If A, B and C are collinear, then:
substitute:
Answer: He used of a meter for each mask.
Step-by-step explanation:
Given : A tailor used 2 meters of string to make 10 Halloween masks.
Here, Total length of string = 2 meters
Number of masks = 10
The the part of a meter of string is used for each Halloween mask will be :-
[Divide total length of string by number of masks]
Hence, he used of a meter for each mask.
Answer:
Step-by-step explanation:
2πr/4=2π
r/4=1
r=4 cm
Answer:
Step-by-step explanation:
x² + x - 2 = x² - x +2x -2 = x(x - 1) + 2*(x-1) = (x-1)(x+2)
8x² + 4x = 4x ( 2x + 1)
3x² + 10x + 8 = 3x² + 6x + 4x + 4*2 =3x * (x + 2) + 4 * ( x + 2) = (x + 2)(3x + 4)
Ratio of areas of similar triangles is 9 : 25.
Solution:
Given data:
Ratio of sides of two similar triangles = 3 : 5
To find the ratio of areas of the triangles:
We know that,
In two triangles are similar, then the ratio of their area is equal to the square of the ratio of their sides.
Ratio of areas of similar triangles is 9 : 25.
Answer:
16
:
81
Explanation:
Scale factor for the sides of these triangles.
k
=
4
9
.
Therefore the ratio of area will be:
k
2
=
Area Triangle A
Area triangle B
k
2
=
(
4
9
)
2
=
16
81
There are 4 quarts in one gallon:
1 gal = 4 qt
Then, we want to find the number of quarts in 19 gallons. We can write a proportion:
1/4 = 19/x
Cross multiply:
x = 76 quarts.
There are 76 quarts in 19 gallons.
76 quarts in 19 gallons
Answer:
I hope this is what you mean, it could be 238, 328, 823, 283, 832, and many more.
Step-by-step explanation: