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3 years ago

9 = -d + 17 A.-2 B.8 C.10 D.-8

2 answers:

4 0

Subtract 17 from both sides

9= -d+17
9 - 17 = -d + 17 - 17

-8 = -d

Then divide.

-8/1 = -d-1

Cancel terms that are in both numerator and denominator

Answer:
8 = d

kaheart [24]3 years ago

3 0

Pringles exposed for being nazi corporation? Here’s evidence for my claim

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If the scale is 2inches = 5miles. What is the amount of miles in 4 inches?

LUCKY_DIMON [66]

Answer:

D. 10 miles

Step-by-step explanation:

As you know 2 inches=5miles so if you add 2 more inches that is equal to 5 miles you will have to add 5 and 5 which equal 10 miles.

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2 years ago

Find the poin on the graph 0f f(x)=1-x^2 that are closest to0(0,0)

zalisa [80]

Represent any point on the curve by (x, 1-x^2). The distance between (0, 0) and (x, 1-x^2) is

$\sqrt{(x-0)^2+(1-x^2-0)^2}=\sqrt{x^2+(1-x^2)^2}=\sqrt{x^2+1-2x^2+x^4}$

To make this easier, let's minimize the SQUARE of this quantity because when the square root is minimal, its square will be minimal.

So minimize $L=x^4-x^2+1$

Find the derivative of L and set it equal to zero.

$\frac{d}{dx}(L)=4x^3-2x \\ 4x^3-2x=0 \\ 2x(2x^2-1)=0$

This gives you $x=0$ or $x^2=\frac{1}{2} \\ x=\pm\sqrt{2}/2$

You can use the Second Derivative Test to figure out which value(s) produce the MINIMUM distance.

$\frac{d^2}{dx}=12x^2-2$

When x = 0, the second derivative is negative, indicating a relative maximum. When $x=\pm\frac{\sqrt{2}}{2}$ , the second derivative is positive, indicating a relative MINIMUM.

The two points on the curve closest to the origin are $\left( \pm\frac{\sqrt{2}}{2},\frac{1}{2} \right)$

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4 years ago

A school is planning a field trip to a theme park. A ticket to the park costs $21. For a group of 50 or more, there is a 16%

Veseljchak [2.6K]

Answer:

325 tickets

Step-by-step explanation:

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3 years ago

The Maplewood symphony orchestra sold 146 tickets and collected a total of $1036 in ticket sales. admission was five dollars for

Gnom [1K]

102 adult tickets were sold.

Step-by-step explanation:

Let,

Adult tickets = x

Children tickets = y

According to given statement;

x+y=146 Eqn 1

8x+5y=1036 Eqn 2

$Multiplying\ Eqn\ 1\ by\ 5\\5(x+y=146)\\5x+5y=730\ Eqn\ 3\\Subtracting\ Eqn\ 3\ from\ Eqn\ 2\\(8x+5y)-(5x-5y)=1036-730\\8x+5y-5x-5y=306\\3x=306\\Dividing\ both\ sides\ by\ 3\\\frac{3x}{3}=\frac{306}{3}\\x=102\\$

102 adult tickets were sold.

Keywords: Linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

(-3,2) 90 degrees about the origin clockwise

drek231 [11]

For 90° clockwise rotation, (x, y) becomes (y, -x).

Your rotated point is (2, 3).

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3 years ago