All categories

2 years ago

Cecily made a poster in the shape of a quadrilateral

Mathematics

1 answer:

Sholpan [36]2 years ago

4 0

And what else, add more detail so i can answer

You might be interested in

Monthly sales of a particular personal computer are expected to decline at the following rate of S'(t) computers per month, whe

Len [333]

Answer:

$S(t) = -18t^\frac{5}{3}+2440$

Company will take approximately 14 months

Step-by-step explanation:

Given function that shows the change rate of computers,

$S'(t)=-30 t^{\frac{2}{3}}$

Where,

t = number of months

On integrating,

$\int S'(t) = -30\int t^{\frac{2}{3}} dt$

$S(t) = -30(\frac{t^{\frac{2}{3}+1}}{\frac{2}{3}+1})+C$

$S(t) = -30 (\frac{t^{\frac{2+3}{3}}}{\frac{2+3}{3}})+C$

$S(t) = -30(\frac{t^\frac{5}{3}}{\frac{5}{3}})+C$

$S(t) = -30(\frac{3t^\frac{5}{3}}{5})+C$

$S(t) =-18t^\frac{5}{3}+C$

According to the question,

S(0) = 2,440,

$\implies -18(0)^\frac{5}{3}+C=2440\implies C = 2440$

Hence, the required function,

$S(t) = -18t^\frac{5}{3}+2440$

If S(t) = 1,000,

$-18t^\frac{5}{3}+2440=1000$

$-18t^\frac{5}{3}=-1440$

$t^\frac{5}{3}=80$

$t = (80)^\frac{3}{5}\approx 13.86$

6 0

2 years ago

Determine whether these functions are invertible. Find inverses of the invertible functions.

Flauer [41]

B) is not invertible, while the others are.
a) The inverse is x+2
c) The inverse is $\sqrt{x}$
d) The inverse is $\sqrt[3]{x}$

6 0

2 years ago

Simplify the expression:<br> 1.9b + 8.2(8.8 + 1.2b)

leva [86]

Answer:

11.74b + 72.16

Step-by-step explanation:

In this question, we're going to simplify the expression.

Solve:

1.9b + 8.2(8.8 + 1.2b)

Use the distributive property.

1.9b + 72.16 + 9.84b

Combine like terms.

11.74b + 72.16

Since we can't simplify any further, 11.74b + 72.16 would be your answer.

7 0

3 years ago

Rewrite in simplest terms: (-8x + 5) - (x – 7)

Ilia_Sergeevich [38]

Answer:

-9x+12

Step-by-step explanation:

(-8x + 5) - (x – 7)

Distribute the minus sign

(-8x + 5) - x + 7

Combine like terms

(-8x -x+ 5+7)

-9x +12

7 0

2 years ago

Read 2 more answers

The base of a cube is 1/4 ft squared. Whats the volume of the cube? also can you explain your answer so i can answer other quest

MrMuchimi

It would be 1/64 I hope this helps with your question.

8 0

2 years ago

Read 2 more answers