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babymother [125]
3 years ago
9

If a = 3 and b = 2, what is the value of the expression 11 + a - b ?

Mathematics
1 answer:
Vadim26 [7]3 years ago
4 0
Substitute the values of a and b into the expression:
11 + 3 - 2
Add first because of order of operations (perform addition and subtraction in the order of occurrence from left to right):
14 - 2
Subtract (same justification as above just with subtraction instead):
12
Hope this helps!
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Select the correct answer.
Pani-rosa [81]

Answer:

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Step-by-step explanation:

because it has division in it

6 0
3 years ago
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

The answer is thus 2.2 metres squared.

<em>~ an aesthetics lover</em>

8 0
3 years ago
Lua is creating a rectangular prism the base of her prism is shown below she plans to have a height of 7 cubes
tresset_1 [31]

Answer:

63

Step-by-step explanation:

hhehehehhehehehehh hope this helps

7 0
2 years ago
SOLVE THIS PROBLEM PLEASE EXPLAIN HOW IT IS CORRECT PROVIDE! ASAP PLS THANK YOU SO MUCH FOR HELPING 10+ POINTS
Savatey [412]

Answer:

14x7=98

Step-by-step explanation:

First you see the line going down and there is the height 7 you can move that tiny triangle to the left where the parallelogram can be made into a rectangle.

all you need is to multiply base x height

base 14cm height 7cm pls brainliest

hope this helps!

5 0
3 years ago
Please tell me 1-3 which is similar and not thanks
gogolik [260]
The second and the third one are similar.
7 0
2 years ago
Read 2 more answers
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