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3 years ago

What are the coordinates of point P on this graph?

Mathematics

2 answers:

stich3 [128]3 years ago

6 0

Answer:

B. (6,4)

Step-by-step explanation:

Count the squares on the horizontal line and then on the vertical line until you touch the point on the graph. When counting, you get 6 over and 4 up before you get to P.

GarryVolchara [31]3 years ago

3 0

Answer:

The coordinates are 6,5.

Step-by-step explanation:

Go over 6 and go up 5 and 6ou have your answer.

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The diameter of a sphere is measured to be 4.17 in.

gtnhenbr [62]

Step-by-step explanation:

To find the radius of the sphere we must convert the inches to centimeters

Using the conversation

1 inch = 2.54 cm

If 1 inch = 2.54 cm

4.17 inch = 2.54 × 4.17 = 10.59 cm

We can find the radius using the formula

$radius = \frac{diameter}{2}$

From the question

diameter = 10.59 cm

So we have

$radius = \frac{10.59}{2}$

<h3>radius = 5.30 cm</h3>

Surface area of a sphere= 4πr²

where

r is the radius

Surface area = 4(5.30)²π

= 112.36π

= 352.989

We have the answer as

<h3>Surface area = 353 cm²</h3>

Volume of a sphere is given by

$\frac{4}{3} \pi {r}^{3}$

r = 5.30

The volume of the sphere is

$\frac{4}{3} ( {5.30})^{3} \pi$

= 623.61451

We have the answer as

<h2>Volume = 623.6 cm³</h2>

Hope this helps you

3 0

3 years ago

If yall help me with all the answers ill give you 32 points. Ik this is easy but I'm too lazy to do this. someone help me, pleas

Anna007 [38]

Answer:

100-both

75-5

565- 5

2815- 5

10050- both

57- 3

1365- 3

14- 2

81- 3

3850- 2

333- 9

1125- 9

448- 8

630- 9

5496- 8

114- 6

21,750- 6

3580- 4

2528- 4

944- 4

Step-by-step explanation:

8 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

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