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Vinvika [58]
3 years ago
5

I need help desperately

Mathematics
1 answer:
Nataly [62]3 years ago
6 0

Answer:

B is the answer

Step-by-step explanation:

Look at where the decimal is placed and the value of the numbers

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Write the expression that shows 3 time the sixth power of 10
77julia77 [94]
3 x 10^6

Shouldn't be too hard for ya ;)
8 0
3 years ago
What is the range of y= x + 2?
Lelu [443]

Answer:

A) all real numbers greater than or equal to 2

Domain: x\geq 0

Step-by-step explanation:

The variable in the radical <em>x </em>cannot be less than 0 as that wouldn’t be defined. So, the maximum that <em>x </em>can be is 0, and y=x+2. So, 0+2=2, and <em>y </em>is greater than or equal to 2.

Domain is x is greater than or equal to 0 because you cannot square a negative. So, it must not be less than 0. It could be 0 because square root of 0 is just 0.

7 0
3 years ago
Recall that the perimeter of a figure such as the one to the right is the sum of the length of its sides. Find the perimeter of
wolverine [178]

Answer:

72z+176

Step-by-step explanation:

36z+28+8z+40+12z+60+48+16z=

36z+8z+12z+16z+28+40+60+48=

72z+176

5 0
2 years ago
Determine how many zeros, how many real or complex, and find the roots for f(x) = x3 − 5x2 − 25x + 125.
miskamm [114]
We can write this as:-

P(x) = + x^3 - 5x^2 - 25x + 125
There are 2 changes of real sign so by Descartes Rule of  signs there are either 2  positive real roots or 0 positive roots.

P(-x)  = - x^3 - 5x^2 + 25x + 125 
There is just one change of sign  so  there is exactly 1 real negative root.

125 is a multiple of 5 so By rational root theorem  5 could be  a positive root.

P(5) =  125 - 125 - 125 + 125  = 0   so one zero is  5
if we divide   the polynomial by (x - 5) we get the quadratic
x^2 - 25 
(x + 5)(x - 5) = 0

x = 5,-5

so the roots are 5 (multiplicity 2)  and -5.
2 real positive zeroes  and one real negative zero
7 0
3 years ago
College bookstore charge $60 for a yearly membership. Books will then only cost $7.60 each, tax included. Right in equation to r
Yuri [45]
Equation - 7.60b+60=m


7.60b+60=100
You’d be able to buy 5 books
4 0
3 years ago
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