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3 years ago

It takes 2/3 seconds to clap your hands how many times can you clap in 60 seconds?

Mathematics

2 answers:

lesya692 [45]3 years ago

7 0

I thought it would be 40 b/c 60 times 2/3

boyakko [2]3 years ago

3 0

Do 60 divided by 2/3 (66.6666666...)

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(HELP PLEASEE) The area of a rectangular swimming pool is 2x^2+13x-7. Find the dimensions of the swimming pool.

bearhunter [10]

Answer:

length =

$2x - 1$

width =

$x + 7$

Step-by-step explanation:

here we go,

=》

$2x {}^{2} + 13x - 7$

=》

$2 {x}^{2} + 14x - x - 7$

=》

$2x(x + 7) - 1(x + 7)$

=》

$(2x - 1)(x + 7)$

here, we got

the dimensions as :-

$(2x - 1) \: \: and \: \: (x + 7)$

7 0

2 years ago

Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 100 disks are sum

IrinaK [193]

Answer:

0.84

Step-by-step explanation:

Given that Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 100 disks are summarized as follows:

P(A) = 0.86, P(B) = 0.79, P(A') = 0.14, P(AUB) = 0.95

We are to find out P(A'UB)

We have

$P(AUB) =P(A)+P(B)-P(A\bigcap B)\\0.95=0.86+0.79-P(A\bigcap B)\\P(A\bigcap B)=0.70$

$P(A'UB) = P(A')+P(B)-P(A' \bigcap B)\\= 1-P(A) +P(B)-[P(B)-P(A \bigcap B)]\\= 1-0.86+0.79-P(B)+[tex]P(A'UB)=0.14+0.79-0.79+0.70\\=0.84$ P(A \bigcap B)[/tex]

7 0

3 years ago

What is the sales tax of a $178.90 video game system is the tax rate is 3.75%

juin [17]

It would be: 178.90 * 3.75%
= 178.90 * 0.0375
= 6.71

In short, Sales tax would be $6.71

Hope this helps!

3 0

3 years ago

Help please :) I will show the next questions in the other one so please answer them.

Yuki888 [10]

Answer:

Can you please take a better picture

Step-by-step explanation:

6 0

3 years ago

Plzzz HELP will give brainliest 9^-53*9^37

slamgirl [31]

Answer: The exact form is 5.3965953e-16. But in exponential form: 9^(-16).

Step-by-step explanation:

Use your calculator to plug in the negative powers and to multiply. Do it one step at a time. If you want exponential form, then here:

9^(-53) * 9^(37)

Add exponents keep base

9^(-16)

Hope this helps

3 0

2 years ago