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3 years ago

Pleeeeease check this out and see if it's correct

Mathematics

1 answer:

Anna007 [38]3 years ago

6 0

Answer-

The answer is correct.

Solution-

The length of the side WX of the figure WXYZ = 8 m

The length of the side W'X' of the dilated figure W'X'Y'Z' = 6 m

We know that

$dilation \ factor =\frac{length \ of \ the \ segment \ W'X'}{length \ of \ the \ segment \ WX} =\frac{6}{8} =\frac{3}{4}$

( If the absolute value of the scale factor is greater than 1, then the image will be larger than the pre-image and vice-versa. A negative scale factor causes the dilation to rotate 180 degrees )

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four boxes to be mailed are weighed at the post office. box A weighs 8.25 pounds box B weighs 8.2 pounds box C weighs 8.225 poun

attashe74 [19]

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Ivan

Answer:

Step-by-step explanation:

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Five times the sum of a number and one is 115. What is the number? Use x as your variable.

ollegr [7]

The initial equation is:
$5(x+1)=115$

Let's transform it for x:
$5x+5=115$

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3 years ago

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What is the slope of the line with points (1, 2) and (4, 2)?

tigry1 [53]

Answer:

Step-by-step explanation:

To find the slope of two points, here is the formula (y2-y1)/(x2-x1)

So we have (1,2) and (4,2),

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So, (2-2)/(4-1) = 0/3

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3 years ago

Find the coordinates of the point 7/10 of the way from A to B. a=(-3,-6) b=(12,4)

Artemon [7]

Answer:

The coordinates of $M$ are $x = \frac{15}{2}$ and $y = 1$ .

Step-by-step explanation:

Let be $A = (-3,-6)$ and $B = (12, 4)$ endpoints of segment AB and $M$ a point located 7/10 the way from A to B. Vectorially, we get this formula:

$\overrightarrow {AM} = \frac{7}{10}\cdot \overrightarrow {AB}$

$\vec M - \vec A = \frac{7}{10}\cdot (\vec B - \vec A)$

By Linear Algebra we get the location of $M$ :

$\vec M = \vec A + \frac{7}{10}\cdot (\vec B - \vec A)$

$\vec M = \vec A +\frac{7}{10}\cdot \vec B - \frac{7}{10}\cdot \vec A$

$\vec M = \frac{3}{10}\cdot \vec A + \frac{7}{10}\cdot \vec B$

If we know that $\vec A = (-3,-6)$ and $\vec B = (12, 4)$ , then:

$\vec M = \frac{3}{10}\cdot (-3,-6)+\frac{7}{10}\cdot (12,4)$

$\vec M = \left(-\frac{9}{10},-\frac{9}{5} \right)+\left(\frac{42}{5} ,\frac{14}{5} \right)$

$\vec M =\left(-\frac{9}{10}+\frac{42}{5} ,-\frac{9}{5}+\frac{14}{5} \right)$

$\vec M = \left(\frac{15}{2} ,1\right)$

The coordinates of $M$ are $x = \frac{15}{2}$ and $y = 1$ .

6 0

4 years ago