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Novosadov [1.4K]
3 years ago
5

Which statement is true ? I will give brainliest to the person who answers correctly.

Mathematics
1 answer:
Alja [10]3 years ago
5 0
Answer: A
Explanation: Area of a rectangle = length * width= 2 * 5n = 10n. So Jenny was correct and Alan was wrong (because the length of the rectangle is not 2n; it is just 2)
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2 + 3m = 11<br><br> so m = what
dybincka [34]

Answer:m=3

Step-by-step explanation:

11-2=9

9/3=3

8 0
3 years ago
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HELP ME PLEASE! I WILL GIVE BRAINLIEST LOTS OF POINTS
azamat
Number the tables as follows:

1  2
3  4

Eliminate 3 and 4 immediately, because for x = 2 the y values are wrong (3 and 1).

In tables 1 and 2, the input (1) produces the correct output (-1).

So we have to determine which table agrees 100% with the system of equations given.

Comparing tables 1 and 2, row by row, we see that their contents are the same EXCEPT for the first rows.  So focus on determing which of those 2 rows displays values that satisfy both given equations.

First I looked at y=2x-5, and subst. -1 for x.  I got -7, which is correct in table 1 but not in table 2 (where the value would be -13).

Thus, table 1 correct represents the solution of the system of equations.
6 0
3 years ago
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A pyrotechnician plans for two fireworks to explode together at the same height in the air. They travel at speeds shown below. F
ICE Princess25 [194]

Answer:

both fireworks will explode 4.5 seconds after  Firework B launches

Step-by-step explanation:

Given;

speed of firework A, V_A= 360 ft/s

speed of firework B, V_B = 340 ft/s

If the two fireworks explodes at the same height, then the height attained by the two fireworks are equal.

let the distance traveled by each firework before explosion = d

Distance = speed x time

Distance A = Distance B

speed A x time = speed B x time

let the time both fireworks explodes after Firework B launches = t

(V_A) t = (V_B ) t

360t = 340t

if firework B is launched 0.25 s before Firework A, for the time of the two fireworks to be equal since we are considering time (t) after 0.25 seconds, we will have;

360(t-0.25) = 340t

360t  - 90 = 340t

360 t - 340 t = 90

20 t = 90

t = 90/20

t = 4.5 seconds

Therefore, both fireworks will explode 4.5 seconds after  Firework B launches

7 0
3 years ago
Choose the measures of center that you can find from this data display.
Sveta_85 [38]
I think none of them but I’m not sure.
5 0
3 years ago
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Write a similarity statement comparing the two triangles.<br> △BDC∼△EDA<br> △BCD∼△EDA<br> △EAD∼△BDC
telo118 [61]

Answer:

  • A. △BDC∼△EDA

Step-by-step explanation:

<u>Corresponding angles are:</u>

  • ∠A ≅ ∠C
  • ∠D ≅ ∠D
  • ∠B ≅ ∠E

Use same order of corresponding vertices in the name of triangles.

<u>Choices are:</u>

  • △BDC∼△EDA, correct
  • △BCD∼△E<u>DA</u>, incorrect should be △BCD∼△EAD
  • △EAD∼△B<u>DC</u>, incorrect should be △EAD∼△BCD
6 0
2 years ago
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