PLZ HELP ME WITH THIS 1 QUESTION!?!

What is the radius and diameter of the following circle?

ycow [4]

the diameter is the number given, 7 and the radius is half of the diameter so radius=3.5

8 0

3 years ago

CAN SOMEONE HELP ME WITH THIS????????????????

Lerok [7]

$\text{Hello there!}\\\\\text{We're trying to find the area of the shape}\\\text{We can do this by finding the area for the different shapes, then adding}\\\text{them together}\\\\\text{We can find the area of the rectangle,} \,\,84\cdot66=5,544\\\\\text{To find the area of the half circle, we would use the equation:}\,\,A=\frac{3.14r^2}{2}\\\\\text{The radius is half of the diameter, therefore it is 33. Plug 33 in r}\\\\A=\frac{3.14(33)^2}{2}\\\\\text{Solve:}\\\\A=\frac{3.14(33)^2}{2}\\$

$A=\frac{3.14(1089)}{2}\\\\A=\frac{3419.46}{2}\\\\\text{Divide by 2}\\\\A=1709.73\\\\\text{Since there's two half circles, we would add 1709.73 twice}\\\\\text{Add all the areas together}\\\\1709.73+1709.73+5,544=8963.46\\\\\large\boxed{\text{Area:}\,\,8963.46\,\,\text{m}^2}}$

4 0

3 years ago

Please explain how to do this!!!

mariarad [96]

Answer:

17) x = 58.1 units

18) x = 17 units

Step-by-step explanation:

The concept of similar triangles will be applied.

It is evident that the AAA congruence property is responsible for the similarity of the two triangles in the 2 cases. The theorem is

- Triangles are similar if the measure of all three interior angles in one triangle are the same as the corresponding angles in the other.

So, the corresponding sides from the two triangles can be written as a ratio of one another

17)

The most obvious tell here is the largest angle in the two triangles, the sides directly opposite this angle in the two triangles can be written in a ratio such that

(95.2/13.6) = 7

indicating that the bigger triangle is exactly 7 times the smaller one.

So,

(95.2/13.6) = (53.2/7.6) = (x/8.3) = 7

x = 7 × 8.3 = 58.1

18)

The obvious tell here is the smallest common angle for the two triangles, the two other corresponding sides can then be written in a ratio, matching the bigger side in the two triangles to each other.

(39.5/7.9) = (37.5/7.5) = (x/3.4)

(x/3.4) = 5 (Indicating thay the bigger triangle is 5 times bigger than the smaller one.

x = 3.4 × 5 = 17 units.

Hope this Helps!!!

3 0

3 years ago

Consider the curve y=x2+3x+5. (a) Find the slope of the secant line to the curve through the points P=(4,33) and Q=(4+h,(4+h)2+3

lawyer [7]

Answer:

a) The slope of the secant line is 11 + h

b) The slope of the curve at P is 11

c) The equation of the tangent line at P is y = 11x - 11

Step-by-step explanation:

y=x²+3x+5

(a) Find the slope of the secant line to the curve through the points P=(4,33) and Q=(4+h,(4+h)²+3(4+h)+5)

(4+h)²+3(4+h)+5 = 16 + 8h + h² + 12 + 3h + 5 = 33 + 11h + h²

slope (m) = yq - yp/xq - xp → m = 33 + 11h + h² - 33/4 + h - 4

m = 11h + h²/h = h(11+h)/h = 11 + h

The slope of the secant line is 11 + h

(b) Use your answer from part (a) to find the slope of the curve at the point P.

As P (4,33) = (4+0, 33+0) at P h is 0, so the slope at P is 11 + 0 = 11

The slope of the curve at P is 11

(c) Write an equation of the tangent line to the curve at P.

y - yp = m(x - xp) → y - 33 = 11(x - 4) → y - 33 = 11x - 44 → y = 11x - 11

The equation of the tangent line at P is y = 11x - 11

3 0

3 years ago

You are selling cookies for your organization. One box of cookies is sold for $3. Thirty percent of the sale price goes to the b

choli [55]

A) Your organization gets half of the revenue after 30% is deducted. You get ...
(1/2)×($3 - 0.30×$3) = (1/2)×$3×0.70 = $1.05 for each box of cookies

B) If the number you must sell to earn $100 is represented by n, then you have
$1.05×n = $100
n = 100/1.05 ≈ 95.24
To earn $100 for your local chapter, you must sell 96 boxes of cookies.

7 0

3 years ago