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Lelechka [254]
3 years ago
13

Anybody know the answer to this

Mathematics
1 answer:
Tems11 [23]3 years ago
8 0

Answer:

1)  \sqrt{106}

2) \sqrt{187

3) x=30

4) x= -4/3

Step-by-step explanation:

Use the Pythagorean theorem to find the missing angle.

In the formula, the c is the length of hypotenuse, so

c=\sqrt{9^2+5^2} \\c=\sqrt{106}

3^2+b^2=14^2\\b^2=196-9\\b=\sqrt{187}

20*9=6x

180=6x

x=30

4(3x+2)=6x

12x+8=6x

6x=-8

x= -4/3

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Write the equation of a line perpendicular to 2x + 3y = 4 and passing through (-3,-5).
Tasya [4]

Answer:

Step-by-step explanation:

A line perpendicular to the given line has a slope that is the negative inverse of the reference line.  

Rewrite the given equation in the format of y=mx+b, where mi is the slope and b is the y-intercept (the value of y when x = 0.

2x + 3y = 4

3y=-2x+4

y = -(2/3)X + (4/3)

The reference slope is -(2/3).  The negative inverse is (3/2), which will be the slope of a perpendicular line.  We can write the new line as:

y = (3/2)x + b

Any value of b will still result in a line that is perpendicular.  But we want a value of b that will shift the line so that it intersects the point (-3,-5).  Simply enter this point in the above equation and solve for b.

y = (3/2)x + b

-5 = (3/2)(-3) + b

-5 = -(9/2) + b

-5 = -4.5 + b

b = - 0.5

The equation of the line that is perpendicular to 2x + 3y = 4 and includes point (-3,-5) is

y = (3/2)x - 0.5

6 0
1 year ago
the perimeter of a picture frame is 24 inches if the width of the picture frame 5 inches what is the length of the picture frame
Ket [755]
You would divide 24 by 5 so the length would end up being: 4.8 in 
                  Hope it helps!
7 0
3 years ago
If it is 8:50 a.m., what will the time be 4 hours and 20 minutes later?
Stels [109]

Answer:

1:10 pm

Step-by-step explanation:

<em>60 minutes in an hour</em>, so

8:50am + <u>4 hours</u> = 12:50pm

12:50pm + <u>20 minutes</u> = 1:10pm

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3 years ago
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Elanso [62]

Answer:

The 1st, 3rd, and 5th statements are correct.

Step-by-step explanation:

YZ has the same angle as XY, so the length is the same.

A^2+B^2=C^2 shows that XZ equals 9 sqrt 2 cm.

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3 years ago
What is the factored form of 8x^2+18x+9?
forsale [732]
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5 0
3 years ago
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