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3 years ago

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Solve the equation

7D%20" id="TexFormula1" title="4x - \frac{3}{5} = \frac{2}{5} " alt="4x - \frac{3}{5} = \frac{2}{5} " align="absmiddle" class="latex-formula">

1 answer:

NeX [460]3 years ago

5 0

So the value of x is simply 1/4

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Please help!!!!! ASAP!!!

nika2105 [10]

That's just the distance between 2 points
the distance between (x1,y1) and (x2,y2) is
$D= \sqrt{(x2-x1)^2+(y2-y1)^2}$

we can find the distance between S and Q or P and R

S and Q is (0,0) and (a,b)

$D= \sqrt{(a-0)^2+(b-0)^2}$
$D= \sqrt{a^2+b^2}$

distance between P and R is between(0,b) and (a,0)
$D= \sqrt{(a-0)^2+(0-b)^2}$
$D= \sqrt{(a)^2+(-b)^2}$
$D= \sqrt{a^2+b^2}$

$\sqrt{a^2+b^2} = \sqrt{a^2+b^2}$
so the lengths of diagonals are congruent

7 0

4 years ago

Please help!! Find x, A, B, and C

BARSIC [14]

Answer:

180= 2x+ 4x+ 3x

180= 9x

x=20

a= 40

b= 80

c= 60

40+60+80= 180 (checking answers)

Step-by-step explanation:

6 0

3 years ago

Guess a number between 1 and 10. First one to guess the number I'm thinking of will be awarded brainliest

Dominik [7]

Answer:

5

Step-by-step explanation:

This is the answer of your question.

7 0

3 years ago

Read 2 more answers

Are these all correct? Please let me know quickly.

arlik [135]

yes!!!!!!!!!!!!!!!!!!!!!

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4 years ago

Help PLEASE!! This is my last question of this QUIZ THAN I'LL BE FREE!!<br> 20 pts!!!!

EastWind [94]

Answer:

y=0.012x+0.65

Step-by-step explanation:

And again y=mx+c

we have 4 point given in the question

(50,1.25) ( 100,1.85) ( 150,2.45) (200,3.05)

we can find the M ( gradient/Slope) by using 2 of them with the formula

I am using the first 2 (50,1.25) ( 100,1.85)

$\frac{y2-y1}{x2-x1}$

$\frac{1.85-1.25}{100-50} \\\frac{0.6}{50}$

which in decimal form is 0.012

with that cross out the first option as its wrong

now to find c, like in the previous two question, put the m, x and y in the equation and solve for C

I am gonna use the 3rd coordinates for this one (150,2.45)

2.45=0.012(150)+c

2.45=1.8+c

0=1.8-2.45+c

-c=-0.65

c=0.65

So our completed equation is y=0.012x+0.65

The third answer is correct :)

8 0

3 years ago

Read 2 more answers