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alekssr [168]
3 years ago
6

2+(a+b) for each expression use a property to write an equivalent expression tell wich papery you would use

Mathematics
1 answer:
Oksanka [162]3 years ago
4 0
Property would be addition and the equivalent would be 2+a+b, a+b+2, a+2+b, b+a+2 and b+2+a
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PLEASE HELP ASAP
PIT_PIT [208]

Answer:

27 cubic feet

Step-by-step explanation:

A pyramid is always 1/3 of a cube when it has the same base as a pyramid.

ALSO, thats why the volume of a square pyramid has 1/3 in it.

So, if the volume of this pyramid is 9 cubic feet then:

9 x 3 = 27 cubic feet

Hope this helps!

3 0
2 years ago
Omg pls help me i only have a few min left imma cry
hodyreva [135]

Answer:

option B

Step-by-step explanation:

since DA and CB are equal and originate from same line segmnet, they are parallel, so angle D and angle C are equal, angle A and anfle B are equal and angle E is the same for both,

4 0
3 years ago
Find the equation of the line parallel to y=2x+1 that contains point (14,3)
Sophie [7]

First of all, remember what the equation of a line is:

y=mx+b

Where: 

m=slope

b=y-intercept.

Given this information, we can start by plugging in what we know, we are given the slope which is 2 so we can fill that in, remember m=slope

y=2x+b

To find b, think about what your (x,y) point means:<span>(14,3). When x of the line is 14, y of the line must be 3.

Because we were given the point (14,3) 
</span>

We need to find the value of b.  The 2 is already set and x and y are variables. We want the equation for the line that specifically passes through the given point (14,3).

<span>Plug in for x the number 14 and for y the number 3:
</span>(14,3).
 y=mx+b or 3=2 × 14+b,

solving for b: b=3-(2)(14). b=-25.

<span>Plug that in for b: 
</span><span>y=2x-25
<span>Final answer: 
</span><span>y=2x-25</span></span><span><span>
</span></span>
8 0
2 years ago
At a zoo 5% of the birds are macaws. What decimal is equivalent to 5%
Svetllana [295]
0.05 is 5 percent is decimal form. In order to get the decimal form of a percentage you have to move your decimal to places left. Your invisible decimal is where the percentage sign at the end of your number is. Hope this helps.
6 0
3 years ago
Find the perimeter of a regular dodecagon whose vertices are twelve equally spaced points on the unit circle.
Ivenika [448]
The vertex angle of any triangle of the dodecagon formed by radii and a side is 360/12=30º.
The half-length of the base of the triangle is sin15=0.2588 approx.
Since there are 12 sides there are 24 half-sides in the perimeter=6.2117.
3 0
2 years ago
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