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finlep [7]
3 years ago
10

How many points of intersection do the following lines have y=3x-1 and 2y-6x=-2

Mathematics
1 answer:
Ugo [173]3 years ago
4 0
Infinity interaction points, the same line.
2y=6x-2 /2
y = 3x-1

Same line,
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Which of the following is one solution to the expression (ax + b)(cx - d) = 0 ?
V125BC [204]
We know that
if <span>(ax + b)(cx - d) = 0
then
</span><span>(ax + b)= 0-----> ax=-b------> x=-b/a
and
</span><span>(cx - d) = 0-----> cx=d------> x=d/c

therefore

the answer is the option
</span><span>C. -\frac{b}{a}</span>
4 0
4 years ago
What is the longest line segment that can be drawn in a right rectangular prism that is 15 cm​ long, 11 cm​ wide, and 10 cm​ tal
sammy [17]

Answer:

  √446 ≈ 21.12 cm

Step-by-step explanation:

The longest dimension of a rectangular prism is the length of the space diagonal from one corner to the opposite corner through the center of the prism. The Pythagorean theorm tells you the square of its length is the sum of the squares of the dimensions of the prism:

  d² = (15 cm)² +(11 cm)² +(10 cm)² = (225 +121 +100) cm² = 446 cm²

  d = √446 cm ≈ 21.12 cm

The longest line segment that can be drawn in a right rectangular prism is about 21.12 cm.

_____

<em>Additional comment</em>

The square of the face diagonal is the sum of the squares of the dimensions of that face. The square of the space diagonal will be the sum of that square and the square of the remaining prism dimenaion, hence the sum of squares of all three prism dimensions.

8 0
3 years ago
A stone is an English measure of weight. There are 14 lb in 1 stone and 2.2 lb in 1 kg.
AveGali [126]
We should use lb to convert weight to kg

let unknown lb be = X
14 lb = 1 stone
X lb = 9 stone
Cross multiply : X × 1 = 9 × 14
X = 126 / 1 = 126 lb

9 stone = 126 lb
let unknown value of kg be = Y
2.2 lb = 1kg
126 lb = Y kg
Cross multiply : 2.2 × Y = 126 × 1
Y = 126 / 2.2 = 57.3 kg

So 9 stone = 126 lb = 57.3 kg

HOPE IT HELPED !!
3 0
3 years ago
Read 2 more answers
Someone help me out with this
Ipatiy [6.2K]

Answer:

v = 729 in³

Step-by-step explanation:

v = 9 * 9 * 9

v = 729 in³

7 0
3 years ago
Pumpkin Weights (in lbs.)
levacccp [35]

Answer:

<h2>(A). 30</h2>

Hope's its helps

7 0
3 years ago
Read 2 more answers
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