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saul85 [17]
3 years ago
7

Need help finding the value of x

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
4 0

Answer:

The value of x is 26.

Step-by-step explanation:

In a triangle, the total angles is 180°. In order to find the value of x, you have to add up all the angles in terms of x and make it equals to 180°

2x + 3x + 50 = 180

5x + 50 = 180

5x = 180 - 50

5x = 130

x = 130 ÷ 5

x = 26

Reika [66]3 years ago
4 0

As we know that,

Sum of all angles of triangle = 180°

Given,

Angles are 2x , 3x and 50°

Now,

\rightarrow \: 2x + 3x + 50 = 180

When plus sign goes to another side then,it become minus.

\rightarrow \: 5x = 180 - 50

\rightarrow \: 5x = 130

\rightarrow \: x =  \cancel \dfrac{130}{5}

\rightarrow \: x = 26

Hence,the value of x is 26°.

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Which answer describes the type of sequence? 200, 40, 8, 1.6, ...
GalinKa [24]

Answer:

Option 1  the given sequence is a geometric.

Step-by-step explanation:

We have been given with the series

200,40,8,1.6

Arithmetic sequence is the sequence in which difference between consecutive terms is same that is common difference d

d=a_2-a_1

d=40-200=-160   herea_2=40,a_1=200

d=8-40=-32          herea_2=8,a_1=40

We can see the difference is not same

Hence, the given sequence is not arithmetic sequence.


Geometric sequence is the sequence in which ratio of consecutive terms is same that is common ratio r

r=\frac{a_2}{a_1}

r=\frac{40}{200}=\frac{1}{5}   herea_2=40,a_1=200

r=\frac{8}{40}=\frac{1}{5}          herea_2=8,a_1=40

r=\frac{1.6}{8}=\frac{1}{5}             herea_2=1.6,a_1=8

We can see the ratio is  same.

Hence, given sequence is geometric

Therefore, Option 1 is correct given sequence is geometric.

7 0
3 years ago
Find the slope of a line given the following two points: (4, 3) and (5, 2). 1 -1 2 -2
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Given two points; (x₁,y₁) and (x₂,y₂) the slope is:

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In this case:
(4,3)
(5,2)

m=(5-4)/(2-3)=1/-1=-1

Answer: the slope is -1
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