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stellarik [79]
3 years ago
15

The following formula models the number of prison inmates, P, in thousands, who are in U.S prisons x years after 1980.

Mathematics
1 answer:
MariettaO [177]3 years ago
7 0
2X^2+22x+318=1270
2x^2+22x-952=0
x^2+11x-476=0
(x+28)(x-17)=0
x=17
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Which of the following are trigonometric identities ? Check all that apply. Tan^2 x -
snow_tiger [21]
I hope you are looking for these answer choices as you have not posted the choices. Therefore, I have a similar question with these answer choices.

a). tan² x - 1 = sec²x
b). 4 cosxsinx = 2cos + 1 -2sinx
c). tanx cosx cscx = 1
d). 1- tanx tany = cos(x+y) ÷ cosx cosy

<span>Options B, C, D are correct because, for all them, left-hand side equals to the right-hand side for x = 0.

The option A)
</span>tan² x - 1 = sec²x<span> is not true. 
since x = 0
Therefore,
The Right hand side would be:
                                         </span>tan² x - 1 = sec²(0)<span>
                                                             = 1
The Left hand side would be:
                                         </span>           tan² x - 1 = tan² (0) - 1
                                                                   = 0 - 1
                                                                   = -2
Therefore,
Both sides are not equal so it's not a trigonometric identity.
3 0
3 years ago
The sum of a number g squared and 4 is greater than or equal to −5.
topjm [15]

Answer:

g^2 + 4 > -5

Step-by-step explanation:

sum implies addition so add it with 4

i can’t put the equal to thing on here but there is supposed to be a line under the greater than symbol

5 0
3 years ago
Read 2 more answers
What is the area of a trapezoid that has the following dimensions?
Grace [21]
A=1/2 × (a+b) × h
=1/2 × (45+37) × 6
=1/2 × 82 × 6
=246mm^2

I hope this helps.
8 0
3 years ago
Read 2 more answers
How can 5 - (+4) be rewritten?
lubasha [3.4K]
If you paid attention in math, you would know this lol jk.
But you would rewrite it as 5+4
3 0
3 years ago
Simple 9th grade math
Liono4ka [1.6K]

Answer:

-1078

Step-by-step explanation:

To find the nth term in an arithmetic sequence we use the following formula

aₙ=a₁+(n-1)*d

Where a₁ is the first time, and d is the common difference (in this case -20)

So we have

2+(55-1)*-20

2+(54)*-20

2-1080

-1078

5 0
3 years ago
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