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ANTONII [103]
2 years ago
13

I will be forever in your debt, ( and a brainiest) if you help me

Mathematics
1 answer:
gogolik [260]2 years ago
3 0

Answer:

Step-by-step explanation:

12P3 = 12! / (12-3)!

= 12*11*10

= 1320.

8C7 = 8!/7! *(8-7)!

= 8.

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PLEASE HELP I really need help with it:/
Luda [366]

Answer:

  • q = 14

Step-by-step explanation:

<u>We know that:</u>

  • 39 + (4q - 5) = 90°

<u>Solution:</u>

  • 34 + 4q = 90°
  • => 4q = 90 - 34
  • => 4q = 56
  • => q = 56/4
  • => q = 14

Hence, the value of q is 14.

7 0
2 years ago
Read 2 more answers
The regular price of an item at a store is dollars. The item is on sale for off the regular price. Some of the expressions shown
Anettt [7]
You will substrate the percentage of the sale price with the regular price
5 0
3 years ago
The are of the shape is __ square centimeter
tensa zangetsu [6.8K]

Answer:

35 cm

Step-by-step explanation:

To find the area of the bottom portion, you would use the formula for finding out a triangle (B*H*1/2) which is:

(4+4)*5.75*1/2=<u>23</u>

Then, for the top portion, one would find the area of the triangles on the sides (with two marks going through). Since along the middle is 8cm, and along the top is 4, we can see that there is 2cm on either side, so that is the length of the base of the triangle. To solve for the top triangles, you would do almost the same thing as the last one:

2*2*1/2=2

But since there's two identical triangles on either side, we can multiply that by two, which would bring it to <u>4.</u>

That just leaves the rectangle that is left between the two triangles. To solve this, it's just B*H and luckily both of those are labeled for you already:

4*2=<u>8</u>  

Now, to find the total area, all you have to do is add up the areas of the different sections:

23+4+8=35 cm

Hope this helps!

4 0
3 years ago
A cone is formed from a 300-degree sector of a circle of radius 18 by aligning the two straight sides. what is the result when t
vampirchik [111]

The radius of the completed cone is

... 18×(300°/360°) = 15

The height of the completed cone is found from the Pythagorean theorem:

... 15² + h² = 18²

... h = √99 = 3√11

The volume is given by

... V = (1/3)πr²·h = (1/3)π·15²·3√11

Dividing this value by π gives 225√11 cubic units.

7 0
3 years ago
Paula has a dog that weights 3 times as much as Carla's dog. The total weight of the dogs is 48 pound. How much does Paula's dog
tiny-mole [99]
Paula's dog is 36 lbs

Use the equation 48=3x+x

Add like terms: 48=4x

Divide: 12=x (x=Carla's dog's weight)

Then Multiply x by 3 to get Paula's dog's weight and you get 36 lbs
5 0
3 years ago
Read 2 more answers
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