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3 years ago

8

A scale drawing has a scale of 1/4in. :12ft. Find the length on the drawing for each actual length. 8ft

1 answer:

UNO [17]3 years ago

8 0

The other part of your ratio is missing

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Write an equation of a parabola that passes through the point (2,4) with vertex (-1,-1) in vertex form.

quester [9]

An applicable equation of a vertical parabola in vertex form is:

y-k = a(x-h)^2

Let x=2, y=4, h=-1 and k=-1, where (h,k) is the vertex. Then,

4-(-1) = a(2-[-1])^2, which becomes 5 = a(9). Therefore, a = 5/9, and the
equation of the parabola is

y+1 = (5/9)(x+1)

8 0

3 years ago

How much interest would be paid on $75 at 5% interest rate for 2 years??

V125BC [204]

Answer:

Step-by-step explanation:

Step one: because fractions are out of 100% you do

5%+100%= 105

105 divide by 100 which is equal to 1.05

Step two: it’s says two year so what you do is times the amount by the number you got

75x $1.05{2}$

=82.68 answer

4 0

3 years ago

The proportion of items in a population that possess a specific attribute is known to be 0.45. a. If a simple random sample of s

yanalaym [24]

Answer: 0.05

Step-by-step explanation:

Sampling error is the error occurs by considering sample for study instead of entire population.

Given : The proportion of items in a population that possess a specific attribute is known to be 0.45.

Sample size : n= 100

Sample proportion of items in a population that possess a specific attribute : $\hat{p}=0.48$

Now, the formula to find the sampling error :

$\text{Sampling error} =\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$\text{Sampling error} =\sqrt{\dfrac{0.48(1-0.48)}{100}}$

$=\sqrt{\dfrac{0.48(0.52)}{100}}\\\\=\sqrt{0.002496}\approx0.05$

Hence, the sampling error =0.05

4 0

3 years ago

Help with 2 and 5 plzzzzz

Katyanochek1 [597]

Multiply all the numbers on 2

4 0

3 years ago

What type of function does this equation represent?<br> 2<br> Y = 4<br> (1)

Sphinxa [80]

Answer:

2y=4 is a linear function

Step-by-step explanation:

Since 2y=4 is the same as 2y¹=4, then a degree of 1 makes the function linear, aka. a straight line.

4 0

3 years ago