Answer: Marci: 60 minutes
Bobby: 30 minutes
Max: 90 minutes
Step-by-step explanation:
50% of 60 is 30.
100% of 60 is 60, plus 50% is 60+30, which gets you 90.
 
        
                    
             
        
        
        
You’re going it plug in the inputs for every input for the letter x. So the first one, fx= -4(-2)+1= 9. The second one fx= -4(0)+1=1. The third one fx= -4(5)+1=19.
        
             
        
        
        
Answer:
v = 7
 is the value for which
x = (-21 - √301)/10
is a solution to the quadratic equation 
5x² + 21x + v = 0
Step-by-step explanation:
Given that 
x = (-21 - √301)/10 .....................(1)
is a root of the quadratic equation
 5x² + 21x + v = 0 ........................(2)
We want to find the value of v foe which the equation is true. 
Consider the quadratic formula 
x = [-b ± √(b² - 4av)]/2a ..................(3)
Comparing (3) with (2), notice that
b = 21
2a = 10
=> a = 10/2 = 5
and 
b² - 4av = 301
=> 21² - 4(5)v = 301
-20v = 301 - 441
-20v = -140
v = -140/(-20)
v = 7
That is a = 5, b = 21, and v = 7
The equation is then 
5x² + 21x + 7 = 0
 
        
             
        
        
        
Answer:
  cups
 cups
Step-by-step explanation:
Given: A baker is using a cookie that calls for 2  cups of flour to yield 36 cookies.
 cups of flour to yield 36 cookies.
To find the number of flour will the baker need to make 90 cookies, we form a proportion.
Let's convert 2  to improper fraction.
 to improper fraction.

Let "x" be the amount flour to make 90 cookies
<u>Amount of Flour</u>                 <u>Number of cookies</u>
   36
                               36
        x                                            90
Now form a proportion.

Now let's cross multiply, we get


Now let's simplify the fraction part, Here the GCF of 90 and 144 is 18, so dividing the fraction's numerator and the denominator by 18, we get
x =  cups
 cups
So the baker needs  cups to make 90 cookies.
 cups to make 90 cookies.
 
        
             
        
        
        
The 3 angles when added together make a straight line which is 180 degrees. To find x subtract the 2 known angles from 180.
The answer would be x = 180 - (67 + 52)