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3 years ago

Which statement is true about the equations –3x + 4y = 12 and x – y = 1?

Mathematics

2 answers:

Katarina [22]3 years ago

8 0

Answer:

Step-by-step explanation:

Its C just did the test

RSB [31]3 years ago

7 0

The system of the equations has no solution; the two lines are parallel.

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Tessie has a volleyball Game at 6:45 PM. She needs to be there 15 minutes early to warm up for the game, and it takes her 40 min

zepelin [54]

She needs to leave at 3:55 in order to get there 15 minutes before the game :) hope this helps!

5 0

3 years ago

Plz help for 60 points

ycow [4]

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5. 37
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Happy learning! - Ann

8 0

4 years ago

Read 2 more answers

1. Between which two perfect squares is √130? 2. Which two integers is √82 between?

max2010maxim [7]

Q1:-
-------
12*12= 144
11*11=121
so the answer of 1. lies between 11 and 12

Q2:-
--------
9*9=81
10*10=100
so sqrt(82) is between 9 and 10

5 0

3 years ago

Read 2 more answers

Find the circumference of the circle with the diameter of 5 in.

irina1246 [14]

Step-by-step explanation:

Data:

circumference=?

$c = \pi \times d \\ c = 3.14 \times 5 \\ c = 15.7 \\$

7 0

3 years ago

Consider a city whose streets are laid out as a grid. Streets run north-south or east-west. A visitor is dropped off by a cab at

Ann [662]

Answer:

84 possible paths

Step-by-step explanation:

Given

$N =3$ --- 3 blocks north

$E = 6$ --- 6 blocks east

Required

Number of distinct path

To solve this question, we make use of the following formula

$^{m+n}C_n \ =\ ^{m+n}C_m$

The above formula implies that;

On a single path, there is a total of m + n steps to get to a particular position, where each path is either in m direction or n direction.

In this case:

$m = 3$

$n = 6$

So, we have:

$^{m + n}C_n = ^{3+6}C_6$

$^{m + n}C_n = ^9C_6$

Apply combination formula

$^{m + n}C_n = \frac{9!}{(9-6)!6!}$

$^{m + n}C_n = \frac{9!}{3!*6!}$

Expand the numerator

$^{m + n}C_n = \frac{9*8*7*6!}{3!*6!}$

$^{m + n}C_n = \frac{9*8*7}{3!}$

Expand the denominator

$^{m + n}C_n = \frac{9*8*7}{3*2*1}$

$^{m + n}C_n = \frac{504}{6}$

$^{m + n}C_n = 84$

Hence, there are 84 possible paths

$^{m + n}C_m$ will also give the same result

3 0

3 years ago