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Gelneren [198K]
3 years ago
9

Two groups of students were asked how far they lived from their school. The table below shows the distances in miles:

Mathematics
1 answer:
Finger [1]3 years ago
3 0
<span>The best answer is C because 2.17 x 2=4.34

</span><span>C. Its value for group A is double the value for Group B.</span>
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What is the value of the function when x = 4?<br><br> y = 3x + 7
adelina 88 [10]

2x - 3y = 7 and -3x + y = 7..multiply Equation 2 by THREE and add to Equation 1
-9x + 3y = 21...........................watch the y's disappear
-7x........ = 28
x = -4
substitute -4 instead of x in either of the ORIGINAL equations

2x - 3y = 7
2(-4) - 3y = 7
-8 -3y = 7..........add 8 to both sides
-3y = 15
y = -5

im not sure


8 0
3 years ago
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What is the distance between (-5, -8) and (-1, -16)
yulyashka [42]

(4,-8)

Step-by-step explanation:

from -5 to -1 you would have to count from 1 to 4. and do the same for -8 to -16

4 0
3 years ago
Seth earns 152 in 4 days. At that rate how many days will it take him to earn 532
djverab [1.8K]
Please use $ signs when discussing US currency.  

<span>$152 in 4 days. At that rate how many days will it take him to earn $532

One way to solve this is to set up and solve an equation of ratios:

 $152         $532
---------- = ---------
4 days           x
                                                2128
Then 152x = 4(532), and  x = ---------- = 14.  It'll take Seth 14 days to earn                                                                             $532.
                                                  152</span>
3 0
3 years ago
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Find the 7th term of the geometric sequence with the given terms.
Anarel [89]
The common ratio is the fifth term divided by the fourth term: -40/-8 = 5.
The seventh term is :
a_{7}=a_{5}\times5\times5=-40\times5\times5=-1000
8 0
3 years ago
100 POINTS PLEASE HELP!!
andrew-mc [135]

Answer:

a)  ∠2 and ∠4 are a linear pair

∠4 = 115°

b)  ∠2 and ∠7 are alternate exterior angles

∠7 = 65°

c) ∠2 and ∠3 are vertical angles

∠3 = 65°

Step-by-step explanation:

Linear pair : a pair of adjacent angles formed when two lines intersect. The two angles of a linear pair are always supplementary (two angles whose measures add up to 180°)

Alternate exterior angles : when two parallel lines are cut by a transversal (a line that intersects two or more other, often parallel, lines), the resulting alternate exterior angles are <u>congruent</u>.

Vertical angles : a pair of opposite angles formed by intersecting lines. Vertical angles are always <u>congruent.</u>

a)  ∠2 and ∠4 are a linear pair

⇒ ∠2 +∠4 = 180

⇒ 65 + ∠4 = 180

⇒ ∠4 = 180 - 65

⇒ ∠4 = 115°

b)  ∠2 and ∠7 are alternate exterior angles

⇒ ∠2 ≅ ∠7

⇒ ∠7 = 65°

c) ∠2 and ∠3 are vertical angles

⇒ ∠2 ≅ ∠3

⇒ ∠3 = 65°

5 0
2 years ago
Read 2 more answers
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