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3 years ago

Two

Mathematics

1 answer:

Vlad1618 [11]3 years ago

4 0

Answer:

Step-by-step explanation:

If you flip coins, you can get,

HT TH HH TT

There are 4 possible outcomes.

Out of these 4, Matt has to do chores if two heads are flipped. It is 1/4 chance.

Out of these 4, Mark has to do chores if two tails are flipped. Again, 1/4 chance.

The method of decision is far since both guys have the same chance of being picked to do chores.

To flip again, they would have to get either HT or TH out of the 4 choices. So 2/4=1/2 is the likeihood they must flip again.

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Perform the indicated operation. (12x2 + 7y3)(4x2 + 7y3)

Verdich [7]

ANSWER

$48 {x}^{4} + 60{x}^{2} {y}^{3} + 56 {y}^{6}$

EXPLANATION

We want expand:

$(12x^2+8y^3)(4x^2+7y^3)$

We expand using the distributive to obtain:

$12 {x}^{2} (4 {x}^{2} + 7 {y}^{3} ) + 8 {y}^{3} (4 {x}^{2} + 7 {y}^{3} )$

$48 {x}^{4} + 28 {x}^{2} {y}^{3} + 32{x}^{2} {y}^{3} + 56 {y}^{6}$

Simplify further by combining the two terms in the middle:

$48 {x}^{4} + 60{x}^{2} {y}^{3} + 56 {y}^{6}$

4 0

4 years ago

Read 2 more answers

Write the place value of each underlined digit in the numbers below:

sladkih [1.3K]

<h3>♫ :::::::::::::::::::::::::::::: // Hello There ! // :::::::::::::::::::::::::::::: ♫</h3>

➷ I believe saying the number out loud will help

'three hundred and forty nine'

The '4' represents 40

In place value, 40 would hold the 'tens' place

Thus, the place value is 'tens'

➶ Hope This Helps You!

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8 0

4 years ago

A human resources office is working to implement an increase in starting salaries for new

ELEN [110]

Answer:

Step-by-step explanation :

Let % increase in administrative secretary be = x

Let % increase in new faculty receive be = y

Administrative secretary salary = 28,000

New faculty receive Salary = 40,000

(8)*(x/100)* (28000) + (7)*(y/100)*(40000) = 5,000

2240x +2800 y = 5,000

224x +280 y = 500

56x +70y = 125

Therefore, x and y should be chosen such that it satisfy the above equation.

3 0

3 years ago

Which of these expressions has the same value as the expression in the box? 10+3?

Reika [66]

Answer:

7+6, 5+8 , 4+9

Step-by-step explanation:

they all make 13

5 0

3 years ago

Write an equation of the line in slope-intercept form that is perpendicular to this line and has a y-intercept of 9.

gregori [183]

Answer:

(0,9) for y-intercept

perp.: (-1/2)= m

y - 9 = (-1/2)x - 0

y = (-1/2)x + 9

Step-by-step explanation:

8 0

3 years ago