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lora16 [44]
3 years ago
6

How many whole numbers "n" satisfy the inequality shown ?1/9<1/sqroot of n<1/7

Mathematics
2 answers:
Juliette [100K]3 years ago
7 0

Answer:

5

Step-by-step explanation:

sergiy2304 [10]3 years ago
6 0
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LOOK AT THE PHOTO NEED HELP<br> Number 10
Nikitich [7]

Answer:

x=15

Step-by-step explanation:

If x is 3 and y is 21, then that means that y is 7 times the value of x (21/3=7), or y=7x.  

If y is 105, then 105=7x

105=7x

105/7=x

15=x

3 0
2 years ago
Which ordered pairs lie on the graph of the exponential function f (x) = 3(0.2)^x
photoshop1234 [79]

The ordered pairs which lie on the graph of the exponential function, f(x) = 3(0.2)^x is; Choice A; (0, 3).

<h3>Ordered pair Solution;</h3>

The given exponential function is;

  • f (x) = 3(0.2)^x

By testing all values; Only the pair; (0, 3) is a solution to the graph of the exponential given.

By testing;

  • f (0) = 3(0.2)⁰.

  • Where, (0.2)⁰ = 1 (from indices).

  • f(0) = 3 × 1 = 3.

Read more on ordered pairs;

brainly.com/question/5754926

4 0
2 years ago
what is the solution to the system of equations: x- - y-z = 2, - x - 3 y - 2 z + 4, -x - 2 z = 10
ladessa [460]

Given equations are x- - y-z = 2, - x - 3 y - 2 z + 4, -x - 2 z = 10 .

It seems you have missed to write = in the 2nd equation so i have fixed the sign and going to solve the following system of equations:

x-y-z=2 ...(i)

-x-3y-2z=4 ...(ii)

-x-2z=10 ...(iii)


solve (i) for x

x=2+y+z ...(iv)

plug (iv) into (ii)

-x-3y-2z=4

-(2+y+z)-3y-2z=4

-2-y-z-3y-2z=4

-2-4y-3z=4

-4y-3z=6...(v)


plug (iv) into (iii)

-x-2z=10

-(2+y+z)-2z=10

-2-y-z-2z=10

-2-y-3z=10

-y=12+3z

y=-12-3z...(vi)


plug (vi) into (v)

-4y-3z=6

-4(-12-3z)-3z=6

48+12z-3z=6

48+9z=6

9z=-42

z=-14/3


Now plug value of z into (vi)

y=-12-3z=-12-3(-14/3)=-12+14=2

y=2


plug value of y and z into (iv)

x=2+y+z=2+2-14/3=-2/3


Hence final answer is x=-2/3, y=2, z=-14/3

3 0
3 years ago
Find the product or type<br> "impossible"<br> [6 ]I-1<br> 1 11<br> (-5<br> -5 3
ValentinkaMS [17]

Answer:

"impossible"

Step-by-step explanation:

I think.  :/

4 0
3 years ago
Read 2 more answers
In a class of 47 students, the number of males is 7 less than twice the number of females. How many females and how many males a
Rom4ik [11]
X=number of females
47-x=number of males
# of males is 2*(number of females)-7:
47-x= 2x-7
add x to both sides:
47=3x-7
add 7 to both sides:
54=3x
divide both sides by 3:
x= 18 females
47-18= 29 males
6 0
3 years ago
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