All categories

3 years ago

I need help with 1-9 plz I still don’t I understand fractions multiply

Mathematics

1 answer:

NikAS [45]3 years ago

7 0

For the bottom part of 3) 2/5 times 2/2 would equal 4/10

You might be interested in

Suppose 2 quarters, 3 dimes, 3 nickels, and 9 pennies are in a box. One coin is selected at random. What is the expected value o

Hoochie [10]

Answer:

Given that,

Suppose 2 quarters, 3 dimes, 3 nickels, and 9 pennies are in a box.

One coin is selected at random.

To find the expected value of the money drawn from the box.

we get,

Total number of coins is 2+3+3+9=17

Probability of getting quarter is,

$\frac{2}{17}$

Probability of getting dime is,

$\frac{3}{17}$

Probability of getting nickel is,

$\frac{3}{17}$

Probability of getting penny is,

$\frac{9}{17}$

we know that,

$\begin{gathered} 1\text{ quarter}=0.25\text{ dollars} \\ 1\text{ dime}=0.1\text{ dollars} \\ 1\text{ nickel}=0.05\text{ dollars} \\ 1\text{ penny}=0.01\text{ dollars} \end{gathered}$

Using this, we get

The expected value of the money drawn from the box is,

$=(0.25)\times\frac{2}{17}+(0.1)\times\frac{3}{17}+(0.05)\times\frac{3}{17}+(0.01)\times\frac{9}{17}$ $=\frac{0.5}{17}+\frac{0.3}{17}+\frac{0.15}{17}+\frac{0.09}{17}$ $=\frac{1.04}{17}\approx0.06117\text{ dollars}$

8 0

2 years ago

What is the value of f(15) for the given function? What does this value mean in the context of the situation you described in pa

bija089 [108]

Answer:

$f(15)=525\ ft^{2}$

f(15) is the area of the rectangular garden for a width of 15 ft

Step-by-step explanation:

we know that

$f(x)=x(2x+5)$

where

x----> is the width of the rectangular garden

(2x+5) ----> is the length of the rectangular garden

f(15) -----> is the value of f(x) for x=15 ft

That means

f(15) is the area of the rectangular garden for a width of 15 ft

substitute the value of x and solve

$f(15)=15(2(15)+5)$

$f(15)=525\ ft^{2}$

7 0

3 years ago

A straight line inserted at the origin terminates at the point (6, 7) as it sweeps out an angle θ in standard position. Which of

ELEN [110]

Since the line stops at the point (6, 7), then it means that the height of the triangle made is 7 units and the base is 6 units long.
An angle, θ, is made at the line that joins the origin and the point (6, 7).

$tan \theta = \frac{opp}{adj}$
$tan \theta = \frac{height}{base} = \frac{7}{6}$

Hence, $tan \theta = \frac{7}{6}$