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3 years ago

Which of the following cannot be used in proving triangles congruence

Mathematics

2 answers:

iragen [17]3 years ago

8 0

I can not see the problem.

Margarita [4]3 years ago

5 0

SSA Postulate; this postulate is not a theorem.

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Whats the vertex form of y=x^2-20x+15

Sveta_85 [38]

This looks like a parabola so:
y=x^2 - 20x + 15 --> x^2 - 20x +15=y
(x^2 -20x)=y - 15 --> (x - 10)^2=y - 15 +100 ( used complete the square)
(x - 10)^2=y + 85

6 0

3 years ago

The height of a ball above the ground as a function of time is given by the function h(t)=−32t2+8t+3 where h is the height of th

gavmur [86]

Answer:

0.125 seconds.

Step-by-step explanation:

We have been given that the height of a ball above the ground as a function of time is given by the function $h(t)=-32t^2+8t+3$ , where h is the height of the ball in feet and t is the time in seconds.

We can see that our given equation is a downward opening parabola as its leading coefficient is negative. The maximum point will be vertex of parabola.

To find the time, when the ball would be at its maximum height, we need to find the x-coordinate of vertex.

Using formula $\frac{-b}{2a}$ , we will find the x-coordinate of vertex of parabola as:

$\frac{-b}{2a}$

$\frac{-8}{2*-32}$

$\frac{-8}{-64}$

$\frac{1}{8}$

$0.125$

Therefore, the ball will be at a maximum height after 0.125 seconds.

6 0

3 years ago

Which is the real world situation that can be described by a linear inequality

garik1379 [7]

Answer:

Pretty sure it's B

Step-by-step explanation:

Everything else would be more like an equation. I think B is the only inequality.

7 0

3 years ago

Round to the nearest 10 and hundred

Westkost [7]

To rock to the nearest ten and hundred if his 15 or of your round on time if it's less you round down same with the hundreds like if it's 150 rooms and it's all so different with decimals

7 0

3 years ago

57.8 divided by 81 but estimate the divisor and divided

NeTakaya

Answer:

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers