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steposvetlana [31]
4 years ago
9

How do you find 1/2n+3<5

Mathematics
1 answer:
alina1380 [7]4 years ago
7 0

n < 1

Hope this helps! :)

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Which phrase correctly represents the algebraic expression 3t?
mote1985 [20]

Answer:

b

Step-by-step explanation:

3t is also represented as 3(t)

which is multyplication

theirfor the product

3 0
3 years ago
Cindy is at a baseball game with her younger brother, Mike. She has $18 to spend on hamburgers and pop. Hamburgers cost $3 each
g100num [7]

Answer:

6 hamburgers.

9 pops.

Step-by-step explanation:

18 divided by 3 = 6

18 divided by 2 = 9

4 0
3 years ago
Read 2 more answers
the roots of f(x)=-2x^2+8x+13 are __________and __________ the vertex of the parabola is at _________
iris [78.8K]

Answer:

roots:  2 ± (1/2)√42

                                                                  -8

axis of symmetry:  x = -b/(2a)  is  x = ---------------- = 2

                                                                 2(-2)

vertex:  (2, f(2) ) = (2, -2(2)^2 + 8(2) + 13 ), or (2, 21)

Step-by-step explanation:

First, let's determine the roots of this quadratic, using the quadratic formula.  Here the coefficients are -2, 8, 13.

Thus, the discriminant b^2 - 4ac is 8^2 - 4(-2)(13), or 64 + 104, or 168.  Because the discriminant is positive, we know that there are two different real roots.

They are:

        -8 ± √168                       -8 ± 2√42

x = ---------------------  or  x =  ---------------------  =  2 ± (1/2)√42

               -4                                     -4

6 0
3 years ago
The price of Stock A at 9 AM WAS $12.24. Since then, the price has been increasing at
expeople1 [14]

Answer:

Step-by-step explanation:

t is the number of hours

12.24+0.11t = 12.74-0.15t

0.11t + 0.15t = 12.74 - 12.24

0.26t = 0.5

t= 0.5/0.26

t= 1.92 hours

approx to 2 hours

3 0
3 years ago
4x squared + 29x + 30=0
saveliy_v [14]

So for this equation we're going to complete the square.

Firstly, what two terms have a product of 120x^2 and a sum of 29x? 24x and 5x. Replace 29x with 24x + 5x: 4x^2+24x+5x+30=0

Next, factor 4x^2 + 24x and 5x + 30 separately. Make sure that they have the same quantity inside the parentheses: 4x(x+6)+5(x+6)=0

Now you can rewrite the equation as: (4x+5)(x+6)=0

Now using zero product property, solve for x:

4x+5=0\\ 4x=-5\\ x=-1.25\\ \\ x+6=0\\ x=-6

In short, x = -1.25 and -6

8 0
4 years ago
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