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3 years ago

How do i reflect shapes onto themselves ?

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

8 0

Reflect one time on either axis and then reflect again

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I am a fraction whose Numerator and denominator are both prime numbers less than 20. If you were to increase each term by 1‚ I w

11Alexandr11 [23.1K]

Answer:

$\frac{2}{5}$ .

Step-by-step explanation:

Let the unknown fraction be $\frac{x}{y}$ ,

where, x and y both are prime numbers less than 20.

Now, it is given that adding 1 to both numerator and denominator will make the fraction $\frac{1}{2}$ .

Thus,

$\frac{x+1}{y+1}$ = $\frac{1}{2}$

2(x + 1) = y + 1

2x + 2 = y + 1

2x + 1 = y.

Clearly if x will be any odd number , two times x will be odd and adding 1 to it will result in even number and y should be even number , which is not possible as only even prime is 2.

Thus , x should be the even prime which is 2.

And y will be 5.

Thus the required fraction is $\frac{2}{5}$ .

6 0

3 years ago

*quickest correct answer gets brainlyest*

gavmur [86]

Answer:

16600

Step-by-step explanation:

Love doing these standards forms.

4 0

3 years ago

At noon, you are running to get to class and notice a friend 100 feet west of you, also running to class. If you are running sou

Virty [35]

Answer:

Step-by-step explanation:

Velocity of first Person $v_1=450 ft/min$

Velocity of second Person $v_2=350 ft/min$

Distance between them P=100 ft

Let x be the distance moved by 1 st and y be the distance moved by second person by the time 12:02 PM

In Triangle ABC

$BC=350 t+450 t$

$BC=800 t$

using Pythagoras

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

$AC^2=100^2+(800t)^2$

differentiating with respect to time

$2\times AC\times \frac{\mathrm{d} AC}{\mathrm{d} t}=2\times (800t)\times 800$

$\frac{\mathrm{d} AC}{\mathrm{d} t}=\frac{800^2\times t}{AC}$

AC after 2 minute

$AC=1603.121 ft$

$\frac{\mathrm{d} AC}{\mathrm{d} t}=\frac{800^2\times 2}{1603.121}$

$\frac{\mathrm{d} AC}{\mathrm{d} t}=\frac{64\times 10^4\times 2}{1603.121}$

$\frac{\mathrm{d} AC}{\mathrm{d} t}=798.44 ft/min$

4 0

3 years ago

Use Pythagorean theorem to find right triangle side lengths 8 and 10

sp2606 [1]

Answer:

Step-by-step explanation:

$a^{2}+b^{2} =c^{2} \\\\8^{2}+b^{2} =10^{2} \\64+b^{2}=100\\b^{2}=36\\\sqrt{36} =6\\b=6$

4 0

3 years ago

At her birthday party, Ms. Willow would not give her age directly. She said, 'If you add the year of my birth to this year, s

Nimfa-mama [501]

Answer:

69 years

Step-by-step explanation:

Given that:

Let year of birth = x

This year = 2020

Year of 25th birthday = x + 25

Year of 55th birthday = x + 55

Present age = 2020 - x

Hence,

x + 2020 - (x + 25 + x + 55) + (2020 - x) = 58

x + 2020 - (2x + 80) + (2020 - x) = 58

x + 2020 - 2x - 80 + 2020 - x = 58

-2x + 4040 - 80 = 58

-2x + 3960 = 58

-2x = 58 - 3960

-2x = - 3902

x = 1951

Birth year = 1951

Hence, age =

2020 - 1951 = 69 years

5 0

3 years ago