3 years ago

Selena is graphing the inequality x <-2

Mathematics

1 answer:

steposvetlana [31]3 years ago

4 0

Draw an arrow pointing to the left on left side of the open circle

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A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th

Iteru [2.4K]

Answer:

8.90 seconds

Step-by-step explanation:

When the rocket hits the ground, its height ( <em>y</em> ) will be zero. This means we can write the equation as:

0 = -16x²+129x+119

So we need to <u>solve that equation</u>:

a = -16

b = 129

c = 119

x = $\frac{-b\frac{+}{-}\sqrt{b^2-4ac} }{2a}$

x₁ = -0.84

x₂ = 8.90

We discard x₁, as it is negative.

So the answer is x₂, 8.90 seconds.

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2 years ago

W= x/y-x solve for x

svetoff [14.1K]

Answer: w=−xy+x/y

Step-by-step explanation:

Let's solve for w.

−x

Step 1: Multiply both sides by y.

wy=−xy+x

Step 2: Divide both sides by y.

−xy+x

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3 years ago

6• 2hen+3pens-5anchors

choli [55]

Answer:

$180$

Step-by-step explanation:

$6 \times 2 \times 3 \times 5$

$12 \times 15$

$=180$

7 0

4 years ago

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Two numbers are in a ratio 11:7. If the smaller number is 700, what is the larger number? Pls tell with steps

Nutka1998 [239]

Answer:

The larger number is $1100$

Step-by-step explanation:

Let larger number be $x$

We have

$\frac{x}{700} =\frac{11}{7} \\\\x=100\times11\\\\=1100$

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2 years ago

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Determine algebraically whether the function is even, odd, or neither. f(x = -5x2 4

Sunny_sXe [5.5K]

What you said doesn't even make sense.

I'll assume you said f(x) = -5x^2 + 4.

This is an even function.

f(-x) = f(x)

6 0

3 years ago