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Nuetrik [128]
3 years ago
14

Select the postulate of equality or inequality that is illustrated.

Mathematics
2 answers:
slamgirl [31]3 years ago
8 0

Answer:

Option 3 is correct.

By symmetric postulates of equality

Step-by-step explanation:

Symmetric postulates of equality states that if one value is equal to another value, then the second value is also equal to the first value i.e,

if x =y , then y =x

Given:

If 5 =x +2

then by symmetric property of equality;  

x+2 = 5


Zanzabum3 years ago
4 0
The symmetric property of equality.

This property states that: if a = b, b = a.
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If y=2x^2-5x-3 find the value of y if x= -1​
Gelneren [198K]

Answer:

y = 4

Step-by-step explanation:

First we want to raise -1 to the power of 2

y = 2 * 1 - 5 * -1 - 3

Multiply

2 - 5 * -1 - 3

Multiply

y = 2 + 5 - 3

y = 7 - 3

y = 4

8 0
2 years ago
Please help me with this homework
yulyashka [42]
B= -42 C= -38
So the difference going up to positive is 4 and the difference going down in negative is -4.
5 0
2 years ago
ABCD ~ EFGH
vredina [299]

Answer:

FG = 20 in

Step-by-step explanation:

∵ ABCD ≈ EFGH

∴ AD/EH = BC/FG

∵ AD = 45 in

∵ EH = 60 in

∴ BC = 15 in

∴ 45/60 = 15/FG

∴ FG = (60 × 15) ÷ 45 = 20 in

4 0
2 years ago
Gianna is paid 90$ for 5 hours of work
mario62 [17]

Answer:

3 1/3 hours

Step-by-step explanation:

First we need to find how much she gets paid per hour. We can find this by diving the pay by the hours worked. Let x equal the pay per hour.

90/5=x

We can simplify the fraction by diving both the numerator and denominator by 5

(90/5)(5/5)=x

Do the division

18/1=x

Gianna gets paid 18 dollars per hour.

Now to find how much she needs to work we can divide the money she wants by the pay she gets per hour. Let y be the number of hours she needs to work.

60/18=y

turn into a mixed number

3 1/3=y

She would need to work 3 1/3 hours to make $60


3 0
2 years ago
Read 2 more answers
If f(x)=2x-4and g(x)=x^2 what is f(g(x))
DerKrebs [107]
F(g(x))
sub g(x) for every x in f(x)

f(g(x))=2(g(x))-4
f(x^2)=2(x²)-4
f(g(x))=2x²-4
7 0
2 years ago
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