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3 years ago

PLEASE HELPPPP 20 points

Mathematics

1 answer:

Nataliya [291]3 years ago

5 0

The equation of a circle is:

(x-h)^2+(y-k)^2=r^2, where (h,k) is the center and r is the radius...

Here the center is at (1,1) and it has a radius of 2 units so:

(x-1)^2+(y-1)^2=4

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A party rental company has chairs and tables for rent. The total cost to rent 7 chairs and 9 tables is $91. The total cost to re

jonny [76]

Answer:

Step-by-step explanation:

3 0

3 years ago

Find the value of t in the diagram

12345 [234]

In a trapezoid, with bases $b$ and $B$ and height $h$ , the area is given by

$A = \frac{(B+b)h}{2}$

In your case:

$B = BC = 3t$

$b = AD = t$

$h = AB = t$

so, the formula becomes

$A = \frac{(3t+t)t}{2} = \frac{4t^2}{2} = 2t^2$

Since the area is $50 \text{cm}^2$ , we have

$2t^2 = 50 \iff t^2 = 25 \iff t = 5$

5 0

3 years ago

Read 2 more answers

What is the measure of m?

Elan Coil [88]

m=6

this is because m=n=6 since the triangle is an equilateral triangle

hope it helps:)))

6 0

2 years ago

Read 2 more answers

Find the distance between -2 and 2+2i

Mars2501 [29]

$z=a+bi\\\\|z|=\sqrt{a^2+b^2}\\\\z_1=-2,\ z_2=2+2i\\\\\text{the distance between}\ z_1\ \text{and}\ z_2:\\\\|z_2-z_1|=|-2+2i-2|=|-4+2i|=\sqrt{(-4)^2+2^2}\\\\=\sqrt{16+4}=\sqrt{20}=\sqrt{4\cdot5}=\sqrt4\cdot\sqrt5=\boxed{2\sqrt5}$

4 0

2 years ago

Researchers conducted a study to determine whether there were significant differences in graduation rates between medical studen

yuradex [85]

Use binomial distribution to find the answer.
P(9) = 0.3643
P (10) = 0.4840
sum of both is 0.483
edit, sum of both is 0.8483... i miss out the 8 the first time. typed too fast.

3 0

3 years ago