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Aleks [24]
1 year ago
14

Can somebody help with these two?

Mathematics
1 answer:
kotegsom [21]1 year ago
8 0

Answer:

14: 104.5 square inches

15: 706.5 square inches

Step-by-step explanation:

14: 19x11= 209

209/2= 104.5 square inches

15: formula: pi times the radius squared

15x15= 225

225x3.14= 706.5 square inches

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If ABCD is a rectangle, find the length of each diagonal. <br><br> AC=3c/9 and BD=4-c
zhuklara [117]
So we know that the diagonals of a rectangle are equal than 

3c/9 = 4 - c 

c/3 = 4-c

c = 3(4-c)

c = 12 -3c

4c = 12 

c = 12/4 

c = 3 

so in this case the length of AC = 3*3/9 = 9/9 = 1 and the length of
BD = 4 - 3 = 1 

hope this will help you 
4 0
2 years ago
Suppose that the functions u and w are defined as follows.
leonid [27]

Step-by-step explanation:

(a○b)(x) is the same as a(b(x)).

it is really that simple.

first you calculate the result of the inner function, and then that result is the input for the outer function.

that's it.

so,

(w○u)(2) = w(u(2))

u(2) = -2 -1 = -3

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so, 19 is the first answer.

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3 0
2 years ago
Please help!!
dexar [7]

Answer:C

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8 0
2 years ago
Drag each tile to the correct box.
Gwar [14]

Step-by-step explanation:

6x - 15 = 75, 6x = 90, x = 15.

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3 0
3 years ago
Use the table to write and solve an equation to find the number of
exis [7]

Answer:

c = 11

Step-by-step explanation:

Given

Cars\ Sold:-: 8; 9; 12; c

Required

What value of c makes the mean = 10

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Mean = \frac{\sum x}{n}

In this case;

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Solve for c

c = 40 - 29

c = 11

4 0
3 years ago
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