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Marrrta [24]
3 years ago
13

Which property of equality was used to solve this equation? x − 5 = -14 x − 5 + 5 = -14 + 5 x = -9

Mathematics
1 answer:
Reika [66]3 years ago
7 0

Answer:

Additive property

Step-by-step explanation:

Given

x - 5 = -14

Required

The property used

In the 2nd step, 5 was added to both sides, i.e.

x - 5+5  = -14 + 5

<em>The above is an illustration of additive property of equality, i.e. Adding or subtracting the same variable or constant to both sides of an equation</em>

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If AB=BC,AB=4=4x-2,andBC=3x+3,fine the length of AB
laila [671]

Answer:

18

Step-by-step explanation:

First, I'm assuming AB=4=4x-2 was a typo and it's supposed to be AB = 4x - 2

AB=BC

AB = 4x - 2 BC = 3x + 3

4x - 2 = 3x + 3

Solve for x Add 2 to each side

4x - 2 = 3x + 3

4x - 2 + 2 = 3x + 3 + 2

4x = 3x + 5 Subtract 3x from each side.

4x - 3x = 3x- 3x + 5

4x - 3x = 5

x = 5

Now plug back in to the original equations

AB = 4x - 2                  BC = 3x + 3

AB = 4 (5) - 2               BC = 3(5) + 3

AB = 20 - 2                  BC = 15 + 3

AB = 18                        BC = 18

So AB is 18

3 0
3 years ago
the total length of 4 blue banners an 5 yellow banners is 49 meters. the total length of 2 blue banners an 1 yellow banner is 17
marin [14]
Yellow banner is 5
Blue banner is 6
8 0
3 years ago
Read 2 more answers
Plz help me if you see this
Nezavi [6.7K]

Answer:

I am confused on what you are asking but I think the answer is y=12345x

Step-by-step explanation:

its correct

3 0
3 years ago
Ok the first question confuses me what is the volume of the prisom show in the top?
Veronika [31]
Split the shape in to two this is the rectangular side.
15+6=21
21×7=147
147×4=588in
square shape
6+6=12
12×12=144
144×4=576in
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588+576=1164in
1164 is how many more inches greater
5 0
3 years ago
Find the value of c that makes t^2 - 22t+ c a perfect square trinomial.
allochka39001 [22]

The expression is a perfect square trinomial if and only if c = 121.

<h3>How to get the value of c?</h3>

A perfect square trinomial is written as:

(a + b)^2 = a^2 + b^2 + 2ab

In this case, we have:

t^2 - 22t + c

We can rewrite this as:

t^2 - 2*11*t + c

Then we have:

a = t

b = -11

And we will have that:

c = b^2 = (-11)^2 = 121

Then we have:

t^2 - 2*11*t + 121

Which is a perfect square trinomial:

(t - 11)^2 = t^2 - 22t + 121

Learn more about perfect squares:

brainly.com/question/1538726

#SPJ1

8 0
1 year ago
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