~~~30 POINTS~~~
Please answer this math question!
Answers
(a): The original perimeter is 2(x+y), but the new one is 2(2x+2y). This is twice the original perimeter, so it is 18*2=36.
(b): The original area is xy, and the new one is (2x)(2y), or 4xy. This is four times the original area, or 20*4=80.
(c): As it's given that the side lengths are integers, the intended solution is most likely to divide by 2 in the perimeter to see that the sum of the side-lengths is 9 and their product is 20. Guessing/checking values for each side, we see that 4 and 5 work for the smaller rectangle. Multiplying by two, the larger one has lengths 8 and 10.
Alternatively, we set them to x and y and use the equations:
x+y=9
xy=20
Dividing by y, we see that x=20/y. Substituting, we have that y+20/y=9. Subtracting 9 and multiplying by y, we have:
y^2-9y=20
Factoring, we have (y-5)(y-4)=0. The solutions to this equation are 4 and 5, which result in x=5, y=4 or x=4, y=5 respectively. Thus, we see that 4 and 5 are the side-lengths. Note that this solution did not require the assumption that the side-lengths are integers!
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Answers
It’s 10. 5 and 10 have both in common.
We leave 3/10 alone because if you times it by 1, the answer is going to be the same. 3 x 1 = 3 & 10 x 1 = 10.
3/5, we know the denominator have to be 10 so 3 x 2 and 5 x 2. It’s 6/10.
Now solve the common denominator, we going to subtract. 6/10 - 3/10
The answer is 3/10.
Answer:
equal to 3/5 = 6/10 and 3/10 = 6/20
Step-by-step explanation:
because
3/5= 0.6
and also
6/10= 0.6
so they are equal as they give the same answer
the same with
3/10= 0.3
and also
6/20 = 0.3
so they are equal
Answers
The co-ordinates of N' will be (1.5c,1.5d).
What is a quadrilateral ?
A quadrilateral is a 2D figure having four sides.
According to the given question a quadrilateral M N O P was dilated with the origin as the center of dilation to create quadrilateral M ′ N ′ O ′ P ′.
The quadrilateral was dilated using a scale factor of 1.5.
Assuming the given co-ordinates of the quadrilateral are (a,b), (c,d), (e,f), (g,h).
It is dilated by a factor of 1.5 with origin as the center of dilation we can think of these given vertices of the quadrilateral as straight lines from origin so after the dilation each line will be stretched by a factor of 1.5.
∴ The dilated co-ordinates will be multiplied by a factor of 1.5 and they will be
(1.5a,1.5b), (1.5c,1.5d), (1.5e,1.5f), (1.5g,1.5h).
learn ore about quadrilateral here :
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Answer:
12
Step-by-step explanation:
I got the answer on ttm.
8 times 1.5 = 12
Answers
ANSWER- .4
Answers
Answers
If we slice this down the middle and fit it together like a puzzle we'll get a rectangle base 9.6/2 and height 4.8+9 so area (9.6/2)(4.8+9) = 66.24 square units.
Choice d
Think of the area divided into two parts.
A rectangle, 4.8 units by 9.6 units,
and a triangle with base 9.6 units and height 9 - 4.8 = 4.2 units.
Find the areas of the rectangle and triangle and add them.
Rectangle:
A = LW = 4.8 * 9.6 = 46.08
Triangle:
A = bh/2 = 9.6 * 4.2/2 = 20.16
Add the areas:
46.08 + 20.16 = 66.24
Answer: d. 66.2 units^2
A
5x3−17x2+4
B
5x3−3x2−14
C
9x3−3x2−14
D
5x3−17x2−14
Answers
Answer:
f(x)-g(x)=5x^3-17x^2+4 which appears as option A
Step-by-step explanation:
Simply subtract the function's expressions as shown below, and combine like terms to express the final result: