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3 years ago

8

Help please this is urgent

2 answers:

Licemer1 [7]3 years ago

8 0

25a-5a

Hope this helps!!!!

Wewaii [24]3 years ago

5 0

Answer:

25 - 5a

Step-by-step explanation:

5(5 - a)

25 - 5a

Hope this helps, thank you !!

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A company that produces ribbon has found that the marginal cost of producing x yards of fancy ribbon is given by Upper C prime l

denis-greek [22]

Answer:

Step-by-step explanation:

Given:

$C_{(x)}=-0.00001x^{2}-0.02x+49$

for x≤1400; N = 5

So, Δx = $\frac{1400-0}{5} =280\\\\\int\limits^{1400}_0 {C(x)} \, dx$ =∑C(a + nΔx).Δx

=C(0)Δx + C(280)Δx + C(560)Δx + C(840)Δx + C(1120)Δx

= Δx[C(0) + C(280) + C(560) + C(840) + C(1120)]

= 280[49 + 42.616 + 34.664 + 25.144 + 14.056]

=280[165.48]

=46334 approx

8 0

3 years ago

The bases on a softball field are square. What is the area of each base if one side is 15 inches? Do not write units.

iogann1982 [59]

Area of a square is side length^2

Area = 15^ 2 = 15 x 15 = 225 square inches.

4 0

3 years ago

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Mary took a math test and she got four questions incorrect and 21 correct. What percent did answer correctly?

AnnZ [28]

Answer:

84%

Step-by-step explanation:

21 correct + 4 wrong = 25 questions in total

$\frac{21}{25}$ x 4 = $\frac{84}{100}$

$\frac{84}{100}$ = 0.84

0.84 = 84%

6 0

3 years ago

I need help with question 2 Only

kiruha [24]

The correct answer is C

5 0

2 years ago

Can y’all please help me answer these questions

mario62 [17]

Step-by-step explanation:

4.

⇒ $V = \pi r^{2}h$

⇒ $V = \pi(10)^{2}(40)$

⇒ $V = 4000\pi$

⇒ $V = 12566.4cm^{3}$

5.

⇒ $V = \frac{1}{3}\pi r^{2}h$

⇒ $V = \frac{1}{3}\pi (8)^{2}(h)$

As we know the radius and slant height, we can use Pythagoras' Theorem to find the perpendicular height.

⇒ $a^{2} + b^{2} = c^{2}$

⇒ $(8)^{2} + h^{2} = 20^{2}$

⇒ $h = \sqrt{20^{2} - 8^{2}}$

⇒ $h = 4\sqrt{21}$

Now substitute this into the volume formula.

⇒ $V = \frac{1}{3}\pi (8)^{2}(4\sqrt{21})$

⇒ $V = \frac{256\sqrt{21} }{3}\pi$

⇒ $V = 1228.5mm^{3}$

6.

⇒ $V = l^{3}$

⇒ $V = (3.1)^{3}$

⇒ $V = 29.8inches^{3}$

7.

⇒ $V = \frac{1}{3}lwh$

⇒ $V = \frac{1}{3}(12)(4)(6)$

⇒ $V = 96inches^{3}$

6 0

2 years ago

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