:
Given
Model to Actual = 5:9
5cm in Model = 9cm actual
1cm in model = (9/5)cm = 1.8cm
36cm in model = 1.8cm x 36 = 64.8cm
Which of the following represents a sum from the expression given?
A. 21
B. 2
C. 13x2
D. 13x2 + 8x
There are 4 red marbles and 7 blue marbles in a bay.
(a) What is the ratio of all marbles in the bag to blue marbles?
(b) What is the ratio of all marbles in the bag to red marbles?
Answer:
a: 11:7
b: 11:
I hope this helped :)
2
2. alb -c) - (a-c)
3. 6(2x - y) - 4(x + 2y)
x(a + b)-x(a +36
ractions in algebra
Answer:
ab - ac -a + c
8x - 8y
bx - 36x
Step-by-step explanation:
Given:
a(b -c) - (a-c) 6(2x - y) - 4(x + 2y) x(a + b)-x(a +36)Rewrite in simple form
Computation:
1. a(b -c) - (a-c)
ab - ac -a + c
2. 6(2x - y) - 4(x + 2y)
12x - 6y - 4x - 2y
8x - 8y
3. x(a + b)-x(a +36)
ax + bx - ax - 36x
bx - 36x
-3x + y = 10, what is the value of x when y = 1?
Answer:
-3
Step-by-step explanation:
-3x+1=10
-3x=9
x=-3
Answer:
-3
Step-by-step explanation:
-3(-3)+1=10 hope this helped?
the height of the rectangular box is 4 times its width, and its length is 2 in more than its width. the volume of the box is 60in^3
Step-by-step explanation:
height= 4b
length = 2 + b
volume = 60in³
or, l ×b × h = 60in³
or, (2+b) × b × 4b = 60in³
or, 4b²(2+b) = 60in³
or, 8b² + 4b³ = 60
or, 2b² + b³ = 15
or, b³ + 2b² -15= 0
b= 1.95
l= 2+1.95=3.95
h= 4×1.95 = 7.8
What the perimeter of the triangle
Answer:
24
Step-by-step explanation:
so multiplies see och the rest of the world and the second half and the other hand if you have a good and the second one is the only way only a and the other is the first time I saw one he and only best o
Answer:
33b-8 is the perimeter
Step-by-step explanation:
Triangle is an Isosceles triangle so two side is equal
2(12b - 8) + 9b + 8
Distribute
24b - 16 + 9b + 8
Combine like terms
33b -8
Find the volume of a pyramid with a square base, where the perimeter of the base is 6.9 cm and the height of the pyramid is 6.4 cm. Round your answer to the nearest tenth of a cubic centimeter
Answer:
6.3 cm^3
Step-by-step explanation:
volume of a pyramid = 1/3(length x width x height)
perimeter of a square = 4 x length
6.9 = 4 x length
length = 6.9 /4 = 1.725
Volume = 1/3 x (1.725 x 1.725 x 6.4) = 6.348
the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero
recursive formula for 3,5,7,9,11
Answer:
[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] + 2
Step-by-step explanation:
There is a common difference d between consecutive terms
d = 5 - 3 = 7 - 5 = 9 - 7 = 11 - 9 = 2
A recursive formula allows a term in the sequence be found by adding d to the previous term, then
[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] + 2 : with a₁ = 3
1000000000+1000000000
A bike shop in Belleville bought a mountain bike for $723 and marked it up 50% from the original cost. Later on, Andy purchased the mountain bike and paid Belleville sales tax of 14%. How much, including tax, did he pay for the mountain bike?
Answer:
Answer is in a photo.
Step-by-splanation:
Answer:
hey
Step-by-step explanation:
so i dont know
how to solve this and i cant help u
Please look at the photo
Answer:
not similar
Step-by-step explanation:
The shape below is made of a semicircle and a triangle.
2)
16 cm
12 cm
Determine the area of this shape
Show your work
Please help me I will give 10 points
Please only correct answers
Answer:
32π + 96 [tex]cm^{2}[/tex] = exact area
196.48 [tex]cm^{2}[/tex] = area to the nearest 100th
Step-by-step explanation:
Area of semicircle = 1/2π[tex]r^{2}[/tex] = 1/2π[tex]8^{2}[/tex] = 1/2π(64) = 32π
Area of triangle = 1/2bh = 1/2(16)(12) = 96
Total area = 32π + 96 [tex]cm^{2}[/tex]
or 100.48 + 96 = 196.48 [tex]cm^{2}[/tex]
32π + 96 cm² = exact area
196.48 cm² = area to the nearest 100th
What is a semi-circle?A semicircle is a one-dimensional locus of points that makes up one half of a circle in mathematics. A semicircle's whole arc is always 180 degrees long. It just has one symmetry line.
Given
Area of semicircle = 1/2πr² = 1/2π(8)² = 1/2π(64) = 32π
Area of triangle = 1/2bh = 1/2(16)(12) = 96
Total area = 32π + 96 cm²
or 100.48 + 96 = 196.48 cm²
To know more about semi-circles refer to:
https://brainly.com/question/10653168
#SPJ2
8. The two triangles are congruent as suggested by their appearance. Find the value of all the variables. The
diagrams are not to scale.
Steps would be extremely appreciated (20 points)
Answer: d is 53 degrees, c is 5, g is 13, e is 90 degrees, f is 37 degrees, b is 12 .
Step-by-step explanation:
Since they're congruent you just compare the two and replace them. You have the answers on both sides, they're just split up. So look at one side, then the other, and see what you can find. Repeat.
Answer and Step-by-step explanation:
Since the triangles are congruent, that means all the variables correspond to the values of the other triangle, and vise versa.
g = 13
b = 12
f = 37
a = 90
c = 5
d = 53
I hope this helps!
#teamtrees #PAW (Plant And Water)
Pls help and thank youuuu
Answer:
-3
Step-by-step explanation:
3 cubed is 27 and since its a negative integer you keep the (-) symbol.
The would have been 3 if it asked for the negative cube root of -27
Are the numbers in front of either the x or y variables
opposites? If yes, add the columns together.
3x-2y=10
+ 7x+2y = 30
———————
Lol please help.
Carla and Andrew have 29 puppies. Andrew has 8 more than twice Carla How many puppies does person have?
Answer:
Andrew has 22 puppies, Carla has 7 puppies.
Step-by-step explanation:
Let's set up an equation.
Carla and Andrew have 29 puppies.
C + A = 29
Andrew has 8 more than twice Carla.
A = 2C + 8
Let's use substitution by plugging A into C + A = 29.
A = 2C + 8 & C + A = 29
C + (2C + 8) = 29
Now, let's combine like terms.
3C + 8 = 29
Subtract 8 from both sides.
3C = 21
Divide both sides by 3.
C = 7
Carla has 7 puppies. Plug in this value back into C + A to find how many puppies Andrew has.
C + A = 29
7 + A = 29
A = 22
Andrew has 22 puppies.
Let's check our work. Plug in Andrew and Carla's number of puppies back into our original equations.
C + A = 29
7 + 22 = 29
29 = 29
Correct!
A = 2C + 8
22 = 2(7) + 8
22 = 14 + 8
22 = 22
Your answer is correct!
Hope this helps!
Can someone explain it to me?
9514 1404 393
Answer:
175.2 square feet
Step-by-step explanation:
The lateral area is the total area of the side faces. It excludes the area of the top and bottom "bases" of the prism.
It can be found by adding the areas of the four rectangles. The two you can't see have the same areas as the two you can see.
Since the height of each rectangle is 4 feet. the total area will be the product of that and the perimeter of the prism.
LA = Ph . . . . perimeter times height
LA = 2(L+W)h . . . . the perimeter is twice the sum of length and width
LA = 2(12.3 ft + 9.6 ft)(4 ft) = 2(21.9 ft)(4 ft) = 175.2 ft²
The lateral area of the prism is 175.2 ft².
__
The attachment shows scribbling on two of the faces that contribute to the lateral area. As stated above, the other two faces are the same size as these.
what is 64x6+27 written as a sum of cubes?
Answer:
To transform the given expression to the sum of cubes, calculate first the cube root of the terms. The cube root of the first term, 64x^6 is 4x^2 and that of the second term, 27 is 3.
Thus, the answer to this is (4x^2)^3 + 3^3
The vertex will ALWAYS be on the axis of symmetry.
True
False
Answer:
False the vertex will not always be on the axis of symmetry.
(I may be wrong, please don't be mean its what I was taught)
uhh i dont understand but if you do all of these I will give you brainliest on all of your answers it
Answer:
Step-by-step explanation:

A.5,8 and 4,5
B.5,8 and 4,3
D. 4,5 and 4,3
Please help
Answer:
b
Step-by-step explanation:
The graph below shows a proportional relationship between y and x.
What is the constant of proportionality, y/x?
y to x
40 1
60 1.5
80 2
Answer:
80 2
Step-by-step explanation:
am not sure about that answer i think it is correct
Answer:
40
Step-by-step explanation:
For each pair of functions f and g below, find f(g(x)) and g(f(x)).
Then, determine whether f and g are inverses of each other.
Simplify your answers as much as possible.
(Assume that your expressions are defined for all x in the domain ofthe composition.
You do not have to indicate the domain.)
Answer:
a) f(g(x)) = [tex]\frac{1}{2(\frac{1}{2x} )}[/tex] = [tex]\frac{1}{\frac{1}{x} } }[/tex] = x
g(f(x)) = [tex]\frac{1}{2(\frac{1}{2x} )}[/tex] = [tex]\frac{1}{\frac{1}{x} } }[/tex] = x
f and g are inverses
b) f(g(x)) = x + 3 + 3 = x + 6
g(f(x)) = x + 3 + 3 = x + 6
f and g are not inverses
Step-by-step explanation:
a)
f(g(x)) = [tex]\frac{1}{2(\frac{1}{2x} )}[/tex] = [tex]\frac{1}{\frac{1}{x} } }[/tex] = x
g(f(x)) = [tex]\frac{1}{2(\frac{1}{2x} )}[/tex] = [tex]\frac{1}{\frac{1}{x} } }[/tex] = x
Since f(g(x)) = g(f(x)) = x, then f and g are inverses
b)
f(g(x)) = x + 3 + 3 = x + 6
g(f(x)) = x + 3 + 3 = x + 6
Since f(g(x)) = g(f(x)) ≠ x, then f and g are not inverses
Work out the area of the triangle. 13m 12m and 5m
Answer:
30m²
Step-by-step explanation:
To find the area of a triangle, you need to ensure that the triangle is a right-angled triangle. We can use the Pythagoras Theorem to help us prove that.
a² + b² = c²
5² + 12² = 169
13² = 169
By converse of Pythagoras Theorem, the triangle is a right-angled triangle.
Thus, you can directly find the area of the triangle using the formula: base × height ÷ 2.
Area = 12 × 5 ÷ 2
= 30m²
How would you graph a line through the point (-2, -5), with a slope of 2/7? Be specific.
First, you would plot the point (-2,-5). The next part requires an understanding of what slope is. My teacher told me slope was "rise over run." Basically, the numerator is how much the value of y increases when x increases by the number that's in the denominator. What that means is, when you add 7 to the x value, you add 2 to the y value. You can use this to find another point to graph.
(-2+7,-5+2)
=(5,3)
You can plot this point and draw a line through both points, and you're finished.
Another thing could do is draw a slope triangle. Draw a line (segment) from (-2,-5) for 7 units in the direction of the x-axis. Draw a line (again, a segment, really. We have to be technical xD) from where that segment ends for 2 units in the direction of the y-axis. Plot a point where that ends, and it should be (5,3). Draw a line through (5,3) and (-2,5), and you're done.
Hope I could help you!
Consider the series 1/4 1/8 1/16 1/32 What is an expression of Sn for the series shown?
Answer:
c
Step-by-step explanation:
edg 21 ^u^
Answer:
The person above me is correct. :D
Step-by-step explanation:
We can use the formular-
12.6
to relate a ball's surface area S (in square Inches) to its radius r (in inches). Suppose a ball has a surface area of 226.8
square Inches. What is its radius?
Round your answer to the nearest tenth
Answer:
r = 4.24 inches
Step-by-step explanation:
Given that,
The surface area of the ball, A = 226.8 sq inches
The formula for the surface area of a sphere is given by :
[tex]A=4\pi r^2[/tex]
Where
r is the radius of the ball
[tex]r=\sqrt{\dfrac{A}{4\pi}} \\\\r=\sqrt{\dfrac{226.8}{4\pi}} \\\\r=4.24\ inch[/tex]
So, the radius of the ball is 4.24 inches.
PLLSSSSS HELPPPP I DONT GET THIS AT ALL
Answer:
[tex]y\leq 4[/tex]
Step-by-step explanation:
The range is about the y values, and by looking at this parabola we can see that the maximum value is a 4. So the range would be the maximum and below (where the parabola extends to). So the values in the range would be equal to 4 and less than since the parabola is negative.
Hope this helps :)
Do Now
You decide to bake Banana Bread. The recipe calls for 1 1/2 bananas, to 2 1/2 cup of
flour, to 1 cup of sugar. You only have 1 cup of flour to use. What is the new ratio
for the other two ingredients using this unit rate of flour?
Answer:
1 banana, 1 cup flour, 2/3 cup sugar
Step-by-step explanation:
Graph the line Y = 20
Answer:
Step-by-step explanation: