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3 years ago

What is the value of x?

Mathematics

1 answer:

kipiarov [429]3 years ago

7 0

First of all, let’s find CB.
sin(45°) = CB : 6sqrt(2)
CB = 6
Now we can find CD
cos(60°) = x : 6
x = 3

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Help! What is the answer to this question?

Nadya [2.5K]

Answer:

Step-by-step explanation:

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3 years ago

Felix's parents opened a savings

Crazy boy [7]

The money in the Felix's account will be $6798 when he is 21.

Step-by-step explanation:

It is given that,

The amount deposited is $2000.
The account earns 6% compound interest.
It is compounded annually for 21 years.

To find the money in Felix's account after 21 years :

The formula used here is,

⇒ $A = P(1+r/n)^{nt}$

where A is the amount after 21 years.

P is the initial amount deposited ⇒ P = 2000
r is the rate ⇒ r = 0.06
n is the number of times interest is compounded per year⇒ n = 1
t is the time period ⇒ t = 21

⇒ $2000(1+0.06/1)^{21\times 1}$

⇒ $2000(1.06)^{21}$

⇒ $2000\times3.399$

⇒ $6798$

Therefore, The money in the Felix's account will be $6798 when he is 21.

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4 years ago

The data in the chart shows the maximum and corresponding resting heart rate of a healthy 20 year old man. Fit a regression line

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Answer:

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4 years ago

A newspaper provided a "snapshot" illustrating poll results from 1910 professionals who interview job applicants. The illustrat

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Answer:

The correct option is A) Confidence level

Step-by-step explanation:

Consider the provided information.

From the provided information we get the sample size is 1910 professionals

The illustration showed that 26% of them said the biggest interview turnoff is that the applicant did not make an effort to learn about the job or the company. That's mean the point estimate is 26%

The margin of error was given as plus or minus 3±3 percentage points. The margin of error is the confidence interval which is plus or minus 3±3.

Now consider the provided option:

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3 years ago

A coin is tossed 600times with the frequencies as:

brilliants [131]

Answer:

see below

Step-by-step explanation:

Total number of trials =600.

Number of heads = 342.

Number of tails = 258

On tossing a coin,

$let \: E_1 \: and \: E_2 \: be \: the \: events \: of \: getting \: a \: head$

and of getting a tail respectively.

then,

$1) \: P \: (getting \: a \: head) = \: P \: (E_1)$

$\longrightarrow \: \frac{number \: of \: heads \: coming \: up}{total \: number \: of \: trials}$

$\longrightarrow \: \frac{342}{600} = \frac{57}{100}$

$\longrightarrow \: 0.57$

$\red{ \rule{150pt}{3pt}} \:$

$2) P (getting \: a\: tail) =P (E_2)$

$\longrightarrow \: \frac{number \: of \: tails \: coming \: up}{total \: number \: of \: trials}$

$\longrightarrow \: \frac{258}{600} = \frac{43}{100}$

$\longrightarrow \: 0.43$

6 0

3 years ago