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earnstyle [38]
2 years ago
14

I'm completely lost .. help would be greatly appreaciated

Mathematics
1 answer:
katrin [286]2 years ago
4 0
First you calculate the area of the triangle:
Area_{triangle} = \frac{base \cdot height}{2} = \frac{2 \cdot 3}{2} =3 square yards.
For the base and the height of the triangle you need to count how many squares it takes on the picture.

For the rectangle you need to calculate the length and the height first.
For each we are going to use the Pythagorean theorem:
Height^2 = 2^2 + 3^2
Height =\sqrt{4+9}=3.6055513 yards

Again count the numbers of squares for the triangle in which the rectangle's height is the hypotenuse.

We do the same for the Length of the rectangle:
Length^2 = 4^2 + 6^2
Height =\sqrt{16+36}=7.2111026 yards

Now we calculate the area of the rectangle:
Area_{rectangle} = Length \cdot Height = 3.6055513 \cdot 7.2111026 = 26 square yards.

The total material area to cover both is:
3 + 26 = 29 square yards



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Math help please <br><br> Thanks <br> A lot
babunello [35]

Answer:  

2 hours:  3968  <u>[I don't understand the $ sign in the answer box]</u>

At midnight:  12137

Step-by-step explanation:

The bacteria are increasing by 15% every hour.  So for every hour we will have what we started with, plus 15% more.  

The "15% more" can be represented mathematically with (1 + 0.15) or 1.15.  Let's call this the "growth factor" and assign it the variable b.  b is (1 +  percent increase).

Since this per hour, in 1 hour we'll have (3000)*(1.15) = 3450

At the end of the second hour we're increased by 15% again:

(3450)*(1.15) = 3968.

Each additional hour add another (1.15) factor,  If we assign a to be the starting population, this can be represented by:

P = a(1.15)^t for this sample that increase 15% per hour.  t is time, in hours.  

If a represents the growth factor, and P is the total population, the general expression is

P = ab^t

Using this for a = 3000 and b = 1.15, we can find the total population at midnight after starting at 2PM.  That is a 10 hour period, so t = 10

P = (3000)*(1.15)^10

P = 12137

8 0
2 years ago
Other than adding vocabulary, what developments occur in speech and language skills?
aleksandr82 [10.1K]
They might stutter when they say words.
afterward they will start saying words like mom,cup,juice,food.

it just takes a while for their tongue to get used to saying words
3 0
3 years ago
Hii! please help i’ll give brainliest
natima [27]

Answer:

Bukhara

Hope this helps!

--Applepi101

6 0
3 years ago
Round off to 837,858
Fed [463]
840,00 is a reasonable rounding
4 0
3 years ago
Read 2 more answers
PLEASE HELP!! 30 POINTS
levacccp [35]

Answer:

10 (D)

Step-by-step explanation:

do the Pythagorean theorem

3 0
3 years ago
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