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luda_lava [24]
3 years ago
15

Find the measure of arc EC.

Mathematics
1 answer:
miss Akunina [59]3 years ago
8 0

Answer:

50

Step-by-step explanation:

7x = (90 + 5x) \times  \frac{1}{2}

7x =   {2.5x} + 45

4.5x = 45

x = 10

Plug 10 in for x.

5(10) = 50

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Write the equation of a line that is perpendicular to y=3/2x+2 that goes through (6,-3)
scoray [572]

Answer:

y + 3 = -\frac{2}{3}(x-6)

Step-by-step explanation:

Perpendicular lines are lines which intersect at 90 degrees which have negative reciprocal slopes. The slope of the line y = 3/2x + 2 is 3/2. The slope of the line perpendicular to it will be -2/3. Substitute m = -2/3 and (6,-3) into the point slope form of a line.

y - y_1 = m(x-x_1)\\y - -3 = -\frac{2}{3}(x-6)\\y + 3 = -\frac{2}{3}(x-6)

4 0
4 years ago
The cost of 24 bottles of water is $6. Which expression shows how to find the cost of 10
IRINA_888 [86]

Answer:

10 water bottles = $2.50

Step-by-step explanation:

Basically just algebra, just find out the cost for one water bottle, then find out the cost for ten. If 24 water bottles is 6 dollars, then they got four bottles of water for one dollar, meaning a bottle of water is 25 cents, or $0.25. Ten water bottles would be two dollars and fifty cents.

7 0
4 years ago
MATH QUESTION (FACTORING)!!!! For the question 4x^2 - 4x - 3 I understand that you multiply 4 by -3 you need to find 2 numbers t
user100 [1]

Answer:

(3x+2)(2x+3)

Step-by-step explanation:

6x2+13x+6

6x2+13x+6

=(3x+2)(2x+3)

5 0
3 years ago
PLEASE HELP!!!!!!!! ITIS DUE IN 15 MINUTES.
Yuki888 [10]
Look at the picture.

8 0
3 years ago
For each point, identify the axis or quadrant where the point is located.
ser-zykov [4K]
In the point (x, y), if x=0, then the point is on the y axis.
If y=0, the point is on the x axis
If both x and y are positive (greater than 0), the point is in quadrant 1
If x is negative (less than 0) and y is positive (greater than 0), the point is in quadrant 2
If both x and y are negative, the point is in quadrant 3
If x is positive and y is negative, the point is in quadrant 4

Taking (-3, 2), since 3 has a - sign before it (and nothing else), it is negative. Since the x value comes first, this means that x is negative. Since it simply states "2" for the y value, it is positive. As x is negative and y is positive, we know that the point is in quadrant 2.

I challenge you to do this on your own - good luck, and feel free to ask with further questions!
8 0
3 years ago
Read 2 more answers
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