3 years ago

Hello if you answer this question i will post another question giving 100 points

Mathematics

2 answers:

eduard3 years ago

8 0

Answer:

what's your question even-

diamong [38]3 years ago

4 0

Answer:

ok?

Step-by-step explanation:

<h2><u><em>Brainliest?</em></u></h2>

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What is the surface area of a sphere with radius 2?

VladimirAG [237]

$\textit{surface area of a sphere}\\\\ SA=4\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=2 \end{cases}\implies \begin{array}{llll} SA=4\pi (2)^2\implies SA=16\pi \\\\\\ SA\approx 50.27 \end{array}$

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2 years ago

<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B9x%2B20%3D0" id="TexFormula1" title="x^{2} +9x+20=0" alt="x^{2} +9x+20=0" ali

Hoochie [10]

Answer:

We have been given an equation $x^2+9x+20=0$

We will factorize it by middle term splitting.

Step 1: $x^2+5x+4x+20=0$

Taking common factors out by clubing first two terms ad last two terms

Step 2: $x(x+5)+4(x+5)=0$

Step 3: $(x+4)(x+5)=0$

Equating both above factors to zero as:

Step 4: $(x+4)=0\Rightarrow x=-4$

And $(x+5)=0\Rightarrow x=-5$ .

3 0

3 years ago

Read 2 more answers

Why wasn't i doing this sooner :)

Licemer1 [7]

Step-by-step explanation:

Morning is 4 hr 15 min

afternoon is 4 hour 15 min

together is 8 hour 30 min

8.5*14 = 119 dollars

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3 years ago

Elena and Jorge have similar problems and find the same answer. Each determines that the solution to e problem is 24.

Colt1911 [192]

What is the question??

6 0

3 years ago

Solve for x in the diagram below

ella [17]

Answer:

Step-by-step explanation:

3x + x + 100 = 180 (sum of angles on a straight line)

4x = 180-100

4x=80

divide both sides by 4

x=20

8 0

3 years ago