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Svetllana [295]
3 years ago
15

Please help me !!!!!

Mathematics
1 answer:
Tasya [4]3 years ago
4 0

Answer:

B. A dilation with a scale factor of 0.5

Step-by-step explanation:

A. is wrong because it is congruent transformation because reflections keep the angles and side lengths of the figure the same.

B. is right because it is NOT congruent because a dilation of any scale factor other than 1 results in a similar figure, because the side lengths are proprtional but not equivalent

C.  is wrong because translations keep the angles and side lengths of the figure the same.

D. is wrong because a scale factor of 1 changes nothing about the figure.

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PLEASE HELP 7TH GRADE MATH
ANEK [815]

Answer:

26. H

Step-by-step explanation:

26. An acute angle just has to be less than 90 degrees. Therefore, H is the correct choice.

Please mark as brainliest

8 0
3 years ago
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Find the surface area of the triangular prism (above) using its net (below).
vovangra [49]

Answer:

96 cm^2 (centimetres squared)

Step-by-step explanation:

(7 x 3) x 2 = 42

6x2 / 2 x 2 = 12

6 x 7 = 42

42 + 12 + 42 = 96 cm^2

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3 years ago
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Solve the equation after making an appropriate substitution. X^6-98x^3=3375
Leni [432]
Rearrange x^6-98x^3=3375 to give

x^6-98x^3-3375=0

Let x^3 be a variable 'p' and so we can write x^6 as x^6=(x^3)(x^3)=(p)(p)= p^2

Rewrite the equation in terms of 'p'

p^2-98p-3375 = 0

where a=1, b=-98, c=-3375

using the quadratic formula \frac{-b+ \sqrt{b^2-4ac} }{2a} and subsitute the value of a, b, c

p_1= \frac{-(-98)+ \sqrt{(-98)^2-4(1)(-3375)} }{2} =125

p_2= \frac{-(-98)- \sqrt{(-98)^2-4(1)(-3375)} }{2} =-27

There are two value of p; 125 and -27 

Now we find the value of x

Earlier we substitute x^3 for p and x^6 for p^2

When p=125, x= \sqrt[3]{125}=5
When p = -27, x= \sqrt[3]{-27}=-3

So the final answer is the two values of x; 

x = 5 OR x = -3
3 0
3 years ago
1. 1/|x-1|&gt;=0<br> 2. 1/|x-1|&lt;=0<br> 3. |x/(x-1)|&gt;0<br> 4. |x/(x-1)|&lt;0
babunello [35]
I think the answer is 4

7 0
3 years ago
Please help fasttttt​
Strike441 [17]

Answer:20%

20% is 1/5 of 75

15=1/5

15 x 5= 75

hope this helps

4 0
3 years ago
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