Answer:
Step-by-step explanation:
35 times 12=420
Answer:
210 cm^2
Step-by-step explanation:
The left rectangle is 65 cm^2, the middle rectangle is 60 cm^2, the right rectangle is 25 cm^2, and the two triangles are each 30 cm^2
Answer:
If two figures are similar, then the correspondent sides are related by a constant factor.
For example, if the base of one side of one of the figures has a length L, then the correspondent side of the other figure has a length k*L where k is the scale factor.
Let's start with the two left triangles.
In the smaller one the base is 5, and the base of the other triangle is 15.
Then we will have:
15 = k*5
15/5 = k = 3
The scale factor is 3.
Then we will have that:
a = scale factor times the correspondent side in the smaller triangle:
a = k*3 = 3*3 = 9
a = 9
For the other two triangles, the base of the smaller triangle is 12, while the base of the larger triangle is 20.
Then we will have the relation:
12*k = 20
k = (20/12) = 10/6 = 5/3
The scale factor is 5/3
This means that the unknown side b is given by:
b*(5/3) = 15
b = (3/5)*15 = 3*3 = 9
b = 9.
The difference of 2.5 x 
- 1.5 x 10³ is 2.35 x .
<h3>What is the difference?</h3>
Difference is the result of the subtraction of two or more numbers. The numbers are written in scientific notation. Scientific notation is a method that is used to write large numbers.
The exponent of the numbers have different value. In order to evaluate them, they have to have the same values.
2.5 x - 1.5 x 10³
2.5 x - 0.15 x
2.35 x
To learn more about scientific notation, please check: brainly.com/question/25334755
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3 81/100 is 3.81 as a mixed number.
A mixed number is a number consisting of an integer (3) and a proper fraction (81/100). There is no way to simplify 81/100 so you leave it at that.
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