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3 years ago

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While at the pet store, Fred counted the number of animals in the store. For every 3 dogs in the store, there were 4 cats. Ident

ify the equivalent ratios of dogs to cats. Select two that apply.

1 answer:

Mamont248 [21]3 years ago

8 0

Answer:

I need the answers on the question to answer this. Once you edit I will give you an actual answer.

Step-by-step explanation:

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Consider testing batteries coming off an assembly line one by one until one having a voltage within prescribed limits is found.

sleet_krkn [62]

It's clear enough that

$\mathbb P(E_i)=\mathbb P(i=j)=\begin{cases}0.99&\text{for }j=1\\0.01\times0.99&\text{for }j=2\\0.01^2\times0.99&\text{for }j=3\\\vdots\end{cases}$

Because each of the $E_i$ are disjoint, it follows that

$\displaystyle\mathbb P(\text{sample space})=\mathbb P(E_1\cup E_2\cup\cdots)=\mathbb P\left(\bigcup_{i=1}^\infty E_i\right)=\sum_{i=1}^\infty\mathbb P(E_i)$
$=0.99+0.01\times0.99+0.01^2\times0.99+\cdots$
$=0.99(1+0.01+0.01^2+\cdots)$
$=0.99\displaystyle\sum_{n=0}^\infty 0.01^n$
$=0.99\times\dfrac1{1-0.01}$
$=\dfrac{0.99}{0.99}=1$

5 0

3 years ago

Please answer this in two minutes

diamong [38]

Answer:

366.6 mm²

Step-by-step explanation:

Step 1: find XY using the Law of sines.

Thus,

$\frac{XY}{sin(W)} = \frac{WY}{sin(X)}$

m < W = 180 - (70+43) (sum of angles in a triangle)

W = 180 - 113 = 67°

WY = 24 mm

X = 43°

XY = ?

$\frac{XY}{sin(67)} = \frac{24}{sin(43)}$

Cross multiply:

$XY*sin(43) = 24*sin(67)$

$XY*0.68 = 24*0.92$

Divide both sides by 0.68 to solve for XY

$\frac{XY*0.68}{0.68} = \frac{24*0.92}{0.68}$

$XY = 32.47$

XY ≈ 32.5 mm

Step 2: find the area using the formula, ½*XY*WY*sin(Y).

Area = ½*32.5*24*sin(70)

Area = ½*32.5*24*0.94

= 32.5*12*0.94

Area = 366.6 mm² (nearest tenth)

6 0

3 years ago

Alona [7]

The speed of current will be "4.5 mph" and the rate Pratap can row in still water will be "8.5 mph".

What does "speed" mean in mathematics?

Speed is what it means. the speed of a change in an object's location in any direction.
Speed is defined as the ratio of distance to the amount of time it took to cover that distance.
Speed is a scalar quantity because it just has a direction and no magnitude.

Given:

Distance "26 miles" in time "2 hours".

Let,

Speed of water = y

Pratap speed when rowing in still water = x

As we know,

Speed = distance/time

then,

x + y = 26/2

x + y = 13

x = 13 - y

In return trip took him time "6.5 hours",

x - y = 26/6.5

x - y = 4

By substituting the value of "x", we get

13 - y - y = 4

13 - 2y = 4

2y = 13 - 4

2y = 9

y = 9/4 = 4.5 mph (Rate of the current)

By substituting the value of "y", we get

x = 13 - a

x = 13 - 4. 5 = 8.5 mph (Pratap can row in still water)

Learn more about speed

brainly.com/question/28224010

#SPJ13

4 0

2 years ago

What is the definition of addition

Katen [24]

Answer:

the difinition of addition is adding two things together

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Betty has a bag with 20 marbles in it. Some of the marbles are blue, some are green, and some are yellow.

Nezavi [6.7K]

392 / 500 double and take one decimal place to see percentage

52/500

56/500 e.g. 56*2 = 112 now take 1 decimal so it is 11.2%

now divide each by 20

5 0

3 years ago

Read 2 more answers