All categories

3 years ago

Pls help me on this math watch!!! this is non calculator

Mathematics

1 answer:

Andru [333]3 years ago

8 0

The height of the cone is 4 cm (approx).

Step-by-step explanation:

Given,

The radius (r) of the cone = 4.96 cm

Volume (V) = 102 cm³

To find the height (h) of the cone.

Formula

The volume of a cone V = $\frac{1}{3}$ πr²h

Now,

According to the problem,

$\frac{1}{3}$ πr²h = 102

or, $\frac{1}{3}$ × $\frac{22}{7}$ ×(4.96)²h= 102

or, h = $\frac{102X7X3}{4.96^{2}X22 }$

or, h = 3.95 = 4 (approx)

so,

Height = 4 cm (approx)

You might be interested in

Can some one please help me????

Juli2301 [7.4K]

$-\frac{3}{2}w-\frac{7}{8}=\frac{1}{2}|\cdot8\\
-12w-7=4\\
-12w=11\\
w=-\frac{11}{12}
$

5 0

3 years ago

13. Last year, Stacy purchased 81 shares of Stock A at $55 per share, 64 shares of Stock B at $57 per share, and a ten-year $350

tensa zangetsu [6.8K]

Answer:

She bought stock A for 4,840, stock B for 3,648, bond for 3,100

She sold A for, 4,941 = 101 profit, stock B for 4,032 = 384 profit.

I would assume the answer would be B.

7 0

3 years ago

Read 2 more answers

Using the binomial theorem, expand the expression (4 + y) to the power of 4

Flauer [41]

Answer:

When raised to the power of 4, the binomial (4 + y) expands to:

$y^4 + 16y^3 + 96y^2 + 256y + 256$

Step-by-step explanation:

$(4 + y)^4 \\= (y^2 + 8y + 16)^2\\= y^4 + 8y^3 + 16y^2 + 8y^3 + 64y^2 + 128y + 16y^2 + 128y + 256\\= y^4 + 16y^3 + 96y^2 + 256y + 256$

8 0

3 years ago

James estimated the total cost of groceries to be $50.

Lilit [14]

The answer is 30%.... because 50/65 is .3

5 0

4 years ago

Read 2 more answers

Hi, can someone help with these two questions ASAP! (Ignore the multiple choice I circled, not sure if it’s correct)

Sindrei [870]

Answer:

1) D. $y = -\frac{3}{2}\cdot x^{12} -7\cdot x^{5}+\frac{2}{3}\cdot x -10$

2) E. The coefficient of $x$ is -16.

Step-by-step explanation:

1) A polynomial is an algebraic expression of the form $p(x) = \Sigma \limits_{i = 0}^{n} c_{i}\cdot x^{i}$ , where $n$ is the grade of the polynomial. In this case, the only equation that satisfies this definition is:

$y = -\frac{3}{2}\cdot x^{12} -7\cdot x^{5}+\frac{2}{3}\cdot x -10$

Correct answer: D

2) Let $p(x) = (2\cdot x + 1) \cdot (5\cdot x^{3}-8\cdot x +4)$ , we proceed to expand the expression by algebraic means:

$p(x) = (2\cdot x + 1)\cdot (5\cdot x^{3}) -(2\cdot x +1)\cdot (8\cdot x) + 4\cdot (2\cdot x + 1)$

$p(x) = 10\cdot x^{4}+5\cdot x^{3}-16\cdot x^{2}+4$

We see that coefficients for $x^{2}$ and $x$ are -16 and 0, respectively. Hence, the incorrect answer is E.

3 0

3 years ago