Answer:
Rearrange these numbers in ascending order.
-9.9, -9.78, -9.57, -9.53, -9.511, -9.31, -9.30
The reason being is that since it is negative, the numbers that are appearing to get smaller are the numbers that are bigger than the others
Answer:
Step-by-step explanation:
First sequence : 10,9.5,9,8.5,...
Let's see the difference between 2 numbers :
10 - 9.5 = 0.5
9.5 - 9 = 0.5
9 - 8.5 - 0.5
So on and so on. So, the common difference between these numbers are 0.5
Next sequence : 200,100,50,25, ...
We see, to get from one number to another, we divide it by 2 / multiply it by 1/2.
200 x 1/2 = 100
100 x 1/2 = 50
50 x 1/2 = 25
So on and so on. So, the common ratio of these numbers are 1/2.
Answer:
20 and 5
Step-by-step explanation:
20+5=25
20÷5=4
Please check attached file to see if you mean the same triangle.
Basically, to find the area of a triangle, you are going to use the formula :
A = b × h where b is base, h is height.
2
others also use the formula: <span> Area=1/2(bxh)</span>
Based on the figure, we have 6.9 cm (base) and 4 cm (height) as given.
Let us work out on the area of the said triangle.
A= <u>6.9cm × 4cm</u>
2
= <u>27.6cm</u>²<u>
</u> 2
A= 13.8 cm²
Hope this helps!
C=10, C=90°, B=30°, A+B+C=180°
A+30°+90°=180°⇒A=60°
cos30°=a/c
cos30°=a/10⇒a=cos30°*10
a<span>≃8.6602
c²=a²+b²⇒b²=c²-a²
b²=10²-8.6602²⇒b²=25
b=5
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