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erik [133]
1 year ago
14

This diagram was constructed with straightedge and compass tools. A is the center of one circle, and C is the center of the othe

r. Select all true statements.
A. AB = BC
B. AB= BD
C. AD = 2 AC
D. BC = CD
E. BD = CD​
Mathematics
1 answer:
Mariulka [41]1 year ago
3 0

Answer: an=bc

Step-by-step explanation:

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59% of 640. We are supposed to find the percent of each number (as you can see)
Novosadov [1.4K]

Answer:

377.6

Step-by-step explanation:

Multiply 59 by 640 and then move the decimal point over two numbers.

59% of 640

59 x 640

37760.0

377.6


4 0
3 years ago
Solve for x. <br> 2/3(x - 7) = -2
son4ous [18]
2/3x -14/3 = -2  -foiled

2/3x = -6/3 +14/3 -common denominator

2/3x = 8/3

x = 8/3 * 3/2 

x = 24/6 

x= 4

4 0
3 years ago
Read 2 more answers
The masses to the nearest kilogram of nine men were:
serious [3.7K]

Answer:

82 kg

Step-by-step explanation:

To find the mean of a set of values, we must add them up and divide by the number of values.

Step 1, adding the values:

75+68+78+82+85+90+88+92+76=\\734

Step 2, dividing by the # of terms:

There are 9 terms in total.

\frac{734}{9} =\\81.556

To the nearest kilogram, we can round 81.556 into 82.

The mean mass of the 9 men was \fbox{82} kg.

<em>I hope this helps! Let me know if you have any questions :)</em>

5 0
3 years ago
Read 2 more answers
The vertex of this parabola is at (2, -4). When the y-value is -1, the x-value is 3. What is the coefficient of the squared term
rjkz [21]

Answer:

3

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (2, - 4) , thus

y = a(x - 2)² - 4

To find a substitute (3, - 1 ) into the equation

- 1 = a(3 - 2)² - 4 ( add 4 to both sides )

3 = a

Thus

y = 3(x - 2)2 - 4 ← equation in vertex form

   = 3(x² - 4x + 4) + 4

    = 3x² - 12x + 12 + 4

     = 3x² - 12x + 16 ← equation in standard form

with coefficient of x² term = 3

5 0
3 years ago
What is the value of x in this equation? 5x + 12 = -18
siniylev [52]

Answer:

x = −6

Step-by-step explanation:

I like to start off by simplifying the equation! Then, I use inverse operations to narrow it down until I reach the answer!

5x + 12= −18

5x + 12 <u>− 12</u>= −18 <u>− 12 </u>

5x = −30

5x<u>/5</u> = -30<u>/5</u>

<u>x = -6</u>

4 0
3 years ago
Read 2 more answers
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