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Katarina [22]
2 years ago
15

Ms. Cathy bought a package of pens. Out of every 10pens​, 9 are black. If there are 70 pens in the​ pack, what fraction of the p

ens in the pack are​ black? What percent of the pens in the pack are​ black.
Mathematics
1 answer:
cluponka [151]2 years ago
8 0

Answer:

the answer is 90 percent

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1/(x+4)(x-2)(x-5) excluded values
UNO [17]

Answer:

see explanation

Step-by-step explanation:

The excluded values are any values of x that make the function undefined

Given

\frac{1}{(x+4)(x-2)(x-5)}

The denominator of the rational function cannot be zero as this would make it undefined. Equating the denominator to zero and solving gives the values that x cannot be.

(x + 4)(x - 2)(x - 5) = 0

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

x - 2 = 0 ⇒ x = 2

x - 5 = 0 ⇒ x = 5

x = - 4, x = 2, x = 5 are the excluded values

4 0
2 years ago
What is the prime factorization for 900 i just need the answer i got to turn in in like 2 minute ​
Tomtit [17]

Answer:

Factors (2 x 2 x 3 x 3 x 5 x 5 = 900). It can also be written in exponential form as 22 x 32 x 52.

Step-by-step explanation:

4 0
2 years ago
to support a tree damaged in a storm, a 12-foot wire is secured from the ground to the tree at a point 10 feet off the ground. t
Leokris [45]
Choice given:
<span>33.6°
39.8°
50.2°
56.4°

I drew the figure. 
I got 12 ft as the hypotenuse, 10 ft as the opposite.

Sin</span>Θ = opposite / hypotenuse 
SinΘ = 10/12
SinΘ = 0.83

I used the calculator to get the value of each angle using the sine function
sin(33.6°) = 0.55
sin(39.8°) = 0.64
sin(50.2°) = 0.77
sin(56.4°) = 0.83

The angle where the wire meets the ground is approximately 56.4°
8 0
3 years ago
Read 2 more answers
Two roads cross at an intersection. If one of the angles created is 50 degrees what’s are the three angles
Natasha2012 [34]
50 degrees is one while the other two are 130 degrees
4 0
3 years ago
Wh at ordered pair locates a reflection of -2,3
Ivanshal [37]
That would be 2,3 hope this helps
4 0
3 years ago
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