Find the missing side round to the nearest tenth if needed

ANWSER these three questions show ur work, if u can is somewhat optional

Airida [17]

Answer:

1. 35 2. 565.5 3. 12.28

Step-by-step explanation:

1. Triangle 1 & 2: 7x3=21

You do not have to divide by 2 is since there are two triangles.

Semi-circle: 14.13

2. Trinagle: 29x19/2 = 275.5

Rectangle: 29x10 = 290

3. Triangle: 3x4/2 = 6

Semi-circle: 3.14x4/2 = 6.28

<em>Took a long time- Please give Brainliest and points!</em>

7 0

3 years ago

A linear function is parallel to the line y= 4x + 8 and also goes through the point (2,15).What is the linear equation for this

horrorfan [7]

When written in the $y=mx+q$ form, the slope of a line is given by the coefficient $m$ . Moreover, two lines are parallel if the have the same slope.

Now, the slope of the known line is 4, so our line's slope will be four as well.

In general, when you know the slope $m$ of a line and one of its points $(x_0,y_0)$ , the equation of the line can be derived from the following formula:

$y-y_0 = m(x-x_0)$

Which in your case becomes

$y-15 = 4(x-2)$

Expand the right hand side and solve for y:

$y = 4x+7$

3 0

4 years ago

Trigonometry that’s due in one hour :(

expeople1 [14]

Answer:

(a) $\theta=\tan^{-1}(-0.890)$

$\implies \theta=-41.66908262 \pm 180 \textdegree n$

$\implies \theta=138.3309174..., 318.3309174...$

$\implies \theta=138\textdegree, 318\textdegree$

(b) $\theta=\cos^{-1}\left(\dfrac{\sqrt{3} }{2}\right)$

$\implies \theta=30 \textdegree \pm360 \textdegree n, 330 \textdegree \pm360 \textdegree n$

$\implies \theta=30 \textdegree , 330 \textdegree$

(c) $\theta=\sin^{-1}\left(\dfrac{1 }{2}\right)$

$\implies \theta=30 \textdegree \pm360 \textdegree n, 150 \textdegree \pm360 \textdegree n$

$\implies \theta=30 \textdegree , 150 \textdegree$

3 0

2 years ago

Which equation below gives an incorrect value for the function k(x) = 512 x ?

Rus_ich [418]

The function is k(x) = 512 · x .

Try 'A': k(2/3) = (512) · (2/3) = 341.33... not 64

Try 'B': k(4/9) = (512) · (4/9) = 257.55... not 16

Try 'C': k(1/3) = (512) · (1/3) = 170.66... not 8

Try 'D': k(2/9) = (512) (2/9) = 113.77... not 8 .

So far, it looks like NONE of the choices is correct.

But wait ! There's more !

What if the actual function is    k(x) = 512ˣ
that is, 512 raised to the 'x' power ?
That would be a horse of a different cruller.

Let's try THAT out.

First, here are two facts that we'll need:

   ==> 512 ^ 1/3 = 8
and
   ==> 512 ^ 1/9 = 2 .

OK. NOW ...

Try 'A': k(2/3) = (512) ^ 2/3 = 8^2 = 64    yes !

Try 'B': k(4/9) = (512) ^ 4/9 = 2^4 = 16 yes !

Try 'C': k(1/3) = (512) ^ 1/3 = 8 yes !

Try 'D': k(2/9) = (512) ^ 2/9 = 2^2 = 4 not 8 .

So here's what we have learned:

-- The function in the question is actually k(x) = 512 ^ x

-- Choice-D is the incorrect one.

5 0

3 years ago

What is the constant in the mathematical expression? 3/4ab+7.5

melamori03 [73]

Answer:

Therefore, 7.5 is the constant in mathematical expression.

Step-by-step explanation:

Given the mathematical expression:

$\frac{3}{4}ab+7.5Explanation[tex]\frac{3}{4}$ is cofficient of ab in this expression.

ab is variable( whose values can be changed).

7.5 is a constant term ( whose value can't be changed).

Therefore, 7.5 is the constant in mathematical expression.

5 0

3 years ago