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2 years ago

HELP PLEASE

Mathematics

2 answers:

Viktor [21]2 years ago

8 0

Answer:

your answer is option B. x≤-2

LuckyWell [14K]2 years ago

6 0

3x < -6

x < -2

B is your correct answer

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If f (x)=3x, g(x)=x-3, and h(x)= square root of x, find (fogoh)(25)

Lelu [443]

(f o g o h)(x) = f { g [ h(x) ] }

Which means: apply first function h, then apply function g to the result, and finally apply function f to the new result.

h(25) = √25 = 5

g(5) = 5 - 3 = 2

f(2) = 3(2) = 6.

Answer: 6

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3 years ago

Pizzeria Napoli sells a round pizza with diameter 16 inches and a square pizza with side length 15 inches. Which of the two shap

zavuch27 [327]

Answer: Square, 24 square inches

Step-by-step explanation:

Given

Diameter of round pizza $d=16\ in.$

Side of square pizza $a=15\ in.$

Area of circle $\pi r^2$

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$\therefore \text{Area of round Pizza}=\pi \times (\frac{16}{2})^2\\\Rightarrow A_1=\pi \times 8^2=201.088\ in.^2$

The area of square pizza is

$A_2=15^2=225\ in.^2$

Clearly, the area of square pizza is more and the difference in their area is

$\Rightarrow A_2-A_1=225-201.088=23.91\approx\ 24\ in.^2$

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2 years ago

You deposit $2000 in a savings account earning 5% simple interest. How long will it take for the balance of the account to be $3

Elden [556K]

A year and a half or 18 months

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3 years ago

Write each quadratic expression in standard form. Draw a diagram if needed.<br> (x+4)(x-1)

12345 [234]

Answer:

The standard form of the quadratic equation is x² + 3·x - 4 = 0

Step-by-step explanation:

The standard form of a quadratic equation is a·x² + b·x + c = 0

Given that the expression of the quadratic equation is (x + 4)·(x - 1) = y, we can write the given expression in standard form by expanding, and equating the result to zero as follows;

(x + 4)·(x - 1) = x² - x + 4·x - 4 = x² + 3·x - 4 = 0

The standard form of the quadratic equation is x² + 3·x - 4 = 0

The graph of the equation created with MS Excel is attached

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2 years ago

The domain of the following relation: R: {(−4, 8), (8, 10), (5, 4), (1, 6), (5, −9)} is (1 point)

777dan777 [17]

I think the answer is {-4,1,5,8}

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3 years ago