All categories

3 years ago

10x + 10y = −10 9x + 10y = −18

Mathematics

2 answers:

Anna71 [15]3 years ago

6 0

Answer:

(8,-9)

Step-by-step explanation:

andreev551 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

10x+10y=-10

9x+10y=18

= 10x+10y=-10

-9x-10y=18

= x=8

step two is to find y:

10x+10y=-10

10(8)+10y=-10

80+10y=-10

10y=-90

y=-9

your answer:

(x,y)= (8,-9)

You might be interested in

Hi, please help me with this thank you!

sdas [7]

5 hope this helps sorry if wrong

5 0

3 years ago

Need help with the picture above:

lozanna [386]

The third option i think BTW if you don’t know an awnser always chose C

4 0

2 years ago

write the equation and find the values of x. round side lengths to the nearest tenth and angle measures to the nearest degree

Vlad1618 [11]

Answer:

x = 44°

Step-by-step explanation:

Equation:

cos x = 15/21
cos x = 0.714
x = arccos 0.714
x = 44° (rounded to the nearest degree)

3 0

2 years ago

Is this graph a function?

sashaice [31]

Answer:

Yes!

Step-by-step explanation:

Because it passes the vertical line test.

6 0

3 years ago

Read 2 more answers

The distribution of prices for home sales in a certain New Jersey county is skewed to the right with a mean of $290,000 and a st

I am Lyosha [343]

Answer:

The probability that the mean of the sample is greater than $325,000

$P( X > 3,25,000) = P( Z >2.413) = 0.008$

Step-by-step explanation:

Step(i):-

Given the mean of the Population( )= $290,000

Standard deviation of the Population = $145,000

Given the size of the sample 'n' = 100

Given 'X⁻' be a random variable in Normal distribution

Let X⁻ = 325,000

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } } = \frac{325000-290000}{\frac{145000}{\sqrt{100} } } = 2.413$

Step(ii):-

The probability that the mean of the sample is greater than $325,000

$P( X > 3,25,000) = P( Z >2.413)$

= 0.5 - A(2.413)

= 0.5 - 0.4920

= 0.008

Final answer:-

The probability that the mean of the sample is greater than $325,000

$P( X > 3,25,000) = P( Z >2.413) = 0.008$

6 0

2 years ago