A jar contains jelly beans that are red, yellow, blue, and purple. Several people reach in and grab handfuls of jelly beans, then collectively tally the number of each color: 15 red, 20 yellow, 12 blue, and 8 purple. If someone pulls out 22 jelly beans, about how many would you expect to be yellow?A.4
B.20
C.13
D.8

Answers

Answer 1

Answer: Total jellybeans pulled out: 15 + 20 + 12 + 8 = 55

Proportion of yellow jellybeans: 20 / 55 = 4/11

(4/11) * 22 = 8.

Answer: 8

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Explain how your brain and sensory organs get information from the outside world

Answers

Your brain has about 100 billion neurons, all of which are interneurons. Each of these neurons may receive up to 10,000 messages from other neurons and may send messages to about 1,000 more. Every day, billions of nerve impulses travel through your nervous system from neuron to other neurons or body structures. The place where a neuron transfers an impulse to another structure is called a synapse. At the axon tips, electrical signals carried through the neuron change into a chemical form. This change allows the message to cross the gap. The message then continues in electrical from through the next neuron.

How do you answer this?

Answers

$(m^(-2))^5=m^(-2\cdot5)=m^(-10)$

$x^2+3x-10=\nx^2+5x-2x-10=\nx(x+5)-2(x+5)=\n(x-2)(x+5)$

(m*-2)*5 simplifies to m*-10.

This is because when you have a number with an exponent to an exponent, you multiply the exponents.

Select the direction that this parabola opens.y=-x^2/20

A) up
B) down
C) left
D) right

Answers

Answer:

the parabola opens down

Step-by-step explanation:

Select the direction that this parabola opens.

y=-x^2/20

$y=(-x^2)/(20)$

To find the direction of the parabola y=ax^2 +bx+c ,we need to consider the value of 'a'

If 'a' is positive then the parabola opens up

If 'a' is negative then the parabola opens down

from the given equation

$y=(-x^2)/(20)$

The value of a=-1 which is negative

so the parabola opens down

Hello,
x² 's coefficient is <0 ==> parabola opens down.

Answer B

1. -(p - 5) = -5 - 7(p + 2)
2.7(r - 8) = -2(r + 1)

Answers

Answer:

1. p = -4

2. r = 6

Step-by-stepexplanation:

you deposit 1000 in savings account that earns .5% each month assuming you do not deposit or withdraw any money from the account, how much will you have in the account after 3 years

Answers

Answer:

$1015.11

Step-by-step explanation:

Compounded interest rate formula: A = P(1 + r/n)^t

Step 1: Plug in known variables

A = 1000(1 + 0.005/12)^36

Step 2: Multiply it all together

1000(1.00042)^36

1000(1.01511)

1015.11

This is a pretty bad bank considering only giving you .5% interest per month.

A type of number that includes rational and irrational numbers is ____

Answers

Answer:

Real number

Step-by-step explanation:

Those are the Real numbers.

Real numbers (R) are the conjoint of Rational Numbers (Q) - those than can be written as a fraction, e.g., 4/3, 80/456, etc. - and Irrational Numbers (I) - those that CAN'T be represented by a fraction, e.g., pi number.

So R = Q ∪ I

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At noon, train A leaves Bridgton headingeast at 90 mi/h to Cogsville. At 12:30 PM,train B leaves Bridgton and heads east at100 mi/h. At what time will train B catchup to train A?

Which event is considered neither likely nor unlikely?A. rolling a number greater than one on a six-sided number cubeB. rolling a 1 on a six-sided number cubeC. getting heads when flipping a coinD. choosing a X, Y, or Z from a bag containing all letters in the alphabet