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Ugo [173]
3 years ago
8

Which linear equation best describes the relationship between x and y?

Mathematics
2 answers:
koban [17]3 years ago
8 0
Answer b ; 150=10x20 - 50
vovikov84 [41]3 years ago
7 0

Answer:

C

Step-by-step explanation:

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Suppose 6 of 15 students in a grade-school class develop influenza where 20 percent of grade-school students nationwide develope
Snowcat [4.5K]
I am not sure what the question is here. I can tell you how to find the percent of kids that developed influenza in that class. We can compare it to the 20% of students nationwide. There could many different questions that stem from the piece of information you gave.

To find the percent of kids that developed influenza in that class do 6÷15 which gives you
.4 and written as a percent would be 40%.

Please message me if you have any questions! Hope this helps!
6 0
3 years ago
Urgent math trig. question. plz help. number 6​
Rom4ik [11]

4x/√16 - X²

=

as a² - b² = (a+b)(a-b)

so

√(4-×)(4+×)

So

as x =

7 0
4 years ago
A building has an entry with the shape of a parabolic arch 66 feet high and 46 feet wide at the base. Find an equation for the p
olya-2409 [2.1K]
So. hmmm we know the arc entry has a vertical clearance of 66 feet, and is 46feet wide

notice the picture below.. if we move the arc to the origin, we end up with a parabola like so, from -23, 0 to 23, 0

now  \bf \boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}\qquad\qquad  vertex\ ({{ h}},{{ k}})\\\\
-----------------------------\\\\
y=a(x-0)^2+0\implies y=ax^2
\\\\\\
\textit{what's the value of "a"?  well, we know }
\begin{cases}
x=23\\
y=-66
\end{cases}
\\\\\\
-66=a(23)^2\implies \cfrac{-6}{529}=a\qquad thus\qquad \boxed{y=-\cfrac{6}{529}x^2}

6 0
3 years ago
SKIP # 14 SHOW ALL WORK PLEASE AND I WILL GIVE BRAINLY AND 77 points for it
babunello [35]

Answers:

11. 48%

12. 25%

13. 36%

15. 93%

16. 99%

17. 0.16%

18. 160%

19. 85%

Work for 19:

The chart is incorrect because it calculates 40% of 34 instead of 40 percent of x (we got 85% for our answer but I'm using x as the unknown number) results in the number of 34.

Percentage of 40% of what number = 34?

40% of what number = 34 is equivalent to: 40% × ? = 34

--------------------------

40% × ? = 34

? =

34 ÷ 40% =

34 ÷ (40 ÷ 100) =

(100 × 34) ÷ 40 =

3,400 ÷ 40 =

85

Proof:

If 40% × 85 = 34 =>

Divide 34 by 85...

... And see if we get as a result: 40%

----------------------------------------------------------

20. 21 students

Step-by-step explanation:

I hope I helped, and I always appreciate brainliest!!! ;)

6 0
3 years ago
Is 9,440,260 divisible by 3?<br><br> YES or NO<br><br> HELP ME PLZ!!!
mina [271]

Answer:

Yes It is Divisible by 3

Step-by-step explanation:

It is 314 in whole numbers but it has some decimals.

6 0
3 years ago
Read 2 more answers
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