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goldenfox [79]
3 years ago
14

Which of these figures have lines of symmetry? If so, how many? ​

Mathematics
1 answer:
UkoKoshka [18]3 years ago
8 0

Answer:

1, 4, 0

Step-by-step explanation:

the way you did it was just right, the arrow can only be split 1 time with equal sides. The hexagon can be split 4 times with equal sides. But the lighting strike cannot be split with equal sides symmetry.

mark brainliest if helped :D

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Suppose that when you factor 4t^6-r^10, you get (2t^x+r^y)(2t^x-r^y). determine the sum of t and r.
Alexxandr [17]

Answer:

8

Step-by-step explanation:

Given the expression

4t^6-r^10 we are to factorize in the form;

(2t^x+r^y)(2t^x-r^y)

First we need to factorize (2t^x+r^y)(2t^x-r^y)

=  (2t^x+r^y)(2t^x-r^y)\\= 4t^{2x}-2t^xr^y + 2t^xr^y - r^{2y}\\=  4t^{2x}-r^{2y}

Compare 4t^{2x}-r^{2y} \ with \ 4t^6-r^{10}

4t^{2x} = 4t^6\\t^{2x} = t^6\\equate \ the \ powers\\2x = 6\\x = 3\\

Get y;

r^{2y} = r^{10}\\2y = 10\\y = 5\\Hence \ x + y = 3+5 = 8

Hence the sum of x and y is 8

5 0
3 years ago
Write and simplify an expression that represents the perimeter of the parallelogram.
harkovskaia [24]
2(5x+7) + 2(8x-9)
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3 0
3 years ago
Select all the correct answers.
patriot [66]

Answer:

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Step-by-step explanation:

6 0
3 years ago
You invest $1,000 in an account with 6 % interest, compounded annually. Assume you do not touch the money or add money other tha
IRISSAK [1]

Answer:

A) 1790.85

Step-by-step explanation:

Hi there!

In order to solve this problem, you’ll need to use the compound interest formula x = p(1 + \frac{r}{n} )^n^t

p will be your principle, or starting amount, which is 1,000.

r will be your percentage, which is 0.06.

n will be the amount of times interest is compounded, since this question says compounded anually, your compound will be 1.

t is the time in years it is compounded, which is 10.

When the numbers are plugged in, we get x = 1,000(1 + \frac{0.06}{1})^1^0

When we solve for this, we get 1790.85.

Hope this helps! :)

5 0
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4. Last year there were 600 students
AleksAgata [21]

Answer:

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Step-by-step explanation: 600*0.08=48, 600-48=552

6 0
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