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FromTheMoon [43]
3 years ago
9

How is this correct?

Mathematics
1 answer:
ale4655 [162]3 years ago
5 0
The answer is B. [x] 2x^2 (21 _ 2pi)
proof
2x^2 (21 _ 2pi)= 42x^2   -   4pix^2=  <span>rectangular area- circular area</span>
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Mrs Belen wanted to bake 10 loaves of bread but realized she needed 1.75 more of flour. If she baked 7 loaves of bread she would
Pani-rosa [81]
To answer this question, follow this step by step procedure:1. Add first the needed and the excess flour to determine to total flour, = (1.75 kg + 0.5 kg = 2.25)2. Then divide the answer by 3 since you need to have 3 more breads, 2.25 kg / 3 = 0.75 kg
So we can say that we need 0.75 kilogram of flour for each loaf of bread.
3 0
3 years ago
Jo bought a used car for $6000 and paid a 15% deposit. How much did he still have to pay?
astraxan [27]

Answer:

900 is the correct awnser

6 0
3 years ago
Peter walked 10m from X to Y on bearing 020° and then he turned and walked 20m to Z with bearing 140° of Z from Y. Find the dist
seraphim [82]

Answer:

17.32m ; 110°

Step-by-step explanation:

Distance between X and Z

To calculate the distance between X and Z

y^2 = x^2 + z^2 - (2xz)*cosY

x = 20, Z = 10

y^2 = 20^2 + 10^2 - (2*20*10)* cos60°

y^2 = 400 + 100 - (400)* 0.5

y^2 = 500 - 200

y^2 = 300

y = sqrt(300)

y = 17.32m

Bearing of Z from X:

Using cosine rule :

Cos X = (y^2 + z^2 - x^2) / 2yz

Cos X = (300 + 100 - 400) / (2 * 20 '*10)

Cos X = 0 / 400

Cos X = 0

X = cos^-1 (0)

X = 90°

Bearing of Z from X

= 20° + X

= 20° + 90°

= 110°

3 0
3 years ago
PLEASE HELP MEEEE!!!!
Vlad [161]

Answer:

  A.  P(n) = 12·2^n

Step-by-step explanation:

From one generation to the next, the population grows by a factor of ...

  24/12 = 2

Only one offered expression is an exponential function with a base of 2:

  P(n) = 12·2^n

7 0
2 years ago
Which expression is equivalent to 2x^2 - 2x + 7?
IgorC [24]

Answer:

(o,7) vertical intercept

minimum (1/2 , 13/2)

4 0
3 years ago
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