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boyakko [2]
2 years ago
12

Exterior angle theorem what is the value of u? I’m willing to give brainlist!!

Mathematics
1 answer:
KengaRu [80]2 years ago
4 0
Answer: 45

Explanation: two angles that form a Line always equal 180 degrees, so we start with the equation 180-u+47, which is the measure of the missing interior angle measure. All of the angles inside of a triangle also equal 180 degrees, so we can set up this equation to find U:
u-18+u+(180-u+47)=180
We can start to simplify by first simplifying what’s inside the parenthesis:
u-18+u+153-u=180
Then you solve the equation to get
U=45 degrees
You might be interested in
Keiko has seven colors of lanyard. She uses three different colors to make a keychain. How many different combinations can she c
AleksAgata [21]
Combination = doesn't matter what order
Permutation = order matters

There are <u>two</u> methods to work out combinations.

Method 1 List out possibilities
123 124 125 126 127 134 135 136 137 145 146 147 156 157 167
234 235 236 237 245 246 247 256 257 267
345 346 347 356 357 367
456 457 467
567

For a total of 35 combinations.

Method 2 Use a formula.
It's a rather complicated one, so only use it if you have a lot of possibilities.

\frac{n!}{r!(n-r)!} = \frac{7!}{3!(7-3)!} = \frac{7!}{3!*4!} = \frac{7*6*5*4*3*2*1}{3*2*1*4*3*2*1} = \frac{7*6*5}{3*2*1}=\frac{210}6=35

(n is the number of choices, r is the amount you choose, and ! is a function that multiplies together all numbers down to 1)


7 0
3 years ago
PLEASE HELP<br><br> How do I solve 7,9, and 10 also what are the answers?
Kobotan [32]
7.
360 degrees- the other angles = x
4 0
2 years ago
Solve for x<br> Зx = 6x - 2
allsm [11]

Answer: The answer is x=2/3

Step-by-step explanation: This is the linear equation to solve it we have to take 6x to the other the sign will change to be negative then divide both sides by 3

3x=6x-2

3x-6x=-2

3x=-2

x=2/3

4 0
3 years ago
Read 2 more answers
Leah ran the track 8 times. She ran a total of 2,000 meters. How many meters equals 1 lap?
Vikki [24]

Answer:

250m

Step-by-step explanation:

2000m/ 8laps = 250m

5 0
3 years ago
Item 8 factor −5 out of −10a−25.
egoroff_w [7]

To factor a number out of an expression means to divide each term of the expression by that number.

So, if you want to factor a from the expression x+y+z, you'll write it as

a\left(\dfrac{x}{a}+\dfrac{y}{a}+\dfrac{z}{a}\right)

So, in your case, when you divide both terms by -5 you get

-10a \div (-5) = 2a,\quad -25\div (-5) = 5

So, the expression becomes

-10a-25 = -5(2a+5)

5 0
3 years ago
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