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elena-s [515]
3 years ago
12

Please need help fast ​

Mathematics
1 answer:
natita [175]3 years ago
6 0

Answer:

6/10

Step-by-step explanation:

The answer is A

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Whats this answer ?
Elanso [62]

Answer:

c = 36

Step-by-step explanation:

x^2 + 12x

Take the coefficient of x

12

divide by 2

12/2 =6

square it

6^2 = 36

Add this

c=36

6 0
3 years ago
Read 2 more answers
PLS HELP WILL MARK BRAINLIEST!
Allisa [31]

Answer:

-41

Step-by-step explanation:

if you plug -2 everywhere you see an x and 1 everywhere you see a y, and then simplify you get -41

4 0
2 years ago
Read 2 more answers
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y2
HACTEHA [7]

This question is incomplete, the complete question is;

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y2 = 2x, x = 2y; about the y-axis

Answer:

V = π (512/15)

Step-by-step explanation:

Given that;

region of rotation

y² = 2x, x = 2y

Region is rotated about y-axis as shown in the image

for the point of intersection,

y²/2 = 2y

y² - 4y = 0

y(y-4) = 0

∴ y = 0, y = 4

so the region lies in 0 ≤ y ≤ 4

Now cross section area of washer is

A(y) = π(outer radius)² = π(inner radius)²

A(y) = π(2y)² - π(y²/2)²

A(y) = π(4y²) - π(y⁴/4)

A(y) = π(4y² - (y⁴/4))

now volume of the solid of revolution is

V = ⁴∫₀ A(y) dy

V = ⁴∫₀ π(4y² - (y⁴/4))dy

V =  π {4⁴∫₀ y² - 1/4⁴∫₀y⁴ dy }

V = π { 4/3 [y³]₀⁴ - 1/20 [y⁵]₀⁴ }

V = π { 4/3 [4]₀⁴ - 1/20 [4]₀⁴ }

V = π { 4/3 [64]₀⁴ - 1/20 [1024]₀⁴ }

V = π { 256/3 - 1024/20 }

V = π { (5120 - 3072) / 60 }

V = π (512/15)

8 0
3 years ago
Anyone i need help asap im literally crying
adell [148]

Answer:

1. 21

2. 896

3. 20.9

Step-by-step explanation:

Use BODMAS/BIDMAS to solve.

4 0
2 years ago
What is the predecessor of 2,777
ryzh [129]

Answer:

2,776

Step-by-step explanation:

the name <u>pre</u>decessor means <u>before</u> hence  the number just before 2777.

5 0
3 years ago
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