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4 years ago

What is the answer to this problem 5n^2+10n+20

2 answers:

8 0

So factor out the 5
5(n^2+2n+4)
this cannot be simplified unless you use quadratic formula and the answer is non-real
<u>
</u>

krek1111 [17]4 years ago

7 0

There's no solution, it a trinomial equation thats in its simplest form.

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You may have polarized sunglasses that eliminate glare by polarizing the light. When light is polarized, all of the waves are tr

HACTEHA [7]

Answer:

Step-by-step explanation:

Given the intensity of the transmitted light It and θ are related by the equation Cosθ= √ Io/It, we are to write lt as a function of lo

Given the equation

Cosθ= √ Io/It

Let us make lt the subject of the formula;

square both sides of the equation

(Cosθ)²= (√ Io/It)²

cos²θ = lo/lt

cross multiply

ltcos²θ = lo

divide both sides by cos²θ

ltcos²θ/ cos²θ= lo/cos²θ

lt = lo/cos²θ

Hence the expression of lt as a function of lo is lt = lo/cos²θ

8 0

3 years ago

El área de la región rectangular es 4400cm2. Calcula el valor de m

Roman55 [17]

Answer:

m=52.17

Step-by-step explanation:

<em>The complete question in Spanish is</em>

El área de la región rectangular es 4400 cm2. Calcular el valor de m

largo :2m-20

ancho: m

<em>The question in English is</em>

The area of the rectangular region is 4400 cm2. Calculate the value of m

length :2m-20

width: m

we know that

The area of a rectangle is equal to

$A=LW$

where

L is the length

W is the width

we have

$A=4,400\ cm^2$

$L=(2m-20)\ cm$

$W=m\ cm$

substitute in the formula the given values and solve for m

$4,400=(2m-20)m$

Distribute in the right side

$4,400=2m^2-20m$

$2m^2-20m-4,400=0$

Solve the quadratic equation by graphing

Using a graphing tool

The solution is m=52.17 (the positive value is the solution)

see the attached figure

8 0

3 years ago

7/100 - 6/100= 1/100 right?

AleksandrR [38]

Answer:

yea it is

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4 0

3 years ago

508 exceeds six times a number by 70. What is the number?

MAVERICK [17]

Answer:

A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words

Step-by-step explanation:

mark as me brainliest

4 0

3 years ago

Read 2 more answers

Given the point and slope, write the equation of the line

Ratling [72]

$\bf (\stackrel{x_1}{1}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{-1}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-1-4}{6-1}\implies \cfrac{-5}{5}\implies -1 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-4=-1(x-1) \\\\\\ y-4=-x+1\implies y=-x+5$

$\bf (\stackrel{x_1}{-12}~,~\stackrel{y_1}{14})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{-1}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-1-14}{6-(-12)}\implies \cfrac{-15}{6+12}\implies \cfrac{-15}{18}\implies -\cfrac{5}{6}$

$\bf \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-14=-\cfrac{5}{6}[x-(-12)] \\\\\\ y-14=-\cfrac{5}{6}(x+12)\implies y-14=-\cfrac{5}{6}x-10\implies y=-\cfrac{5}{6}x+4$

7 0

3 years ago