MATHEMATICS HIGH SCHOOL

Which is equal to 7/25? 0.70 0.70 0.28 0.28 0.07 0.07 0.35 answer

Answers

Answer 1

Answer:

Answer:

0.28

Step-by-step explanation:

7/25 is 0.28, you can do this on a calculator OR

25*4=100, that will get you the decimal when you do 7*4 and get 28, then turn it back into a decimal by dividing by 100

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A line passes through (1,1) , (-2,4) , and (6,n) . Find the value of n.

Answers

Answer:

$n=-4$

Step-by-step explanation:

The line passes through the points $\left ( 1,1 \right ),\:\left ( -2, 4\right ),\:\left ( 6,n \right )$

We know that equation of a line passing through two given points $\left ( x_(1),y_(1) \right )$ and $[tex]y-1=(4-1)/(-2-1)\left ( x- 1\right )$ [/tex]

Here, $x_(1) =1, x_(2) =-2,y_(1) =1,y_(2) =4$

So, equation of the line is $y-1=(4-1)/(-2-1)\left ( x- 1\right )$

$y-1=(3)/(-3)\left ( x- 1\right )$

$y-1=-x+1$

$x+y=2$

So, the equation of the line is $x+y=2$ .

As, the point $(6,n)$ lies on the line, will satisfy the equation of the line.

$6+n=2\:\:\left [\because x=6,y=n\right ]$

$n=-4$

Hence, the value of n is $-4$ .

-4.

The equation for a line is y-y₁=m(x-x₁)
Using the following:
x₁= 1
x₂= -2
y₁= 1
y₂= 4

and slope, or m, is (x₂-x₁)/(y₂-y₁),

You can now fill out the equation!
y-(1)=-1(x-(1))
y= -x+2

And solve by substituting the 6, or x₃, into the equation to find the corresponding y value:

y= -(6)+2
y= -4

Therefore,
n=-4

Please show work!!!!!!!

Answers

Answer:

J. 56

Step-by-step explanation:

The picture in this question can be a little deceiving. Each rectangular glass pane is 3 by 10 inches. This means that the picture of the 4 panes overlapping, leaves the center square open. The open area has your inner edges. The question asks for the sum of the inner and outer edges.

Every pane is 10 inches long, so the out perimeter of the figure is 40 inches because the figure has four sides. The rectangles overlap, creating 3 by 3 inch square. 3 inches off either side of a pane leaves 4 inches as the length for the edge of the inner square. Therefore, the perimeter of the inner square is 16 inches.

Outer Perimeter + Inner Perimeter = 40 + 16 = 56 inches

Kylie measured a swimming pool and made a scale drawing. She used the scale 1 inch = 1 foot. What is the scale factor of the drawing?Simplify your answer and write it as a fraction.

Answers

Answer:

40 meter

Step-by-step explanation:

I need help with the problem

Answers

Answer:

Angle Bisector

Step-by-step explanation:

PLEASEEE HELP. Solve x^3-7x^2+6x-42=0

Answers

factor by grouping

x^2(x-7) + 6(x-7) = 0 [took x^2 out of the first two and a 6 out of the last two]
(x-7)(x^2+6) = 0 [moved (x-7) out to the front]
x = -i sqrt(6) , i sqrt(6) , 7

only one real solution of x = 7

$x^(3) -7 x^(2) +6x-42=0$

$(x-7)$ is a factor since it is a factor of -42 and 7 is a solution for f(x) to equal 0.

$(x-7)(a x^(2) +bx+c)=0$

$(x-7)( x^(2) +bx+6)=0$

$-7 x^(2) +b x^(2) =-7 x^(2)$

$-7+b=-7$

$b=0$

$(x-7)( x^(2) +6)=0$

$x-7=0$

$x^(2) +6=0$

$x=7$ (only solution because you can't square root (-6))

A candle manufacturer sells cylindrical candles in sets of three. Each candle in the set is a different size. The smallest candle has a radius of 0.5 inches and a height of 3 inches. The other two candles are scaled versions of the smallest, with scale factors of 2 and 3. How much wax is needed to create one set of candles?