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Papessa [141]
2 years ago
11

1. In the diagram below, segment AB is tangent to circle C at point D and AC LBC. If m

Mathematics
1 answer:
katrin2010 [14]2 years ago
7 0

Answer:

∠ DCB = 28°

Step-by-step explanation:

∠ ACD = 180° - (90 + 28)° = 180° - 118° = 62° , then

∠ DCB = 90° - 62° = 28°

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If the lengths of two sides of a triangle are 3 and 12, which could be the length of the third side?
Ierofanga [76]

Answer: 1st is if it’s 2 legs second is if it’s a leg and hypotenuse

Step-by-step explanation:

6 0
2 years ago
What is the y intercept of a line that has a slope of -3 and passes through the point (2,7)
Tom [10]
Y = mx + b
slope(m) = -3
(2,7)...x = 7 and y = 2
now we sub and fund b, the y int
2 = -3(7) + b
2 = -21 + b
2 + 21 = b
23 = b <== ur y int
5 0
3 years ago
Simplify this expression leaving your answer in index form​
kenny6666 [7]

Answer:

solution is 9a^16

Step-by-step explanation:

(6)^2= 36

(a^5)^2= a^25

36a^25/(9a^9)

(36/9)= 4

(a^25)/(a^9)= a^(25-9)= a^16

3 0
3 years ago
I need help with this problem. <br>​
Zina [86]

Answer:

(1,4)

Step-by-step explanation:

Let's this of y=\sqrt{x} which is it's parent function.

How do we get to y=-\sqrt{x-1}+4 from there?

It has been reflected about the a-axis because of the - in front of the square root.

It has been shifted right 1 unit because of the -(1) in the square root.

It has been moved up 4 units because of the +4 outside the square root.

In general:

y=a(x-h)^2+k has the following transformations from the parent:

Moved right h units if h is positive.

Moved left h units if h is negative.

Moved up k units if k is positive.

Moved down k units if k is negative.

If a is positive, it has not been reflected.

If a is negative, it has been reflected about the x-axis.

a also tells us about the stretching factor.

The parent function has a starting point at (0,0).  Where does this point move on the new graph?

It new graphed was the parent function but reflected over x-axis and shifted right 1 unit and moved up 4 units.

So the new starting point is (0+1,0+4)=(1,4).

6 0
3 years ago
Read 2 more answers
Simplify 3(x+2)-5x<br><br>1. 6-2x<br>2. 8x+2<br>3.-2x+2<br>4.2x+6​
gulaghasi [49]

Answer:

-2x + 6

Step-by-step explanation:

Step 1: Write expression

3(x + 2) - 5x

Step 2: Distribute

3x + 6 - 5x

Step 3: Combine like terms

-2x + 6

7 0
2 years ago
Read 2 more answers
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