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Angelina_Jolie [31]
3 years ago
13

What is the discimiant of 9x2+2=10x?

Mathematics
2 answers:
Klio2033 [76]3 years ago
6 0

Answer: 28

Step-by-step explanation:Use the values of a b and c for the discrimiant

Marina CMI [18]3 years ago
3 0

Answer:

28

Step-by-step explanation:

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Somebody please help​
iren [92.7K]

Answer:

Yes, No, No, No

Step-by-step explanation:

To decide whether the point lies on the circle, what you need to do it simply substituting the x and y values into the equation and check if it add up to be 25

(-5)² + 0² = 25, = RHS  [Yes]

1² + (√7)² = 8, ≠ RHS [No]

(√21)² + (-3)² = 30, ≠RHS [No]

0² + 7² = 49, ≠RHS [No]

5 0
3 years ago
What is the slope and y-intercept of the equation 3(y − 2) + 6(x + 1) − 2 = 0
dangina [55]
Y=-1/2x+2/3 for m=-1/2 and b=2/3
6 0
3 years ago
You earn $20.00 per hour at your job. If you get a 10% raise at the end of each year, what will your hourly rate, h, be after 8
love history [14]
R is the rate (10%)
C=20, begiing rate
T=time=8

so

h=20(1+0.10)^8
h=20(1.1)^8
h=42.8718
ronnd

$42.87


D is answer

4 0
3 years ago
Write the number, 81.402 in expanded form using powers of ten.
stich3 [128]

Answer:

the answer is 81.402 in expanded form using the powers of ten = (8 x 10^1) + (1 x 10^0) + (4/10^1) + (0/10^2) + (2/10^3)

Step-by-step explanation:

5 0
3 years ago
PLease help me dont answer if u dont know
sdas [7]

Answer:

a_n=-8+(n-1)-7

Step-by-step explanation:

General arithmetic sequence formula: a_n=a_1+(n-1)d

where a_1 = first term, and d = common difference.

The first term is -8

And the common difference appears to be - 7 as 7 is subtracted to get to the next term. Ex. -8 - 7 = -15, -15 - 7 = - 22 and so on.

To get the explicit formula of the sequence we simply plug in the values of a1 and d the general arithmetic sequence formula

General formula: a_n=a_1+(n-1)d

We have a_1=-8 and d = -7

So the formula to find the nth term would be

a_n=-8+(n-1)-7

4 0
2 years ago
Read 2 more answers
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