MATHEMATICS MIDDLE SCHOOL

PLEASE HELP ME?? 10 POINTS?! HELP ASAP.

Answers

Answer 1

Answer:

Answer:

Last graph (D)

Step-by-step explanation:

$f(x)=x(x-2)(x+4)$

Find the zeros:

$f(x)=0\iff x(x-2)(x+4)=0\iff x=0\ \vee\ x-2=0\ \vee\ x+4=0\n\n\boxed{x=0}\ \vee\ \boxed{x=-2}\ \vee\ \boxed{x=-4}$

A graph with that x-intercepts is the last graph.

The second and third graphs are graphs of the quadratic function.

We have the function third degree (graph A and D).

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jennifer earns 720.00 per week alex earn 3/4 of what jennifer earns per week how much does alex earn per week

Answers

Answer:

alex earns 540.00

Step-by-step explanation:

Alex earns £540 per week

How do I help my child figure this out? What methods should she use? It is 4:02. What time was it 2 hours and 19 minutes ago?

Answers

subtract two hrs : 2:02 then subtract twenty minutes : 1:42 and then add 1; 1:43

You should tell your child to figure out how much time 2 hours and 19 minutes will be (2:19). What I'd do is take 2:19 and subtract that from 4:02. I'm pretty sure that this is correct. Hope this helps!

Artificial turf in on athletic fields was first introduced in the 1960s. Its safety has been controversial since then. One issue that has been investigated is whether injuries of football players tend to be more serious on artificial turf than grass. A study followed 24 NCAA division 1A college football teams over three seasonsIn total there were 1050 injuries that occurred on field turf. Of the field turf injuries, 83.3333% were minor and 10.857% were substantial.

77.972% of grass injuries were minor.

4.26% of injuries occurred on grass were severe.

(There is a total of minor injuries on grass and on field turf is equal to 1813.

How many injuries were severe and occurred on field turf? Write your answer as an integer.

How many injuries were severe? Write your answer as an integer.

Answers

1. Out of 1050 injuries that occurred on field turf:
$(1050)(0.8333) = 875$ were minor and $(1050)(0.10857) = 114$ were substantial. This leaves 1050 - 875 - 114 = 61 severe injuries.

2. If there were 1813 total minor injuries, and 875 were on field turf, then 1813 - 875 = 938 were on grass. This is 77.972% of all grass injuries, so $0.77972x = 938$ gives $x = 1203$ total grass injuries.

Since 4.26% of grass injuries were severe, this is (1203)(0.0426) = 51 severe grass injuries. Adding this to the 61 severe turf injuries gives a total of 112 severe injuries.

What is 12 17/35 as a whole number? Plz show work.

Answers

12 17/35

Sence 17/35 its less then half so it would just be 12

16/18 into simplest form

Answers

Answer=8/9

16/18=8/9

if you divide 16 and 18 by 2, you get 8 and 9

$(16)/(18) = (16:2)/(18:2) = (8)/(9)$

Nice days.......

Help a gurl out, my fellow Brainy's?What is the quotient written in scientific notation?
2x10^21 over 8x10^3

A.2.5x10^6

B. 0.25x10^18

C.2.5x10^17

D.0.25x10^7

Answers

so (2 times 10^21)/(8 times 10^3)
using the associative property
exg
xy/zt=y/z times x/t so

(2 times 10^21)/(8 times 10^3)=2/8 times (10^21)/(10^3)
2/8=1/4=0.25

when dividing exponents, just subtract the bottom number from the top number exg
10^21/10^3=10^(21-3)=10^18

so the answer is 0.25 times 10^18, but

scientific notation is
(a number >1 and <10) times 10^x

so 0.25 times 10=2.5 and 2.5>1 and <10 so this should work

0.25 times 10^18=2.5 times 10^17 ( we just took the ten from the 18)

so the answer is 2.5 times 10^17 or C

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