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3 years ago

I need help with b. I am having a brain fart and forgot how to do this!

Mathematics

1 answer:

alexgriva [62]3 years ago

3 0

Answer:

Step-by-step explanation:

There are 80 black squares in A. The % is 80/100 or 80%

There are 12 1/2 black squares in B. The % is 12 1/2 % black

There are 10 black squares in C The % is 10% black

This is a really bad question. We are not told which to represent, white or black.

A: 20% white

B: 87 1/2% white

C: 90% white

I'm going to leave the second part because I don't know which way is wanted.

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Helppp ill mark u as brainlist

8090 [49]

Answer:

The word technology definition in the article was an advanced electronic, like AI for example. hope that helps leave i comment if i need to fix my answer!

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3 years ago

Use the parabola tool to graph the quadratic function f(x)=−12x2+7. Graph the parabola by first plotting its vertex and then plo

Fudgin [204]

First we find the vertex of parabola $f(x)=-12 x^{2} +7$

The vertex of parabola is $( \frac{-b}{2a},f( \frac{-b}{2a}))$
Here,
b = coefficient of x term
a = coefficient of x² term

For given parabola, b = 0 , a = -12

So,
$\frac{-b}{2a}= \frac{0}{-24} =0$

And,

$f( \frac{-b}{2a} )=f(0) = -12(0)+7=7$

Thus the vertex of parabola is (0, 7)

To find another point on parabola, substitute x by 1.

$f(1)=-12( 1^{2}) +7=-12+7=-5$

So the second point on parabola is (1,-5)

The plot of parabola is shown in image below:

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3 years ago

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Can a pair of lines be both parallel and perpendicular? explain

alina1380 [7]

No, the 2 lines can never ever be both parallel and perpendicular if I'm not mistaken. This is because a set of parallel lines will never touch each other at all. However perpendicular lines are two lines that meet up to get an angle of 90. You cannot have two lines that never touch and touch at the same time.

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3 years ago

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Write the two conditional statements that make up the following biconditional.

Yuri [45]

The correct answer is A. <span>If I drink juice, then it is breakfast time.
If it is breakfast time, then I drink juice.

This answer is an if-and-only-if conditional statement.
The other options are not.</span>

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Andreas93 [3]

It would be graph B because it is the only one that is close to it.

If i'm wrong it is ok with me

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2 years ago

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I need help with b. I am having a brain fart and forgot how to do this!​

I need help with b. I am having a brain fart and forgot how to do this!