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stepan [7]
3 years ago
10

*use a 2 proof column to answer*

Mathematics
1 answer:
IRISSAK [1]3 years ago
6 0

Answer:

5

Step-by-step explanation:

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Suppose a triangle has sides a, b, and c, and let theta be opposite the side of length a. If cos theta < 0, what must be true
katrin2010 [14]
If \cos \theta\ \textless \ 0, then angle \theta is obtuse and triangle with sides a, b, c is obtuse triangle.
In an arbitrary triangle can be only one obtuse angle, and the side which lies opposite to the largest angle is the largest. Then since <span>angle \theta is opposite the side of length a</span>  you can conclude that a>c and a>b.



6 0
3 years ago
Nicole has a collection of dolls that weigh 2/2 gram. How much would 2 dolls weigh?
SashulF [63]

Answer:

2

Step-by-step explanation:

Because 2/2 equals 1, and 1 * 2 = 2

7 0
3 years ago
Please answer correctly !!!! Will mark brainliest !!!!!!!
enyata [817]

Answer:

22

Step-by-step explanation:

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5 0
3 years ago
127.5 is what percent of 51?
poizon [28]
Multiply 1.275 with 51 to get the answer (65.025)
8 0
3 years ago
Deedra has the equations for lines A and B. When she solved for the point where these two lines intersect, she ended up with the
KonstantinChe [14]

we can take a peek at two of those lines  hmmm say y = 5x + 3 and y = 5x + 7.

let's notice, those two equations for those lines are in slope-intercept form, so let's solve the system.

since y = y then

5x + 3 = 5x + 7

3  = 7    what the?

well, notice, both lines have the same slope of 5, but different y-intercept, one has it at y = 3 and the other at y = 7, what does that mean?

it means that both lines are parallel to each other, one may well be above the other, but both are parallel, and since a solution to the system is where their graphs intersect, well, parallel lines never touch, so a system with two parallel lines has no solutions.

3 0
3 years ago
Read 2 more answers
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