What Is 7+18divided by(6-3)

2 answers:

7 0

We should follow the order of operations to solve this problem
7+18/(6-3)
First, we solve the problem in the parenthesis 6-3=3
7+18/3
Then we divide 18 by 3 which you get 6
7+6
Then you just add the remaining 7+6=13

Pani-rosa [81]3 years ago

5 0

Bananabusyo is correct. First we have to do the parentheses. 6-3 is 3. Then we have to divide 18 by 3 to get six. 7+6 = 13.

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Find the area of the trapezoid to the nearest tenth.

erica [24]

Answer:

2.2 metres squared

Step-by-step explanation:

We need to find the area of this trapezoid.

The area of a trapezoid is denoted by:

$A=\frac{(b_1+b_2)h}{2}$ , where $b_1$ and $b_2$ are the parallel bases and h is the height

Here, we already know the lengths of the two bases; they are 0.9 metres and 2.3 metres. However, we need to find the length of the height.

Notice that one of the angles is marked 45 degrees. Let's draw a perpendicular line from top endpoint of the segment labelled 0.9 to the side labelled 2.3. We now have a 45-45-90 triangle with hypotenuse 2.0 metres. As one of such a triangle's properties, we can divide 2.0 by √2 to get the length of both legs:

2.0 ÷ √2 = √2 ≈ 1.414 ≈ 1.4

Thus, the height is h = 1.4 metres. Now plug all these values we know into the equation to find the area:

$A=\frac{(b_1+b_2)h}{2}$

$A=\frac{(0.9+2.3)*1.4}{2}=2.2$