A psychologist is studying how children acquire math skills. She gives the same question to children
at different ages and records the results.
Math Skills By Age in Years
2
3
4
Correct
3
6
11
Incorrect
16
12
5
What is the approximate probability that a child got the question correct given that they are 2?

Answer: 10 should have one dot, 14 should have one, 15 should have two, 16 should have one, 17 should have three, 18 should have one, and 20 should have one

Step-by-step explanation: count how many certain numbers there are and then place how ever many of the same number there are with dots on the graph

Answer:

x = 4

y = 11

Step-by-step explanation:

Set  your formula as follow:

2x+3=3x-1 -> 2x+3-3x=-1  -> -x+3 = -1 -> -x=-4 -> x=4

now substitute x for 4 in the following

y-2=2(4)+1 -> y-2=8+1 ->y-2 = 9y -> y=11

Answer:

x= 4

y+11

Step-by-step explanation:

Answer: Im pretty sure its 1

Step-by-step explanation:

Because 11 is the only alternate exterior angle

Answer:

(x + 7) = 41

Step-by-step explanation:

Let the number of lions in the wildlife reserve = x

Since, 7 lion cubs were born, so the total number of lions in the wildlife reserve will be (x + 7)

Now total number of lions = 41

Therefore, equation representing this situation will be,

(x + 7) = 41

Answer: Booinggg

Step-by-step explanation:

Answer:

480

please mark brainliest

Answer:

hmmmm if theres choices its B

Answer:

13/50

Step-by-step explanation:

The probability is 13/50.

Answer:

9/25 on odyssey

Step-by-step explanation:

Answer: 72$

Step-by-step explanation:

because

Step-by-step explanation:

your answer would be 685 that's your answer

Answer:

dont mind me im just trying get points, since this question already got answered. :)

Step-by-step explanation:

Answer:

[tex]\$843.67[/tex]

Step-by-step explanation:

Let's break the price changes down:

Initial price: $896

On sale for 12%, meaning the computer will be 100-12=88% of the original price:

New sale price [tex]\implies896\cdot 0.88=\$788.48[/tex]

Now a 7% tax is added to this, meaning the final price will be 107% of this new sale price.

Final price [tex]\implies 788.48\cdot 1.07\approx \boxed{\$843.67}[/tex]

Answer:

d ≈ 15.8

Step-by-step explanation:

Answer: Are you asking for slope?

Step-by-step explanation:

8-0 = 8

7-(-8) = 15

8/15

Answer: 25??

Step-by-step explanation: $8×25= $200

i dont know if thats your answer thats just all the adults that could get in for $200.

-Zoey Lee

the answer is 1

as the formula is:

m= -coefficient of x / coefficient of y

where coefficient of x is 1 and coefficient of y is -1

Answer:

Ok look i dont know but

Step-by-step explanation:

if you like this i will gift you a prize.

Answer:

[tex]\huge\boxed{Answer\hookleftarrow}[/tex]

Number of people in the U.S Army = Five hundred seventy-one thousand, one hundred eight people

Number in standard form = 571,108

Answer:

complementary angles are sum up to 180°

68.8+x=180°

68.8 complementary angle is 111.2

Answer:

Step-by-step explanation:

The required simplified value of the expression 150/8 is 18.75. Option D is correct.

To simplify the expression 150/8, using arithmetic operations,

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,

Here,
To simplify 150 / 8 as where "/" is the division operator,
So,
150 / 8 = 18.75

Thus, the required simplified value of the expression 150/8 is 18.75. Option D is correct.

Learn more about arithmetic here:

https://brainly.com/question/11424589

#SPJ2

Answer:

120 different outcomes

Step-by-step explanation:

Selecting a year in the last decade ; this means selecting a year from from the last decade :

Number of years jn decade = 10

Selecting a month of the year : number of months in a year = 12

Hence, we have :

10 * 12 = 120 different outcomes

Answer:

[tex]\huge\boxed{A=6x^2-11x+3;\ \text{for}\ x>1.5}[/tex]

Step-by-step explanation:

The formula of an area of a rectangle:

[tex]A=a\cdot b\\\\a,\ b-\text{sides of a rectangle}[/tex]

We have:

[tex]a=2x-3\\b=3x-1[/tex]

The domain:

[tex]2x-3>0\ \wedge\ 3x-1>0\\\\2x-3+3>0+3\ \wedge\ 3x-1+1>0+1\\\\2x>3\ \wedge\ 3x>1\\\\\dfrac{2x}{2}>\dfrac{3}{2}\ \wedge\ \dfrac{3x}{3}>\dfrac{1}{3}\\\\x>1.5\ \wedge\ x>\dfrac{1}{3}\Rightarrow\boxed{x>1.5}[/tex]

Substitute:

[tex]A=(2x-3)(3x-1)[/tex]

use FOIL: (a + b)(c + d) = ac + ad + bc + bd

[tex]A= (2x)(3x)+(2x)(-1)+(-3)(3x)+(-3)(-1)\\\\A=6x^2-2x-9x+3[/tex]

combine like terms

[tex]A= 6x^2+(-2x-9x)+3\\\\A=6x^2-11x+3[/tex]

Answer:

6x² - 11x + 3

Step-by-step explanation:

To find the area of a rectangle, we multiply the length by the width.

A = l • w

length: 2x-3

width: 3x-1

A = (2x-3) • (3x-1)

To multiply these two binomials, we must FOIL (first | outer | inner | last) them.

F: 2x • 3x = 6x²

O: 2x • -1 = -2x

I: -3 • 3x = -9x

L: -3 • -1 = 3

Combine the terms.

6x² - 2x - 9x + 3

Combine like terms.

6x² - 11x + 3

This is your area.

Hope this helps!

===========================================================

Explanation:

The only prime number of the list of values given is the value 13. This is because the only factors are 1 and 13. Something like 24 isn't prime because 2 is a factor.

The probability of rolling to get a prime number is 1/6 because there is one prime out of 6 total values listed.

The probability of spinning on "G" is also 1/6 because there is only one section labeled "G" out of 6 sections total.

Assuming both events are independent, we multiply the probabilities to get (1/6)*(1/6) = 1/36 which represents the probability of rolling a prime number and spinning on G.

Side note: 1/36 = 0.0278 = 2.78% approximately

Answer:

8 km

Step-by-step explanation:

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

the scale drawing is usually reduced at a constant dimension

scale of the drawing = original dimensions / dimensions of the scale drawing

40 / 5 = 8km

Answer:

15, 80

Step-by-step explanation:

1) I am assuming the first picture is a 90 degree angle total, because the question can't be solved without that assumption.

  90 - 75 = 15

  x = 15

2) The whole angle is 180 so 180 - 75 - 25 = CAD

  CAD = 80

Answer:

15° and 80°

Step-by-step explanation:

for the first one since its a right angle then its equal to 90 degrees

90-75 = 15     x=15°

for the second one since the line is a straight line then put it equal to 180

25+75+x=180

100+x=180

x=80°      

Answer:

8

Step-by-step explanation:

so basically if the tenth is 5 and or up you round up

if  it is lower then 5 you round down.

Answer:

answer: 300

Step-by-step explanation:

the area of the parellologram is found just by doing base × height! So our base is 20 and our height is 15 so now that we know our base and height. all we have to do is multiply them so

20 x 15 = 300 so 300 is our answer! Hope that helps you!

Answer:

3/25

Step-by-step explanation:

#2: formula: V = (3.14) x radius (1/2 diameter) and height over 3

Answer is A

#3: Answer is 314.159 which rounds up to 314.160

Step by Step: easy

Answer:

It is false, the sine function represents the y-coordinate while the cosine function represents the x-coordinate