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Oksi-84 [34.3K]
2 years ago
6

Two communications companies offer calling plans. With Company X, it costs 30¢ to connect and

Mathematics
1 answer:
sesenic [268]2 years ago
7 0

Answer:

D

Step-by-step explanation:

      you can model the amount that each phone plan will cost after n    minutes with these linear equations

                company X: 30 + 5n

                company Y: 20 + 4n

if you subtract the functions you can get the function for the

30 + 5n - ( 20 + 4n )

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The weight of a nickel is 5g. How many mg does a nickel weigh?
telo118 [61]
Grams measures mass not weight

1 g = 1000 mg
(5 g)(1000) = 5000 mg

A nickel's mass is equal to 5000 mg
3 0
3 years ago
Is the square root of 5+1/5 rational or irrational
Vikentia [17]
The square root of 5+1/5 (5.2, 5 1/5) is rational as it has an end you can clearly see. The square root of 5.2 is 2.28035085 exactly.
7 0
3 years ago
Two vertical posts stand side by side. One post is 8 feet tall and the other is 17 feet tall. If a 24 foot wire is stretched bet
lianna [129]

Answer:

The distance between the posts is 3\sqrt{55} feet.

Step-by-step explanation:

In the attached figure, let DB and AC be the posts and let AD be the wire attached to the top of the posts.

BC is the distance between the posts and we need to find BC.

Note that BC = DE

Also, EC = DB = 8m and AE = AC - EC = 17 - 8 = 9 m.

Now, in the right triangle ADE,

AD^{2} =AE^{2} +DE^{2}

24^{2} =9^{2} +DE^{2}

DE^{2} =24^{2} -9^{2}

= (24+9) (24-9)

= 33(15)

= (3 × 11) × (3 × 5)

DE=3\sqrt{55}

Since DE = BC,

BC=3\sqrt{55}

Hence, the distance between the posts is 3\sqrt{55} feet.



7 0
3 years ago
Geometry: Please help!!!(again lol)
Lesechka [4]

Answer:

16

35

27

29

Ecuaciones:

9)(x+10)+64=90

10) ( 2+x)+143=180

11)55=(2x+1)

12)  2x=58

3 0
3 years ago
Read 2 more answers
The square root of a number is between 7 and 8. which could be the number? a 72 c 51 b 83 d 66
worty [1.4K]
7 squared is 49, 8 squared is 64, so look for the number that is bewteen 49 and 64, which is 51 in this case

3 0
3 years ago
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