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tankabanditka [31]
3 years ago
9

Identify the missing side length using a scale factor of 1.5.

Mathematics
2 answers:
Zanzabum3 years ago
7 0

Answer:

7.5

Step-by-step explanation:

The width on the left rectangle is 3

Multiply it by the scale factor (1.5) and we  get the width of the rectangle on the right

3 * 1.5 = 4.5

Then take the length of the rectangle on the left and multiply it by the scale factor

5 (1.5) = 7.5

The length of the rectangle is 7.5

strojnjashka [21]3 years ago
6 0

Answer:

7.5

Step-by-step explanation:

You really don't have to. Set up a Proportion.

3/4.5 = 5/x            Cross multiply

3*x = 4.5 * 5          Combine the right

3x = 22.5              Divide by 3

3x/3 = 22.5/3       Do the division

x = 7.5

=======================

However, you could use a scale factor of 1.5

The parent shape has a length of 5

This is multiplied by 1.5

New length = Old length * Scale factor.

New length = ????

Old length = 5

Scale factor = 1.5

New length =  1.5 * 5 = 7.5

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Answer:

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Step-by-step explanation:

Divide 15 by 9 to find the price of one cookie:

15/9 = 1.67

=  approximately $1.67

7 0
3 years ago
The US Department of Energy reported that 48% of homes were heated by natural gas. A random sample of 333 homes in Oregon found
Lera25 [3.4K]

Answer:
Option B) Do not reject null hypothesis, there is not enough evidence to support the claim that the proportion of homes in Oregon heated by natural gas is different from the 48% that the US Department of Energy reported.
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 333
p = 48% = 0.48
Alpha, α = 0.01
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First, we design the null and the alternate hypothesis  

This is a two-tailed test.  
Formula:


Putting the values, we get,

Now, we calculate the p-value from the table.
P-value = 0.273079
Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.
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B. Do not reject null hypothesis, there is not enough evidence to support the claim that the proportion of homes in Oregon heated by natural gas is different from the 48% that the US Department of Energy reported.
8 0
3 years ago
What is the equation of the line that passes through (0, 3) and (7, 0)?
r-ruslan [8.4K]
The answer should be (C):y=(-3/7)x+3 because:

 if you use the slope formula: (Y2-Y1)/(X2-X1) it would look like this:

(0-3)/(7-0) and the slope of the line would be -3/7

then using the slope you just found, plug it into the y=mx+b equation along with one set of coordinates to find b (the y-intercept):

y=mx+b
0=(-3/7)(7)+b
b=3

SO, overall if you put the slope (m) and the y-intercept (b) that you found together, you get the line formula of y=(-3/7)+3 

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lukranit [14]

Answer:

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-2(x + 3)

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-2 · 3 = -6

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5 0
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