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Alenkinab [10]
3 years ago
9

John has opened 8 gifts and 6 of them have been toys. What is the probability that the next gift he opens will be a toy ?

Mathematics
1 answer:
Kamila [148]3 years ago
5 0
C) 0.75. If 6/8 of the gifts were toys, that’s 3/4 which equals 75%.
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A pizza has a circumference of 12 inches. Find the exact area of the pizza. Use 13.4 for pi.
denis-greek [22]

Answer: 113.04

Step-by-step explanation:

4 0
3 years ago
I need the answer asap pls! :)
AfilCa [17]

Answer:

18m

Step-by-step explanation:

Since the given traingles are similar

We get

\frac{JK}{MN} =  \frac{KL}{ML}

\frac{JK}{42}  =  \frac{21}{49}

JK =  \frac{21 \times 42}{49}

JK =  \frac{3 \times 7 \times 6 \times 7}{7 \times 7}

JK = 3 \times 6 = 18

JK = 18

Hence the distance across river is 18m

7 0
2 years ago
In​ 2010, there were 12.4 million citizens of a certain country diagnosed with diabetes. This number of cases represents an incr
alukav5142 [94]

Answer:

3,131,313

Step-by-step explanation:

Let X represent the number of cases with diabetes in 1973.

An increase of 396% in diabetes cases in 1973 would be;

12.4 million = 396/100 × X

12.4 million = 396X/100

Cross multiply

12.4 million × 100 = 396X

X = [(12.4 million × 100) / 396]

X = 3,131,313

Therefore, the number of diabetes cases in 1973 is 3,131,313 cases

6 0
3 years ago
Stanley ordered 2 pizzas cut into eighths. if he ate 5/8 of a pizza, how much was left?
Nookie1986 [14]
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7 0
3 years ago
Read 2 more answers
Which of the following functions I which of the following functions are one to one? Select all that apply there are 3 answers
ivann1987 [24]

Answer:

The function f(x)=\frac{x-1}{3x+3} is one-to-one function ⇒ 1st

The function f(x)=\sqrt{5x+9} is one-to-one function ⇒ 2nd

The function f(x)=\frac{1}{2}x^{3} is one-to-one function ⇒ 4th

Step-by-step explanation:

* Lets explain how to solve this problem

- One to one function is the function that has no reputation in the value

 of the y-coordinates for every corresponding x-coordinates

- That means when you draw a horizontal line at any value of y, then

  the horizontal line intersects the graph of the function at one point

  only

- So to solve the problem look to the attached figures

# The red graph of the function f(x)=\frac{x-1}{3x+3} ⇒1st graph

- In this graph if we draw a horizontal line at any value of y it will

 intersect the graph at only one point

- Take care there is a horizontal asymptote at y= 1/3, that means

  there is no value of x at y = 1/3

∴ The function f(x)=\frac{x-1}{3x+3} is one-to-one function

# The blue graph of the function f(x)=\sqrt{5x+9} ⇒2nd graph

- In this graph if we draw a horizontal line at any value of y it will

 intersect the graph at only one point

∴ The function f(x)=\sqrt{5x+9} is one-to-one function

# The green graph of the function f(x)=\frac{1}{2}x^{3} ⇒3rd graph

- In this graph if we draw a horizontal line at any value of y it will

 intersect the graph at only one point

∴ The function f(x)=\frac{1}{2}x^{3} is one-to-one function

# The purple graph of the function f(x)=\frac{7}{4x^{2}} ⇒5th graph

- In this graph if we draw a horizontal line at any value of y it will

 intersect the graph at more than one point

∴ The function f(x)=\frac{7}{4x^{2}} is not one-to-one function

# The black graph of the function f(x)=3x^{4}+7x^{3} ⇒4th graph

- In this graph if we draw a horizontal line at any value of y it will

 intersect the graph at more than one point

∴ The function f(x)=3x^{4}+7x^{3} is not one-to-one function

* The answers are 1st , 2nd and 4th functions

8 0
3 years ago
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