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3 years ago

Heeelp! Can someone explain me this problem?

Mathematics

2 answers:

dimaraw [331]3 years ago

7 0

The answer for this is b

kompoz [17]3 years ago

3 0

I can the answer is b

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The hikers plan to visit scenic Lookout. They will rest after they hike 2 miles. Then they will hike the remaining 1 3/4 miles t

Dvinal [7]

They will walk 4 wholes and 1/4 so 4 1/4

5 0

3 years ago

Frosty Whip, Inc. budgets 65 percent of its total expenses for marketing. Total expenses for the company this year are $500,000.

FinnZ [79.3K]

Frosty Whip, Inc. budgets 65 percent of its total expenses for marketing. Total expenses for the company this year are $500,000. What is the dollar amount Frosty Whip has budgeted for marketing?

$325,000

8 0

4 years ago

Read 2 more answers

Write a polynomial function of least degree with integral coefficients that has the given zeros. -5, 3i

Virty [35]

Solving for the polynomial function of least degree with integral coefficients whose zeros are -5, 3i

We have:
x = -5

Then x + 5 = 0

Therefore one of the factors of the polynomial function is (x + 5)

Also, we have:
x = 3i
Which can be rewritten as:
x = Sqrt(-9)
Square both sides of the equation:
x^2 = -9
x^2 + 9 = 0

Therefore one of the factors of the polynomial function is (x^2 + 9)

The polynomial function has factors: (x + 5)(x^2 + 9)
= x(x^2 + 9) + 5(x^2 + 9)

= x^3 + 9x + 5x^2 = 45

Therefore, x^3 + 5x^2 + 9x – 45 = 0

f(x) = x^3 + 5x^2 + 9x – 45

The polynomial function of least degree with integral coefficients that has the given zeros, -5, 3i is f(x) = x^3 + 5x^2 + 9x – 45

5 0

3 years ago

Expressions equivelant to 64^x

Lana71 [14]

$64^{\text{x}} = (8^2)^{\text{x}} = 8^{2\text{x}}$

The rule used is that $(a^b)^c = a^{bc}$ we multiply the exponents b and c.

Or we could say this

$64^{\text{x}} = (4^3)^{\text{x}} = 4^{3\text{x}}$

Or,

$64^{\text{x}} = (2^6)^{\text{x}} = 2^{6\text{x}}$

Therefore, we have multiple possible answers.

4 0

2 years ago

The length of a rectangular driveway is five feet more than three times the width. The area is 350ft2. Find the width and length

crimeas [40]

Answer:

width -- 10 ft
length -- 35 ft

Step-by-step explanation:

We can let x represent the width. Then the length will be represented by (3x+5), a value 5 more than 3 times the width.

The area is the product of length and width, so is ...

A = (3x +5)(x) = 3x^2 +5x

To make the area 350, we can find the value of x from ...

3x^2 +5x = 350

This can be solved a number of ways. One of them is "completing the square".

3(x^2 +5/3x) = 350

We choose to divide by 3 and add the square of half the x-coefficient.

x^2 +5/3x +(5/6)^2 = (350/3) + (5/6)^2

(x +5/6)^2 = 4225/36 . . . . simplify

x +5/6 = ±√(4225/36) = ±10 5/6 . . . . take the square root

x = 10 or -11 2/3 . . . . subtract 5/6

The positive solution is the one of interest: x = 10.

The driveway is 10 ft wide and 35 ft long.

4 0

3 years ago