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polet [3.4K]
2 years ago
15

PLS HELP ASAP :) Explain pls also!

Mathematics
1 answer:
Andru [333]2 years ago
6 0
11 students received a score of 80 or better because the chart says that 7 students received a score of 80-89 and 4 students received a score of 90-100
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If a is equal to 2 + root 3 upon 2 minus root 3 and b is equal to 2 minus root 3 upon 2 + root 3 then what is the value of a squ
natulia [17]

<em>1</em><em>9</em><em>5</em>

Step-by-step explanation:

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8 0
3 years ago
Use expressions for odd integers to confirm the conjecture that the product for two odd integers is an odd integer.
Mandarinka [93]

k, n - integers  

2k+1  - an odd integer

2n+1  - another odd integer

The product of them:

  (2k + 1)(2n + 1) =

= 4kn + 2k + 2n + 1 =

= 2(2kn + k + n) + 1

The product of integers (2kn) is integer

and the sum of them (2kn+k+n) also is integer

So  (2k + 1)(2n + 1)  = 2(2kn + k + n) + 1  is an odd integer

4 0
3 years ago
Look at this system of equations. How can the system be changed so that the two equations have equal x-coefficients?
Volgvan
I believe the correct answer from the choices listed above is option A. The <span>system can be changed so that the two equations have equal x-coefficients by multiplying </span><span>both sides of the top equation by 2 resulting to 6x + 4y = 24. Hope this answers the question.</span>
5 0
3 years ago
HELP ASAP PLEASE!!
Mama L [17]

Answer:

Step-by-step explanation:

According to the table, function g(x) reaches the max height of 33, approx.

The equation of motion is f(x) = -16x^2 + 42x + 12.  We need to determine the maximum of this function.  To do this, find the x-coordinate of the vertex, which is x = -b/(2a), or x = -42/(2*-16), or 1.31 sec.

Evaluating f(x) = -16x^2 + 42x + 12 at x = 1.31 sec, we get f(1.31) = 39.6.

So it appears that f(x) has a higher max than does g(x); the difference is approx. 39.6 - 33, or 6.6

6 0
3 years ago
Please help me out with this
baherus [9]
Hello 16,700 is left over
8 0
3 years ago
Read 2 more answers
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