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3 years ago

Which sequences of transformations applied to shape I prove that shape I is similar to shape II?

Mathematics

2 answers:

kvasek [131]3 years ago

4 0

Answer:a

Step-by-step explanation:

A reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .

snow_lady [41]3 years ago

3 0

A reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .

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Roxanne has 1/2 as many beads as Sherrie. The number of beads Sherrie has is 4/5 that of Ting Ting's. Ting Ting has 165 beads. H

gregori [183]

165 Ting Ting's beads* (4 Sherrie's beads/ 5 Ting Ting's beads)= 132 Sherrie's beads.
132 Sherrie's beads* (1 Roxanne's bead/ 2 Sherrie's beads)= 66 Roxanne's beads.
Now that we know the number of beads Roxanne and Ting Ting have, let's subtract:
165 beads- 66 beads= 99 beads.
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3 years ago

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Suppose the lengths of two sides of a right triangle are represented by 2x and 3 (x + 1), and the longest side is 17 units. Find

densk [106]

Answer:

x=4

Step-by-step explanation:

Step 1:-

given the lengths of two sides of a right angle are represented by 2x and 3(x+1) and longest side is 17 units.

AB = 2x and BC = 3(x+1) and longest side AC= 17

by using Pythagoras theorem

$AC^2 = AB^2 + BC^2$

step 2:-

The hypotenuse is longest side is AC = 17 units

(17)^2 = 4x^2 +9(X+1)^2

on simplification, we will use formula

$(a + b)^2 = a^2 +2ab+b^2$

289 = 4x^2 +9(x^2+2x+1)

$13x^2 +18x-280 = 0$

finding factors 70 X 52 = 3640

$13x^2 +70x-52x-280 = 0$

$13x^2 -52x+ 70x-280 = 0$

Taking common , we get

13x(x-4)+70(x-4)=0

x-4=0 and 13x+70=0

x=4 and $13x =-70$

x=4 and $x=\frac{-70}{13}$

we can not choose negative value so x value is 4

Final answer:- x = 4

verification:-

$AC^2 = AB^2 + BC^2$

289 = 4(4)^2+9(4+1)^2

289 = 64 +9(25)

289=289

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4 years ago

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MrRissso [65]

Answer:

Step-by-step explanation:

It looks to me possibly C

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JulsSmile [24]

Answer:

Step-by-step explanation:

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Please help asap, and if you can explain why after the answer, please and thank you❤️

weqwewe [10]

DF=14. Because DE is half the line and EF is the other half the line you add up both the lengths to get the length of whole line.
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