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sladkih [1.3K]
3 years ago
14

PLEASE HELP

Mathematics
1 answer:
Reil [10]3 years ago
6 0
Is there a graph or anything given
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2. If x=2, y=3 find<br>value of <br>x²-5y+2​
Damm [24]

Answer:

-9

Step-by-step explanation:

Substitute the give values into the correct place in the equation.

Since x=2, y=3,

Place "2" in the x of the equation, and "3" into the y of the equation.

x²-5y+2​

= 2² - 5(3) + 2

= 4 - 15 + 2

= -9

5 0
3 years ago
Read 2 more answers
How many real roots does the function
icang [17]

Answer:

Option C is correct i.e. 2.

Step-by-step explanation:

Given the function is f(x) = x² +8x -2.

We can compare it with general quadratic expression i.e. ax² +bx +c.

Then a = 1, b = 8, c = -2.

We can find the number of real root by finding discriminant of the equation ax² +bx +c =0 as follows:-

D = b² -4ac

D = 8² -4*1*-2

D = 64 +8

D = 72.

When D is a positive value, then we have two real roots of the equation.

Hence, option C is correct i.e. 2.

6 0
2 years ago
1/a+2/b+3/c; Express as a single fraction.
Anika [276]
Answer: (bc+2ac+3ab)/(abc)
8 0
2 years ago
Read 2 more answers
Find the slope and the x and y-intercept of the equation 2x-3y=12
Maslowich
X=9
Y=2 i think it’s the answer
4 0
3 years ago
What is the answer to this question<br> Possible Answers <br> A.4.5<br> B.5.4<br> C.9.1<br> D10.9
vova2212 [387]
The answer is B. 5.4
7 0
3 years ago
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