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valina [46]
3 years ago
12

Cho hình chóp S.ABC có đáy abc là hình vuông tại A. Có ab = a, ac = a^3 . Mặt bên SAB là tam giác đều nằm trong măth phẳng vuông

góc với ABC . Tính theo a thể tích khối chóp
Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
3 0

Answer:

wergi;bwfvhisbohouwdfkwv

Step-by-step explanation:

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Write the absolute value equations in the form x−b=c (where b is a number and c can be either number or an expression) that have
umka21 [38]

Answer:

|x + 6| = 2

Step-by-step explanation:

|x - b| = c

b is the centre: (-4-8)/2 = -6

b = -6

c is the distance from the centre

-6 - (-8) = -6 + 8 = 2

Or,

-4 - (-6) = -4 + 6 = 2

| x - (-6)| = 2

|x + 6| = 2

7 0
3 years ago
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Solve the system of equations.<br> y= 3x +5<br> y= 8x +3
Lady bird [3.3K]

Answer:

y=6.2 and x=0.4 or (0.4,6.2)

Step-by-step explanation:

Since both expressions are equal to y, we can set them equal to each other and solve for x:

3x+5=8x+3

5=5x+3

2=5x

2/5=x

0.4=x

Now to solve y:

y=8(2/5)+3

y=16/5+3

y=3.2+3

y=6.2

Check answers:

6.2=3(0.4)+5

6.2=1.2+5

6.2=6.2

6.2=8(0.4)+3

6.2=3.2+3

6.2=6.2

Answers work, so y=6.2 and x=0.4 or (0.4,6.2) as an ordered pair

5 0
3 years ago
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The local newspaper tells you that ad space costs 40 per column-inch. A "column-inchis space one column wide nch high. You want
mash [69]

Answer:

it should be 600

Step-by-step explanation:

40x3=120x5=600

3 0
3 years ago
I need help with #2 please I don’t understand
kipiarov [429]
1. Square 
2. Circle
3. Triangle (inside of a square) 
4. Pentagon
5. Rectangle

Hope this helps :)
6 0
3 years ago
Read 2 more answers
What is 232and1/4-129and7/8?
Elanso [62]
232 \frac{1}{4} - 129 \frac{7}{8} 
The answer is: 102  \frac{3}{8}
5 0
3 years ago
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