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Elanso [62]
3 years ago
15

How to know if the number is a perfect square​

Mathematics
1 answer:
emmasim [6.3K]3 years ago
3 0

Answer:

Step-by-step explanation:

Prime factorize the given number. All factors should have pair. If all factors have pair, then it is a perfect square

EG: 36 : Factors of  36 are 2,3,2,3. Here there are two 2's and two 3's. so 36 is a perfect square.

EG: 24: Factors of 12 are 2,2,3. Here 3 is without pair. so it is not a perfect square.

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Given f(x) = x^2 – 3x – 2, what is f(5)?
miskamm [114]

Answer:

f(5)=8

Step-by-step explanation:

Given function: f(x)=x^2-3x-2

To find f(5), simply input x=5 into the function:

\begin{aligned}\implies f(5) & =5^2-3(5)-2\\& = 25-15-2\\& = 10-2\\& = 8\end{aligned}

5 0
2 years ago
Read 2 more answers
What is the value of x in the <br> triangle?
Makovka662 [10]

Answer:

x = 75°

Step-by-step explanation:

Sum of angles in a triangle: 180°

So,

50°+55°+x=180°

105°+ x = 180°

Subtract 105° from both sides

x = 75°

8 0
3 years ago
Please
Jlenok [28]

Answer:

40% of the graduates didn't receive flowers.

Step-by-step explanation:

20*5= 100

meaning 1/5 of 100 is 20 so 2/5 is 40 and 3/5 is 60 leaving 40

4 0
3 years ago
Brianna has $25 and a $10 gift certificate to a clothing store she buys two T-shirts for $9.97 each what are the questions you m
arlik [135]

Answer:

$15.06

Step-by-step explanation:

First you add $25.00 and $10.00 Then you multiply $9.97 by two and you would get $19.94 which you would then subtract $19.94 from $35

4 0
4 years ago
Choose the correct discriminant, then
irina [24]

Answer:

3

Step-by-step explanation:

Order of Operations; PEMDAS  

Parentheses  

Exponents  

Multiplication & Division (Left to Right) (ex: 10x2÷5) You would do whatever comes left for Multiplication or Division.  

Addition & Subtraction (Left to Right) (ex: 10-2+5) You would do whatever comes left for Addition & Subtraction.

3x+6 =

(9+6=15)

(6x2=12)

(12-15=<u>3</u>)

7 0
3 years ago
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