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slega [8]
3 years ago
6

What is the area of abc

Mathematics
1 answer:
SpyIntel [72]3 years ago
3 0
Height = h = 5base = b = 12area = (1/2)(h*b)(1/2)(5*12)(1/2)(60)30area = 30
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What are the first four terms of the sequence an=n2+4
Igoryamba

Step-by-step explanation:

Given formula

an = n² + 4

Now the first four terms of the sequence are

a1 = 1² + 4 = 5

a2 = 2² + 4 = 4 + 4 = 8

a3 = 3² + 4 = 9 + 4 = 13

a4 = 4² + 4 = 16 + 4 = 20

The terms are

5 , 8 , 13 and 20.

7 0
3 years ago
Need help with this,30 points, please help very soon, thanks
Makovka662 [10]

The speed of the airplane is 360 km/h while the speed of the wind is 40 km/h.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

Let a represent the speed of the airplane and b represent the speed of the wind, hence:

(a + b)6 = 2400  

a + b = 400     (1)

Also:

(a - b)7.5 = 2400

a - b = 320   (2)

From eqn 1 and 2:

a = 360 km/h, b = 40 km/h

The speed of the airplane is 360 km/h while the speed of the wind is 40 km/h.

Find out more on equation at: brainly.com/question/2972832

#SPJ1

8 0
2 years ago
If there's a sale and the original price is 140 and it's one fifth off how much is the sale?
Alex777 [14]
$112
1-1/5=4/5
4/5 x 140 =112
hope this helps :)
6 0
3 years ago
Initially, there were only 197 weeds at a park. The weeds grew at a rate of 25% each week. The following function represents the
olganol [36]

Answer:

 none of the above

 f(x) ≈ 197·1.03^x; approximately 3% daily

Step-by-step explanation:

If we let x represent days, then x/7 represents weeks and we can rewrite f(x) as ...

 f(x/7) = 197·1.25^(x/7) = 197·(1.25^(1/7))^x

 f(x) ≈ 197·1.03^x

__

The daily multiplier of 1.03 represents a daily growth rate of

 1.03 -1 = .03 = 3%

_____

These answers are not found among the offered choices:

f(x) = 197·1.03^x

3% daily growth

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Can you please help me. If you help me i will give you brainliest ( question 2-5)
vfiekz [6]

Answer:

I have made it in the above picture

5 0
3 years ago
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