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3 years ago

What is the answer to 5x squared=2x+3

Mathematics

1 answer:

katen-ka-za [31]3 years ago

5 0

Hopefully this will help you

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I don’t know how to solve this

Misha Larkins [42]

Answer:

answers are shown and pictured

8 0

4 years ago

Lexi is making a scale drawing of a soccer field that is 120 yards long and 80 yards wide and the field is that see strong is 30

vekshin1

Answer:

45 cm

Step-by-step explanation:

l = Length of football field is 120 yards

w = Width of football field is 80 yards

The ratio of the sides is $\dfrac{l}{w}=\dfrac{120}{80}=\dfrac{3}{2}$

Now the width of the field is 30 cm = w'

$\dfrac{l'}{w'}=\dfrac{l}{w}\\\Rightarrow l'=\dfrac{l}{w}\times w'\\\Rightarrow l'=\dfrac{3}{2}\times 30\\\Rightarrow l'=45\ \text{cm}$

The length of the field in the drawing is 45 cm.

5 0

3 years ago

Please please help me

Mekhanik [1.2K]

Answer:

Your numbers are +7, -9, and 25

Step-by-step explanation:

Reverse the values of -7 and +9

Then you get +7 and -9

And also take radius squared which is 25

So, $(x--7)^{2} +(y-9)^{2} = 25$

5 0

4 years ago

Find the sum of the following infinite geometric series, if it exists. ½ + -¼ + ⅛ + -1/16 +...

Dominik [7]

Hmm

each term is multiplied by a constant
1/2 times what=-1/4? that is -1/2
-1/4 times what=1/8? that is -1/2

so r=-1/2

does it converge or diverge?
if it converges, it has an infinite sum
if it diverges, it does not

if |r|<1 then it converges
|-1/2|<1?
1/2<1?
true
it converges and has a sum

the sum of an infinite geometric series is
$S_n=\frac{a_1}{1-r}$ where a1 is the first term and r=common ratio

a1=1/2
r=-1/2

$S_{\infty}=\frac{\frac{1}{2}}{1-(\frac{-1}{2})}$
$S_{\infty}=\frac{\frac{1}{2}}{1+\frac{1}{2}}$
$S_{\infty}=\frac{\frac{1}{2}}{\frac{3}{2}}$
$S_{\infty}=(\frac{1}{2})(\frac{2}{3})$
$S_{\infty}=\frac{2}{6}$
$S_{\infty}=\frac{1}{3}$

the sum is $\frac{1}{3}$

7 0

3 years ago

blagie [28]

hope it helps.I was reading the same chapter

5 0

3 years ago