All categories

3 years ago

A. Graph A B. Graph B C. Graph D. Graph D

Mathematics

1 answer:

Nimfa-mama [501]3 years ago

8 0

Answer:

Graph C

Step-by-step explanation:

You might be interested in

How do you know a number is divisible by 5?

djverab [1.8K]

The last number will either be 5 or 0. For example 15, or 20.

7 0

3 years ago

Read 2 more answers

Halla los cocientes y los restos de estas divisiones de polinomios pordos procedimientos diferentes

e-lub [12.9K]

Change the verbs in italics to indicate that they were in progress at a time in the past.

1. Marta comía en el comedor.

7 0

4 years ago

Write the equation of a quadratic function who has the vertex of (4,-7)

timama [110]

Given:

The vertex of a quadratic function is (4,-7).

To find:

The equation of the quadratic function.

Solution:

The vertex form of a quadratic function is:

$y=a(x-h)^2+k$ ...(i)

Where a is a constant and (h,k) is vertex.

The vertex is at point (4,-7).

Putting h=4 and k=-7 in (i), we get

$y=a(x-4)^2+(-7)$

$y=a(x-4)^2-7$

The required equation of the quadratic function is $y=a(x-4)^2-7$ where, a is a constant.

Putting a=1, we get

$y=(1)(x-4)^2-7$

$y=(x^2-8x+16)-7$ $[\because (a-b)^2=a^2-2ab+b^2]$

$y=x^2-8x+9$

Therefore, the required quadratic function is $y=x^2-8x+9$ .

6 0

3 years ago

The life in hours of a 75-watt light bulb is known to be normally distributed with standard deviation σ = 25 hours. A random sam

irina [24]

Answer: a) (1008.34,1019.658) b) (1009.24,1018.76)

Step-by-step explanation:

Since we have given that

n = 75

mean = 1014 hours

Standard deviation = 25 hours

At 95% two sided , z = 1.96

So, confidence interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.96\dfrac{25}{\sqrt{75}}\\\\=1014\pm 5.658\\\\=(1014-5.658,1014+5.658)\\\\=(1008.34,1019.658)$

(b) Construct a 95% lower confidence bound on the mean life.

z = 1.65

So, confidence interval would be

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.65\times \dfrac{25}{\sqrt{75}}\\\\=1014\pm 4.76\\\\=(1014-4.76,1014+4.76)\\\\=(1009.24,1018.76)$

Hence, a) (1008.34,1019.658) b) (1009.24,1018.76)

4 0

4 years ago

Convert 15000 ounces to tons

MrRa [10]

Answer:

0.46875 tons

Step-by-step explanation:

to find ounces to tons, you divide the mass by 32000

15000/32000=0.46875

I hope this helps!

5 0

3 years ago