Which of the following numbers is a whole number a.3/5 b.0.5 c.15% d.47

Answers

Answer 1

Answer: D....................................................................................................................

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which situation would be represented by a discrete probability distribution? a) the weight of fire fighters b) the overall average of a math class c) the ages of all the students in a class d) the number of students who could distinguish between two different soft drinks

Answers

A discrete variable is a variable which may take only certain discrete values; for example the number of people in a household is a discrete variable which may have the value 1, 2, 3, etc. but cannot have intermediate values such as 1.473 or 3.732.
Choice d) can be represented by a discrete probability distribution, the other choices cannot be so represented.

The total price of a shirt and a cap is $11. If the price of the shirt was doubled and the price of the cap was 3 times its original price, the total price of a shirt and a cap would be $25. What is the price of a shirt and a cap?A)Price of a shirt is $9, and price of a cap is $2.
B) Price of a shirt is $10, and price of a cap is $1.
C) Price of a shirt is $8, and price of a cap is $3.
D) Price of a shirt is $7, and price of a cap is $4.

Answers

Answer:

C. Price of a shirt is $8, and price of a cap is $3.

Step-by-step explanation:

Let us assume the

initial cost of each shirt = x

initial cost of each cap = y

The total price of a shirt and a cap is $11.

i.e $x+y=11$

$\Rightarrow y=11-x$ ----------------1

As the price of the shirt was doubled and the price of the cap was 3 times its original price, so

new cost of each shirt = 2x

new cost of each cap = 3y

The total price of a shirt and a cap would be $25.

i.e $2x+3y=25$ --------------2

Putting the value of y from eq 1, in eq 2

$\Rightarrow 2x+3(11-x)=25$

$\Rightarrow 2x+33-3x=25$

$\Rightarrow 2x-3x=25-33$

$\Rightarrow -x=-8$

$\Rightarrow x=8$

Putting it in eq 1,

$\Rightarrow y=11-8=3$

Therefore, price of a shirt is $8, and price of a cap is $3.

Ok got it the answer is C) 8 x 2 = 16 3 x 3 = 9
so 16 plus 9 is 25

Multiply.

1/4 x 32 =

Answers

The multiplication of the whole number (32) and fraction (1/4) is 8.

What is multiplication?

Multiplication is an arithmetic operation that combines two or more numbers to find their total or product.

It is the process of repeated addition or scaling up a number by a factor. In multiplication, the numbers being multiplied are called factors, and the result is called the product.

The given numbers to be multiplied;

1/4 x 32 =

The multiplication of the whole number (32) and fraction (1/4) is calculated as follows;

1/4 x 32 = (1 x 32 ) / 4

= 32 / 4

= 8

Thus, the multiplication of the whole number (32) and fraction (1/4) is 8.

Learn more about multiplication here: brainly.com/question/10873737

#SPJ6

simply change 1/4 to a decimal
1/4 = 0.25
now we can multiply 0.25 and 32
lets do the math:)
0.25 x 32 = 8
your answer = 8

When in doubt, eat a pineapple :)

Find the solution set of the following quadratic equations using the quadratic formula.1.) x^2 - 7x + 9 = 0
2.) 3x^2 + 10x = -3

Answers

Answer:

1) $x_1=\frac{7+√(13)}2\,,\quad x_2=\frac{7-√(13)}2$

2) $x_1=-\frac13\,,\quad x_2=-3$

Step-by-step explanation:

1)

$x^2 - 7x + 9 = 0\quad\implies\quad a=1\,,\ b = -7\,,\ c=9\n\nx=(-b\pm√(b^2-4ac))/(2a)=(-(-7)\pm√((-7)^2-4\cdot1\cdot9))/(2\cdot1)=\frac{7\pm√(49-36)}2\n\nx_1=\frac{7+√(13)}2\,,\quad x_2=\frac{7-√(13)}2$

2)

$3x^2 + 10x=-3\n\n3x^2+10x+3=0\quad\implies\quad a=3\,,\ b =10\,,\ c=3\n\nx=(-b\pm√(b^2-4ac))/(2a)=(-10\pm√(10^2-4\cdot3\cdot3))/(2\cdot3)= \frac{-10\pm√(100-36)}6\n\nx_1=\frac{-10+√(64)}6=\frac{-10+8}6=-\frac13\,,\qquad x_2=\frac{-10-8}6=-3$

A country's population in 1993 was 72 million. In 1996 it was 76 million. Estimate the population in 2003 using exponential growth.

Answers

We use the formula for exponential growth:
P = Po exp(kt)
Using the population data from 1993 to 1996, we can solve for the growth rate k
76 = 72 exp(k(3))
76/72 = exp(3k)
ln (76/72) = 3k
k = ln(76/72) / 3 = 0.0180

In 10 years (2003), the population will be:
P = Po exp(0.0180t)
P = 72 exp(0.0180(10))
P = 86.22 million

Hagrid is correct but its asking to the nearest million so it's 86 mill so just type in 86 then press enter

If an object is dropped from a height of 200 feet, the function h(t)=-16t^2=200 gives the height of the object after t seconds. Approximately, when will the object hit the ground? (1point)A.200.00 seconds
B.184.00 seconds
C.3.54 seconds
D.0.78 seconds

Answers

Hello,
Answer C
h(t)=0=-16t²+200==>t=3.53533...(s)

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