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3 years ago

6

find the measure of the side of the right triangle whose length is designated by a lowercase letter. Round answers to the neares

t whole number.

1 answer:

mario62 [17]3 years ago

8 0

Ah yes, math, I believe the answer you are looking for, my young scholar, is A

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You are debating about whether to buy a new computer for $800.00 or a refurbished computer with the same equipment for $640.00.

Misha Larkins [42]

Answer:

$167.2

Step-by-step explanation:

It has been given that the price of a new computer is $800.00 and refurbished computer with the same equipment has a price of $640.00.

Let us find the amount that we will save with a refurbished computer if we put the difference into the savings account for a year using simple interest formula.

$A=P(1+rt)$ , where A= Amount after t years, P=principal amount, r = interest rate (decimal form) and t=time.

Our principal amount will be the difference of prices of new computer and refurbished computer.

$\text{Principal amount}=800-640=160$

$\text{Interest rate}=\frac{4.5}{100}=0.045$

Upon substituting our given values in above formula we will get,

$\text{Amount we will save with a refurbished computer}=160(1+0.045\times 1)$

$\text{Amount we will save with a refurbished computer}=160(1+0.045)$

$\text{Amount we will save with a refurbished computer}=160(1.045)$

$\text{Amount we will save with a refurbished computer}=167.2$

Therefore, we will save $167.2 with refurbished computer when we put the difference into the savings account for a year.

5 0

3 years ago

Firstright answer will get brainlist

avanturin [10]

P:(1/2)=50
p=50*(1/2)=25

5 0

3 years ago

Write the equation of the line that contains the given point and has the given slope. (–1, 1), slope = –2

vichka [17]

We can write the equation in point-form in this case. The equation should be:

y-y1 = m(x-x1)

y and x can be any point in the line, so we leave them just like that in the equation, we don’t have to add any numbers to them. m is the slope of the line, and (x1, y1) is the given point in the line, which is (-1, 1) in this case.

Now, just substitute the number in,

y - 1 = -2 [x - (-1)]
y - 1 = -2 (x+1)
y - 1 = -2x - 2
2x + y + 1 = 0

So, 2x + y + 1 = 0 is your answer.

4 0

3 years ago

If the ones digit of a number greater than 1 is 0,what factor or factors must that number have

nasty-shy [4]

If the units digit is zero, then you have an even number ...
' 2 ' must be one of its factors.

It must also have two or more places ... it's greater than 9.
If it had only one place, and its units digit were zero, then
the whole thing would be zero.

Since it has two or more places, 5 and 10 are also factors.

7 0

3 years ago

According to the U.S. Census Bureau, 42% of men who worked at home were college graduates. In a sample of 480 women who worked a

Likurg_2 [28]

Answer:

1) $0.327 - 0.539 \sqrt{\frac{0.327(1-0.327)}{480}}=0.315$

The point estimate for the proportion of college graduates among women who work at home is 0.327

2) $0.327 - 0.539 \sqrt{\frac{0.327(1-0.327)}{480}}=0.315$

$0.327 + 0.539 \sqrt{\frac{0.327(1-0.327)}{480}}=0.339$

The 80% confidence interval is given by (0.315; 0.339)

Step-by-step explanation:

For this case we have the following info given:

$X = 157$ represent the women who worked at home who were college graduates

$n = 480$ the sample size selected

Part 1

In order to find the proportion of college graduates among women who work at home and we can use the following formula:

$\hat p=\frac{X}{n} = \frac{157}{480}= 0.327$

The point estimate for the proportion of college graduates among women who work at home is 0.327

Part 2

Construct an 80% confidence interval for the proportion of women who work at home who are college graduates. Round the answer to three decimal places. An 80% confidence interval for the proportion of women who work at home Is < p <

The confidence interval for the true proportion would be given by this formula

$\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}$

For the 80% confidence interval the value for the significance is $\alpha=1-0.8=0.2$ and $\alpha/2=0.1$ , the critical value would be given by:

$z_{\alpha/2}=0.539$

And replacing we goot:

$0.327 - 0.539 \sqrt{\frac{0.327(1-0.327)}{480}}=0.315$

$0.327 + 0.539 \sqrt{\frac{0.327(1-0.327)}{480}}=0.339$

The 80% confidence interval is given by (0.315; 0.339)

6 0

3 years ago