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xz_007 [3.2K]
3 years ago
12

Add together 2350mm 3.42cm 11/2m and 1.45m

Mathematics
1 answer:
Artyom0805 [142]3 years ago
6 0
9.3342meters because you convert 2350mm into m which is 2.35m, + and also convert 3.42cm to m which is 0.0342 then + 1.45m +11/2m= 9.3342m
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Determine whether AB←→ and CD←→− are parallel, perpendicular, or neither. A(−1, −4), B(2, 11), C(1, 1), D(4, 10)
Paladinen [302]
Slope of AB
m = (y2 - y1)/(x2 - x1)
m = (11 - (-4))/(2 - (-1))
m = (11 + 4)/(2 + 1)
m = 15/3
m = 5
The slope of line AB is 5

Slope of CD
m = (y2 - y1)/(x2 - x1)
m = (10 - 1)/(4 - 1)
m = 9/3
m = 3
The slope of CD is 3

Since the two slopes are not equal, this means the lines are not parallel.
Since (slope of AB)*(slope of CD) = 5*3 = 15 is not equal to -1, this means the lines are not perpendicular

Answer: Neither (not parallel; not perpendicular)

4 0
4 years ago
Surveyors need to measure the distance across a pond. they created similar triangles in this picture.
leonid [27]

Answer:

Therefore the Distance across the Pond is

x=391\ ft

Step-by-step explanation:

Given:

Triangle are Similar

AB = 90 ft

AC = 170 ft

BD = 207 ft

DE = x

To Find:

x = ?

Solution:

In Δ ABC and Δ DBE

∠A ≅ ∠D …………..{ measure of each angle is 90° given }  

∠ABC ≅ ∠DBE ……….....{Vertical Angle Theorem}  

Δ ABC ~ Δ DBE ….{Angle-Angle Similarity test}  

If two triangles are similar then their sides are in proportion.  

\dfrac{AB}{DB} =\dfrac{AC}{DE} \textrm{corresponding sides of similar triangles are in proportion}\\  

Substituting the values we get

\dfrac{90}{207} =\dfrac{170}{x}\\\\x=23\times 17=391\ ft

Therefore the Distance across the Pond is

x=391\ ft

8 0
3 years ago
Select the correct answer.
tensa zangetsu [6.8K]

Answer:

5y - 4x = 5. This gives you your points with a slope of 4/5

6 0
4 years ago
Read 2 more answers
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Dominik [7]

Answer:

14,400

Step-by-step explanation:

Hope this helpfull..but if it's not,im so sorry

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3 years ago
Mia is six years older than her sister Natalie the sum of their age is 48 how old is Natalie
natta225 [31]

Answer: 21,

Step-by-step explanation: Her sister is 27, so she’s 21. = 48.

6 0
3 years ago
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