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HACTEHA [7]
3 years ago
12

If the following quadrilateral is a parallelogram select the conditions that are met with the given information. If none of the

conditions are met, select "not a parallelogram".

Mathematics
1 answer:
krek1111 [17]3 years ago
6 0

Answer:

c, d and a? srry if its wrong

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If pentagon ABCDE is rotated 180 degrees around the origin to create pentagon A’B’C’D’E’, what is the ordered pair of point A’?
Semmy [17]

Answer:

(A)

Step-by-step explanation:

Point A is at (-2,4)

Rule of a 180° rotation about the origin: (x,y) --> (-x,-y)

Using the rule, (-2,4) will become (2,-4).

A' should be (2,-4) or Option A.  

4 0
3 years ago
PLZ HELPDONT TROLL IM NICE
marysya [2.9K]

Answer:

0.25y +7y

Step-by-step explanation:

REMEMBER DISTRIBUTION

7 0
3 years ago
Which expression is equivalent to 3n+2(1-4n)?<br> A. 2-n<br> B. 2-5n<br> C. 2+11n<br> D. 2-11n
lutik1710 [3]

Answer:

The Answer is B. 2-5n

Step-by-step explanation:

Multiply 2 by everything within the parenthesis and it leaves you with 3n+ 2-8n

Then combine like terms which are +3n and -8n which leaves you with -5n

8 0
3 years ago
What is the approximate length of a pendulum that takes 2.4 pi seconds to swing back and forth?
sertanlavr [38]

Answer:

The approximate length of the pendulum is 46.08 ft

Step-by-step explanation:

The time (t) of pendulum oscillation is given as;

t = 2 \pi\sqrt{\frac{L}{g} }

where;

L is the length of the pendulum

g is acceleration due to gravity = 9.8 m/s² = 32.15 ft/s²

t is the time given as 2.4 π seconds

From the equation above, make L the subject of the formula;

t = 2 \pi\sqrt{\frac{L}{g} } \\\\\frac{t}{2\pi} = \sqrt{\frac{L}{g} }\\\\(\frac{t}{2\pi} )^2 =\frac{L}{g}  \\\\L = g*(\frac{t}{2\pi} )^2\\\\L = 32.15*(\frac{2.4 \pi}{2\pi} )^2\\\\L = 32.15 *1.44\\\\L = 46.296 \ ft

Therefore, the approximate length of the pendulum is 46.29 ft

The closest option is 46.08 ft

8 0
3 years ago
49w^2-4=0. Simplied fraction?
HACTEHA [7]

Answer:

{-2/7, 2/7}

Step-by-step explanation:

Here you're being asked to solve the given equation 49w^2-4=0 for w with the hint that the solutions are fractions.

49w^2-4=0 is the product of the sum and difference of two squares:

(7w - 2)(7w + 2) = 0

Setting each factor equal to zero and solving for w, we get:

{-2/7, 2/7} as the solutions.

8 0
3 years ago
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