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soldier1979 [14.2K]
4 years ago
15

What is the minimum value of the function?

Mathematics
1 answer:
12345 [234]4 years ago
3 0

Answer:

-1 ..?

Step-by-step explanation: because the lowest number a curve touches is -1

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Can someone explain this step by step? I'm very confused on how to solve it. Thanks!
Rashid [163]

Answer:

x = -8

Step-by-step explanation:

I will show each step algebraically. If you need further explanation, feel free to ask questions :)

\frac{x}{2} +7=3\\                     Rewrite

\frac{x}{2} =-4                        Subtract 7

x =-8                        Multiply by reciprocal (2/1)

I hope this helps!

3 0
3 years ago
Read 2 more answers
An equilateral triangle has a perimeter of 15x + 24. What is the length of one side of the triangle?​
NISA [10]

Answer:

5x+8

Step-by-step explanation:

\frac{15x+24}{3} =\frac{15x}{3} +\frac{24}{3} =5x+8

6 0
3 years ago
Geometry homework help!! Please!!
Tems11 [23]

Answer:

∠A ≈ 66°

∠B ≈ 24°

AC ≈ 1.2

Step-by-step explanation:

SOH CAH TOA and the Pythagorean theorem are useful tools for solving right triangles. The first tells you ...

Sin = Opposite/Hypotenuse

For ∠A, that means ...

sin(A) = BC/AB = 2.7/2.95

The inverse sine function (sin⁻¹ or arcsin) is used to find the angle from its sine value, so ...

A = arcsin(2.7/2.95) ≈ 66°

Likewise, the ratio for angle B involves the adjacent side:

Cos = Adjacent/Hypotenuse

cos(B) = BC/AB = 2.7/2.95

B = arccos(2.7/2.95) ≈ 24°

Of course, angles A and B are complementary, so once you know angle A, you know that angle B is ...

∠B = 90° -∠A = 90° -66° = 24°

___

The Pythagorean theorem can be used to find the unknown side. It tells you ...

AB² = AC² + BC²

2.95² = AC² + 2.7²

AC = √(2.95² -2.7²) ≈ 1.2

___

These calculations are shown in the attachment using a TI-84 graphing calculator set to degrees mode. Any scientific or graphing calculator will do.

5 0
3 years ago
a beetle is 1.8cm long. a drawing of the beetle is made using a scale of 5:1. what is the length of the beetle in the drawing?
Delvig [45]

Answer: The length of the beetle in the drawing is 9 cm.

Step-by-step explanation:

Hi, since is a scaling up scale, we have to multiply the original length of the beetle (1.8 cm) by 5 to obtain the length of the beetle in the drawing.

Mathematically speaking

5 x 1.8 = 9 cm

The length of the beetle in the drawing is 9 cm.

This type of scale is used to increase in size.

Feel free to ask for more if needed or if you did not understand something.

3 0
3 years ago
The price of an airline ticket from St. Louis to Washington D.C. costs $250. A bus ticket costs $100. Traveling by plane takes 2
Aleksandr-060686 [28]

Answer:

He would gain by choosing air travel if, and only if, he values his time at more than $5 per hour.

Step-by-step explanation:

The problem states that:

A bus ticket from Washington to St. Louis costs $100, while it takes 32 hours to arrive.

A plane ticket from Washington to St. Louis costs $250, while it takes 2 hours to arrive.

Other things constant, Andrew would gain by choosing air travel if, and only if, he values his time at more than

If Andrew choses to go by plane, he saves 32-2 = 30 hours at the expense of $250-$100 = $150.

So, dividing the extra cost by the number of hours saved:

\frac{150}{30} = 5

He would gain by choosing air travel if, and only if, he values his time at more than $5 per hour.

7 0
4 years ago
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