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lukranit [14]
3 years ago
15

BIG POINTS UP FOR GRABS!!!

Mathematics
1 answer:
kvv77 [185]3 years ago
6 0

Answer:

40/3; 13.3333333333333

Step-by-step explanation:

The volume of the cone is:

(1/3)(pi)(r^2)(h) =

(1/3)(pi)(10^2)(10) =

1000pi/3

The volume of the cylinder is:

(pi)(r^2)(h) =

(pi)(5^2)(h) =

25pi(h) = 1000pi/3 -->

pi(h) = 40pi/3 -->

h = 40/3

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Write the polynomial in standard form 8-5x+x^3-2x^4
yan [13]

Answer:

-2x^4+x^3-5x+8

Step-by-step explanation:

8-5x+x^3-2x^4

Write the polynomial from highest powers of x to lowest

-2x^4+x^3-5x+8

8 0
3 years ago
Right angled triangle calc: find c, a=38, b=22.99999
tekilochka [14]
A²+b²=c²
38²+22.99999²=c²
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8 0
3 years ago
Someone please help :(
OleMash [197]
The answer would be answer choice a.

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tan (51) = 1.235
tan (45) = 1
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Hope this helps :)
3 0
3 years ago
Use the distributive property to create an equivalent expression to the equation 9(2j + 5j).
wel

Answer: i think the answer is -45j - 9k

Step-by-step explanation:

6 0
2 years ago
I need help with these questions ( see image for question ).<br>Please show working.<br>​
antiseptic1488 [7]

Answer:

  • k = -4 ± 2√5

Step-by-step explanation:

#22

<h3>Given </h3>
  • Equation x² -4x + 1 = k(x - 4) with equal roots
<h3>To find</h3>
  • The value of k
<h3>Solution</h3>

<u>The equation in standard form is:</u>

  • x² -4x + 1 = k(x - 4)
  • x² - 4x - kx + 1 + 4 = 0
  • x² - (k + 4)x + 5 = 0

<u>When the quadratic equation has equal roots its discriminant is zero</u>

  • D = 0
  • b² - 4ac = 0
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  • (k + 4)² = 20
  • k + 4 = ± √20
  • k = - 4 ± √20
  • or
  • k = -4 ± 2√5
5 0
2 years ago
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