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2 years ago

Graph h(x)=−|x+2|+4.

Mathematics

1 answer:

Karo-lina-s [1.5K]2 years ago

3 0

The graph is in the attached image.

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What is x+9=2(x_1)^2 in the form of ax^2+bx +c=0

Naddik [55]

x + 9 = 2(x - 1)^2
x + 9 = 2(x^2 - 2x + 1)
x + 9 = 2x^2 - 4x + 2
2x^2 - 4x + 2 - x - 9 = 0
2x^2 - 5x -7 =0

7 0

3 years ago

A square is inscribed in a circle. If the area of the square is 9 in^2, what is the ratio of the circumference of the circle to

Alja [10]

Answer:

√2π / 4

Step-by-step explanation:

3 0

3 years ago

Janeile has 6 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the

Flauer [41]

Answer:

running 1.5 hours

Walking 4.5 hours

Step-by-step explanation:

Let the amount of time she spends on walking be x

d/3 + d/9 = 6 Multiply by 9

3d + d = 6*9

4d = 54 Divide by 4

4d/4 = 54/4

d = 13 2/4 = 13 1/2 = 13.5 miles

d/3 = 13.5/3 = 4.5 hours

d/9 = 13.5/9 = 1.5 hours

Total 6 hours

I hope this is the right interpretation.

7 0

2 years ago

What formula should I use for this?

mr_godi [17]

If they're asking for the nth term, you should use n in your formula, ie.,

a(n) = 6000 * 0.5ⁿ

However, the first term is when n=1, so your formula should really be:

a(n) = 6000 * 0.5⁽ⁿ⁻¹⁾

Then the 8th term is 46.875

8 0

4 years ago

A study was being conducted about birth weights of babies at a local hospital and found the average to be 7.6 pounds with a stan

dangina [55]

Answer:

The birth weight associated with the lowest 1% is 4.6 pounds.

Step-by-step explanation:

Let X represent the birth weights of babies.

It is provided that $X\sim N(7.6,1.3^{2})$

It is also provided that many pre-mature births weights are in the lowest 1% of births.

Let x represent the births weights that are in the lowest 1% of births.

That is, P (X < x) = 0.01.

⇒ P (Z < z) = 0.01

The corresponding z-score is, z = -2.33.

Compute the value of x as follows:

$z=\frac{s-\mu}{\sigma}\\\\-2.33=\frac{x-7.6}{1.3}\\\\x=7.6-(1.3\times 2.33)\\\\x=4.571\\\\x\approx 4.6$

Thus, the birth weight associated with the lowest 1% is 4.6 pounds.

7 0

3 years ago