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lilavasa [31]
3 years ago
13

he addition property of equality states * 10 points x = x if x = y, then y = x if x = y and y = z, then x = z if a = b, then a +

1 = b + 1
Mathematics
1 answer:
zubka84 [21]3 years ago
5 0

Answer:

this is sp confusing i had a stroke

Step-by-step explanation:

lol im so confused i don't know how to answer this

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You must be at least 42 inches tall to ride the bumper cars at an amusement park. Write an inequality that represents this situa
Anestetic [448]

Answer:

x is greater than or equal to 42 inches (I can't do the smybol for it)

Step-by-step explanation:

5 0
3 years ago
Please help, will give brainlist!
Grace [21]

Answer:

B.

Step-by-step explanation:

3 0
3 years ago
Please help!!!!!!!!!!
Gnoma [55]

Answer:

The surface of the prism is 84m²

Step-by-step explanation:

You have 4 figures here (two the same triangles)

you need to determine the surface of each and then sum it to one. This will be your final surface.

rectangles:

3*6= 18m²

5*6 = 30m²

4*6 = 24m²

triangles:

You need to determine the square of the triangles from the Heron's formula.

Heron's formula states that the area of a triangle whose sides have lengths a, b, and c is

S=\sqrt{s(s-a)(s-b(s-c)},

where s is the semi-perimeter of the triangle; that is,

s=\frac{a+b+c}{2}.

So the permimeter of the triangle is

2p=4+5+3 = 12m

p = 6m

S = \sqrt{p*(p-a)*(p-b)*(p-c)}  = \sqrt{6*(6-3)*(6-4)*(6-5)}  = \sqrt{6*3*2*1} =\sqrt{36} =6[m^{2} ]

So the surface of the prism is a total sum of all surfaces:

P = 18m²+30m²+ 24m²+2*6m² = 84m²

6 0
3 years ago
23 and 24 I need help please
Gnoma [55]

Answer:

They should purchase the snack with the purple box. This is the answer for 23, i don't know what 24 is sorry.

Step-by-step explanation:

24÷3=8

8×5=40

so the first snacks would cost them $40.

then:

24÷4=6

6×6=36

so the second snacks would cost them $36

5 0
3 years ago
I need help on my math
uysha [10]
The answer should be the first one exponential
8 0
3 years ago
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