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vesna_86 [32]
3 years ago
9

HI pls help me this is DUE TODAY thank u!

Mathematics
2 answers:
Maslowich3 years ago
7 0
Hello positivity note:you can do everything if you work hard
Mnenie [13.5K]3 years ago
6 0
The range to this question in set notation is (-infinity, positive infinity).
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Solve the equation for all values of r.<br> (22 – 16) (22 + 49) = 0<br> Please help
wel

<em>Correct expression: </em>(x^2-16)(x^2+49)=0

Answer:

x =  4

x = -4

x = 7i or 7 \sqrt{-1}

x = -7i or (-7) \sqrt{-1}

Step-by-step explanation:

(x^2-16)(x^2+49)=0

We do factorization of x^2 - 16

(x^2-16) = (x+4)(x-4)

(x+4)(x-4)(x^2+49) = 0

We require that any term in the multiplication to be zero to fulfil the requirement

so:

if x + 4 = 0 then (x+4)(x-4)(x^2+49) = 0

x = -4

if x - 4 = 0 then (x+4)(x-4)(x^2+49) = 0

x = 4

if (x^2+49) = 0 then (x+4)(x-4)(x^2+49) = 0

x^2 = -49

we have two roots:

If your course has already worked with complex number and the root of -1 then:

7i and -7i are solution as well

because 7i will be: 7^2 \sqrt{-1} ^2= 49 (-1) = -49\\

and the same reasoning for -7i: (-7)^2 \sqrt{-1} ^2= 49 (-1) = -49

3 0
3 years ago
Please solve this for 15 points
EastWind [94]

Answer:

   on the outside of the bracket. The divisor is the number you're dividing by.Set up the division problem with the long division symbol or the the dividend, on the inside of the bracket. The dividend is the number you're dut 32, the divisor, on the outside of the bracket. The divisor is the number you're dividing by.Set up the division problem with the long division symbol or the long division brackPut 487, the dividend, on the inside of the bracket. The dividend is the number yoPut 32, the divisor, on the outside of the bracket. The divisor is the number you're dividing by.

Step-by-step explanation:

8 0
3 years ago
Garrett and Carter went to the movies last weekend. Together they bought 2 drinks and 2 popcorns. They spent a total of $12.50.
Tatiana [17]
Since Garrett and Carter bought popcorn and drinks, we have to figure out how much money is 1 drink and 1 popcorn. I figured the best way is to figure out half of $12.50 because 2 drinks and 2 popcorn cost that amount of money. You divide $12.50 by 2 to figure out half of that amount. The quotient equals to $6.25.

4 0
4 years ago
Question 3
Galina-37 [17]

(a) The vertical motion equation for the ball is h = 8 + 48t - 16t².

(b) The time for the ball to hit the ground is 3.15 s.

(c) The time for the ball to travel 56 ft above the ground is 0.79 s.

<h3>Vertical motion equation for the ball</h3>

The vertical motion equation for the ball is calculated as follows;

h = h₀ + vt - ¹/₂gt²

h = 8 + 48t - ¹/₂(32)t²

h = 8 + 48t - 16t²

<h3>Time for the ball to hit the ground</h3>

0 = 8 + 48t - 16t²

solve the above quadratic equation with formula method;

a = -16, b = 48, c = 8

t = 3.15 s

<h3>Time for the ball to be 56 ft above the ground</h3>
  • let upward motion be positive

h = 8 + 48t + 16t²

56 = 8 + 48t + 16t²

0 = -48 + 48t + 16t²

solve the above quadratic equation with formula method;

a = 16, b = 48, c = -48

t = 0.79 s

Learn more about equation of motion here: brainly.com/question/25951773

#SPJ1

5 0
3 years ago
Any help would be nice
marin [14]

Answer:

wwwiiitttthhhhh?????????????

8 0
3 years ago
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