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VARVARA [1.3K]
2 years ago
14

The circumference of a circle is 8 cm.

Mathematics
1 answer:
rjkz [21]2 years ago
5 0

Answer:

The third one

Step-by-step explanation:

You find the square root of circumference to find diameter.

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What is the rate of change for a linear function that passes through the points (8, -10) and (-6, 14)
Anna71 [15]

Answer: m=-1.714

Step-by-step explanation:

By definition, the slope of the line is described as "Rate of change".

You need to use the following formula to calcualte the slope of the line;

m=\frac{y_2-y_1}{x_2-x_1}

In this case you know that the line passes through these two points: (8, -10) and (-6, 14).

Then, you can say that:

y_2=-10\\y_1=14\\\\x_2=8\\x_1=-6

Knowing these values, you can substitute them into the formula for calculate the slope of a line:

 m=\frac{-10-14}{8-(-6)}

Finally, you must evaluate in order to find the slope of this line. You get that this is:

m=\frac{-24}{8+6}\\\\m=\frac{-24}{14}\\\\m=-\frac{12}{7}\\\\m=-1.714

8 0
4 years ago
In triangle △ABC, ∠ABC=90°, BH is an altitude. Find the missing lengths. AH=4 and HC=1, find BH.
Rudik [331]

Answer:

Length of BH is 2 units.

Step-by-step explanation:

We have, ΔABC with ∠ABC = 90° and an altitude BH.

Also, it is given that the length of sides AH is 4 units and HC is 1 units.

Since, the 'Altitude Rule' states that 'the length of the altitude is the geometric mean of the line segments it bisects'.

So, we get that,

BH^{2}=AH\times HC

i.e. BH^{2}=4\times 1

i.e. BH^{2}=4

i.e. BH=\pm 2

Since, the length of the side cannot be negative.

So, length of BH is 2 units.

3 0
4 years ago
Given the equation find f(4) <br> f(m)=5-2m<br> 3<br> 5 <br> 1 <br> -3<br> -1 <br> -5
Bingel [31]
Your answer is -3.
5-2(4)
5-8
-3
3 0
4 years ago
Does this graph represent a function? Why or why not?
Morgarella [4.7K]

Answer:

Option D is the correct answer

Step-by-step explanation:

D. Yes, because it passes the vertical line test.

7 0
3 years ago
125,000 to 117,500 what is the percent decrease in value
ludmilkaskok [199]

Answer:

6%

Step-by-step explanation:

Decrease in value = 125 000 - 117 500

= 7500

Percentage decrease = (7500 ÷ 125 000) × 100

= 6%

3 0
3 years ago
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