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3 years ago

Write the standard equation

Mathematics

1 answer:

Neporo4naja [7]3 years ago

8 0

Answer:

$Center=(-2,-1)$

$r^2=5^2=25$

$So,(x+2)^2+(y+1)^2=25$

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hope it helps...

have a great day!!

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Calculate the length of the circumference of a circle with diameter of 7cm? ~3

DaniilM [7]

The calculation for circumference is 2πr or 2 × π (pi=3.14) × radius of a circle

Since the diameter of this circle is 7cm, and the radius is half of the diameter, 7 ÷ 2 = 3.5

So, 2×3.14(π)×3.5=21.98

6 0

3 years ago

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Kai has 32 tickets. He wants to put the same number of tickets into 4 boxes.

erastovalidia [21]

Answer:

32 tickets divided by 4 boxes.

Step-by-step explanation:

He wants to divide the 32 tickets between the 4 boxes. So it would be 32 divided by 4. Hope this helps and have a great day!

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3 years ago

Find the perimeter of the triangle.

Rudiy27

Answer:

12 + 10 + 15,62= 37,62

Step-by-step explanation:

According to the Pythagorean Theorem, you will have this:

${a}^{2} + {b}^{2} = {c}^{2} \\ \\ {10}^{2} + {12}^{2} = {c}^{2} \\ \\ 244 = {c}^{2} \\ \\ 2\sqrt{61} = c \\ \\ 15,62049935 ≈ c \\ \\ 15,62 ≈ c \\ \\ 12 + 10 + 15,62 = 37,62$

* There was an error in the correct answer, so I corrected it, as you can see.

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3 years ago

What is the Slope in the equation y= -2x +5

cricket20 [7]

Answer:

-2

Step-by-step explanation:

y=-2x+5

y=mx+b where m=slope and b=y-intercept

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3 years ago

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The measure on angle 0 is 7pie/4. Measure of its reference angle is __ °, and the tan 0 is ___

soldier1979 [14.2K]

Answer:

Reference angle is $\frac{\pi }{4}$ and tan $\frac{7\pi }{4}$ = -1

Step-by-step explanation:

$\frac{7\pi }{4}$ lies in the 4th quadrant

and reference angle for angle in 4th quadrant is 2π - x , where x is the angle given.

and reference angle for $\frac{7\pi }{4}$ is

2π- $\frac{7\pi }{4}$ = $\frac{\pi }{4}$

and tan $\frac{7\pi }{4}$ = -tan $\frac{\pi }{4}$ = -1

Since tan is negative in 4th quadrant ,therefore value will be negative for the given angle.

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3 years ago