7. Sharona's age is at most 3 more than twice Kayla's age. If Sharona is 35 years old, which

Mathematics

1 answer:

oee [108]3 years ago

6 0

Answer:

a or b

since 35-3= 32/2 16

Kayla is 16 years old

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5 1/2 by 4 3/4 by 1/4 scale it down by 1/10

TiliK225 [7]

Answer:

(11/20 by 19/40 by 1/40) OR (0.55 by 0.475 by 0.025)

Step-by-step explanation:

To scale down a set of measurements, simply multiply the original measurement by the factors you're scaling it by. For example, take the first measurement of 5 1/2. To scale this down, I turned the value into an improper fraction (11/2) to make the multiplication process easier. Then, I multiplied 11/2 by the factor of 1/10.

After that, I got 11/20, which is the new first measurement.

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3 years ago

What is 35% of $100?

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The vertices of a triangle are A(0, 0), B(3, 8), and C(9, 0). What is the area of this triangle?

Harlamova29_29 [7]

Answer: 36 units squared.

Explanation:
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| 0.5{x1(y2-y3) + x2(y3-y1) + x3(y1-y2)} |

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x1 =0, y1=0

x2=3, y2=8

x3 =9, y3=0

= | 0.5 × (-72)|
= 36 unit squared.

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32% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and a

Tems11 [23]

Answer:

a) $P(X=2)=(10C2)(0.32)^2 (1-0.32)^{10-2}=0.211$

b) $P(X> 2)=1-P(X\leq 2)=1-[0.0211+0.0995+0.211]=0.668$

c) $P(2 \leq x \leq 5)=0.211+0.264+0.218+0.123=0.816$

Step-by-step explanation:

1) Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

2) Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=10, p=0.32)$