MATHEMATICS MIDDLE SCHOOL

What is the value of the function y=2x+3 when x = –1?A.
5

B.
–5

C.
2

D.
1

Answers

Answer 1
Answer: y = 2x + 3
y = 2(-1) + 3
y = -2 + 3
y = 1

Answer: 1 or D
Answer 2
Answer: y(-1)=2\cdot(-1)+3=-2+3=1

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The output of a function table is 4 less than the input Angela says the function rule is x-4=y. Kara says the rule is 4-x=y who is correct?
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james has a card collection with 64 basketball cards, 32 football cards, and 24 baseball cards. he wants to arrange the cards in equal piles, with only one type of card in each pile. How many can he put in each pile?

Answers

64+32=96
96+24=120
120÷3=40
Lee can put 40 cards in each pile.
Your final answer is 40.

Write each number in standard form 8,000,000+300+9

Answers

eight million plus three hundred plus nine
Eight million plus three hundred plus nine

What is 1/3 of the area of a rectangle?

Answers


-- The area of a rectangle is                     (length) · (width) .

-- 1/3 of the area of a rectangle is  (1/3) · (length) · (width) .

HELP PLEASE in two or more complete sentences, describe how to graph the following equation.In your description, include the slope and both the - and -intercepts of the line. y =2

Answers

The method to graph the equation of line is given as below.

What is the Equation of the line in Slope-Intercept form?

Equation of a line in slope-intercept form is y = mx + b, where m is the slope of the line and b is the y-intercept, which is the y-coordinate of the point where it touches the y-axis.

y = 2

Slope intercept form of the line is y = 0x + 2

That is, slope is 0.

Slope is the tangent of the angle that the line makes with the x-axis.

Since, slope is 0, tan (angle) = 0, then the angle making with x-axis = 0

So the line y = 2 will be a line parallel to the x-axis passing through the point y = 2.

The line will not touch the x-axis, so no x-intercept and y-intercept = 2.

Hence, the graph of the line is described.

Learn more about Graphing of the Lines at:

brainly.com/question/30915765

Answer:

Step-by-step explanation:

Graphing the equation y = 2 is straightforward because it represents a horizontal line. The slope of this line is zero because it doesn't have a changing y-value for any x-value. To graph it, you can draw a horizontal line that crosses the y-axis at y = 2. There are no x-intercepts because the line never crosses the x-axis since it's parallel to it. So, the graph is a straight horizontal line that intersects the y-axis at (0, 2).

An adventure game has a number cube with 12 equal-size faces: some labeled with 1, some labeled with 2, and some labeled with 3. The game manufacturer tests the cube by rolling it 12, then 120, and then 1200 times.What is the best estimate of the number of faces labeled with 2?



Outcome Number of trials
12 120 1200
1 5 67 617
2 6 48 394
3 1 5 189













A.

1






B.

2






C.

4






D.

6

Answers

The best estimate is 4 because there are 3 different numbers on a 12 sided die and 12 / 3 = 4.

For the wheel picture on the right assume that a person spins the pointer and is awarded the amount indicated by the pointer. If it costs $5 to play the game determine (a) the expectation of a person who plays the game and (b) the fair price to play the game. a. what is the expectation? $ ___​

Answers

The expectation to play the game is $2.5 and the fair price to play is $7.5.

What is the expectation?

The expectation is defined as the weighted average value of the random variable which is the product of the value of the random variable and its possibility.

Expectation= ∑P(win)*amount of win or loss of random variable

=∑x*P(x)

Here given that there are only two possible outcomes $5 and $10. And the possibility of every outcome is the same which is 0.5 as they occupy the same area.

As we know

Expectation= ∑P(win)*amount of win or loss of random variable

= 0.5(5-5) +0.5(10-5)

=0.5*0 + 0.5*5

=0+2.5

=$2.5

As fair price= expectation + cost of play

⇒fair price= $2.5 + $5

⇒fair price= $7.5

Therefore the expectation to play the game is $2.5 and the fair price to play is $7.5.

Learn more about expectation

here: brainly.com/question/10675141

#SPJ2

Answer:

(a)

(b)

Step-by-step explanation:

First pic is a second is b
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