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Katarina [22]
3 years ago
7

Find the missing angles... both 4 and 5 separately

Mathematics
1 answer:
Oliga [24]3 years ago
4 0

Answer:

4 : 34

5 : 102

Step-by-step explanation:

This problem can be solved by using concept of co-interior angles.

co interior angles are those angles which lie on the same of parallel lines when the parallel lines are cut by transversal.

sum of co interior angles is 180 degrees.

In the problem 4 and 5 then angle given and missing angles are co-interior angles.

Problem 4

146 + ? = 180

? = 180 -146 = 34

Thus missing  angle in problem 4 is 34 degrees

Problem 5

78 + ? = 180

? = 180 -78 = 102

Thus missing  angle in problem 5 is 102 degrees

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You’re given three angle measurements of 30°, 70°, and 80°. How many triangles can you construct using these measurements?
IRISSAK [1]

Answer:

You can make 6 triangles

Step-by-step explanation:

You can make 6 triangles because you do 3 permutation. Which is 3 times 2 times 1 which is equal to 6.

5 0
3 years ago
5(3+t)-3(t+1) I don't understand how to do this problem.
shtirl [24]
Okay, just break it up so you're not overwhelming yourself or anything :)
So here, do it in steps-

Let's do 5(3 + t) first:
Distribute the 5, or in non-mathematical terms, just multiply 5 by 3 and t. This will give you 15 + 5t.

Now onto -3(t + 1):
Again, just multiply -3 by t and 1. This will come out to: -3t - 3.

*Note: the 3 is negative because it's "MINUS 3" in the original equation and remember that any number times a negative, if it isn't negative itself, will turn out to be negative.... (aka "-" x "-" = "+" | "+" x "+" = "+" | "-" x "+" = "-")*

ANYWAY
Now just put both answer together and you get:
15 + 5t -3t - 3. You can only add and minus the LIKETERMS (which are the things that are the same) - in this case, the liketerms are 15 and -3 ,,,, AND 5t and -3t.

15 - 3 = 12
5t - 3t = 2t

12 + 2t is your final answer. Hope that helps! :)
7 0
2 years ago
X + 1/2 = 17 need help fast
Paha777 [63]

Answer:

x=16.5

Step-by-step explanation:

-1/2 on both sides

17-0.5 or 1/2=16.5

7 0
2 years ago
Read 2 more answers
Find all the real cube roots of 1000/27 <br><br><br> 10/3 <br> 10/9 <br> -10/9 <br> -10/3
gulaghasi [49]
Can you do prime factoriztion

1000
100 * 10
10 * 10 * 10

27
9 * 3
3 * 3 * 3

cube root (1000/27) = 10/3
7 0
2 years ago
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Find the slope if it exits 2x-5y=6
77julia77 [94]
In standard form, slope is always the negative of the x coefficient over the y coefficient.

If you dont want to have that memorized, you can use algebra to get the equation of the line into slope-intercept form (y=mx+b)

Set it equal to y

2x - 5y = 6
2x = 5y + 6
2x - 6 = 5y
(2/5)x - 6/5 = y
Now it is in slope intercept form. In slope intercept form, the coefficient multiplying with x is the slope of the line. Therefore, the slope equals 2/5.
6 0
3 years ago
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