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2 years ago

I don’t know if it’s A or B

Mathematics

2 answers:

lara31 [8.8K]2 years ago

7 0

Answer:

Step-by-step explanation:

this is true due to the ratio of a 30-60-90 triangle, which is 1-2-sqrt(3). The 12 corresponds to the sqrt(3), which means that the 1 corresponds to 4sqrt3 and the 2 to 8sqrt3.

zmey [24]2 years ago

5 0

The answer is going to be A

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A credit union client deposits $3,300 in an account earning 6.5% interest, compounded annually. What will the balance of the acc

astra-53 [7]

Answer:

The balance of account at the end of 36 years is $31,849.29

Step-by-step explanation:

We are given the following in the question:

P = $3,300

r = 6.5% = 0.065

t = 36 years

The compound interest is given by:

$A = p\bigg(1+\dfrac{r}{n}\bigg)^{nt}$

where A is the amount, p is the principal, r is the interest rate, t is the time in years and n is the nature of compound interest.

Since interest is compounded annualy we use n = 1

$A = 3300\bigg(1+\dfrac{0.065}{1}\bigg)^{36}\\\\A = \$31,849.29$

Thus, balance of account at the end of 36 years is $31,849.29

6 0

3 years ago

The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics

IrinaK [193]

Answer: 0.84

Step-by-step explanation:

let p be the population proportion of adults who smoked a cigarette in the past week.

As per given , we have

$H_a: p$

Sample size : n= 1491

The sample proportion of adults smoked a cigarette= $\hat{p}=\dfrac{x}{n}=\dfrac{462}{1491}=0.30985915493\approx0.31$

The test statistic for proportion is given by :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Substitute all the values , we get

$z=\dfrac{0.31-0.30}{\sqrt{\dfrac{0.30(1-0.30)}{1491}}}\\\\=\dfrac{0.01}{\sqrt{0.000141}}\\\\=\dfrac{0.01}{0.011874342087}=0.84261497731\approx0.84$

Hence, the value of the test statistic = 0.84

6 0

3 years ago

Do you know what1

Nikitich [7]

Answer:

Step-by-step explanation:

because it is the only one do t know so yeah lol

8 0

2 years ago

Your furniture store sells two types of dining room tables. The first, type A, costs $210 and you make a $21 profit on each one.

zimovet [89]

<u>Answer</u>

In order to minimize total cost sell A type 40 numbers and B type 90 numbers

<u>Solution</u>

furniture store sells two types of dining room tables.

The first, type A, costs $210 and you make a $21 profit on each one.

The second, type B, costs $180 and you make a $20 profit on each one.

We can order no more than 130 tables this month, and you need to make at least $2640 profit on them.

Let x be the number table Type A sold, type B sold = 130-x

To find the value of x

21x +(130-x)20=2640

solving we get x=40

There are two possibilities

A type sold =40 B type sold = 130 - 40 =90

total cost = 40 x 210 + 90 x 180 = 24600

A type sold =90 B type sold = 130 - 90 =40

total cost = (90 x 210) + (40x180)=26100

In order to minimize total cost, choose first possibility

sell A type 40 numbers and B type 90 numbers

7 0

3 years ago

So hard! please help!

Sergeeva-Olga [200]

Answer:

please take a closer picture. :)

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers