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3 years ago

Please help me with this please

Mathematics

1 answer:

jekas [21]3 years ago

5 0

24/100 like NewTube
30/100 like Friendspace
14/100 like NaviChat
12/100 like other
20/100 like none

100 - 20 = 80
Therefore, exactly 80% of the grandparents have a favourite social media website. The first statement is most likely to be correct

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I just need one more answer to this. Please someone help!

den301095 [7]

Answer:

(1,0)

(-2,3)

(5,24)

Step-by-step explanation:

To solve this you can can just plug in the x and y values and see which work

y = x²-1

Lets test (0,1):

1 = 0²-1

1 = -1

This pair does not work, because 1 does not equal -1

Lets test (1,0):

0 = 1²-1

0 = 0

This does work, because 0 equals 0

Lets test (3,5):

5 = 3²-1

5 = 9 - 1

5 = 8

This pair does not work, because 5 does not equal 8

Lets test (5,24):

24 = 5²-1

24 = 25 -1

24 = 24

This pair does work, because 24 equals 24

Lets test (-2,3):

3 = (-2)²-1

3 = 4-1

3 = 3

This pair does work, because 3 equals 3

Lets test (-4,-17):

-17 = (-4)²-1

-17 = 16 - 1

-17 = 15

This pair does not work, because -17 does not equal 15

So the pairs that are on the graph are:

(1,0)

(-2,3)

(5,24)

4 0

2 years ago

Derrick's Dog Sitting and Darlene's Dog Sitting are competing for new business. Derrick's Dog Sitting charges $12 plus $7 per ho

Juli2301 [7.4K]

Answer:

16+9x=20+7x Derrick's dog service is more economical

8 0

2 years ago

Read 2 more answers

Which relationships describe angles 1 and 2?

11111nata11111 [884]

Adjacent angles I think, as they are next to each other. Sorry if I’m wrong :(

4 0

2 years ago

Read 2 more answers

The following chart shows the number of rows in an auditorium and the total number of seats. What equation defines the number of

Anastaziya [24]

Answer:

Answer: c) S=20R+60

Step-by-step explanation:

Linear Model

The chart supplied shows the number of rows (R) in an auditorium and the total of seats (S).

We'll find the equation that relates them. The equation of a line can be expressed in the slope-intercept form:

S = mR + b

Where m is the slope and b is the intercept.

The slope is found by:

$\displaystyle m=\frac{S_2-S_1}{R_2-R_1}$

We'll use two sample points (20,460) and (45,960):

$\displaystyle m=\frac{960-460}{45-20}=\frac{500}{25}$

m = 20

The value of b can be found by using one of the points, for example (20,460), and having m=20:

460 = 20*20 + b

Thus: b = 460 - 400 = 60.

The equation is:

S = 20R + 60

You can test the other points and check they belong to the same line.

Answer: c) S=20R+60

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3 years ago

The time it takes for a ferry to reach a summer resort from the mainland is Normally distributed with mean 2 hours and standard

m_a_m_a [10]

Answer:

2.88 minutes

Step-by-step explanation:

Solution can be found in attachment.

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2 years ago