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4 years ago

You randomly select a card from a 52-card deck. Find the probability of selecting a 7 or an Ace.

Mathematics

2 answers:

pochemuha4 years ago

7 0

<h3>Answer: 2/13</h3>

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Explanation:

There are four cards labeled "7", and four cards that are aces. We have 4+4 = 8 cards that we want to find. This is out of 52 total.

The probability we're after is 8/52 = (4*2)/(4*13) = 2/13

2/13 = 0.1538 = 15.38% approximately

erik [133]4 years ago

6 0

Answer:

15.38%

Step-by-step explanation:

There are 4 7's in a deck of 52 cards.

There are 4 Aces in a deck of 52 cards.

4+4 = 8

8/52, or 15.38%

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Which exponential expression is equal to 2−5·28

gizmo_the_mogwai [7]

Answer:

Impossible

Step-by-step explanation:

Solve the answer 2-5*28 = -138

This would have no answer since an exponential expression can't equal an negative unless it's a negative answer, but in this case, there is no answer that would get you -138.

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3 years ago

Find an equation for the graph below

RoseWind [281]

Answer:

y=4/5x-0.8

Step-by-step explanation:

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3 years ago

A cylinder has diameter 34 m and height 27 m. A label at bottom states drawing not to scale.

Blababa [14]

Answer:

Therefore,

Volume of the cylinder is 24501.42 m³.

Step-by-step explanation:

Given:

Height of Cylinder = 27 m

Diameter, d = 34 m

$Radius = \dfrac{d}{2}=\dfrac{34}{2}=17\ m$

Volume of a Cylinder = ?

Solution:

We know that

$\textrm{Volume of a Cylinder}=\pi (Radius)^{2}\times Height$

Substituting the given values in formula we get

$\textrm{Volume of a Cylinder}=3.14 (17)^{2}\times 27=24501.42\ m^{3}$

Therefore,

Volume of the cylinder is 24501.42 m³.

7 0

4 years ago

Indicate the equation of the given line in standard form, in the equation box below.

Illusion [34]

Perpendicular lines have slopes that are negative reciprocals of each other, so the equation of the line in point-slope form is:

$y-4=-\frac{5}{2}(x+3)$

Rewriting this in standard form,

$2y-8=-5(x+3) \\ \\ 2y-8=-5x-15 \\ \\ \boxed{5x+2y=-7}$

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3 years ago

The Johnson family drove 52 miles on 4 gallons of gasoline. Which of the following equations can be used to find how far they ca

djverab [1.8K]

Answer:

y = 13x

Step-by-step explanation:

First we need to take the number miles the Johnson family drove and divide it to the number of gallons of gasoline used to find how many miles per gallon

Miles per gallon = 52/4

Miles per gallon = 13

Now that we know how many miles per gallon, let's make an equation to find how much they can travel on a full tank of 15 gallons.

Let y = number of miles traveled

Let x = number of gallons

y = 13x

Now let's see how much they can travel in 15 gallons.

y = 13x

y = 13(15)

y = 195 miles

So the Johnson family can drive 195 miles on a full tank of 15 gallons of gasoline.

3 0

4 years ago

You randomly select a card from a 52-card deck. Find the probability of selecting a 7 or an Ace.​

You randomly select a card from a 52-card deck. Find the probability of selecting a 7 or an Ace.