I just need the answer for number 15 please

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Answer 1

Answer:

Answer:

Step-by-step explanation:

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The sum of two numbers is 19, and their difference is 55. What are the two numbers?
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A skydiver weighing 160 lb (including equipment) falls vertically downward from an altitude of 20,000 ft and opens the parachute after 18 s of free fall. Assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.7|v| when the parachute is closed and is of magnitude 14|v| when the parachute is open, where the velocity vis measured in ft/s. Assume that acceleration due to gravity has magnitude 32 ft/s; remember that weight is the product of mass and gravitational acceleration.Required:
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I found that the seeds are being big

Which fraction (in simplest form) is equivalent to 0.42?A.42/100
B.10/42
C.1/2
D.21/50

Answers

If you would like to know which fraction (in simplest form) is equivalent to 0.42, you can find this using the following steps:

0.42 = 42/100 = 21/50

The correct result would be D. 21/50.

Answer:

Step-by-step explanation:

What is 3.36 rounded to the nearest hundreth

Answers

3.36 rounded to the nearest hundredth is 3.36.

The hundredth spot is the 6.
And, since there is no thousandths, this is already the nearest hundredth,

5x + 3y = -15 + y= 2/3x + 9

Answers

-(189/19, 330/19) let me know if you would like an explanation! if i’m wrong please let me know!

The sum of the first 65 odd, positive integers is?I know the answer is 4225, but I don't know how to solve.

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$1+3+5+7+9+11+...\n\nThis\ is\ an\ atihmetic\ progression\ where\ a_1=1\ and\ d=2.\n\nThe\ sum:S_n=(2a_1+(n-1)d)/(2)\cdot n\n\nS_(65)=(2\cdot1+(65-1)\cdot2)/(2)\cdot65=(2+64\cdot2)/(2)\cdot65=(2+128)/(2)\cdot65\n\n=(130)/(2)\cdot65=65\cdot65=4225$

Can you solve (4x-3)/(x+2)+(15)/(x-3)

Answers

Please see the pic, I'd solved in it.

$(4x-3)/(x+2)$ + $(15)/(x-3)$ = 0
1st step: We need to have a common denominator.
So we do this:
$((4x-3)*(x-3))/((x+2)*(x-3))$ + $((15)*(x+2))/((x-3)*(x+2))$ = 0
2nd step: Distribute them
$(4x^(2)-3x-12x+9)/((x-3)(x+2))$ + $(15x+30)/((x+2)(x-3))$ = 0
3rd step: Do the rest of the equation!
We can put it on one fraction, its fine.
$(4x^2-15x+9+15x+30)/((x+2)(x-3))$ = 0
$(4x^2+39)/((x+2)(x-3))$ = 0 (-15 and 15 cancels out)
4th step: take the denominator to the other side
4x²+39 = 0 (anything × 0 = 0)
5th step: Take 39 to the other side
4x² = -39
6th step: Divide by 4 on both sides
$(4x^2)/(4)$ = $-(39)/(4)$
(4 and 4 cancels out)
x² = $-(39)/(4)$
7th step: Take the square root to keep x alone
x = $-\sqrt(39)/(4)$
It can also be written as:
x = $-( √(39) )/( √(4) )$
Final answer:
x = $-( √(39) )/(2)$

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