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3 years ago

Why isnt brainly working?

Mathematics

2 answers:

Ierofanga [76]3 years ago

6 0

Answer:

<h2><em><u>What do you mean? its working perfectly fine.</u></em></h2>

Dovator [93]3 years ago

5 0

I completely agree wit

You might be interested in

Find the zeros of y= x - 4x - 9 by completing the square.

Paraphin [41]

The zeros for the given equation are A. $x = {2 \pm \sqrt{13}}.$

Step-by-step explanation:

Step 1:

To solve for x in a polynomial equation, we use the formula

$x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}.$

Here a is the coefficient of $x^{2}$ , b is the coefficient of $x$ and c is the coefficient of the constant term.

In the given equation, $a = 1, b = -4, c = -9$ .

Step 2:

Substituting the values of a, b, and c in the equation, we get

$x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a} =\frac{-(-4) \pm \sqrt{(-4)^{2}-4 (1)(-9)}}{2 (1)} = \frac{4 \pm \sqrt{(16+36}}{2 }.$

$\frac{4 \pm \sqrt{(16+36}}{2 } = \frac{4 \pm \sqrt{(52}}{2 } = \frac{4 \pm2 \sqrt{(13}}{2 }= {2 \pm \sqrt{13}}.$

So the answer is option A. $x = {2 \pm \sqrt{13}}.$

3 0

4 years ago

A coin is tossed 10 times. given that the first 9 tosses were heads, find the percent chance of getting 10 heads in a row?

Olin [163]

Answer:

1/2

Step-by-step explanation:

Assume the coin is a fair coin.

Since we already know that the first 9 tosses were heads, the probability of 9 straight heads in the first 9 tosses is 1.

It all depends on the last toss. There is an equal probability of heads and tails in a single toss of a fair coin.

p(heads) = 1/2

p(10 heads) = 1/2

3 0

2 years ago

Read 2 more answers

Can someone help me

Komok [63]

$114.6 \times .066 = 7.5636 \\ 8$
I'm not sure if this is right. I didn't feel confident with my answer.

6 0

3 years ago

Help me please thank you

Dmitrij [34]

Answer in attachment.

3 0

3 years ago

PLEASE ANSWER IVE BEEN WAITING FOR AN HOUR

Crazy boy [7]

192 times 5 Equals 960 sprinkles

8 0

3 years ago

Read 2 more answers