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ikadub [295]
2 years ago
13

Help help area and perimeter

Mathematics
1 answer:
natita [175]2 years ago
4 0

Answer:

Perimeter= 49

area= 360

Step-by-step explanation:

perimeter means you need to add 40+9 and area means you must multiple the numbers.

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A school dance committee is made up of 2 freshman, 6 sophomores, 3 juniors, and 2 seniors.
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Step-by-step explanation:

7 0
3 years ago
Are the following figures similar?
aalyn [17]

a no the corresponding angles are not congruent

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Read 2 more answers
During two years, the population of birds of an island became 7 times more than before. If the first year increase in the popula
nordsb [41]

Answer:

The percent increase of the second year is 400%.

Step-by-step explanation:

Consider the provided information.

Let the population of birds was x.

After 2 years the population becomes 7 times more than before.

Therefore, after 2 years population is 7x.

In first year increase in the population was 40%.

Population after 1st year = x + 40% of x

Population after 1st year = x + 0.40x

Population after 1st year = 1.4x

The population increase from 1st year to 2nd year is: 7x-1.4x=5.6x

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\% increase=\frac{5.6x}{1.4x}\times100=400\%

Hence, in second year the population of birds increase by 400%.

6 0
3 years ago
If f(x) = f(x)g(x), where f and g have derivatives of all orders, show that f'' = f ''g + 2f 'g' + fg''.
Nadya [2.5K]
Differentiating once, we have

f'(x)=f'(x)g(x)+f(x)g'(x)

Differentiating again,

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as needed.
5 0
3 years ago
Expand and combine like terms.<br> (7b^5 – b^2)^2
KiRa [710]
I got 49b^10-14b^7+b^4
7 0
3 years ago
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