3 years ago

Charley Davis is 1/4 as old as his father. The sum of their ages is 45. How old is each person?

Mathematics

1 answer:

Talja [164]3 years ago

8 0

Answer:36 dad 9 charley

Step-by-step explanation:

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zhannawk [14.2K]

Answer:

The answer is Option B

Step-by-step explanation:

Step 1: Find the points

The leftmost point is: (-3, -1)

The next point is: (-2, 2)

The next point is: (1, 0)

The next point is: (3, 1)

The rightmost point is: (4, -2)

Answer: The answer is Option B

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3 years ago

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The measure of angle O is 7pi/6. The measure of its reference angle is.... ° and sin O is .....

scoray [572]

$\frac{7 \pi }{6}$ is in the 3rd quadrant... (It is also 210 degrees)
To find the reference angle (which is the distance to the x-axis)
$\frac{7 \pi }{6} - \pi = \frac{ \pi }{6}$ (or 30 degrees)

sin $\frac{ \pi }{6} = \frac{1}{2}$

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4 years ago

The image of the polygon ABCDE reflected across the x-axis. A(-1,-1),B(0,1),C(4,2),D(6,0),E(3,-3) The vertices of the image are.

4vir4ik [10]

A reflection across the x-axis has the rule:

(x,y)→(x,-y).

Then:

A(-1,-1)→A'(-1,1),
B(0,1)→B'(0,-1),
C(4,2)→C'(4,-2),
D(6,0)→D'(6,0),
E(3,-3)→E'(3,3).

Answer: the vertices of the image are A'(-1,1), B'(0,-1), C'(4,-2), D'(6,0) and E'(3,3).

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4 years ago

There are 6 quarters in a jar. Jill adds 2 quarters to the jar every day. Which linear equation represents the total amount of q

I am Lyosha [343]

Given: Say 6Q = 6 quarters in a jar 2Q is added everyday After X days, Amount of quarters = 6Q + (2Q * X) So answer would be: D) which is y = 2x + 6

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4 years ago

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What is the answer please asap !!

igor_vitrenko [27]

Answer:

KL=2

Step-by-step explanation:

JK+KL=JL

3x+x+1=5

4x=5-1

4x=4

x=1

KL=x+1

KL=2

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3 years ago