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saw5 [17]
3 years ago
10

Find the measure of angle A

Mathematics
1 answer:
Gre4nikov [31]3 years ago
7 0

Answer:

21 degrees

Step-by-step explanation:

Triangles have a total angle of 180 degrees.

This makes our equation:

3x+3+4x+135=180

Subtract 135 from both sides and combine like terms

7x + 3 = 45

Subtract 3 from both sides

7x = 42

Divide both sides by 7

x = 6

Plugging the number in:

3x + 3 =

3(6) + 3 =

21

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The length of a table is 8 times longer then it’s width. If the perimeter is 72, how wide is the table?
Andrews [41]

Answer:

4 units wide

Step-by-step explanation:

Let the width of the table be 'w'

Given:

Perimeter of the table is, P=72

The perimeter of the rectangular table is given as the sum of all the sides of the rectangle. The sides include two lengths and two widths.

Length of the table is 8 times longer than its width. Therefore,

Length,L=8w

Now, perimeter is given as:

P=2L +2w\\P=2(8w)+2w\\P=16w+2w\\P=18w\\w=\frac{P}{18}

Now, plug in 72 for 'P' and solve for 'w'. This gives,

w=\frac{P}{18}\\\\w=\frac{72}{18}\\\\w=4

So, the table is 4 units wide.

6 0
4 years ago
NEED HELP ASAP PLEASE!!!!!!!!!
ankoles [38]

Answer:

1) m=-7/5

2) m=-7/5

3) parallel

Step-by-step explanation:

the first part:

graph the points and then find the slope

m=-7/5

the second part:

slope= m in y=mx+b

m=-7/5

the last part:

they are parallel because they have the same slope

5 0
3 years ago
Read 2 more answers
Help please<br> n/9 + 2/3 = -2/3
Free_Kalibri [48]

Answer:

n = - 12

Step-by-step explanation:

n/9 + 2/3 = - 2/3

n/9 = - 2/3 - 2/3

n/9 = - 4/3

n = 9(- 4/3)

n = -36/3

n = - 12

5 0
3 years ago
If you remove my question you not big brain
guapka [62]

Answer:

Whats your question?

Step-by-step explanation:

5 0
3 years ago
I am an even,3 digit palindrome.(example:464). The product of the digits is 8. What number am I?
antiseptic1488 [7]
181 is the only palindrome that has digits that when multiplied together give you 8.

Hope that helps :)
3 0
3 years ago
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