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kirill115 [55]
2 years ago
6

Question 1 of 5 ? Marissa is throwing a ball across a 36-yard field. She threw it 3 of the way across the field. How far did Mar

issa throw the ball? ​
Mathematics
1 answer:
Crazy boy [7]2 years ago
8 0

Answer:

12

Step-by-step explanation3%36

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Solve x2 - 8x = 20 by completing the square. Which is the solution set of the equation?
Artyom0805 [142]

Answer:

{-2,10}

Step-by-step explanation:

x^2 - 8x = 20

Take the coefficient of x

-8

Divide by 2

-8/2 =-4

Square it

(-4)^2 =16

Add this to each side

x^2 - 8x+16 = 20+16

x^2 - 8x+16 = 36

The left hand side becomes( x + (-8/2) )^2

(x - 4)^2 = 36

Take the square root of each side

sqrt((x - 4)^2) =±sqrt( 36)

x-4 = ±6

Add 4 to each side

x-4+4 = 4±6

x = 4±6

x = 4+6       x = 4-6

x = 10        x = -2

3 0
3 years ago
PLS HELP IM TIMED
alina1380 [7]

Answer:

step one!

Step-by-step explanation:

I could be wrong, let me know!

7 0
2 years ago
Read 2 more answers
PLEASE HELP
Liono4ka [1.6K]
You can solve for sides of a triangle using the following equation. 

A = arccos (b^2 + c^2 - a^2/2bc)

And likewise for other variables by moving the letters. 

Ultimately, in this problem you get the following angle measures:

15.87
23.97
140.16
8 0
3 years ago
Read 2 more answers
Which expression is equivalent to (5z^2+3z+2)^2
zmey [24]
<span>Which expression is equivalent to (5z^2+3z+2)^2</span>

3 0
3 years ago
Read 2 more answers
A particle p is moving along the x-axis the displacement x metres from O can be writen as x=t^5-12t²+9 find the velocity
Lisa [10]

Answer:

v = t (5t^{3} - 24)

Step-by-step explanation:

We are given an expression to solve for the displacement (x), so in order to find velocity (v), we need to differentiate the function.

============================================================

Solving :

⇒ \frac{dx}{dt} = \frac{d}{dx} (t^{5} - 12t^{2} + 9)

⇒ v = (5)t^{5-1} - (2)12t^{2-1} + 0

⇒ v = 5t^{4} - 24t

⇒ v = t (5t^{3} - 24)

Using this equation, we can find the velocity if a value of t is given.

5 0
2 years ago
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