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SashulF [63]
3 years ago
15

Carmen predicted in a read a thon mr.cole pledged $4.00per book and gave carmen 44$. how many books did carmen read

Mathematics
1 answer:
stiks02 [169]3 years ago
8 0

11

11 times 4 equals 44

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Simplify 8 3{x - 2[x 5(x 3)]}.
lora16 [44]

This is super simple so here you go the answe is

-33x-82

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3 years ago
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While playing games on a particular smart phone, 1% of the battery is drained every five minutes of game play. The battery start
Nostrana [21]

Answer:

B(75) represents the percent of battery full after 75 minutes of game play

Step-by-step explanation:

Let m represent the number of minutes of game play. If  1% of the battery is drained every five minutes of game play, then after m minutes of game play \dfrac{m}{5}\% was drained.

The battery starts off at 80% full. After m minutes the battery will have

B(m)=80-\dfrac{m}{5}

percent full.

When m=75 minutes, then

B(75)=80-\dfrac{75}{5}=80-15=65\%.

8 0
3 years ago
Give an example of each of the following or explain why no such example exists. (a) Two polynomials of degree 1 in Z4x whose pro
andre [41]

Answer:

Step-by-step explanation:

(a)

let, f(x) = 2x+1 & g(x) = 2x+2

So, f(x).g(x) = (2x+1).(2x+2) = 4x² + 6x + 2 = 2x+2 in Z_4[x]

So, product of two 1 degree polynomials is a 1-degree polynomial in Z_4[x]

(b)

let, f(x) = 2x³ - 3x² + 5x + 7 & g(x) = -2x³ + 3x² + x + 3 be two polynomials in R[x]

So, f(x) + g(x) = 6x + 10, which is a polynomial of degree 1 in R[x]

(c)

this is not possible, since, if f & g are 2 polynomials in any polynomial ring S, then, we always have,

deg(f.g) <= deg(f) + deg(g)

So, deg(f.g) = 5 (as desired) but, deg(f) + deg(g) = 2+2 = 4 but, 4 < 5

So, this is not possible.

So, no such example exists.

3 0
3 years ago
Consider the following game: Roll a fair 6-sided die. You win if the result is greater than 4; otherwise, you lose. To play, you
dalvyx [7]

Answer:

-$1.33 or lose $1.33

Step-by-step explanation:

In this game, there are two possible outcomes.

- There is a 2 in 6 chance (rolling a 5 or a 6) that you win $8.

- There is a 4 in 6 chance (rolling a 1, 2, 3 or a 4) that you win nothing.

Note that for any outcome, you start off paying $4 to play.

The expected value of this game is:

E(X) =\frac{2}{6} *\$8+\frac{4}{6}*\$0-\$4\\E(X) = -\$1.33

You are expected to lose $1.33 per play.

4 0
3 years ago
Jeffrey increased the number of push-ups he could do in one minute from 25 to 27. What was his percent of change?​
4vir4ik [10]

Answer:

2

Step-by-step explanation:

oh ii

5 0
3 years ago
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