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4 years ago

15

A card is drawn from a standard deck of 52 cards. What is the theoretical probability of drawing an eight? (Hint: A standard dec

k of cards contains 4 eights.) P(8) =

1 answer:

siniylev [52]4 years ago

3 0

LMGQEmikWJM ,Oml,himk h3iawkmJIOLKMJM gikhgWJHK MJG I

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Solve x2 – 8x = 3 by completing the square. which is the solution set of the equation

attashe74 [19]

I hope this helps you 1.x^2-8x-3=0 disctirminant =(-8)^2-4.1. (-3) disctirminant =64+12 disctirminant =76 x1,2= -b(+,-)square root of disctirminant /2a x1=-(-8)+square root of 76/2.1 x1=8+square root of 76/2 x2=8-square root of 76/2

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3 years ago

Read 2 more answers

kendra has $7.10 in nickels and quarters. if she has 143 more quarters than nickels how many of each coin does she have

Norma-Jean [14]

Answer:

Nickel = 12

Quarters = 26

Step-by-step explanation:

Given

<em>Represent Nickel with N and Quarters with Q</em>

$Q = 14 + N$ --- <em>It's 14 more quarters; not 143</em>

$Worth = \$7.10$

Required

Determine the quantity of each coin

First, we have to know that:

$0.25Q + 0.05N = 7.10$ -- (1) ---- By converting N and Q to dollars;

$Q = 14 + N$

Substitute 14 + N for Q in (1)

$0.25(14 + N) + 0.05N = 7.10$

Open Brackets

$3.5 + 0.25N + 0.05N = 7.10$

Collect Like Terms

$0.25N + 0.05N = 7.10 - 3.5$

$0.3N = 3.6$

Divide through by 0.3

$N = 3.6/0.3$

$N = 12$

Recall that:

$Q = 14 + N$

$Q = 14 + 12$

$Q = 26$

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4 years ago

your brother travelled 134 miles in 2.25 hours to come home from school break at college. What was the average speed that he was

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

It should be 499500, hope this helps!

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4 years ago

12 subtracted from a is greater than or equal to 17 as a mathematical equation

stira [4]

Answer:

$a-12\geq 17$

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3 years ago