Ask question

Ask question

All categories

3 years ago

7

BC= I need someone help... anybody know how to do this?

1 answer:

Tems11 [23]3 years ago

3 0

<h3>Answer: 10.99</h3>

Work Shown:

Angle B = 20 is the reference angle

AC = 4 is the side opposite this reference angle

BC = x is the unknown adjacent side

tan(angle) = opposite/adjacent

tan(B) = AC/BC

tan(20) = 4/x

x*tan(20) = 4

x = 4/tan(20)

x = 10.9899 approximately (make sure your calc is in degree mode)

x = 10.99 rounding to two decimal places

BC = 10.99

You might be interested in

This skateboard ramp has two ladders. On ladder is 40 feet high and the other is 24 feet high. The distance from the top of the

Verizon [17]

Okay, so we know that the distance from the high ladder to the bottom is 200 feet... if you take 200/40 its 5 now take 24*5 and the answer should be 120

8 0

3 years ago

What is the axis of symmetry of h(x)=5x^2+40x+64

Damm [24]

The axis of symmetry of a parabola is the vertical line passing through its vertex. Given a parabola $ax^2+bx+c=0$ , the vertex x-coordinate can be found using

$x = -\dfrac{b}{2a}$

In your case, the formula leads to

$x = -\dfrac{40}{10} = -4$

So, this parabola is symmetric with respect to the line $x = -4$

3 0

3 years ago

Michaels is using the rectangular board shown below to make a table top

valina [46]

C it’s 366 cm that’s how you would know the rectangular board

6 0

3 years ago

Find m<1 and m<2. Justify your answer.

Natalija [7]

Answer:

M<1 80 by the corresponding angles postulate

Step-by-step explanation:

4 0

3 years ago

Write an exponential function in the form y=ab^xy=ab x that goes through points (0, 20)(0,20) and (6, 1280)(6,1280).

Phoenix [80]

Answer:

$y=20(2)^x$

Step-by-step explanation:

We want to write an exponential function that goes through the points (0, 20) and (6, 1280).

The standard exponential function is given by:

$y=ab^x$

The point (0, 20) tells us that <em>y</em> = 20 when <em>x</em> = 0. Hence:

$20=a(b)^0$

Simplify:

$20=a(1)\Rightarrow a=20$

So, our exponential function is now:

$y=20(b)^x$

Next, the point (6, 1280) tells us that <em>y</em> = 1280 when <em>x</em> = 6. Thus:

$1280=20(b)^6$

Solve for <em>b</em>. Divide both sides by 20:

$64=b^6$

Therefore:

$b=\sqrt[6]{64}=2$

Hence, our function is:

$y=20(2)^x$

8 0

3 years ago