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3 years ago

I'm so bad at math someone help please

Mathematics

2 answers:

VladimirAG [237]3 years ago

8 0

A is the answer the answer is a

harkovskaia [24]3 years ago

8 0

Tagged *2008: 40 *2009: 16 *2010: 8 total caught *2009: 50 *2010: 30 Now, you can compare them. Like so, let's use the first one. You can compare the ratio of 16/40 = 50 / x where x is the total population so basically the proportion above represents that 16 of the 40 tagged were caught and it relates proportionately to the number of turtles caught out of the entire population of turtles that were currently there in 2009. Now, you can cross multiply to get this... 16/40= 50/x 16x = 2000 then divide by 16 x = 125 125 represents the total population Set up the other proportion just likes this and you should be able to get the population for 2010 as well. There are other ways to set it up though if you want to experiment on your own. Hope this helped.

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Medians $\overline{dp}$ and $\overline{eq}$ of $\triangle def$ are perpendicular. if $dp= 18$ and $eq = 24$, then what is ${de}$

monitta

Denote by M the point of intersection of the medians.
Denote also the distance DM by x and the distance QM by y.
From the median properties of triangles we know that
$y=\frac{1}{3}\timesFQ=\frac{1}{3}\times24=8$
Also,
$x=\frac{2}{3}\times DP=\frac{2}{3}\times 18=12$
Since the medians are perpendicular, we deduce that:
$x^2+y^2=DQ^2\iff DQ=\sqrt{8^2+12^2}=14.4$
Then, since $DE=2\times DQ\text{ then }DE=2\times 14.4=28.8$

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4 years ago

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The diagram shows a right-angled triangle.

son4ous [18]

answer

11.3 cm

steps

what is h cm to angle 37°=it is an opposite side

what is 15 cm to angle 37°=it is an adjecent side

opposite and adjecent form a tan

.°. opp/adj = tan(37°)

h/15 = tan(37°)

h = 11.3 cm

6 0

3 years ago

Dwayne wrote a two-digit number. He multiplied it by 3, added 18, and divided by 8. His final answer was 9. What number did Duwa

Karolina [17]

Question 1:
(x*3)+18/8=9 is the equation
(x*3)+18=72 multiply by 8
(x*3)=54 Subtract 18
x=18 Divide by 3

The two digit number is 18

Question 2:
x*4=43 Divide by 4
x=10.75 10 3/4
10 3/4+3 3/4 Solve
14 1/2

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4 years ago

Pls help i’ll mark you brainliest

k0ka [10]

Answer:

90°

Step-by-step explanation:

please mark brainliest :))

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3 years ago

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25 + 18-6-1............

ch4aika [34]

Answer: 36

Step-by-step explanation:

25 + 18 - 6 - 1

25 + 18 = 43

43 - 6 - 1

43 - 6 = 37

37 - 1 = 36

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3 years ago

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