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3 years ago

14

Can you help me plz

1 answer:

Irina-Kira [14]3 years ago

5 0

Some numbers are 195.33, 195.29, and 195.31. 195.29 was chosen because when you round it to the nearest tenth, you look at the number right after the cutoff. In this case, it's 9. Since it's above 9, you round your number up. Therefore, it would be 195.3.

Hope this helps!

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If y = 10x - 1 and the value of x is 10, what is the value of y?

KatRina [158]

Answer:

99

Step-by-step explanation:

99 because x= 10 so 10 times 10 is 100 - 1 will = 99

5 0

3 years ago

the value of k so that the line Containing the points (-8,k) and (-4,-8) is perpendicular) to the line containing the points (10

In-s [12.5K]

Answer:

$k= \frac{-34}{3}$

Step-by-step explanation:

<u>Step 1 :</u>-

<u>Perpendicular condition :-</u>

<u>Step 1:-</u>

Two non-vertical lines are perpendicular to each other if and only if their slopes are negative reciprocals of each other.

$m_{2} = \frac{-1}{m_{1} }$

$m_{1} m_{2} = -1$

<u>Step 2:-</u>

The given points are (-8,k) and (-4,-8)

$m_{1} = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

finding slope of the first line is $m_{1}$

using formula $m_{1} = \frac{-8-k}{-4+8}$

= $\frac{-8-k}{4}$

finding slope of the second line is $m_{2}$

using formula $m_{2} = \frac{--5+11}{5-10}$

= $\frac{6}{-5}$

<u>Step 3:</u>-

using perpendicular condition

The two lines are perpendicular and their slopes are

$m_{1} m_{2} = -1$

$(\frac{-k-8}{4} )(\frac{-6}{5} )= -1$

simplification,we get solution is

$\frac{6(k+8)}{20} =-1$

$6 k+48 =-20$

$6 k = -20 -48$

$6 k = -68$

$\frac{-68}{6}$

$k= \frac{-34}{3}$

<u>Final answer is </u>

$k= \frac{-34}{3}$

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3 years ago

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worty [1.4K]

Answer:40100 feet

Step-by-step explanation:26400 +13700 = 40100

5 0

3 years ago

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Which are the solutions of x2 = -5x + 8?

salantis [7]

Answer:

x=

2

−5−

57

=−6.275

x=

2

−5+

57

=1.275

Step-by-step explanation:

3 0

3 years ago

Please help with this asappppppppll

Vlad [161]

Answer:

(x-9)^2 + (y-9)^2 = 81

<u>Step-by-step explanation:</u>

<u>Step-by-step explanation:Equation of a circle</u>

( x - h )<em>^2 + </em>( y - k )<em>^2 = </em>r^<em>2 </em>

Your graph - the circle intersects the x-axis at (9 , -9)

- the circle intersects the y-axis at (9 , -9)

h = the number on the x axis intersected by the circle.

k = the number on the y axis intersected by the circle.

r = radius of the circle measured starting from the origin.

plug these in:

( x - h )^2 + ( y - k )^2 = r^2.

(x - 9)^2 + (y - 9)^2 = 9^2

(x-9)^2 + (y-9)^2 = 81

4 0

3 years ago

Read 2 more answers