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il63 [147K]
3 years ago
7

Pythagorean stack how long is this side

Mathematics
1 answer:
Alika [10]3 years ago
6 0
Pythagorean stack i believe its 23 on the side
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Line n passes through points (7, 12) and (4, 15). What is the slope of a line that
vitfil [10]
So anytime we have a slope and want to find the slope of a perpendicular line, we just have to remember a perpendicular line's slope is the negative reciprocal (reciprocal means flip the fraction). So if we had a slope of 3/4, the slope perpendicular to it would be - 4/3.


First we need to find our slope, to do this we take the change in y over the change in x like so:

(15-12)/(4-7) = - 3/4

The slope perpendicular to this is 4/3.
3 0
3 years ago
Write the equation of the line that passes through (0, 3) and is parallel to the line 3x + 5y = 6.
Pavel [41]
Please, see the offered decision:
1) common equation for lines is y=kx+b. If k₁=k₂ (for line 1 and line 2) ⇒ 'line 1' || 'line 2'.
2) for line 3x+5y=6   k= -3/5. It means (according to item 1) for unknown line k is the same (-3/5).
3) using points (0;3) it is easy to find parameter b (x=0, y=3) via y=kx+b:
3=0*(-3/5)+b ⇔ b=3.
4) finaly (k=-3/5; b=3):
y=- \frac{3}{5}x+3 \ or \ 3x+5y=15
3 0
2 years ago
How do we identify the slope and the y-intercept for each of the function representations?
Gelneren [198K]

Answer:

Step-by-step explanation:

for y intercept

we calculate f(0) and the value is y intercept

for the slope we have 2 points (x1,y1)  and (x2,y2)

the slope is (y2-y1)/(x2-x1)

3 0
3 years ago
Part A: simplify the expression 6(2k+5)-20 using the distributive properties=-------------
ikadub [295]

Answer:

$160

Step-by-step explanation:

Part A-

Step 1: 6(2k+5) - 20

Step 2: 6(2k) + 6(5) - 20

Step 3: 12k + 30 - 20

<h2><u>12k + 10</u></h2><h2><u></u></h2><h3>Part B-</h3><h3>12(12.50) + 10</h3><h3>150 + 10</h3><h2><u>$160</u></h2>
4 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!!!
Montano1993 [528]
X is equal 25 degrees. Line ac goes though the parallel lines. So bcd is x. Cdb is 180-50 equals 130. All angles add to 180. 180-130 equals 2X. So x equals 25.
5 0
2 years ago
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