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3 years ago

Please find the missing side of this triangle

Mathematics

1 answer:

Strike441 [17]3 years ago

7 0

The answer is 15.01

First you need to find the other angle of the triangle so you do 90+25 which gives you 115 and subtract that by 180 because all angles of a triangle add up to 180. That gives you 65 then you will use TAN(65) and get 2.144506920509559 which you will then multiple by 7 to get 15.01154844356691 which you then round to get 15.01!

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Subject : Maths Level : High school Topic : Surds Points : 72

Mila [183]

Answer:

a = 5

Step-by-step explanation:

Simplify:

√5(√8 + √18) =
√5*8 + √5*18 =
√40 + √90 =
√4*10 + √9*10 =
2√10 + 3√10 =
(2 + 3)√10 =
5√10

The value of a:

a√10 = 5√10
a = 5

6 0

3 years ago

Answer this A(n)=12(n-1)5

just olya [345]

Distribute:

(12n-12)5

60n-60 = A(n)

You can't really find what n is I don't think, because you have 2 unknown variables n and A(n).

6 0

3 years ago

what is the formula for calculating the circumference, C, of a circle, if you know pi and the diameter

Karolina [17]

Answer: The formula for calculating the circumference is C = pie(d)

or you could also use C = 2(pi)r squared.

8 0

3 years ago

Read 2 more answers

Otto's investment portfolio consisted of shares of internet stock and copper stock. During the year, the value of his internet s

oksano4ka [1.4K]

Answer:

44000

Step-by-step explanation:

Let w be the initial value of Otto's internet stock, in dollars. At the beginning of the year, the total value of his portfolio is w+10,000 dollars. At the end of the year, the total value of his portfolio is 1.1w+9,000 dollars. Since increasing by 6% is equivalent to multiplying by 1.06, we have

1.06(w+10,000)=1.1w +9,000

Distributing and collecting terms, we find w=40,000. At the end of the year, his internet stock is worth 40,000* 1.1=44,000 dollars.

*credits: AoPS

3 0

3 years ago

Solve the inequality below for x, where c is less than 0.

stepladder [879]

Hi there! The first answer is correct.

Let's solve this equation step by step!
$cx - 4 \geqslant 7$

First add 4 to both sides of the equation
$cx \geqslant 11$

Now divide both sides of the equation by c. Because c is a negative number, we mustn't forget to flip te sign.
$x \leqslant \frac{11}{c}$

The first answer is correct.
~ Hope this helps you!

6 0

4 years ago