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geniusboy [140]
4 years ago
9

Which statement about the ordered pairs (−9, 3) and (2, −4) is true for the equation 6x−y2=14 ?

Mathematics
1 answer:
Komok [63]4 years ago
8 0
Neither ordered pair is a solution.
If you solve y^2-6y + 14 = 0 you'll see by the discriminate b^2-4ac
that it is not a perfect square, i.e = -20, so the solutions are imaginary numbers, i.e. no real solutions.
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What are the solutions to (x+7)^2=81
Kamila [148]

(x+7)^2=81\iff x+7=\pm\sqrt{81}\\\\x+7=-9\ \vee\ x+7=9\qquad\text{subtract 7 from both sides}\\\\\boxed{x=-16\ \vee\ x=2}

6 0
4 years ago
Read 2 more answers
based only on the information given in the diagram which congruence theorems or postulates could be given as reason why ABC=DEF
oksian1 [2.3K]

Answer:

HL

SAS

SSS

Step-by-step explanation:

Since these are right triangles, and you have the two hypotenuses are congruent to each other and two legs that are also congruent to each other, then HL can be applied.

For HA to work we must have been given something else about one of those angle (besides the 90 degree one).

Since you have two corresponding sides that are congruent, then the 90 degree angles in both are congruent, and then the sides right after that 90 degree angle are also congruent to each other, so SAS can be applied.

We can't use AAS.  We only know something about one angle per each triangle due to the markers.

LA? Needed another angle besides the 90 degree one.

All three corresponding sides are congruent. The markers tell us this. So we can apply SSS.

7 0
3 years ago
Which is larger .89 or .9
storchak [24]
.9 because the tenth place is 9 and the tenth place for the other one is 8 so its gonna be 
.89 < .90 = .9
7 0
3 years ago
Read 2 more answers
*ANSWER IMMINENTLY GIVING 20 POINT BRAINIEST*
grigory [225]

Answer:

Its not 20 points lol

Step-by-step explanation:

let me know when its 20 and i will answer

8 0
3 years ago
Read 2 more answers
Can someone answer this question please?
Anna007 [38]

Answer:

For more than 35 miles company A will charge less than company B

Step-by-step explanation:

Let us write the equation of the cost of each company

Company A:

∵ Company A charges $96 for unlimited mileage

∴ The cost of company A = 96

Company B:

∵ Company B charges an initial fee of $75

∵ It charges $0.6 for every mile driven

∵ The number of miles is m

- Multiply m by 0.6 and add 75 to the product

∴ The cost of company B = 75 + 0.6 m

∵ Company A will charge less than company b

∴ 96 < 75 + 0.6 m

- Subtract 75 from both sides

∴ 21 < 0.6 m

- Divide both sides by 0.6

∴ 35 < m

- That means m is greater than 35

∴ m > 35

For more than 35 miles company A will charge less than company B

7 0
4 years ago
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