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pochemuha
3 years ago
6

22. Four years ago, Samantha was three times as old as Danny. Four years fromnow, Samantha will be only twice as old as Danny. H

ow old are they now?
Mathematics
1 answer:
Mama L [17]3 years ago
8 0
Danny is 12 and Samantha is 28
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2.<br> What is the equation of a hyperbola with a = 8 and c=20
jek_recluse [69]

Answer:

Just Assume that the transverse axis is horizontal

5 0
2 years ago
Two equations are given below: a – 3b = 22 a = b – 2 What is the solution to the set of equations in the form (a, b)? (–10, –8)
aliya0001 [1]
Hi Kristian

a - 3b = 22
a = b - 2

We need to solve a = b -2 for a
First, we need to substitute b - 2 for a in a - 3b = 22
a - 3b = 22
b - 2 - 3b = 22
-2b - 2 = 22
 -2b = 22 + 2
-2b = 24
b = 24/-2
b = -12

Now substitute -12 for b in a = b - 2
a = b -2
a= -12 - 2
a= -14

Thus, the solution is a = -14 and b = -12

The correct option is the last one (-14,-12)


If you have questions about my answer, please let me know.


Good luck! 

4 0
3 years ago
The coordinates triangle ABC are A (0, 2), B (-2, 6), and C (4, 0). Find the slope of BC.
salantis [7]

In the given triangle, the slope of line BC is (C) -1.

<h3>What is the slope?</h3>

In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction.

A line's slope is how steeply it slopes from LEFT to RIGHT.

The slope of a line is determined by dividing its rise, or vertical change, by its run, or horizontal change.

No matter which two locations on the line you choose, the slope of a line is always constant (it never varies).

So, the slope of line BC:

Coordinates of BC are:

B: (-2, 6)

C: (4, 0)

Slope formula: m = y2-y1/x2-x1

Now, substitute the values and calculate as follows:

m = y2-y1/x2-x1

m = 0-6/4-(-2)

m = -6/6

m = -1

Therefore, in the given triangle, the slope of line BC is (C) -1.

Know more about slopes here:

brainly.com/question/29280886

#SPJ1

8 0
11 months ago
Solve the system by substitution.<br> x= -5y - 6<br> 5x – 3y = -2 <br> What’s is the solution?
Alecsey [184]
(-1,-1)

I recommend photomath, it helps with all equations!
7 0
3 years ago
PLEASE HELP I NEED THIS
aleksklad [387]

Answer:

Answer is 18 degrees.

Step-by-step explanation:

7 0
2 years ago
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