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Alexeev081 [22]

2 years ago

5

A landscape designer has a drawing of a flower bed that measures 6 inches by 9 inches. The owner wants the actual flower bed to

be 5 feet by 7.5 feet. What is the scale factor the designer must use to install the new flower bed?

2 answers:

Solnce55 [7]2 years ago

5 0

The answer is 10
Shshsjsbsbdb

Mrac [35]2 years ago

4 0

The scale factor is 1:10

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4. Bradford hopped into his Ford Mustang GT to rush to Diana and tell her

OLEGan [10]

Answer:

See explanation and image attached

Step-by-step explanation:

Acceleration refers to the rate of change of speed with time. We can see that between 0 and 4.7 seconds he accelerated quickly . That means that the rate of change of speed with time was greatest between 0 and 4.7 seconds.

A graph of the motion is shown in the image attached. We can see that he maintained a constant speed after 4.7 seconds.

5 0

2 years ago

Multiply and simplify. A) 36 1/12 B) 36 1/6 C) 41 1/12 or D) 41 1/6

Scorpion4ik [409]

1 Convert 12\frac{2}{3}12
3

2
to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a
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\frac{12\times 3+2}{3}\times 3\frac{1}{4}
3

12×3+2
×3
4

1

2 Simplify 12\times 312×3 to 3636
\frac{36+2}{3}\times 3\frac{1}{4}
3

36+2
×3
4

1

3 Simplify 36+236+2 to 3838
\frac{38}{3}\times 3\frac{1}{4}
3

38
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1

4 Convert 3\frac{1}{4}3
4

1
to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a
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\frac{38}{3}\times \frac{3\times 4+1}{4}
3

38
×
4

3×4+1

5 Simplify 3\times 43×4 to 1212
\frac{38}{3}\times \frac{12+1}{4}
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38
×
4

12+1

6 Simplify 12+112+1 to 1313
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38
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13

7 Use this rule: \frac{a}{b}\times \frac{c}{d}=\frac{ac}{bd}
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a
×
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c
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\frac{38\times 13}{3\times 4}
3×4

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8 Simplify 38\times 1338×13 to 494494
\frac{494}{3\times 4}
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494

9 Simplify 3\times 43×4 to 1212
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10 Simplify
\frac{247}{6}
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247

11 Convert to mixed fraction
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41 and 1/6

4 0

3 years ago

Which is the slope of the line that passes through the points (3,17) and (7,25)? a slope = 1/2 b slope = 2 c slope = −2 d slope

Ierofanga [76]

Slope is y2-y1/x2-x1
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The answer should be b

5 0

2 years ago

One more than the difference between 18 and seven times a number is -9

Reptile [31]

(18-7x)+1= -9 Hope this helps ^^

8 0

2 years ago

The variance can never bea.zerob.larger than the standard deviationc.negatived.smaller than the standard deviation

MrRa [10]

Answer:

c.negative

True, by definition since the variance take in count the differences around the mean squared, then we can't have a negative value for a sum of square values.

Step-by-step explanation:

We need to remember that the variance is a measure of dispersion for a dataset respect to a measure of central tendency called the mean. The mean is defined as:

$\bar x = \frac{\sum_{i=1}^n X_i}{n}$

And the population mean is given by:

$\mu= \frac{\sum_{i=1}^n X_i}{N}$

The population variance is defined by:

$\sigma^2 = \frac{\sum_{i=1}^n (X_i -\mu)^2}{N}$

And the sample variance is defined as:

$s^2= \frac{\sum_{i=1}^n (X_i -\bar x)}{n-1}$

Now if we analyze the options we have this:

a.zero

False, if all the values are the same then the mean would be the same to the values and the difference between each value and the mean would 0 and indeed the variance would be 0.

b.larger than the standard deviation

False, if the population standard deviation is $\sigma=2$ then the variance would be $\sigma^2 = 4$ and as we can see is higher than the standard deviation

c.negative

True, by definition since the variance take in count the differences around the mean squared, then we can't have a negative value for a sum of square values.

d.smaller than the standard deviation

False, if the population standard deviation is $\sigma=0.1$ then the variance would be $\sigma^2 = 0.01$ and as we can see is lower than the standard deviation

7 0

3 years ago