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STALIN [3.7K]
3 years ago
9

Simify

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
4 0

Step-by-step explanation:

1. -9x - 3 - 3 + 2x

-7x - 6

3. 3 - 4x - 7x - 2

-11x - 1

4. 5x - 1 + 3 + 2x

7x + 2

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When writing a number in scientific notation, if you move the decimal point to the left 3 places, then you must _____. multiply
Naddika [18.5K]

Answer:

Multiply by 10.

Step-by-step explanation:

When writing a number in scientific notation, if you move the decimal point to the left 3 places, then you must multiply by 10.

6 0
3 years ago
Find the side lengths of each triangle ​
Levart [38]

Answer:

Step-by-step explanation:

So add the numbers on each side together

7 0
3 years ago
HELP i will give brainliest<br> all questions ;(
Rama09 [41]

Answer:

<u>1. The theoretical probability of rolling an even number and flipping heads is 25%.</u>

<u>2. The experimental probability of rolling a 1 and flipping tails is 15%.</u>

<u>3. The experimental probability of flipping heads is 40%.</u>

<u>4. I think around 7%.</u>

<u>5. I would expect to roll 3 and land on heads 8 times.</u>

Step-by-step explanation:

I am not sure about number 4.

Have a nice day!

Ask me if you need my work. :-)

8 0
3 years ago
The formula for electrical energy, P, is P = I2R, where I is current and R is resistance. The formula for I in terms of P and R
nydimaria [60]

Answer:

i =   \sqrt{ \frac{p}{r} }

6 0
3 years ago
A Nevada roulette wheel had 38 pockets, labeled as 0 00 1 2 3 ... 35 36. One bet is single number. If you bet $1 on a number (an
slavikrds [6]

Answer:

-0.0526

Step-by-step explanation:

Let X be the random variable denoting the net gain(in dollars) for a single trial(one bet).

Assuming that each number in the wheel is equally likely, probability of the outcome being a victory is \frac{1}{38} and probability of failure is \frac{37}{38}. For a win, X takes value 35 and for a loss X takes value -1. So the model is,

P(X=35) = \frac{1}{38}

P(X=-1) = \frac{37}{38}

P(X=i) = 0 \;if\; i \neq 38, i\neq -1

The mean for one bet is E(X) = \sum xP(X=x) = 35\times\frac{1}{38} - 1\times\frac{37}{38} = -0.0526

3 0
3 years ago
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