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2 years ago

(1.5×10^3)+(2.5×10^2) in standard form

Mathematics

1 answer:

Tcecarenko [31]2 years ago

7 0

Answer: 2.65·10^-2

Step-by-step explanation. : 1.5·10^-3= 0.0015 and 2.5·10^-2= 0.025.

Sum is 0.0265

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Jordan has 5/6 dvds as bob, so if jordan has 55 dvds how much does bob have?

Luba_88 [7]

Answer:

Bob has 66 dvds

Step-by-step explanation:

Let's assume

Bob has 'x' number of dvds

we are given

Jordan has 5/6 dvds as bob

so, Jordon will have

$=\frac{5}{6}x$

now, we are given jordan has 55 dvds

so, we can set it to 55

and then we can solve for x

$\frac{5}{6}x=55$

Multiply both sides by 6

$6\times \frac{5}{6}x=6\times 55$

$5x=6\times 55$

divide both sides by 5

$\frac{5x}{5} =\frac{6\times 55}{5}$

$x=66$

So,

Bob has 66 dvds

3 0

2 years ago

Simplify: 4 x 32 - 3+5x2 = A. 33 B. 43 C. 36 D. 58 E. 34

NeX [460]

I got 155‍♀️ I don’t know cause I did PEMDAS and got 155

3 0

2 years ago

Read 2 more answers

In the toy shop of the theme park is a shelf full of gifts. Two of the gift packets are yellow. One of the yellow packets is the

Angelina_Jolie [31]

Answer:

There is 9 gifts packets on the shelf.

Step-by-step explanation:

"o" represents a not yellow gift packet and "i" represents a yellow packet.

It says "One of the yellow packets is the sixth from the left" so we have

???iooooo

then it says "the other packet is the eighth from the right" AND "Between the two yellow gift packets there are three differently colored packages"

So we have

oooioooio because there is no "17" answer so it can't be

oooooooioooiooooo

8 0

2 years ago

Read 2 more answers

Ashley deposited $4,000 into a savings account that earns 4% simple interest. What is the total amount Ashley will have in her a

ololo11 [35]

answer is 480!!

EXPLANATION: I=PRT

4,000x .04=160.
160x3=480

6 0

2 years ago

Choose the correct problem formulation: Hotels, like airlines, often overbook, counting on the fact that some people with reserv

Marina CMI [18]

Answer:

$P(8 < x \leq 12)=P(X=9)+P(X=10)+P(X=11)+P(X=12)$

$P(X=9)=(15C9)(0.8)^{9} (1-0.8)^{15-9}=0.0429$

$P(X=10)=(15C10)(0.8)^{10} (1-0.8)^{15-10}=0.1032$

$P(X=11)=(15C11)(0.8)^{11} (1-0.8)^{15-11}=0.1878$

$P(X=12)=(15C12)(0.8)^{12} (1-0.8)^{15-12}=0.2501$

$P(8 < x \leq 12)=0.0429+0.1032+0.1878 +0.2501=0.5839$

Step-by-step explanation:

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".

Solution to the problem

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

$X \sim Binom(n=15, p=1-0.2=0.8)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(8 < x \leq 12)=P(X=9)+P(X=10)+P(X=11)+P(X=12)$

$P(X=9)=(15C9)(0.8)^{9} (1-0.8)^{15-9}=0.0429$

$P(X=10)=(15C10)(0.8)^{10} (1-0.8)^{15-10}=0.1032$

$P(X=11)=(15C11)(0.8)^{11} (1-0.8)^{15-11}=0.1878$

$P(X=12)=(15C12)(0.8)^{12} (1-0.8)^{15-12}=0.2501$

$P(8 < x \leq 12)=0.0429+0.1032+0.1878 +0.2501=0.5839$

7 0

3 years ago

(1.5×10^3)+(2.5×10^2) in standard form​

(1.5×10^3)+(2.5×10^2) in standard form