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Doss [256]
4 years ago
12

Find the value of X and explanation please

Mathematics
1 answer:
worty [1.4K]4 years ago
3 0
150 and the unknown angle next to it equal 180.

180 - 150= unknown angle
30 degrees= unknown angle

Then the triangle also equals 180 so we add the angles and solve for x

3x + 2x + 30= 180
5x + 30= 180
5x= 150
x= 30

3x= 3(30)= 90 degrees
2x= 2(30)= 60 degrees
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-(-5 -6x( = 4(5x + 3)
rjkz [21]

Answer: The answer to this question is x=-1/2

Step-by-step explanation: Multiply the left hand side by - and the right hand side by 4 in order to remove the brackets. After removing the brackets we get: 5+6x=20x+12.

Then we add the like terms.

5-12=20x-6×

-7=14x

x=-1/2

3 0
3 years ago
TaraTara ran 3 laps around her neighborhood for a total of 1 mile yesterday ​
Delicious77 [7]

2 laps

1 lap would be 1/3 a mile therefore 2 laps would be 2/3 a mile

7 0
4 years ago
Select the expression that is equivalent to (x - 1)2.
Snowcat [4.5K]

Answer:

B.

Step-by-step explanation:

8 0
4 years ago
A store had 913 sodas, both diet and regular. The ratio of diet sodas to regular sodas was 8:3. How many diet sodas were there?
Elodia [21]

Answer:

<h2>There are 664 diet soda</h2>

Step-by-step explanation:

Step one:

given data

total soda= 913

we are told that the ratio of diet sodas to regular sodas is 8:3

this means that for every 8 diet soda there is 3 regular soda

the total ratio is 8+3=11

Step two:

we are going to use part to all principle

let the diet soda be x

8/11=x/913

cross multiply

11x=913*8

divide both sides by 11

x=913*8/11

x=7304/11

x=664

There are 664 diet soda

5 0
3 years ago
Prove that there exists a unique real number solution to the equation x3 + x2 − 1 = 0 between x = 2/3 and x=1
ziro4ka [17]
Replace each of the x values given to see if they give 0. 

0=(2/3)³+(2/3)²-1 
0=(8/27)+(4/9)-1 
0≠-0.259

0=(1)³+(1)²-1 
0≠1

Therefore, you can see that the solution would have to be between 2/3 and 1.

Hope I helped :) 
7 0
4 years ago
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