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Wewaii [24]
3 years ago
12

PLEASE HELP ASAP SCHOOLS ALMOST OVER AND I NEED THIS

Mathematics
1 answer:
klio [65]3 years ago
4 0

Answer:

I think its B

Step-by-step explanation:

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Please help me if you can. please show how you got the answer.
fomenos

Answer:

Step-by-step explanation:

The area of a circle is A = πr², where r is the radius. That means in order to solve this we have to find the value of x, which is the diameter of the lake, and then divide it in half to get the radius. To find x we will use similar triangles and proportions. x is the height of the big triangle and 4.5 is the height of the smaller triangle; 15.3 + 7.4 is the hypotenuse of the big triangle and 7.4 is the hypotenuse of the smaller triangle. Setting up our proportion:

\frac{x}{4.5}=\frac{15.3+7.4}{7.4} which simplifies a bit to

\frac{x}{4.5}=\frac{22.7}{7.4} and cross multiply to solve for x:

7.4x = 102.15 so

x = 13.8  That is the diameter of the lake. Divide it in half to get 6.9, the radius. Applying the area formula for a circle:

A = (3.14)(6.9)² and

A = 3.14(47.61) so

A = 149.5 which rounds to 150, Choice C

5 0
3 years ago
Hw help ASAPPP<br> +10PTS
stich3 [128]

Answer:

y=mx+b

mx= 5 up, 1 to the right

b= where you start which is at 1

8 0
3 years ago
The Big Men retailer reduced the price of its $350.00 sport coats by 30%. Calculate the new price?
egoroff_w [7]
New price would be $245.
5 0
3 years ago
Read 2 more answers
What are the zeros of the parabola whose equation is y = x2 + 8x + 15
Sedbober [7]

9514 1404 393

Answer:

  (1)  -5 and -3

Step-by-step explanation:

Descarte's rule of signs tells you the lack of sign changes among the coefficients means there are <em>no positive real roots</em>. That eliminates all answer choices except the first one.

__

If you want to go to the trouble, you can factor the equation:

  y = (x +3)(x +5)

These factors are zero when x = -5 and x = -3.

6 0
3 years ago
1, 6, 13, 22, 33, 46, 61 what comes next???????
laiz [17]

Answer:

76

its going by 15's so you add 15

4 0
3 years ago
Read 2 more answers
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