2 years ago

(Please someone help me!) (No links!)

Mathematics

1 answer:

Tems11 [23]2 years ago

3 0

40.00- 28.8% = 28 so it is 28.8% !!!!

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3/5 / 6 show ur work

faltersainse [42]

Answer:

$\frac{1}{10}$

Step-by-step explanation:

$\displaystyle \frac{\frac{3}{5} }{6}$

$\frac{3}{5\times \:6}$

$\frac{3}{30}$

$=\frac{1}{10}$

4 0

4 years ago

Read 2 more answers

Identify the lateral area and surface area of a regular triangular pyramid with base edge length 14 cm and slant height 15 cm

posledela

Answer:

D) L = 315 cm2 ; S = 399.9 cm2

Step-by-step explanation:

Lateral area;

3 × (½)(14)(15)

315 cm²

Surface area:

315 + (½)(14)(14)sin(60)

399.8704896 cm²

6 0

3 years ago

Read 2 more answers

∫∫x²(y-x)dxdy ,d là miền giới hạn bởi các đường y=x² và x=y²

Valentin [98]

It looks like the integral is

$\displaystyle \iint_D x^2 (y-x) \,\mathrm dx\,\mathrm dy$

where D is the set

D = {(x, y) : 0 ≤ x ≤ 1 and x ² ≤ y ≤ √x}

So we have

$\displaystyle \iint_D x^2(y-x)\,\mathrm dx\,\mathrm dy = \int_0^1 \int_{x^2}^{\sqrt x} x^2(y-x)\,\mathrm dy\,\mathrm dx \\\\ = \int_0^1 \left(\frac{x^2y^2}2-x^3y\right)\bigg|_{y=x^2}^{y=\sqrt x} \\\\ = \int_0^1 \left(\frac{x^3}2-x^{7/2}+x^5-\frac{x^6}2\right)\,\mathrm dx \\\\ = \left(\frac{x^4}8 - \frac{2x^{9/2}}9 + \frac{x^6}6 - \frac{x^7}{14}\right)\bigg|_{x=0}^{x=1} = \frac18-\frac29+\frac16-\frac1{14} = \boxed{-\frac{1}{504}}$

5 0

3 years ago

Solve for x. −2 = 3/9x

dlinn [17]

Answer: -6 That’s your answer.

3 0

3 years ago

Ed's new car has a value of $23,500, but it is expected to depreciate at a rate of 7.5% per year. If you were to write an expone

Delicious77 [7]

Answer:

0.925 or 92.5%

Step-by-step explanation:

y=a(1-b)^x

decay factor is 1-b <- and the part we care about

b is 7.5%=0.075

1-0.075

=0.925

I'm a little rusty on exponential rates, but I hope this helps!

3 0

3 years ago