Find the roots of... X^2+10X+34

Answers

Answer 1

Answer: $x^2+10x+34=0\n\nx^2+2\cdotx\cdot5+5^2+9=0\n\n(x+5)^2=-9\ \ \ \Rightarrow\ \ \ no\ real\ solution\n\n(x+5)^2=9\cdot i^2\ \ \ \Rightarrow\ \ \ ( x+5=3i\ \ \ \ \ \ \ or\ \ \ \ \ \ \ \ x+5=-3i)\n\nx_1=-5+3i,\ \ \ \ \ x_2=-5-3i\ \ \ \rightarrow\ \ \ two\ complex\ numbers\ solution$

Answer 2

Answer: $x^(2) +10x+34=0\n \n \Delta=10^2-4.1.34=100-136=-36\n \n \boxed{x=(-10\pm√(-36))/(2)=(-10 \pm6i)/(2)=-5\pm3i}$

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Solve for n. Round to the nearest tenth, if necessary.

47/n = 36/54

Answers

$(36)/(54)=(36:18)/(54:18)=(2)/(3)\n\n(47)/(n)=(2)/(3)\ \ \ |cross\ multiply\n\n2\cdot n=3\cdot47\n\n2n=141\ \ \ \ |divide\ both\ sides\ by\ 2\n\nn=(141)/(2)\n\n\boxed{n=70.5}$

$47/n = 36/54$

$47/n=2/3$

$47=2/3n$

$47=2n/3$

$47*3=2n$

$141=2n$

$141/2=n$

Decimal Form: 70.5

How to solve this step by step

Answers

yo has to factor since we assume that
if you have xy=0, x and y=0

7n^2-48n+36=0
trial and error
(7n-6)(n-6)=0

set each to zero
7n-6=0
add 6
7n=6
divide 7
n=6/7

n-6=0
add 6
n=6

n=6/7 or 6

Andrea drove 500 miles in 10 hours. find the average number of miles per hour that andrea drove

Answers

andrea drove 50miles/hour
refer to pic for working

500 miles / 10 hours = 50 miles per hour.

Please make this answer the brainiest!

The average annual rainfall for a town is 43.2 what is the average monthly rainfall

Answers

For this answer all you have to do is multiply 43.2 by 12 because there is 12 months in one year....your answer would be 518.4.

i need help asap! ONLY GIVING BRAINLIEST TO CORRECT! If your answer is not correct, im deleting it :)) I NEED TO GET THIS CORRECT thank youu

Answers

Answer:

Step-by-step explanation:

The candle is cylindrical in shape.

The formula for determining the volume of a cylinder is expressed as as

Volume = πr²h

Where

π = 3.14

r represents radius of the cylinder and also the candle

h represents the height of the cylinder and also the candle.

Looking at the diagram,

r = 4 cm

h = 6 cm

Volume of candle = 3.14 × 4² × 6

= 301.44 cm³

Looking at the table,

60 cm³ of the candle melts off in 2 hours, it means that the in one hour, the volume of candle that melts off would be 60/2 = 30cm³

Therefore, in 7 hours, the volume of candle that would melt off is

30 × 7 = 210 cm³

Therefore, the percent of candle that is melted off after 7 hours would be

210/301.44 × 100 = 69.67%

Approximately 70% to the nearest percent.

Answer:

After 7 hours about 70% of the candle was melted

PLEASE HELP IFL WHAT THIS QUESTION MEANSa. Look at the two similar shapes below. Which sides correspond? Write common ratios with the
names of sides and lengths.

Answers

As per the question no (a) The areas corresponding to each other are triangles ABC and DEF, and the common ratios are AB/DE = 5/2 and BC/EF = 5/2. Lets find the solution :-

Now,

In triangles ABC and DEF, we have the following:-

∠A and ∠D are congruent, so we can say ∠A = ∠D.

∠C and ∠F are congruent, so we can say ∠C = ∠F.

Now, to find which areas correspond, let's compare the ratios of corresponding sides:-

AB/DE = 15/6 = 5/2

BC/EF = 20/8 = 5/2

These ratios are equal, indicating that sides AB and DE correspond, and sides BC and EF correspond. So, the areas corresponding to each other are triangles ABC and DEF, and the common ratios are AB/DE = 5/2 and BC/EF = 5/2.

Learn more about triangles:

brainly.com/question/29196982

#SPJ1

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