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Rashid [163]
4 years ago
8

REALLY NEED ALGEBRA HELP please

Mathematics
1 answer:
lisabon 2012 [21]4 years ago
8 0
A. The discriminant is 81. The formula is b^2 - 4ac.

B. 2 answer and both will be rational due to the fact that the discriminant is a perfect square. 

C. Solutions are 1/2 and -4. You can find using the quadratic formula. 
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1/4 and 1/2 common denominators​
Paha777 [63]

Answer:

4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The square root of 10 squared is 100<br> True or False <br> Explanation:
kompoz [17]

Answer: False

Step-by-step explanation:  

The square root of 100 squared is 10 but the square root of 10 squared is 10

8 0
3 years ago
Draw TWO lines in each 90 degree angle, cutting each 90 into three equal angles.
Serga [27]

Answer:

I think the circles would be cut into eighths then.

Step-by-step explanation:

I hope this helps you! :D

3 0
3 years ago
las edades de maría y susana suman 56 años si la edad de maría es los 3/5 de la edad de susana ¿ que edad tiene maría?
Murljashka [212]
Susana=s
maria=m

m= 3s/5 

s+m=56
s+(3s/5)=56
(5s+3s)/5=56
8s=56*5
8s=280
s=280/8
s=35

35 --->5/5
x  ---> 3/5

x= (3/5)*35 / (5/5)
x=21 
edad de maria= 21 años
4 0
3 years ago
Given : 11x – 6y = –1; x = 8
Natasha_Volkova [10]

Answer:

B. a. Given; b. Substitution Property; c. Subtraction Property of Equality; d. Division Property of Equality; e. Symmetric Property of Equality

Step-by-step explanation:

Given expression,

11x - 6y = -1; x = 8

By substituting x = 8,

11(8) - 6y = -1

88 - 6y =-1

By subtraction property of equality,

-6y = -89

Division property of equality,

y = \frac{89}{6}

By symmetric property of equality,

\frac{89}{6} = y

7 0
4 years ago
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