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2 years ago

SOMEONE HELP ME WITH MY RECENT 3 QUESTIONS PLZ :)

Mathematics

1 answer:

earnstyle [38]2 years ago

7 0

Answer:

Hello! if you have any more questions that I know I will answer!

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What point can be used to create a right triangle

avanturin [10]

Answer:

(-3,3)

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

HELP PLEASE

Gnesinka [82]

Answer: $x^2=8y$

Step-by-step explanation:

Let the given parabolic mirror opens upwards and vertex=(0,0)

Focus point of the parabolic mirror is located 2 inches from the vertex of the mirror. ∴ p=2

Since, the parabola opens upward, then the equation of the parabola is of the form $x^2=4py$

Substitute the value of p=2 in this, we get the equation of the parabolic mirror

$x^2=4(2)y\\\Rightarrow\ x^2=8y$

Hence, the equation of the parabola that models the cross section of the mirror is $x^2=8y$

7 0

2 years ago

Read 2 more answers

Using the formula c=2r, find the circumference with diameter of 28inches. Round your answer to the nearest inch.

Furkat [3]

Radius is equal to 1/2 the diameter. The radius is 14 (28/2=14)

With your formula:

c=2*14

c=28

HOWEVER I believe you meant

c=2(pi)r

In which

c=2(pi)14

c=28(pi)

In this instance for pi we can use 3.14 since we will be rounding anyway, so

c=28*3.14

c=87.92

Rounded to be

c=88

Note:

If we didn’t round pi out to 3.14 we would have gotten 87.964594...

5 0

2 years ago

What is the solution for x in the equation?<br> 9x - 20 - 4x = 40

yan [13]

Answer:

Step-by-step explanation:

X=12

4 0

2 years ago

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3 2/9 + 1 1/3 write in simplest form

Ratling [72]

Answer: 41/9 or 4 5/9

Step-by-step explanation:

3 2/9 = 29/9

1 1/3 = 4/3

4(3)/3(3) + 29/9

12/9+29/9 = 41/9

41/9 can be also written as 4 5/9

7 0

2 years ago