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My name is Ann [436]
3 years ago
12

Which is the best buy?

Mathematics
2 answers:
elena-s [515]3 years ago
8 0

Answer:

a=$1.75 per candy bar

b=$1.74 per candy bar

c=$1.71 per candy bar

d=$1.73 per candy bar

Option C is the better buy.

Hope this helps!

Romashka-Z-Leto [24]3 years ago
7 0
The correct answer is c
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Radius of the circle is 20cm. there are two chords of lengths.
Vaselesa [24]

9514 1404 393

Answer:

  12 cm

Step-by-step explanation:

The distance to the chord is the median of an isosceles right triangle with hypotenuse 20 and leg 16. This 5:4 ratio suggests the other leg of that right triangle would make the ratios 3 : 4 : 5, so is 12.

The chords are 12 cm from the center.

_____

You can, of course, use the Pythagorean theorem. If c is half the chord length and d is the distance to the chord, you have ...

  c² + d² = r²

  16² + d² = 20²

  d² = 400 -256 = 144

  d = √144 = 12 . . . . . cm

4 0
3 years ago
Find the value of x. Round your answer to the nearest tenth.
BlackZzzverrR [31]

Answer:

10.39 or 10.4

Step-by-step explanation:

Since this is a right triangle, you have the formula a squared +b squared = c squared where a and b are the legs and c is the hypotenuse. You plug in the values and you should get sqrt of 108 for x.

8 0
3 years ago
Rewrite the fraction 1/4<br><br> as a division expression with the same numbers.
s344n2d4d5 [400]

Answer:

4 divided by 1.

Step-by-step explanation:

im pretty sure thats right but correct me if im wrong please, and have a great day <3

4 0
3 years ago
3. Complete the square for 3x2 - 6x = 21.<br> Help
PSYCHO15rus [73]

Answer:

x=1+2√2 or x=1−2√2

Step-by-step explanation:

Let's solve your equation step-by-step.

3x2−6x=21

Step 1: Since the coefficient of 3x^2 is 3, divide both sides by 3.

3x2−6x

3

=

21

3

x2−2x=7

Step 2: The coefficient of -2x is -2. Let b=-2.  

Then we need to add (b/2)^2=1 to both sides to complete the square.

Add 1 to both sides.

x2−2x+1=7+1

x2−2x+1=8

Step 3: Factor left side.

(x−1)2=8

Step 4: Take square root.

x−1=±√8

Step 5: Add 1 to both sides.

x−1+1=1±√8

x=1±√8

x=1+2√2 or x=1−2√2

7 0
3 years ago
Find the perimeter of the square 4x+3in 3(2x-5)in
Vikki [24]
4x+ 3 = 3(2x-5) ;x=2;  x^{2} = 4
3 0
3 years ago
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