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3 years ago

9

PLZZZ HELP ME OUT THIS DUE RIGHT NOW AND I FREAKING OUT PLEASE HELP ME P.S YOU HAVE WRITE ANSWERS FOR ALL OF THEM

2 answers:

Nimfa-mama [501]3 years ago

8 0

<em>Answer:</em>

<em>a is greater than 1, so a−1 is positive.</em>

<em />

<em>The distance between a and 1 appears to be less than the distance between 1 and 0, so it looks like a is less than 2. Thus a−2 is negative.</em>

<em />

<em>b is negative, so −b is positive.</em>

<em />

<em>The distance between a and 0 appears to be less than the distance between b and 0, so it looks like |a| is less than |b|. Since b is negative and a is positive, a+b is negative.</em>

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<em>a−b = a+−b. Since b is negative, −b is positive. a is also positive. Thus, a−b is positive.</em>

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<em>Since |a| and |b| are both greater than 1, |ab| is also greater than 1 (this builds on the intuition students gained in fifth grade as in 5.NF.5). ab is negative since a is positive and b is negative. Thus, ab+1 is negative.</em>

Kryger [21]3 years ago

5 0

Answer:

a is greater than 1, so a−1 is positive.

Step-by-step explanation:

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Can someone help me please ?!?

N76 [4]

A^4 / a = a^3

b^-3 / b^-2 = b^(-3-(-2)) = b^-1 = 1/b

so the answer is a^3/b

3 0

3 years ago

For every $5 tent saved, his his dad will contribute $2 to his saving account. How much will Trent have to put into the account

KonstantinChe [14]

Answer:

$40

Step-by-step explanation:

Trent contributes 5/(5+2) = 5/7 of the amount in his account. For an amount of $56, he must contribute ...

(5/7)×$56 = $40

Trent will have to put $40 into the account before he can buy a $56 skateboard.

7 0

3 years ago

Find the surface area of th prism.

shutvik [7]

<span> 2(lh + lw + wh) = 96
lh + lw + wh = 48

l(h + w) + wh = 48
3(3 + 4) + 12

Length = 3
Width = 3
Height = 4
</span>

8 0

3 years ago

Read 2 more answers

Which expressions are equivalent to 1−2x−1.7 ?

siniylev [52]

Step-by-step explanation:

if there are no typos, then the second and the fourth answers are correct.

1 - 1.7 = -0.7 or -2×0.35

-2x = -2(x)

8 0

2 years ago

Suppose that the rate of return on stocks is normally dis-tributed with mean of 9% and a standard deviation of 3%. If I pick fiv

alisha [4.7K]

Answer:

The probability that at least two stocks will have a return of more than 12% is 0.1810.

Step-by-step explanation:

Let <em>X</em> = rate of return on stocks.

The random variable <em>X</em> follows a Normal distribution, N (9, 3²).

Compute the probability that a stock has rate of return more than 12% as follows:

$P(X\geq 12)=1-P(X$

**Use the <em>z</em> table for the probability.

The probability of a stock having rate of return more than 12% is 0.1587.

Now define a random variable <em>Y</em> as the number of stocks that has rate of return more than 12%.

The sample size of stocks selected is, <em>n</em> = 5.

The random variable <em>Y </em>follows a Binomial distribution.

The probability of a Binomial distribution is:

$P(X=x)={n\choose x}p^{x}(1-p)^{n-x};\ x=0, 1, 2, ...$

Compute the value of P (X ≥ 2) as follows:

P (X ≥ 2) = 1 - P (X < 2)

= 1 - P (X = 0) - P (X = 1)

$=1-{5\choose 0}(0.1587)^{0}(1-0.1587)^{5-0}-{5\choose 1}(0.1587)^{1}(1-0.1587)^{5-1}\\=1-0.4215-0.3975\\=0.1810$

Thus, the probability that at least two stocks will have a return of more than 12% is 0.1810.

6 0

3 years ago