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Paraphin [41]
2 years ago
11

Giving brainliest What is the value of x? A right angle is shown divided into two parts. The measure of one part of the right an

gle is 30 degrees. The measure of the other part is 2x 10 15 30 45
Mathematics
1 answer:
mixer [17]2 years ago
3 0

Answer:

30

Step-by-step explanation:

a right angle is 90 degrees so if it split into two parts and one is 30 degrees and the other is x (an unknown) you could do 90-30 to get 60 but since it is 2x but has to equal 60 it is going to be 30 because 30 times 2 is 60

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If BC = 5, DE = 9, and AB = 4, what is the length of AD?<br><br><br> 7<br> 8<br> 7.2<br> 7.5
steposvetlana [31]

There are two triangles here: ABC and ADF. These triangles are similar, and thus proportional. So, we can set up a proportion between the left side of each triangle and the base of each triangle.

AB / AD = BC / DE

4 / (4 + BD) = 5 / 9

---AD is made up of AB and DB. We know AB, but not BD, so we need to find its value to find the length of AD.

5(4 + BD) = 9 x 4

20 + 5BD = 36

5BD = 16

BD = 3.2

AD = AB + BD

AD = 4 + 3.2

AD = 7.2

Hope this helps!

8 0
3 years ago
How do you solve this. Plz help
BartSMP [9]
It should be 2.75 idk why it is not an option
3 0
3 years ago
(1 + 9.8k)(2.8) simplified
o-na [289]

Answer:

<em>2.8 + 27.44k</em>

Step-by-step explanation:

<u>Algebraic Simplification</u>

The rules of algebra can be applied in some situations to make expressions simplified or expanded, according to the specific needs of each problem.

We are given the expression:

(1 + 9.8k)(2.8)

It's a sum and a product. We cannot add the independent term with the variable term, so we can only multiply the factor and the contents of the parentheses as follows:

(2.8)1 + (2.8)9.8k

Operating:

2.8 + 27.44k

5 0
2 years ago
If<br> f(x) = x^2 + 2x - 4<br> and<br> g(x) = 3x + 1<br> Find<br> f(g(x)) = ?
Ray Of Light [21]

Answer;

f (x) = 2x-4g (x) =x^2

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Convert 12 km/hr into m/min​
yawa3891 [41]

Answer:

200 meters per minute

Step-by-step explanation:

12/60 since hr into minutes

0.2 x 1000 since km and meters

7 0
3 years ago
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