All categories

3 years ago

TASK 2

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

4 0

Step-by-step explanation:

The required shape is a square.

Refer to the attachment.

The sides of a square are equal. So, the answer is a square.

[Drawing Courtesy- Brainly app]

You might be interested in

At the beginning of an environmental study, a forest covered an area of 1500 km2 . Since then, this area has decreased by 9.8% e

fredd [130]

Answer:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

Step-by-step explanation:

In this problem, the initial area of the forest at time t = 0 is

$A_0 = 1500 km^2$

After every year, the area of the forest decreases by 9.8%: this means that the area of the forest every year is (100%-9.8%=90.2%) of the area of the previous year.

So for instance, after 1 year, the area is

$A_1 = A_0 \cdot \frac{90.2}{100}=0.902 A_0$

After 2 years,

$A_2=0.902 A_1 = 0.902(0.902A_0)=(0.902)^2 A_0$

And so on. So, after t years, the area of the forest will be

$A(t)=(0.902)^t A_0$

And by substituting the value of A0, we can find an explicit expression:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

8 0

4 years ago

SecA-1= secA(1-cosA)

horsena [70]

Answer by JKismyhusbandbae:

$\mathrm{Manipulating\:left\:side}\\\sec \left(a\right)-1\\Express\:with\:sin,\:cos\\=-1+\frac{1}{\cos \left(a\right)}\\\mathrm{Simplify}\:-1+\frac{1}{\cos \left(a\right)}:\quad \frac{-\cos \left(a\right)+1}{\cos \left(a\right)}\\\frac{1-\cos \left(a\right)}{\cos \left(a\right)}\\\mathrm{Use\:the\:following\:identity:}\:\frac{1}{\cos \left(x\right)}=\sec \left(x\right)\\=\left(1-\cos \left(a\right)\right)\sec \left(a\right)\\\mathrm{We\:showed\:that\:the\:two\:sides\:could\:take\:the\:same\:form}\\$

$\Rightarrow \mathrm{True}$

5 0

3 years ago

Read 2 more answers

The cost for n students to attend a workshop is 7n+12 dollars. What is the cost,in dollars for students to attend?

kakasveta [241]

You would divide both 12 and 7n by 7. To isolate the variable. You end up with 5+n. You can not say 5n because you cannot combine unlike terms. Your answer would be 5+n. Hope this helps

3 0

3 years ago

Help!!!!!!!!!!!! What is P(2)? 7 14 21 28

Lubov Fominskaja [6]

P(2) is 14, because the 2 represents where the number in t, so you have to find the number under 2, so you get 14.
P(2)=14

3 0

4 years ago

Read 2 more answers

The weather report stated that tomorrow's low temperature will be -3 degrees. What does that statement mean?

Firlakuza [10]

It means the temperature will be three degrees below 0.

6 0

3 years ago

Read 2 more answers