3 years ago

Helppppppppppppppppppp

Mathematics

1 answer:

zloy xaker [14]3 years ago

6 0

Answer: T= 1 and I’m not sure if 6t = 6

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PART A: Are the triangles congruent?

wlad13 [49]

Answer: Part A: No; Part B; N/A

Step-by-step explanation:

The two triangles are not congruent because it's SSA, which doesn't work unless it's a right triangle.

4 0

3 years ago

What are the roots of x in -10x2 + 12x − 9 = 0?

hoa [83]

Answer:

$x_1=\frac{3(2+i\sqrt{6})}{10}$

$x_2=\frac{3(2-i\sqrt{6})}{10}$

Step-by-step explanation:

Use the Quadratic formula:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

You can identify that, in this case:

$a=-10\\b=12\\c=-9$

Now you need to substitute these values into the formula:

$x=\frac{-12\±\sqrt{12^2-4(-10)(-9)}}{2(-10)}$

$x=\frac{-12\±\sqrt{-216}}{-20}$

Remember that:

$i=\sqrt{-1}$

Therefore,rewriting and simplifying, you get:

$x=\frac{-12\±6i\sqrt{6}}{-20}$

$x=\frac{-6(2\±i\sqrt{6})}{-2(10)}$

$x=\frac{3(2\±i\sqrt{6})}{10}$

Then, you get the following roots:

$x_1=\frac{3(2+i\sqrt{6})}{10}$

$x_2=\frac{3(2-i\sqrt{6})}{10}$

6 0

3 years ago

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Solve equation by using the quadratic formula.<br> 2x2 + 13x = 0

Nadusha1986 [10]

THE answer is 17 because 2X2= 4+13= 17
Your Welcome :D

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3 years ago

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The next model of a sports car will cost 14.3% less than the current model. The current model costs $52,000. How much will the p

Nitella [24]

Price decrease = 14.3% of $52,000 = 0.143*$52,000 = $7,436
Price of next model = $52,000-$7,436 = $44,564

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3 years ago

Which of the following is not a solution of 3x=5y-1 a.(3,3) b.(7,4) c.(-1/3,0) d.(-2,-1)

erik [133]

3x = 5y - 1

(3,3)...not a solution
(7,4)...not a solution
(-1/3,0)...is a solution
(-2,-1)...is a solution

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3 years ago