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3 years ago

Do someone know this ???

Mathematics

2 answers:

Ad libitum [116K]3 years ago

8 0

I believe that the answer to thing would be

exact form: -97/30

decimal form: 3.23

mixed number form: -3 7/30

i dont know which you need but there are the ones i know

Inessa [10]3 years ago

5 0

Answer:

I’m asking cause I don’t know

Step-by-step explanation:

You might be interested in

Find the number of 3-digit numbers formed using the digits 1 to 9, without repetition, such the numbers either have all digits l

Tasya [4]

Answer: 120

Step-by-step explanation:

The total number of digits from 1 to 9 = 10

The number of digits from less than 5 (0,1,2,3,4)=5

Since repetition is not allowed so we use Permutations , then the number of 3-digit different codes will be formed :-

$^5P_3=\dfrac{5!}{(5-3)!}=\dfrac{5\times4\times3\times2!}{2!}=5\times4\times3=60$

The number of digits from greater than 4 (5,6,7,8,9)=5

Similarly, Number of 3-digit different codes will be formed :-

$^5P_3=60$

Hence, the required number of 3-digit different codes = 60+60=120

3 0

3 years ago

Help me please. I really need help

artcher [175]

Answer:

B. $42.60.

Step-by-step explanation:

On the first day price is 43.85 + 2.70 = $46.55

second day price is 46.55 + 2.70 = $49.25

For the next 2 days it goes down $1.10 so the price is $49.25 - 2.20=$47.05

On the last day it loses $4.45 so the final price is $47.05-4.45 = $42.60.

7 0

3 years ago

What two numbers add up to 6 and multiply to 12?

GuDViN [60]

Erm

x+y=6
xy=12

x+y=6
y=6-x
sub back

xy=12
x(6-x)=12
6x-x^2=12
x^2-6x=-12
x^2-6x+12=0
quadratic formula
for
ax²+bx+c=0
$x= \frac{-b+/- \sqrt{b^2-4ac} }{2a}$

for
x²-6x+12=0
a=1
b=-6
c=12
and remember that √-1=i

$x= \frac{-(-6)+/- \sqrt{(-6)^2-4(1)(12)} }{2(1)}$
$x= \frac{6+/- \sqrt{36-48} }{2}$
$x= \frac{6+/- \sqrt{-12} }{2}$
$x= \frac{6+/- (\sqrt{-1})(\sqrt{12}) }{2}$
$x= \frac{6+/- (i)(2\sqrt{3}) }{2}$
$x= \frac{6+/- 2i\sqrt{3} }{2}$
x=3+/-i√3

the numbers are 3+i√3 and 3-i√3
no real numbers tho

7 0

3 years ago

Help Ftmtrntnnrnrnrnrrrn

tangare [24]

39/89 because of sohcahtoa

7 0

2 years ago

Half a number plus 5 is 11.What is the number?

user100 [1]

12. if you take half of 12, 6, then you add 5, you get 11.

3 0

2 years ago