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Alexus [3.1K]
2 years ago
5

PLS answer the question below. I will mark brainliest!!

Mathematics
2 answers:
quester [9]2 years ago
5 0

Answer:

6

Step-by-step explanation:

sesenic [268]2 years ago
3 0

Answer:

5 triangles maybe?

Step-by-step explanation:

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Find an equation of the circle that has center (-4,3) and passes through (6,-4).
kumpel [21]

Answer:

(x+4)^2+(y-3)^2=149

Step-by-step explanation:

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

Given that (h,k)\rightarrow(-4,3) and it passes (6,-4), their distance between each other must the radius of the circle, so we can use the distance formula to find the radius:

d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}\\\\d=\sqrt{(-4-3)^2+(6-(-4))^2}\\\\d=\sqrt{(-7)^2+10^2}\\\\d=\sqrt{49+100}\\\\d=\sqrt{149}

Therefore, if the length of the radius is r=\sqrt{149} units, then r^2=149, making the final equation of the circle (x+4)^2+(y-3)^2=149

5 0
3 years ago
Amanda is having new tile installed in her kitchen. TileAll charges a flat fee of $378.00 plus $15.00 per tile. Kitchen Plus cha
myrzilka [38]

Answer:

C = 495 + 13.05x

60 tiles.

Step-by-step explanation:

$15.00 per tile plus a flat fee of $378.00 that charges Tile All.

Therefore, for x number of tiles, the total cost of installation will be  

C = 378 + 15x ........... (1)

Again, $14.50 per tiles plus a flat fee of $550.00 that charges Kitchen Plus. Amanda has at Kitchen Plus, a 10% discount coupon.

Therefore, for x tiles installation the charges will be  

C = (550 + 14.5x)(1 - \frac{10}{100}) = 495 + 13.05x .......... (2) (Answer)

Now, if for x number of tiles both the company charges the same, then  

378 + 15x = 495 + 13.05x (From equations (1) and (2)}

⇒ 1.95x = 117

⇒ x = 60 tiles. (Answer)

3 0
3 years ago
Student council hosted a bake sale of the 40 items brought to sale 18 were brownies. what percent of the bake sale were Brownies
LuckyWell [14K]

Answer:

45 percent were brownies :)

7 0
4 years ago
Vertex of parabola (x-7)^2+5
UNO [17]

Answer:

(7,5)

Step-by-step explanation:

You can use the desmos website for math problems like this.

4 0
3 years ago
Read 2 more answers
A semicircle is attached to the side of a rectangle as shown.
katrin [286]
I think the answer is 43.8.
8 0
3 years ago
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