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sveta [45]
2 years ago
11

Interior and Exterior of Triangles

Mathematics
2 answers:
Vika [28.1K]2 years ago
5 0
Top

You say 56+x+50+82=180
Then you add 56 Nd x
Then you add 50 Nd 82
And that would 132
So you say 56x+132=180
Then you bring your railroad tracks
Subtract 132 on both sides
And that would be 48
Bring your 56x down
Then you divide 56 on both sides
And that would be 1.16
vodomira [7]2 years ago
4 0

Answer:

the top one is -8 and the bottom is 11

Step-by-step explanation:

please mark brainliest :))

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A truck is said to get 18 miles per gallon on a highway, but this value can fluctuate,
Ratling [72]

Answer: 14 miles ≤ D ≤ 22 miles.

Step-by-step explanation:

The mean distance traveled per gallon, is 18 miles.

But this can fluctuate, at most, by 4 miles.

Because we have here the "at most", we know that we should use the ≤, ≥ symbols.

Then, if the mean is 18mi, the range of possible distances traveled per gallon is:

(18 miles - 4 miles) ≤ D ≤ (18 miles + 4 miles)

Where D is the distance.

14 miles ≤ D ≤ 22 miles.

So the truck can get between 14 miles and 22 miles per gallon on the highway.

4 0
3 years ago
The expression n2 + n represents the total number of blocks used in the nth figure of a pattern. Use the equation n2 + n = 56 to
Brrunno [24]

We have to solve this quadratic equation n^{2}+n=56 for n to get <em>which figure has 56 blocks</em>.

n^{2}+n=56\\n^{2}+n-56=0

For middle term factorization, we need <em>two numbers that multiplied gives us -56 and added gives us 1 (coefficient of n).</em>

<em>Such two numbers are </em><em>8</em><em> and </em><em>-7</em><em>. We can now write,</em>

<em>n^{2}+n-56=0\\(n+8)(n-7)=0\\n=-8, 7</em>

<u><em>"There is no negative figure number possible, so we disregard -8"</em></u>

Our answer is 7.


ANSWER: The 7th figure has 56 blocks.


3 0
3 years ago
Read 2 more answers
I don’t know if it’s A or B
lara31 [8.8K]

Answer:

A

Step-by-step explanation:

this is true due to the ratio of a 30-60-90 triangle, which is 1-2-sqrt(3). The 12 corresponds to the sqrt(3), which means that the 1 corresponds to 4sqrt3 and the 2 to 8sqrt3.

:)

7 0
2 years ago
Read 2 more answers
Which figure has all of the following:
Marta_Voda [28]

Answer:

Step-by-step explanation:

I think its B and K, they both have 2 sets of parallel lines and they have no congruent sides. Also they look similar. Sorry if this doesn't help.

7 0
2 years ago
Which property is shown? 2.3 + (-1.2 + 9.6) = (2.3+ (-1.2)) + 9.6
abruzzese [7]

Answer:

Associative property of addition

Step-by-step explanation:

A change of grouping is the associative property of addition.

6 0
3 years ago
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