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TEA [102]
3 years ago
8

It cost Evan $17.70 to send 177 text messages. How many text messages did he send if he spent $19.10?​

Mathematics
1 answer:
rusak2 [61]3 years ago
6 0

Answer:

191

Step-by-step explanation:

The amount spent for a single text:  177/17,7=0,1

x×0,1=19,1

x=19,1/0,1

x=191

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What is the remainder when (3x4 + 2x3 – x2 + 2x – 14) ÷ (x + 2) ?
Tpy6a [65]

Answer:

Remainder: 10

Step-by-step explanation:

Given: (3x^4+2x^3-x^2+2x-14)\div (x+2)

We need to find the remainder of the division polynomial.

Using synthetic division:

-2  |  3        2       -1        2       -14     |

                -6        8      -14       24

       3       -4        7      -12        10

Please see the attachment for steps.

At last we get a number 10.

Therefore, 10 is remainder of division.

8 0
3 years ago
Read 2 more answers
Two friends want to share 3 apples so that they each get the same amount how much should each friend get
tatiyna
All you have to do is divide 3 by 2 which is 1.5 so each friend will receive 1 and a half apples
3 0
4 years ago
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Really need help! Brainliest to correct!!
Bad White [126]

Answer:

A) [-4, 2]

B) [4, 6]

C) [2, 4]

3 0
3 years ago
How to now which one is bigger 16.45 or 16.454
artcher [175]
16.454 because there is an extra 4 after the 5
7 0
3 years ago
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Suppose N has a geometric distribution with parameter p. Derive a closed-form expression for E(N | N <= k), k = 1,2,... Check
vfiekz [6]

Answer:

P(X= k) = (1-p)^k-1.p

Step-by-step explanation:

Given that the number of trials is

N < = k, the geometric distribution gives the probability that there are k-1 trials that result in failure(F) before the success(S) at the kth trials.

Given p = success,

1 - p = failure

Hence the distribution is described as: Pr ( FFFF.....FS)

Pr(X= k) = (1-p)(1-p)(1-p)....(1-p)p

Pr((X=k) = (1 - p)^ (k-1) .p

Since N<=k

Pr (X =k) = p(1-p)^k-1, k= 1,2,...k

0, elsewhere

If the probability is defined for Y, the number of failure before a success

Pr (Y= k) = p(1-p)^y......k= 0,1,2,3

0, elsewhere.

Given p= 0.2, k= 3,

P(X= 3) =( 0.2) × (1 - 0.2)²

P(X=3) = 0.128

3 0
3 years ago
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