2 years ago

Pre calculus question need help asap

Mathematics

1 answer:

Marina CMI [18]2 years ago

7 0

B I think not sure .

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I will mark you brainiest if you can answer this

Katarina [22]

Answer:

Step-by-step explanation:

Gl :>

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2 years ago

Need help figuring this out!

Ulleksa [173]

For this case, we have that by definition, the area of a triangle is given by:

$A = \frac {b * h} {2}$

where:

b: It's the base

h: It's the height

In this case we have:

$b = 21 \ ft\\h = 6 \ ft$

Substituting:

$A = \frac {21 * 6} {2}\\A = 63 \ ft ^ 2$

Answer:

$63 \ ft ^ 2$

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2 years ago

Each night, Abby recorded how many pages of a book she read before going to bed. Her data is as follows: 7, 9, 10, 6, 8, 12, 5,

aksik [14]

Answer:

mean = 12.9

median = 9.5

Step-by-step explanation:

mean = sum of all observations / total no. of observations

= 7+9+10+6+8+12+5+11+48+13 / 10

=129 / 10

= 12.9

median = middlemost no. after arranging in ascending order

= 5,6,7,8,9,10,11,13,48

=9 and 10

=9+10 / 2

= 19 / 2

= 9.5

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3 years ago

The box plot represents this data set.

MaRussiya [10]

A represents the lower number in the group.

3 0

2 years ago

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How many solutions are there to the system of equations?

Brut [27]

Answer:

The system has no solutions

Step-by-step explanation:

we have

$4x-5y=5$ -----> equation A

$-0.08x+0.10y=0.10$ ----> equation B

Isolate the variable y in the equation A

$5y=4x-5$

$y=\frac{4}{5}x-1$

$y=0.8x-1$ -----> equation A'

Isolate the variable y in equation B

$0.10y=0.08x+0.10$

$y=\frac{0.08}{0.10}x+1$

$y=0.8x+1$ ------> equation B'

Compare the equations A' and B'

The lines have the same slope but different y-intercept

Are parallel lines

therefore

The system has no solutions

6 0

2 years ago

Read 2 more answers