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monitta
3 years ago
12

This week in school, there is a 75 percent probability of having a fire drill, a 50 percent probability of a tornado drill,

Mathematics
1 answer:
vova2212 [387]3 years ago
8 0

Answer: A (edg2020)

     

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How does the value of b affect the graph of the equation?
slamgirl [31]
Hey there!
B in a slope intercept form equation is the the y intercept. It dictates where the line will cross the y axis, and therefore the line's placement altogether. This is because if there was no y intercept, the line would only be shaped by the slope, and would start at 0.
Hope this helped!
4 0
3 years ago
Solve by completing the square.
enot [183]

Answer:

x^2 -8x -5 = -3

x^2 -8x -2 = 0

We complete the square by:

1) Moving the "non X" term to the right:

x^2 -8x  = 2

2) Dividing the equation by the coefficient of X²

The coefficient of x is 1 so we don't do anything

3) Now here's the "completing the square" stage in which we:

      • take the coefficient of X

that is -8

     • divide it by 2

-8 ÷ 2 = -4

     • square that number

-4*-4 = 16

     • then add it to both sides of the  equation.

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

That becomes

(x -4)^2 = 18

we take the square root of both sides:

(x -4) = sqr root (18)

x1 = sqr root (18) +4

AND

(x+4) = sqr root (18) -4

x1 =  sqr root (18) +4 = 4.2426406871  + 4 = 8.2426406871

x2 = sqr root (18) -4 =  = 4.2426406871  - 4 = .2426406871

       

Step-by-step explanation:

8 0
2 years ago
What is the solution to:<br><img src="https://tex.z-dn.net/?f=6%20%5Cgeqslant%20%20%5Cfrac%7B1%7D%7B2%7D%20x%20%2B%2021" id="Tex
Vladimir79 [104]
I really hope this helps. Btw x<-30

7 0
3 years ago
Marcus spent 10 hours doing his homework last week.This week he spent 11 hours doing homework homework.He says he spent 110% mor
Ivenika [448]
Yes because 100 percent is 10 hrs so 1 more hr is 110 percent. And if u try to put it in a equation it will be 110%
5 0
3 years ago
Read 2 more answers
The main show tank has a radius of 60 feet and forms a quarter-sphere. what is the volume of the quarter-sphere shaped tank? rou
schepotkina [342]
By definition, the volume of a quarter of a sphere is given by:
 V = (1/4) * (4/3) * (\pi) * (r ^ 3)&#10;
 Where,
 r: sphere radius
 Substituting values we have:
 V = (1/4) * (4/3) * (3.14) * (60 ^ 3)&#10;
 Making the corresponding calculation we have:
 V = 226080 feet ^ 3
 Answer:
 
The volume of the quarter-sphere shaped tank is:
 
V = 226080 feet ^ 3
7 0
3 years ago
Read 2 more answers
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