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allochka39001 [22]
3 years ago
5

Masha is making a scale diagram of the front face of an aquarium. The face is shaped like a rectangle. She uses a scale of 1 cen

timeter to 6 inches to draw the diagram. The actual length of the aquarium face is 5 feet, and its width is 2 feet. The perimeter of the scale drawing of the front face is_______ centimeters.
Mathematics
1 answer:
dangina [55]3 years ago
4 0
14 feet because 5+5+2+2 equals 14
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Given: m∠AOC = 120°, m∠BOD = 150°. Find: m∠BOC.
Molodets [167]

angleBOC = 270°

All 3 angles meet at O thus

angleBOC = angle AOC + angle BOD = 120° + 150° = 270°


8 0
3 years ago
PLEASE HELP!!!!
dezoksy [38]

Answer:

I beleive A is quadratic, but im not sure

Step-by-step explanation:

8 0
4 years ago
What is a possible equation for a function with an x-intercept of (-5,0) and a y-intercept of (0,3)?
Feliz [49]

Answer:

The equation of a straight line is

-3 x+5 y=15

Step-by-step explanation:

Given x - intercept of (-5,0) and y- intercept is (0,3)

here (-5,0 ) point lie on x- axis and (0,3) this point lie on y- axis

we know that the x- intercept  'a' and y- intercept 'b'  formula is

\frac{x}{a} +\frac{y}{b} = 1

so given x - intercept a =-5 and y- intercept is b= 3

now the straight line equation is \frac{x}{-5} +\frac{y}{3} =1

now simplify \frac{-3 x+5 y}{15} =1

-3 x+5 y=15

5 0
3 years ago
F the height remains fixed and the side of the base is decreasing by 0.002 meter/yr, what rate is the volume decreasing when the
katrin [286]

The original volume equation looks like this: V = 1/3 * h * (x^2) 
After the side is reduced by 0.002, the new volume would look like V1 = 1/3 * h * (x-0.002) ^ 2 

Then we have: 
V-V1 = 1/3*h*(x^2) - 1/3*h*(x – 0.002) ^2 


= 1/3 * h *(x^2 - (x – 0.002) ^2) 


= 1/3 * h * (0.004x - 0.00004) 


The rate of decreasing is computed by:


(V-V1)/V * 100% = [1/3 * h *(0.004x - 0.00004)] / [1/3 * h * (x ^ 2)] * 100% this would be equal to (0.004x - 0.00004) / (x^2) * 100% 

So replace x by 200, you’ll get:

(0.004(200) - 0.00004) / (200^2) * 100% 

= 0.001999% is the rate of decreasing.

4 0
4 years ago
What is c? 4(c - 3) = 8
Ket [755]

Answer:

4 (c - 3) = 8

4c - 12 = 8

4c = 8 + 12

4c = 20

c = 20 ÷ 4

<u>c</u><u> </u><u>=</u><u> </u><u>5</u>

Hope it helps!

7 0
3 years ago
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