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Klio2033 [76]
3 years ago
13

A circle is centered at the point (-3, 2) and passes through the point (1, 5). The radius of the circle is how many units. The p

oint (-7,? ) lies on this circle.

Mathematics
2 answers:
Tanzania [10]3 years ago
5 0

Answer:

radius 5. (-7,-1) is on the circle

%100 correct on PLATO


Step-by-step explanation:


WINSTONCH [101]3 years ago
3 0
We know that

the equation of a circle is
(x-h)²+(y-k)²=r²
(h,k) is the center----------> (-3,2)

the radius is the distance point (-3,2) and point <span>(1, 5)
d=</span>√(5-2)²+(1+3)²-------> d=√9+16----------> d=5

radius=5 units

equation is
(x+3)²+(y-2)²=25

for x=-7
(-7+3)²+(y-2)²=25-------> 16+y²-4y+4=25
y²-4y-5=0

using a graph tool -------> to resolve the second order equation

see the attached figure

the solution is 
y1=-1
y2=5

the point will be
(-7,-1)
(-7,5)

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zzz [600]

Answer:

201.06 square inches.

Step-by-step explanation:

The equation to use to find the Area of a circle is given as

πr²

Where r = radius of the circle

In the question, we are given the radius of the circle = 8 inches

Area of the circle = π × 8²

= 201.06 square inches.

4 0
3 years ago
From Denver yo Chicago =3in if the scale is 1in=300miles
Amiraneli [1.4K]
Basically a proportion so it’d be 1in/300 mi = 3in/x mi
cross multiple that out and you get 300•3=x and then just solve for x. the answer should be 900 miles.
5 0
3 years ago
Giving brainliest please help
Bogdan [553]

Answer:

Question 1:

1: 2 xs

1  1/4: 5 xs

1  1/2: 1 xs

1  3/4: 1 xs

2: 2xs

Question 2:

6  1/4 pounds

I hope I helped!

3 0
3 years ago
Need help on all plz
olga55 [171]
3.
a. 380 ÷ 38 = 10 
b. 190 ÷ 38 = 5
c. 570 ÷ 38 = 15
d. use 10 times 38 = 380, 190 is half of 380 so half of 10 is 5, 570 is 380 + 190 so 10 + 5

4.
a. 670 ÷ 67 = 10
b. 603 ÷ 67 = 9
c. 737 ÷ 67 = 11
d. use 10 times 67 = 670, 603 is 670 - 67 so 10 - 1 = 9, 737 is 670 + 67 so 10 + 1 = 11

Challenge:
1062 - 279 = 783
\frac{1}{3} (783)=261
783 - 261 = 522
522 ÷ 15 = 34 remainder 12
So she put 34 books in each box
7 0
3 years ago
In a triangle ABC, if angle B= 60° and the ratio of two sides is a: C= 2: sqrt3 + 1, then angle A=
yawa3891 [41]

Answer:

<em>Well, Your best answer will be is </em><em>45° </em><em>Because, Given two sides and the angle in between,  we can calculate for ∠A using the sine law: </em>

<em> </em>

<em>b / sin B = a / sin A </em>

<em> </em>

<em>2.45 / sin 60 = 2 / sin A </em>

<em> </em>

<em>sin A = 0.707 </em>

<em> </em>

<em>A = 45˚ </em>

<em> </em>

<em>Therefore the answer is letter A: 45 </em><em>Good Luck! </em>

3 0
3 years ago
Read 2 more answers
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