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4 years ago

If x-y =8 find the value of y when x=3

1 answer:

8 0

Answer: y = -5

Substitute in 3 for x.
x - y = 8 Substitution
3 - y = 8 Subtract 3 from both sides
-y = 5 Divide by -1 to both sides
y = -5 Answer!

You can also check your work.
x - y = 8
3 - (-5) = 8
3 + 5 = 8
8 = 8

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Y=(1/2)^x +2. What is the horizontal asymptote of this function?

professor190 [17]

$\lim_{x\to -\infty} \left(\frac{1}{2}\right)^x+2=\infty+2=\infty\\
\lim_{x\to \infty} \left(\frac{1}{2}\right)^x+2=0+2=2\\$

There is one-sided horizontal asymptote $y=2$

6 0

4 years ago

The height of a a triangle is 6 centimeters more than double its base in centimeters. What is the height of the triangle, in cen

Firdavs [7]

H=2b+6 and you are told that b=8 so

h=2(8)+6

h=16+6

h=22cm

8 0

3 years ago

Read 2 more answers

An equation is shown below:

lbvjy [14]

Step-by-step explanation:

Step 1: 12x-6= 1

step 2:12x=7

5 0

3 years ago

In ΔVWX, the measure of ∠X=90°, WX = 8.3 feet, and XV = 2.5 feet. Find the measure of ∠W to the nearest tenth of a degree.

kiruha [24]

Answer:

16.76°

Step-by-step explanation:

In ΔVWX, the measure of ∠X=90°, WX = 8.3 feet, and XV = 2.5 feet.

We want to find the measure of <W.

We know side length that is adjacent and opposite to <W.

We can use the tangent ratio, to find the measure of <W.

The tangent ratio is opposite over hypotenuse.

$\tan(m \angle \: w) = \frac{2.5}{8.3}$

$\tan(m \angle \: w) = 0.301$

Take tangent inverse to get:

$m \angle \: w= { \tan}^{ - 1} (0.301)$

$m \angle \: w=16.76 \degree$

7 0

3 years ago

Simplify the expression 4|-4|

Naddik [55]

An absolute value means something distance from 0, so |8| = 8 because the distance of 8 from 0 is 8. However the |-8| still equals 8 because the distance from -8 to 0 is 8

So with that in mind, we know that |-4| is 4 because the distance -4 is from 0 is 4

So we have 4*4 = 16

3 0

4 years ago

Read 2 more answers