Please help. Algebra.

Mathematics

1 answer:

Vitek1552 [10]3 years ago

8 0

Answer:

A) SUBTRACT 3x by both sides of the bottom equation.

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Whose correct & whats an equation to solve for x.

Effectus [21]

Answer:

Step-by-step explanation:

x is the side opposite the angle of 12 degrees

we know the hypotenus is 20 ft

we don't know what the side length that is adjacent to the angle

----------------

ADJ/HYP = cos (of the angle)

OPP/HYP = sin (of the angle)

sin/cos = tan (of the angle) = ( OPP/HYP) / (ADJ/HYP) = OPP/ ADJ

How would we solve for x the side opposite the angle?

So who is right?

3 0

3 years ago

4 1/2+5 7/8<br><img src="https://tex.z-dn.net/?f=help%20%5C%3A%20please%20%5C%3A%20" id="TexFormula1" title="help \: please \: "

Rasek [7]

9/2+5/78
9/2+47/8
83/8
10 3/8
decimal form 10.375.
hope this helps!

7 0

3 years ago

Can anybody help me with 1 and 2

Anit [1.1K]

1) $x \geq 96$
2) $x\ \textless \ 38$

Here, the variable $x$ can assume any value, and usually an inequality presented like this has $x$ as a stand-in for all real numbers. If we really wanted to make that fact clear, we could write the two inequalities like this:

$x \geq 96, x\in\mathbb{R}\\ x\ \textless \ 38, x\in\mathbb{R}$

Formally, you'd read $x\in\mathbb{R}$ as " $x$ is an element of the set of real numbers," which is a fancy way of saying that $x$ can be any real number.

8 0

3 years ago

AC=<br> Help me please!! Thanks so much

katovenus [111]

Answer:

AC = 6√3 in

Step-by-step explanation:

<h3>Finding the length of the chord:</h3>

Join OC. Now ΔAOC is an isosceles triangle as OA = OC =radius.

∠A = ∠C = 30.

∠A + ∠C + ∠AOC = 180 {angle sum property of traingle}

30 + 30 + ∠AOC = 180°