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IrinaVladis [17]
2 years ago
13

A shipment contains 9 igneous, 7 sedimentary, and 7 metamorphic rocks. If 7 rocks are selected at random, find the probability t

hat exactly 5 are sedimentary.
Mathematics
1 answer:
yKpoI14uk [10]2 years ago
7 0

Answer:

75 percent

Step-by-step explanation:

see the thing is

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One factor of 7x2 + 33x – 10 is
stiv31 [10]

7x^{2} +33x-10=0

\implies 7x^{2} +35x-2x-10=0\\\implies7x(x+5)-2(x+5)=0\\\implies (7x-2)(x+5)=0

7x - 2 = 0\\\implies \boxed{\bold{x = \frac{2}{7} }}

x+5=0\\\implies \boxed{\bold{x=-5}}

6 0
2 years ago
A) Complete the table of values for y = 6 - 2x
GREYUIT [131]

Step-by-step explanation:

the answer as shown in the photo

3 0
2 years ago
GIVING BRAINLIEST FOR BEST ANSWER!
Nataly_w [17]
The answer to the question is C.
5 0
2 years ago
Read 2 more answers
The total cost of owning a home for 6 years is $120,000. The
Agata [3.3K]

After 6 years, the difference between owning the house and renting is $12,000.

<h3>What is the difference in owing and renting the house?</h3>

The first step is to determine the total cost of renting the house for six years.

Total cost of renting the house = rent per month x number of years x number of months in a year

1500 x 12 x 6 = $108,000

Difference = cost of owning - cost of renting

$120,000 - $108,000  = $12,000

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6 0
2 years ago
Some bikes and trikes are on the playground. There are 7 seats and 19 wheels. How many bikes are there? How many trikes are ther
snow_tiger [21]
Okay here we go!
1. I'm a visual person so i would start by drawing circles for the wheels. 
o o o o o o o o o o o o o o o o o o o 
2. I tried separating them by threes
ooo ooo ooo ooo ooo ooo o
2 By two's 
oo oo oo oo oo oo oo oo oo o
3. then i started to count 
ooo ooo ooo ooo ooo = 15 and i still had 4 left over 
oo oo = 4 and that would equal to 19 wheels!

the answer is: there are 5 trikes and 2 bicycles!!!!!
Hope that helped!
:) 

6 0
3 years ago
Read 2 more answers
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