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makkiz [27]
3 years ago
7

Help??? I don't know the answer ❗️

Mathematics
1 answer:
cricket20 [7]3 years ago
3 0
The answer is definitely 24 inches
 
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Please help thank you!​
Setler79 [48]

Answer:

(d) WEAK NEGATIVE ASSOCIATION.

Step-by-step explanation:

Pearson correlation (r) is defined as a factor which measures the linear dependence between two variables (x and y). It's also known as a parametric correlation.

Here, r = -0.19

Now, as r is NEGATIVE.

⇒ As the value of x increases , value of y decreases.

⇒There is a  NEGATIVE ASSOCIATION.

Now as the value of r is between 0 and ( -1). So the factor of variation is very small.

Hence, it is WEAK NEGATIVE ASSOCIATION.

7 0
4 years ago
Suppose a new regulation that a maximum angle of a ramp for a wheelchairs is 8°. At least how long must the new ramp be? Round t
Llana [10]

Answer:

The length of the ramp is at least 17.2 feet

Step-by-step explanation:

See attachment for the appropriate diagram.

The length of the ramp is represented with z

So, we have:

\theta = 8

BC = 2.4

Required

Find z

To find z, we make use of sine formula:

sin\theta = \frac{BC}{z}

Make z the subject

z= \frac{BC}{sin\theta }

So:

z= \frac{2.4}{sin(8)}

z= \frac{2.4}{0.1392}

z= 17.2ft

<em>The length is at least 17.2 feet</em>

3 0
3 years ago
Half a number plus 2.5 times that number equals 18. What is the number?
Sholpan [36]

Answer:

It's 6.

Step-by-step explanation:

this was so confusing

4 0
3 years ago
What is 23% of 256? please help
Anastasy [175]
So first you need to turn the percent into a decimal. So 23% would be 0.23 because you divide 23 by 100 to turn it into a decimal. Now you multiply 0.32 and 256. So:

0.23 *256=58.88 

So your answer would be 23% of 256 is 58.88. I hope this helps! =)
7 0
4 years ago
Simplify the product. 5a^2(3a^4 + 3b)
Irina-Kira [14]

Answer:

15a^6 + 15a²b

3 0
3 years ago
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